Mahé, the largest island of Seychelles, boasts a tropical climate with warm temperatures, high humidity, and abundant sunshine year-round. The island experiences little temperature variation, with daily highs between 27–31°C and balmy nights. Distinct wet and dry seasons, influenced by trade winds, shape Mahé’s inviting weather, making it a premier destination for beach lovers and outdoor adventurers.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
Mahé enjoys a classic tropical climate, marked by consistently warm temperatures and high humidity throughout the year. Daytime highs typically range from 27°C in July and August to 30–31°C in March and April, while nighttime lows hover around 23–25°C. The Indian Ocean remains warm year-round, with sea temperatures between 26–30°C, perfect for swimming and water sports. Humidity is high, often 78–84%, but cooling sea breezes and trade winds provide relief, especially from May to September.
The island’s year is divided into two main seasons, dictated by the trade winds. The northwest monsoon (December to March) brings warmer, more humid conditions and the heaviest rainfall, peaking in December and January. Showers are typically intense but brief, with sunshine returning quickly. April and November are the hottest, calmest months, ideal for diving and snorkelling due to excellent underwater visibility. The southeast trade winds (May to October) usher in drier, cooler weather, steady breezes, and lower humidity, making this period ideal for hiking, sailing, and windsurfing. Rainfall is lowest from June to August, though occasional showers can occur. Mahé enjoys 5–8 hours of sunshine daily, with daylight lasting about 12 hours year-round.
Despite some seasonal variation, Mahé’s climate is reliably warm and inviting, supporting lush tropical vegetation and vibrant marine life. The island’s weather is ideal for year-round travel, with each season offering unique experiences for visitors.
| Average climate data for Mahé, Seychelles | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 28 | 28 | 29 | 29 | 29 | 27 | 26 | 27 | 27 | 28 | 28 | 28 | 29 |
| Average minimum temperature (°C) | 27 | 27 | 28 | 28 | 28 | 27 | 26 | 26 | 26 | 27 | 27 | 27 | 26 |
| Average precipitation (mm) | 219 | 128 | 109 | 113 | 170 | 75 | 61 | 50 | 79 | 135 | 127 | 164 | 1,430 |
| Average rainfall days (days) | 23 | 19 | 21 | 21 | 22 | 22 | 19 | 18 | 21 | 18 | 17 | 22 | 242 |
| Average relative humidity (%) | 77 | 75 | 73 | 72 | 75 | 79 | 80 | 79 | 80 | 79 | 76 | 77 | 77 |
| Average wind speed (km/h) | 18 | 17 | 14 | 13 | 19 | 24 | 26 | 28 | 26 | 18 | 14 | 17 | 20 |
| Average water temperature (°C) | 28 | 28 | 29 | 30 | 29 | 27 | 26 | 26 | 28 | 28 | 28 | 28 | 28 |
| Average daily daylight hours (h) | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 |
| Average daily sunshine hours (h) | 7 | 7 | 7 | 8 | 7 | 7 | 7 | 7 | 7 | 9 | 10 | 8 | 8 |
| Average cloud coverage (%) | 45 | 45 | 44 | 42 | 43 | 45 | 49 | 49 | 51 | 46 | 40 | 44 | 45 |
| Average UV index | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
The best time to visit Mahé is April, May, October, and November, when winds are light, rainfall is moderate, and temperatures are at their warmest. These months offer the best conditions for snorkelling, diving, and enjoying tranquil beaches, with excellent underwater visibility and fewer crowds than peak holiday periods.
The least favourable time to visit Mahé is December and January, when the island experiences its heaviest rainfall and highest humidity. While showers are usually brief, they can be intense and may disrupt outdoor plans. However, temperatures remain warm, and sunny intervals are still common between downpours.
Mahé has a tropical climate with little temperature variation. Highs range from 27–31°C year-round, and nights are warm. Humidity is high, and rainfall peaks in December and January, while June to August is drier and breezier.
April, May, October, and November are best for beach holidays, with warm, calm seas, excellent underwater visibility, and moderate rainfall. June to August is also popular for sunbathing, but trade winds can make the sea choppier.
Rain falls year-round, but December and January are the wettest months, with frequent heavy showers. June to August is the driest period, with only occasional rain. Showers are usually brief, and sunshine returns quickly.
The Indian Ocean around Mahé is warm all year, with sea temperatures between 26–30°C. This makes it ideal for swimming, snorkelling, and water sports in any season.
Yes, the southeast trade winds from May to October bring steady breezes and cooler, drier weather. These winds are ideal for sailing and windsurfing but can make the sea rougher on exposed beaches.
Pack light, breathable clothing, swimwear, strong sun protection, and a rain jacket. For May–October, add a light jumper for breezy evenings. Reef-safe sun cream is recommended for water activities.
Yes, Mahé remains warm and inviting even during the rainy season. Showers are intense but usually short, and sunny intervals are common. The lush landscapes and fewer crowds make it appealing for many travellers.
The warmest month, with the highest average maximum temperature, is April (29.3 °C). The month with the lowest average maximum temperature is July (26.4 °C). Overall, the average maximum temperature over the whole year is 27.8 °C.
The month with the highest average minimum temperature is April (28.2 °C). The coldest month, with the lowest average minimum temperature, is August (25.6 °C). Overall, the average minimum temperature over the whole year is 27 °C.
The month with the highest average water temperature is April (29.8 °C). The month with the lowest average water temperature is July (26.2 °C). Overall, the average water temperature over the whole year is 28.1 °C.
The wettest month, with the highest amount of precipitation, is January (219 mm). The driest month, with the least amount of precipitation, is August (50.5 mm). Over the whole year there are 1,429.7 mm of rainfall on average.
The month with the most days of rain is January (23.2 days). The month with the fewest days of rain is November (17.3 days). Over the whole year there are 241.8 days of rain on average.
The month with the highest average relative humidity is July (80.3 %). The month with the lowest average relative humidity is April (72.1 %). The overall average relative humidity over the whole year is 77 %.
The windiest month, with the highest average wind speed, is August (28.1 km/h). The calmest month, with the lowest average wind speed, is April (13 km/h). The overall average wind speed over the whole year is 19.6 km/h.
The month with the cloudiest skies, so the highest cloud coverage, is September (50.8 %). The month with the clearest skies, so the lowest cloud coverage, is November (40.3 %). Over the whole year there is an average cloud coverage of 45.2 %.
The months with the longest days, so the most daylight, are January, February, November and December (Average daylight: 12 h). The months with the shortest days, so the least daylight, are May, June and July (Average daylight: 11.1 h). Over the whole year there are 11.8 h of daylight per day on average.
The month with the most sunshine per day is November (Average sunshine: 10 h). The month with the least sunshine per day is July (Average sunshine: 6.9 h). Over the whole year there are 7.6 h of sunlight per day on average.
Over the whole year the average UV index is 7.
