Is the weather good in Seychelles in September 2025?
OK Weather
Warm
🌧️
Rainy
For the past few decades, the average daily temperatures in Seychelles during September have been around +73°F.
In Seychelles the temperature rarely varies more than seven degrees between the different parts with the highest temperature +73°F in Mahe Island to +73°F in Mahe Island. So you should be able to pack for similar conditions wherever you go in the country.
Temperature, wind and humidity in September
Average
Mahe Island
☀️
+73°F
Avg. max. temperature
+66°F
Min.
+81°F
Max.
110 mm
Total precipitation
79%
Avg. humidity
5 m/s
Avg. wind
1 ☀️
Sunny Days
5 ⛅️
Cloudy
23 🌦
Rainy
Our opinion: Seychelles has OK weather in September.
Seychelles in September – what city is the…
rainiest? Mahe Island, with an average of 4 mm of rain and humidity of 79%;
warmest? Mahe Island, with daytime temperatures averaging +73°F;
windiest? Mahe Island, with an average of 5 m/s;
coolest? Mahe Island, with daytime temperatures averaging +73°F;
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How good is the weather in Seychelles in September?
During September, the Seychelles is characterized by variable weather with air pressure around 1010 HPa and therefore elements of sun, rain, and wind – with a little extra emphasis on the latter two. The humidity in September ranges between 79% in Mahe Island and 79% in Mahe Island.
Variable weather with sun, rain and wind: +73°F in average daily temperature.
This is how hot it usually is in September
The average daily temperatures above don't tell you everything about how hot it can be in Seychelles. For example, cold nights can make a big difference for those staying in tents or unheated houses. Extra hot days, on the other hand, can make a big difference for those who plan to engage in demanding physical training or competition. So here are some more temperatures for September:
Average
Mahe Island
Average maximum temperature for the month: +73°F;
Average minimum temperature for the month: +72°F;
Highest monthly temperature: +75°F;
Lowest monthly temperature: +70°F;
Monthly temperatures:
Average
Mahe Island
Warmest: March with an average +77°F during the day;
Coldest: June with an average +73°F of the day;
Hottest month in hottest city: March in Mahe Island;
Coldest month in coolest city: June in Mahe Island;
Can you swim in Seychelles in September?
Here are the minimum and maximum water temperatures in cities in Seychelles in September:
Mahe Island
👙
Warm
80°F - 84°F
You can definitely swim in Mahe Island in September, with the water temperature of +80°F and up.
Winds in Seychelles during September
Wind speed in Seychelles in September based on historical data:
Average
Mahe Island
September tends to offer moderate winds averaging 5 m/s. However, coastal cities may experience extra breeze during mornings and afternoons.
Comparison between cities in September:
Highest average wind speed: Mahe Island with 3 m/s;
Lowest average wind speed: Mahe Island with 3 m/s;
Windiest day of the month: Mahe Island with 6 m/s;
The least windy day of the month: Mahe Island with 4 m/s;
Humidity and precipitation in Seychelles in September
Amount of rainfall in mm during September in Seychelles based on historical data:
Average
Mahe Island
September tends to be an extremely humid month with 79% humidity and 119 mm rainfall. In general the humidity tends to be a little lower in mountainous regions and more humid closer to water.
Comparison between cities in September:
Average
Mahe Island
Highest average rainfall: Mahe Island with 110 mm;
Lowest average rainfall: Mahe Island with 110 mm;
Most number of rainy days: Mahe Island with 23 rainy days;
Least number of rainy days: Mahe Island with 23 rainy days;
Highest risk of rain during the day: Mahe Island with 77%;
Least risk of rain during the day: Mahe Island with 77%;
Highest average humidity: Mahe Island with 79%;
Lowest average humidity: Mahe Island with 79%;
Tips for traveling to Seychelles in September
Looking for some tips for traveling to the sun, snow, or whatever you're aiming for Seychelles? Activities, weather, and clothing are closely linked. In addition, it's important to pack only what you really need so you don't have to worry about heavy packing or paying extra baggage fees.
Here is some advice on what to pack and what kind of activities you can do in the Seychelles based on the weather that September is expected to bring. The advice applies to the country as a whole – local weather and possible activities may differ somewhat.
rainy, warm weather with light winds and very high humidity in September
Pack right for September
The weather makes a difference when it comes to packing - especially which items should go in your suitcase. The tips below are designed to help you pack light and right without carrying more than necessary.
For light showers, an umbrella or a thin and light rain cape is usually sufficient, while more rain may require rainwear and rain boots.
Warm - neither hot nor cool, are probably the most comfortable when you think of sunbathing. Shorts, shorter skirts or dresses, tank tops and t-shirts are the basics here. If you're going to a seaside resort, don't forget your swimwear and maybe even a snorkel, mask and flippers.
Light winds are probably most comfortable in hot weather but is cooling in cool and cold weather. If it is hot (when the air temperature is about 30 degrees), the wind can have a warming effect. A thin, windproof jacket and long trousers help to counteract these effects.
High humidity means that the air conducts heat to and from the skin more easily. For example, if the air is hot (above skin temperature), it will be harder to stay cool. On the other hand, if the air is cool or cold, it is more difficult to stay warm. In high humidity, the choice of clothing makes less of a difference. However, your physical activity plays a bigger role.
FAQ
Frequently asked questions about the weather in Seychelles in September:
What can you do outside when it's warm in Seychelles?
Bathing and sunbathing can be suitable. Warm (but not hot) days are also good for activities that are not so physically demanding: sightseeing on foot, by boat, on a scooter, camel riding. You can also exercise easily as long as you make sure to cool down and quench thirst.
Is September a good time to visit Seychelles?
It’s always a good time to visit Seychelles, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
For this page, we’ve looked at the typical weather in Seychelles, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.