Reunion weather in September 2025
Reunion weather in September 2025
Day
25 °C
Night
19 °C
Sea
23 °C
Precipitation
61 mm
in month
Rainy days
8 days
in month
Daylight
12 hours
average
Sunshine
6 hours
average
Humidity
79 %
Day
25 °C
Night
19 °C
Sea
23 °C
Precipitation
61 mm
in month
Rainy days
8 days
in month
Daylight
12 hours
average
Sunshine
6 hours
average
Humidity
79 %
Overview: ReunionRéunion is a French overseas department located in the Indian Ocean, east of Madagascar. This island offers breathtaking natural beauty with its rugged mountains, lush rainforests, and stunning waterfalls. Adventure seekers can also indulge in activities like canyoning and paragliding. Relax in Saint-Gilles les Bains known for its stunning beaches, crystal-clear waters, and vibrant seaside atmosphere.
Travel information
Flights
to
Activities
in Reunion Island
Weather charts for Reunion
Data backed by 40 years of history
We make the most from 40 years of historical weather data to predict the best weather conditions.
Selection of world's favourite destinations
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
16 500 000 weather records
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.
Find more destinations like this
Activities in Reunion
Flights to Reunion
Destinations in Reunion
Destinations with similar weather to Reunion
Weather overview and FAQs
Weather overview
In September in Reunion, the average air temperature ranges from 25 °C (76 °F) during the day to 19 °C (66 °F) at night. There are 8 days of rain on average, where the rainfall is 61 mm (2.39 in).
Are there good conditions to visit in September in Reunion?
There are good conditions for visiting in Reunion in September. The daily temperatures in this month reach pleasant 25 °C (76 °F). The seawater temperature reaches ideal 23 °C (74 °F). At night, temperatures hover around a pleasant 19 °C (66 °F). You can expect just 8 days of rain during the month, taking an umbrella is not necessary.
What is the sea temperature in September in Reunion?
The temperature of the sea in Reunion in September is 23 °C (74 °F). This warm sea is nice for swimming, maybe cold for some, but most people can spend a long time in it.
What temperature can I expect during the day in Reunion in September?
In Reunion in September, the average daily temperatures will be 25 °C (76 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.
How many days of precipitation on average can I expect in Reunion in September?
In September in Reunion, we can expect 8 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 1.9 days of the week, or in general - 28 % days.
What is the air temperature in September in Reunion at night?
The average night temperature in Reunion in September is 19 °C (66 °F). This temperature is pleasant for a wide range of evening, night, and morning activities from sports to sitting outside in restaurants or evening walks.
What is the humidity in September in Reunion?
Humidity in Reunion in September is 79 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.
What is the rainfall intensity in Reunion in September?
There is precipitation of 61 mm (2.39 in) in Reunion in September, which means 2 mm (0.08 in) rainfall per day on average.
How many sunny hours can I expect in Reunion in September?
In Reunion in September, you can expect around 6 hours of sunshine.
How long is the day (from dawn till dusk) in Reunion in September?
The length of daylight in Reunion in September is 12 hours.
Is it hot in September in Reunion?
In September in Reunion, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
How windy is Reunion in September?
In Reunion in September, there will be an average wind scale of 6.
Is Reunion rainier in September than in October?
Yes, in September in Reunion it rains more than in October.
Is the weather in Reunion warmer in September than in October?
No, in Reunion in September the temperature is not higher than in October.
Is the sea in Reunion warmer in September than in August?
No, the sea temperature in Reunion in September is not higher than in August.