Seychelles Weather in October - Temperature, Rain & Sea Conditions

Sep 17, 2026

October in Seychelles brings average daytime highs of 86°F (30°C) and nighttime lows of 77°F (25°C), with sea temperatures holding near 82°F (28°C). Long-term records at the international airport on Mahé show about 191 mm of rain for the month. Praslin, La Digue, and western Mahé usually receive less, around 130 to 145 mm. The islands average about 7 hours of sunshine a day, relative humidity sits near 78%, and daylight lasts just over 12 hours.

October marks the handover between the southeast trade winds of the middle of the year and the northwest monsoon that arrives in November and December. The wind weakens through the month, the sea settles, and short showers become more frequent toward the end of October.

October Climate Overview in Seychelles

October falls in the calm gap between the two main wind seasons of Seychelles. The southeast trade winds lose strength during the month, and seas flatten along most coasts. The air stays warm and humid, and brief showers usually clear within an hour.

Seychelles weather in October at a glance

Measure	October average
Average daytime high	86°F (30°C)
Average nighttime low	77°F (25°C)
Record high	91°F (32.5°C)
Record low	69°F (20.5°C)
Sea temperature	About 82°F (28°C)
Rainfall, Mahé airport station	About 191 mm
Rainfall, Praslin, La Digue, and western Mahé	About 130 to 145 mm
Days with rain	About 11 to 14, mostly brief showers
Sunshine	About 224 hours, or 7 hours a day
Relative humidity	About 78%
Average wind speed	Falls from about 14 mph (22 km/h) to about 9 mph (15 km/h)
Daylight	12 hours 9 minutes to 12 hours 16 minutes
Sunrise and sunset	Around 6:00 AM and 6:10 PM

The temperature, rain, humidity, and sunshine figures reflect 30-year averages from 1991 to 2020, published by the World Meteorological Organization for the airport station on Mahé. Wind and daylight trends come from weather models, which show the general pattern well but blur small differences between islands.

October Weather Conditions in Detail

Each measure below shapes a different part of an October trip, from beach days and snorkeling to crossings between islands. The sections explain the numbers and what they mean on the ground.

Air Temperature

Daytime highs in October average 86°F (30°C), and nighttime lows average 77°F (25°C). Temperatures barely change through the month, since Seychelles lies close to the equator and the surrounding ocean stabilizes the air.

October runs about 1°F warmer than September and slightly cooler than April, the year's hottest month. The record October high at the airport station reached 91°F (32.5°C), and the record low fell to 69°F (20.5°C).

Humidity raises the perceived temperature. At midday, the combination of 86°F and humid air often feels like 93 to 97°F (34 to 36°C), especially in sheltered spots with little breeze.

Rainfall and Rainy Days

October rainfall depends heavily on location. The airport station on Mahé's east coast records about 191 mm on average. Modeled averages for La Digue, Silhouette, Praslin, and western and southern Mahé fall between roughly 130 and 145 mm.

That spread explains why travel websites quote anything from about 135 to 240 mm for October. Different sites draw on different weather stations, different periods of record, and in some cases computer models, so no single figure applies to every island.

Most October rain falls as short, heavy afternoon or early-evening showers. Mornings tend to stay clearer, and a typical shower passes within 15 to 45 minutes before the sun returns.

Rain becomes more frequent as the month progresses. Model data puts the chance of a wet day at about 25% in early October and close to 40% by the end of the month. This increase reflects rising humidity ahead of the northwest monsoon. Travelers who want the driest conditions should aim for the first half of October.

Sea Temperature and Underwater Visibility

The sea around the inner islands holds close to 82°F (28°C) throughout October, warm enough for long swims and snorkeling sessions without a wetsuit. Shallow lagoons and protected bays can run a degree or two warmer during calm afternoons.

Underwater visibility ranks among the best of the year once the trade winds fade. With less wind to stir up sediment, clear days at popular reefs commonly bring visibility of 20 to 30 meters. Calm surface conditions also make entry and exit easier at boat-only sites.

Seaweed that collects on some exposed beaches during the windy months usually thins out as the trade winds weaken, improving swimming on southern and eastern shores.

Wind and Sea State

Average wind speed drops sharply during October, from about 14 mph (22 km/h) at the start of the month to about 9 mph (15 km/h) by the end. The wind still blows mainly from the south and southeast in early October, then turns lighter and more variable.

Seas respond quickly to the change. The moderate swell that affects east-facing coasts in August and September eases. As a result, both sides of Mahé, Praslin, and La Digue offer calm swimming for much of the month. Crossings between the inner islands become smoother, which matters for ferry passengers and boat trips alike.

Sunshine, Humidity, and Daylight

October delivers about 224 hours of sunshine at the airport station, or a little over 7 hours a day, one of the higher totals of the year. Cloud cover builds slowly through the month, and afternoons carry more cloud than mornings.

Relative humidity averages about 78%, with a dew point near 74°F (23°C), so the air feels muggy day and night. Sea breezes on the coast make the humidity easier to handle than in the forested interior.

Daylight lasts 12 hours 9 minutes on October 1 and 12 hours 16 minutes on October 31. Sunrise moves from about 6:02 AM to 5:52 AM, and sunset stays close to 6:10 PM. The UV index reaches extreme levels of 11 or higher around midday, even under thin cloud.

October Weather by Island

The main islands share the same October pattern of warm air, calm seas, and brief showers. Rainfall and exposure vary with terrain, and those differences matter when choosing where to stay or spend a day on the water.

Mahé receives the most rain because its granite mountains, rising above 900 meters, force moist air upward. The east coast and the central highlands collect the highest totals, while the west coast around Beau Vallon and Port Launay usually stays drier and sunnier.

Praslin and La Digue sit lower and receive less rain, with modeled October averages close to 130 to 140 mm. Calm seas make the ferry crossing between the two islands and the boat ride from Mahé noticeably more comfortable than in the windy months.

The outer islands, including the Amirantes and the atolls farther south, lie far from the granite peaks of the inner group. They generally record less rain than Mahé in October, and the lighter winds of the transition season improve conditions for the long passages needed to reach them.

October weather by island in Seychelles

Island or area	October rainfall	Sea conditions	Notes
Mahé, east coast and highlands	About 190 mm at the airport station	Calm to slight	Wettest area of the inner islands
Mahé, west and south coasts	About 130 to 145 mm	Calm	Drier, sunnier beaches such as Beau Vallon
Praslin	About 130 to 140 mm	Calm	Smooth crossings to La Digue and Curieuse
La Digue	About 135 mm	Calm	Good swimming on both coasts
Outer islands	Generally lower than Mahé	Calm to slight	Lighter winds favor long passages

How October Compares to September and November

October sits between the breezy close of the trade wind season in September and the wetter, more humid start of the northwest monsoon in November. The three months share almost identical temperatures, and their differences lie in wind, rain, and sunshine.

September, October, and November weather in Seychelles

Measure	September	October	November
Average high	85°F (29.4°C)	86°F (30.1°C)	87°F (30.4°C)
Average low	76°F (24.7°C)	77°F (24.9°C)	76°F (24.7°C)
Rainfall, Mahé airport station	About 184 mm	About 191 mm	About 215 mm
Sunshine per month	About 210 hours	About 224 hours	About 203 hours
Relative humidity	About 79%	About 78%	About 79%
Sea temperature	About 81°F (27°C)	About 82°F (28°C)	About 82°F (28°C)
Wind	Moderate southeast trades	Weakening, light by month's end	Light and variable

October collects the most sunshine of the three months and a rainfall total between the other two. September suits travelers who like a steady breeze and sailing wind, while November brings flat seas with a higher chance of rain. For calm water combined with long sunny spells, October offers the best balance of the three.

Is October a Good Time to Visit Seychelles

October ranks among the best months to visit Seychelles, together with April, because both months fall in the calm transition between the two wind seasons. Warm air, warm water, clear reefs, and settled seas come together in a way that few other months match.

The main advantages of an October trip fall into four areas.

• Calm seas on most coastlines and smoother crossings between islands
• Some of the clearest underwater visibility of the year for snorkeling and diving
• Stable heat of about 86°F without the peak temperatures of April
• Lower demand than the December holidays and the July and August school break

Demand also works in October's favor. Peak weeks from December to March and in July and August often need booking two to three months ahead, while October usually leaves a wider choice of accommodation and yachts.

The trade-offs stay modest. Showers become more frequent in the second half of the month, humidity remains high, and the east coast of Mahé collects noticeably more rain than the other islands.

October suits divers and snorkelers chasing visibility, families who want calm swimming beaches, and couples looking for quiet bays. It also suits yacht guests who prefer flat water over strong sailing wind. Travelers who want the lowest possible chance of rain should consider late June to August instead, accepting stronger wind in return. The year-round climate guide compares every month in more detail.

Things to Do in Seychelles in October

October weather supports almost every activity the islands offer, on the water and on land. Several seasonal events and wildlife moments also fall in this month.

Snorkeling and Diving

Calm water and high visibility make October one of the strongest months for snorkeling and diving. Sainte Anne Marine National Park off Victoria, the reefs around Île Cocos near La Digue, and the waters of Curieuse off Praslin all look their best in flat water. Boat-only sites also become easier to reach.

Whale Sharks and Nesting Turtles

Whale sharks visit the inner islands between about August and November. October falls inside that season, although no trip can guarantee a sighting. The hawksbill turtle nesting season also gathers pace in October. Females come ashore during the day on beaches such as Cousin and Curieuse, and nesting activity peaks in November and December.

Festival Kreol

Festival Kreol, the national celebration of Creole culture, has taken place every October since 1985, with its main events in the last week of the month. The 2026 edition marks the 41st festival, with music, dance, and food stalls across Mahé, Praslin, and La Digue. Highlights include Dimans Kreol, a Sunday beach picnic, and the all-night bal bobes dance that closes the festival.

Fishing and Hiking

Calmer seas from October make offshore fishing trips more comfortable. Anglers target sailfish, yellowfin tuna, and wahoo during the transition months. On land, the trails of Morne Seychellois National Park on Mahé and the Vallée de Mai on Praslin stay pleasant in the early morning. Midday heat and afternoon showers make later starts less comfortable.

Sailing and Yacht Charters in Seychelles in October

October offers some of the most comfortable conditions of the year for yacht charters in Seychelles. Light winds and settled seas allow relaxed passages between islands and calm anchorages on both leeward and windward coasts.

The crossing between Mahé and Praslin, about 45 kilometers of open water, becomes noticeably smoother than in July or August. Once there, Praslin, La Digue, Curieuse, and Île Cocos sit within a few kilometers of each other. Short hops then fill the day with snorkeling stops instead of long transits.

Mornings provide the most reliable window. The sea tends to be at its flattest before midday, and the brief showers of October usually arrive in the afternoon. An early departure and a return by mid-afternoon therefore suit the month well.

Seasonal wildlife adds another reason to be on the water. Whale sharks pass through the inner islands between about August and November. Hawksbill turtles come ashore to nest in daylight on Cousin and Curieuse, both reachable by boat from Praslin.

Several charter formats work in October. Half-day trips around the bays of Mahé and into Sainte Anne Marine National Park stay calm enough for families with young children. Full-day trips reach Praslin, Curieuse, and Île Cocos, and multi-day charters can combine the inner islands with overnight anchorages that would feel exposed during the trade wind months.

CharterClick operates crewed motor yachts and catamarans from Eden Island Marina on Mahé for half-day, full-day, and multi-day charters. Catamarans suit October particularly well, since their stable decks and shallow draft make the most of calm anchorages close to shore.

Rain rarely disrupts an October charter for long, although crews watch the afternoon sky. When a shower approaches, most yachts simply wait at anchor for 20 or 30 minutes. CharterClick crews can also shift the route toward the sunnier west coast of Mahé when the east side clouds over.

Seychelles Weather in October FAQ

The answers below cover the questions travelers ask most often about October weather in Seychelles.

What to Pack for October in Seychelles

Pack for October for steady heat, high humidity, extreme UV, and short afternoon showers.

• Light, breathable clothing in linen or cotton, plus swimwear for daily use
• Reef-safe sunscreen with SPF 50 or higher, a wide-brimmed hat, and UV-rated sunglasses
• A compact rain jacket or travel umbrella for passing showers
• Water shoes and a dry bag for boat landings and snorkeling trips
• Insect repellent for forest trails and evenings
• A light long-sleeved layer for air-conditioned rooms and evenings on the water

Quick-drying fabrics handle both humidity and rain better than heavy cotton. Hikers should add shoes with good grip, since trails in the granite hills turn slippery after a shower.