Seychelles Weather in June — Temperature, Wind, Rain & Travel Conditions
Apr 27, 2026
June marks the start of the cool, dry season on the Seychelles archipelago. Daytime air temperatures settle between 24°C and 29°C (75–84°F), sea surface temperatures hold near 27°C (81°F), and total monthly rainfall averages around 100 mm (3.9 inches) spread across 9–11 short showers. The dominant weather driver is the southeast trade wind — known locally as the alizé de sud-est — which blows steadily at 12–18 knots and brings drier, cooler air from the southern Indian Ocean. Because of this combination of stable temperatures, low rainfall, and reduced humidity, June ranks among the best months of the year to visit the Seychelles.
Seychelles Weather in June at a Glance
June brings warm, dry, and breezy conditions across the Seychelles, driven by the steady southeast trade winds that mark the official start of the cool season. Rainfall is short-lived, sunshine reaches seven to eight hours per day, and humidity drops noticeably compared to the preceding months.
The following figures summarize the typical June climate across the inner islands of the archipelago.
- Average daytime air temperature — 28–29°C (82–84°F)
- Average nighttime air temperature — 24–25°C (75–77°F)
- Average sea surface temperature — 27°C (81°F)
- Monthly rainfall — around 100 mm (3.9 inches)
- Number of rainy days — 9 to 11
- Daily sunshine — 7 to 8 hours
- Relative humidity — 78 to 80 percent
- Average wind — 12–18 knots from the southeast
- UV index — 9 to 11 (extreme)
These numbers represent averages measured at Victoria weather station on Mahé and extrapolated across the inner island group. Actual values vary slightly by island, elevation, and coastal orientation.
Air and Sea Temperature in June
Daytime air temperatures in June range from 28°C to 29°C (82–84°F), while nighttime lows stay between 24°C and 25°C (75–77°F). The sea surface temperature around the main islands holds steady at approximately 27°C (81°F).
Daytime Air Temperature
Daytime air temperatures remain remarkably stable throughout June, rarely deviating by more than 2 °C from the 28–29°C average. The moderating influence of the Indian Ocean and the cooling action of the southeast trade wind prevent the sharp heat peaks common in landlocked tropical destinations. Afternoon cloud development sometimes reduces the peak reading by one or two degrees on the leeward coasts.
Nighttime Air Temperature
Nighttime lows of 24–25°C (75–77°F) feel noticeably cooler than daytime readings because the trade winds continue to blow after sunset. Air conditioning is rarely needed in coastal accommodations during June, and open windows with ventilation are often sufficient for comfortable sleep.
Sea Surface Temperature
Sea surface temperature remains within 1 °C of 27°C (81°F) throughout the month. Shallow lagoons on the leeward side of Praslin and La Digue can warm to 28°C (82°F) during the afternoon, while deeper water on the exposed eastern coasts remains closer to 26°C (79°F).
Temperature Extremes in June
Extreme temperature values are uncommon in June. Daytime peaks above 30°C (86°F) occur on only a handful of days, typically in sheltered coastal areas before the trade wind strengthens in the afternoon. Nighttime lows below 23°C (73°F) are rare and usually confined to the higher elevations of Mahé.
June in the Annual Temperature Cycle
April is the hottest month in the Seychelles, with daytime highs near 31°C (88°F), and August is the coolest, with daytime highs around 27°C (81°F). June sits near the midpoint of this narrow annual range, reflecting the archipelago's low-latitude tropical maritime climate.
Rainfall, Humidity, and Cloud Cover in June
June is one of the driest months of the year on the Seychelles. Average monthly rainfall totals approximately 100 mm (3.9 inches), spread across 9 to 11 rainy days. Precipitation falls as short tropical showers rather than sustained frontal rain.
Monthly Rainfall Totals and Distribution
Total June rainfall of around 100 mm makes the month the third-driest, after July and August. Rain does not fall continuously — dry stretches of four to six days are common, broken by short rainy episodes. This distribution means that even travelers on short trips often experience several days with no rain.
Character of June Showers
A typical June shower lasts 15 to 40 minutes, clears quickly, and is followed by the return of direct sunshine. Outdoor activities are rarely disrupted for a full day, and itineraries generally remain on schedule. Heavy thunderstorms and prolonged rainy fronts are characteristic of the December–March wet season, not of June.
Relative Humidity and Perceived Comfort
Relative humidity averages 78 to 80 percent. The constant southeast trade winds evaporate surface moisture, producing a perceived humidity that feels significantly lower than the absolute reading. Visitors coming from continental climates usually describe the June atmosphere as fresh rather than oppressive.
Cloud Cover Patterns
Cloud cover in June is partial and variable. Mornings often start clear, clouds build over the mountainous interior of Mahé during midday, and brief showers fall in the late afternoon or early evening. Coastal areas, especially on the leeward western and northwestern shores, see more continuous sunshine than inland valleys.
Rainfall Difference Between Coast and Highlands
Rainfall distribution varies significantly between coastal and highland zones of Mahé. The central ridge of Morne Seychellois receives 30 to 50 percent more rainfall than the coast because of orographic lift — air forced upward over the terrain cools and condenses faster. Hikers walking to higher elevations should expect wetter conditions than beach-level forecasts suggest.
Southeast Trade Winds and the Start of the Dry Season
The southeast trade wind, also called the alizé de sud-est, is the dominant weather driver over the Seychelles from May through September. In June, it reaches full strength and brings dry, cooler air from the southern Indian Ocean. This seasonal wind defines nearly every aspect of June weather across the archipelago.
How the Trade Wind Forms
The trade wind originates from the subtropical high-pressure belt near 30° South latitude. Air descends from altitude within this belt, warms adiabatically on the way down, and flows northward toward the equator. Because descending air loses its ability to hold moisture, the trade wind arrives at the Seychelles with low humidity and minimal cloud-forming potential.
Wind Speed and Daily Rhythm in June
Average wind speed in June is 12 to 18 knots (14–21 mph), with gusts reaching 22 to 25 knots (25–29 mph) during the peak of the afternoon. Wind strength builds gradually from mid-morning, peaks between 2 and 5 p.m., and eases after sunset but never stops completely. This daily rhythm shapes the timing of water activities, boat departures, and afternoon beach plans.
Windward and Leeward Coastal Exposure
Coastal exposure determines how each beach experiences the wind. The eastern and southern shores face the trade winds directly and receive a constant breeze, moderate chop, and cooling spray. Western and northern shores sit in the leeward shadow of the islands, stay calmer, and often feel noticeably warmer and more protected.
June is the Opening of the Sailing Season
June officially opens the high sailing season in the Seychelles. The consistent wind direction, predictable daily strengthening, and flat seas in leeward anchorages create reliable conditions for catamaran cruising, dinghy sailing, and yacht charter itineraries. Regattas and sailing events are commonly scheduled from June onward for this reason.
Southeast Trade Wind vs Northwest Monsoon
The southeast trade winds contrast with the northwest monsoon, which dominates the Seychelles from December through March. The northwest flow originates over warm equatorial waters, carries high humidity, and produces the wet season with heavy rainfall, weaker winds, and calmer seas on the eastern coasts. The switch between these two regimes in April and October creates the calmest weather windows of the year.
Sea Conditions, Sunshine, and UV Index
Wave height averages 0.8 to 1.5 meters (2.6–5 feet) on exposed east coasts and stays below 0.5 meters (1.6 feet) in protected western bays. Underwater visibility ranges from 10 to 15 meters (33–50 feet) across most dive sites in the inner islands.
Wave Height and Sea State
Open-water chop builds during the afternoon as trade winds strengthen. Inter-island crossings by speedboat or ferry are generally comfortable in the morning and rougher after 2 p.m. Passengers prone to seasickness should plan transfers for earlier in the day.
Underwater Visibility
Underwater visibility is lower in June than in the April–May shoulder months. The southeast wind agitates the surface layer, lifts fine sand from shallow reefs, and disperses plankton. Leeward dive sites on the western and northern flanks of each island offer the clearest water; eastern and southern sites typically lose 3 to 5 meters of visibility.
Daily Sunshine and Daylight Hours
Daily sunshine averages 7 to 8 hours. Sunrise occurs around 6:10 a.m. and sunset around 6:00 p.m. throughout the month, with less than 10 minutes of variation between June 1 and June 30. Daylight length remains close to 12 hours because of the Seychelles' proximity to the equator.
UV Index and Sun Exposure Risk
The UV index peaks at 9-11, which is classified as extreme. Unprotected skin can burn in 10 to 15 minutes between 11 a.m. and 3 p.m. Broad-spectrum sunscreen with SPF 50 or higher, a wide-brim hat, UV400 sunglasses, and long-sleeve rash guards for water activity are practical protective measures.
June Compared to May, July, and Other Months
June is drier than May, slightly cooler than July, and among the windiest months of the year in the Seychelles. Compared to December and January, rainfall drops by roughly 70 percent and humidity by 10 to 15 percentage points.
The table below summarizes how June compares with surrounding months and annual extremes.
|
Month |
Air Temp °C (°F) |
Sea Temp °C (°F) |
Rainfall mm (in) |
Rainy Days |
Wind knots |
Sunshine h/day |
|
May |
25–30 (77–86) |
28 (82) |
170 (6.7) |
12 |
8–14 |
8 |
|
June |
24–29 (75–84) |
27 (81) |
100 (3.9) |
10 |
12–18 |
8 |
|
July |
24–28 (75–82) |
26 (79) |
85 (3.3) |
9 |
14–20 |
8 |
|
Annual average |
25–30 (77–86) |
28 (82) |
190 (7.5) |
14 |
10–15 |
7 |
|
January (wettest) |
25–30 (77–86) |
29 (84) |
370 (14.6) |
19 |
6–10 |
6 |
|
July (driest) |
24–28 (75–82) |
26 (79) |
85 (3.3) |
9 |
14–20 |
8 |
June vs May
May is the transition month between the humid northwest monsoon and the dry southeast trade wind regime. Rainfall in May is still nearly 70 percent higher than in June, and the wind has not yet reached its steady summer pattern. Travelers arriving at the very end of May often experience a noticeable shift in weather within a few days.
June vs July
July continues the pattern established by June, with several sharper edges. Temperatures are marginally cooler, rainfall drops further to around 85 mm, and wind speeds rise to an average of 14 to 20 knots. Sea conditions become choppier than in June, particularly on eastern coasts, which affects snorkeling clarity and small-boat comfort.
June's Position in the Annual Cycle
June functions as the transitional month between the pleasant but warmer April–May period and the windier July–August peak of the dry season. This position makes June attractive to travelers who want dry weather without the strongest midsummer gusts.
Weather Differences Between Mahé, Praslin, and La Digue in June
Weather across the three main Seychelles islands remains similar in June, with differences driven more by topography and wind exposure than by distance. All three islands sit within a 45-kilometer radius, share the same trade wind regime, and receive near-identical sunshine hours.
Weather on Mahé in June
Mahé is the largest and most mountainous island, reaching 905 meters at Morne Seychellois. Rainfall in the central highlands can exceed 150 mm in June because the mountains force moist air upward, triggering orographic showers. Coastal Mahé stays closer to the 100 mm average.
The leeward western bays of Mahé — Beau Vallon, Anse Takamaka, and Port Launay — are sheltered from the southeast wind and offer the calmest swimming conditions on the island. The windward eastern coast, including Anse Royale, receives stronger breezes and moderate surf.
Weather on Praslin in June
Praslin is smaller and flatter than Mahé, with a maximum elevation of 367 meters at Fond Azore. The island receives slightly less rainfall than Mahé because it lacks the high central ridge that drives orographic uplift.
Lagoon water temperatures on Praslin sit about 0.5 to 1°C higher than the open-ocean average, reaching 28°C (82°F) in sheltered inlets such as Anse Lazio and Anse Volbert. The southeast coast faces the wind more directly than the northwest shoreline.
Weather on La Digue in June
La Digue is the smallest and flattest of the three main islands, with a maximum elevation of 333 meters at Belle Vue. Its eastern beaches — including Anse Source d'Argent and Grand Anse — face the trade wind without topographic shelter and experience strong afternoon breeze and wave action throughout June.
Grand Anse and Petite Anse are particularly exposed and often have wave heights of 1.2 to 1.8 meters. The northwest coast near La Passe tends to be calmer and is preferred for swimming in June.
Choosing an Island Based on June Conditions
For travelers choosing an island specifically for June weather, Praslin offers the best combination of dry conditions, calm leeward bays, and warm lagoon water. Mahé provides more variety and the largest selection of sheltered beaches. La Digue suits visitors prepared for stronger winds and interested in cycling, hiking, and photography rather than prolonged swimming on exposed coasts.
Best Activities for Seychelles in June
June suits beach relaxation, snorkeling in protected bays, hiking, and sailing. Diving conditions weaken slightly compared to April and May due to reduced underwater visibility, but remain good at leeward sites.
Beach Time
Beach time is most comfortable on leeward shores. Beau Vallon, Port Launay, and Anse Major on Mahé, along with Anse Lazio and Anse Georgette on Praslin, stay shielded from the afternoon trade wind. Beaches on eastern and southern coasts receive more breeze, which some visitors welcome for the cooling effect and others find too strong for flat-water swimming.
Snorkeling
Snorkeling works best in sheltered coastal bays where the wind does not disturb the surface. Top June snorkeling sites include Ste. Anne Marine National Park near Mahé, the Curieuse and St. Pierre area near Praslin, and the Port Launay Marine Park on western Mahé. Reef fish, green turtles, and juvenile blacktip sharks are commonly observed.
Diving
Diving remains productive in June, though visibility of 10-15 meters is below the 20–25-meter averages seen in April and May. Leeward dive sites — Brissare Rocks, Shark Bank, and the Aldabra Islet — deliver the clearest water. Whale sharks begin appearing off the outer islands later in the dry season, with peak sightings in September and October.
Sailing and Yacht Chartering
Sailing and yacht chartering reach their annual high season in June. The steady southeast trade wind gives predictable points of sail, afternoons are reliably sunny, and leeward anchorages provide calm overnight mooring. Inter-island passages between Mahé, Praslin, and La Digue take advantage of the consistent wind direction.
Hiking
Hiking conditions are comfortable thanks to the cooler temperatures and lower humidity. Morne Seychellois National Park on Mahé offers forested trails through stands of endemic palms. The Vallée de Mai on Praslin is a UNESCO World Heritage site where the endemic coco de mer palm grows. La Digue has short trails connecting Anse Source d'Argent to Grand Anse and Petite Anse through the island's interior.
Wildlife Observation
Wildlife observation is a year-round activity not significantly affected by June weather. The giant Aldabra tortoises on Curieuse Island and at La Digue's L'Union Estate are accessible at any time. Seabird colonies on Aride and Cousin islands reach peak nesting activity in the middle of the year.
Deep-Sea Fishing
Deep-sea fishing operates from Mahé and Praslin throughout June. Target species include yellowfin tuna, wahoo, sailfish, and dorado. Morning departures before the wind builds produce the most comfortable conditions on the fishing grounds.
June Weather and Yacht Trips in Seychelles
June is one of the strongest months of the year for yacht trips in the Seychelles. The steady southeast trade wind, low rainfall, and reliably sunny afternoons combine to produce some of the most predictable sailing conditions of the annual cycle.
Wind Conditions for Sailing
Average wind speeds of 12 to 18 knots from the southeast give comfortable passages on all points of sail. Northbound routes from Mahé toward Praslin and La Digue run on a reach, while the return legs downwind are relaxed and stable. Gusts above 22 knots occur in open water during the afternoon and ease as soon as the yacht enters a leeward anchorage.
Daily Sea Cycle for Departures and Anchoring
Sea conditions follow a consistent daily cycle. Mornings from sunrise until around 10 a.m. are calm, with glassy water inside sheltered bays. The wind builds from mid-morning, peaks between 2 and 5 p.m., and eases after sunset. Departures, anchoring maneuvers, and swim stops are most comfortable before midday.
Classic June Route Through the Inner Islands
The classic June route follows the leeward western flank of the archipelago. A typical four- to seven-day itinerary begins at Eden Island Marina on Mahé, then crosses to Ste. Anne Marine National Park runs northwest past Silhouette and North Island, then turns east toward Praslin's Anse Lazio and Anse Volbert, continues to La Digue's La Passe, and loops back to Mahé via the Curieuse Marine Park. The route keeps each island's sheltered side between the yacht and the prevailing wind during overnight stops.
Recommended June Anchorages
Recommended June anchorages sit on the western and northern coasts of each main island.
- Mahé — Port Launay, Beau Vallon, Baie Ternay
- Praslin — Anse Lazio, Anse Volbert, Anse Georgette
- La Digue — the protected bay north of La Passe
- Inner islands — Curieuse, St. Pierre, Round Island
Eastern anchorages such as Anse Royale on Mahé or Grand Anse on La Digue remain exposed to swell and afternoon wind throughout June and are avoided for overnight stops.
Departure Logistics from Eden Island Marina
Most yacht charters in the Seychelles depart from Eden Island Marina in Victoria, which provides customs clearance, provisioning, fuel, and fresh water within a single basin. Late-morning departures take advantage of the calm early wind and allow crews to reach the first anchorage before the afternoon breeze fully develops.
CharterClick operates its fleet from Eden Island Marina and runs itineraries tailored to the June wind and sea patterns, including day trips along Mahé's leeward coast and multi-day island-hopping routes through Praslin, La Digue, and the surrounding marine parks.
What to Pack for Seychelles in June
Pack lightweight breathable clothing for daytime, a light long-sleeve layer for evenings, strong UV protection, and quality water gear. Rain jackets are rarely needed because tropical showers pass within minutes.
Daytime Clothing
Daytime clothing should consist of loose cotton or linen shirts, shorts, lightweight trousers, and sundresses. Quick-dry synthetic fabrics perform well for active visitors who plan to move between water and shore without changing.
Evening Wear
Evening wear can include a light long-sleeve shirt or a thin sweatshirt. The trade wind cools rapidly after sunset, especially on open terraces and yacht decks, and exposed skin can feel chilly by 8 p.m. despite the warm daytime reading.
Sun Protection Gear
Sun protection gear is essential because of the extreme UV index. A wide-brim hat, UV400-rated sunglasses, SPF 50 or higher broad-spectrum sunscreen, and SPF lip balm protect skin and eyes during the 10 hours of peak radiation. Reef-safe formulations are required by Seychelles environmental regulations in marine parks.
Footwear
Footwear should cover three scenarios. Flip-flops or sandals are ideal for beach and casual walking. Closed trail shoes or lightweight hiking boots are needed for Morne Seychellois, Vallée de Mai, and rocky coastal paths. Water shoes or aquasocks protect feet on shores with coral fragments and granite boulders, such as Anse Source d'Argent.
Water Gear
Water gear improves the experience for swimmers and snorkelers. A personal mask-and-snorkel set avoids rental hygiene concerns, and a long-sleeve rash guard doubles as sun protection. Fins are optional because most inner-island reefs are close to shore.
Electronics and Adapters
Electronics require a UK Type G power adapter because the Seychelles use the three-pin 240V standard. A waterproof phone case or dry bag is useful on boat trips where afternoon spray is routine.
Small Practical Items
Small practical items include insect repellent for evening mosquitoes in wooded areas, a reusable water bottle, a compact microfiber towel, and a light daypack for hikes and island-hopping excursions.