September weather forecast
Mahé, Seychelles

A view from mount Copolia, of the scenic islands of Victoria and Eden, in Mahé, Seychelles, surrounded by clear water
A view from mount Copolia, of the scenic islands of Victoria and Eden, in Mahé, Seychelles, surrounded by clear water

Weather in September

The first month of the spring, September, is still a warm month in Mahé, Seychelles, with an average temperature varying between 26.8°C (80.2°F) and 26.1°C (79°F).

Temperature

In September, the average high-temperature is relatively the same as in August - a still warm 26.8°C (80.2°F). The average low-temperature, in Mahé, is 26.1°C (79°F).

Humidity

The months with the highest humidity in Mahé are July through September, with an average relative humidity of 80%.

Rainfall

In Mahé, in September, it is raining for 20.5 days, with typically 79mm (3.11") of accumulated precipitation. In Mahé, during the entire year, the rain falls for 241.9 days and collects up to 1432mm (56.38") of precipitation.

Sea temperature

In Mahé, the average water temperature is 27.4°C (81.3°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Mahé, the average length of the day in September is 12h and 5min.
On the first day of September, sunrise is at 06:17 and sunset at 18:18. On the last day of the month, sunrise is at 06:03 and sunset at 18:12 +04.

Sunshine

September has the least sunshine of the year, with an average of 7h of sunshine.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 7 in September transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What are the most humid months in Mahé?

July through September, with an average relative humidity of 80%, are most humid months in Mahé, Seychelles.

What is the average humidity in September in Mahé?

In September, the average relative humidity in Mahé is 80%.

How many days does it rain in September in Mahé?

In Mahé, Seychelles, in September, it is raining for 20.5 days, with typically 79mm (3.11") of accumulated precipitation.

How warm is the water in September in Mahé?

In Mahé, Seychelles, the average seawater temperature in September is 27.4°C (81.3°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in September in Mahé?

The average day length in September in Mahé is 12h and 5min.

When are sunrise and sunset in September in Mahé?

On the first day of September, sunrise is at 06:17 and sunset at 18:18. On the last day of the month, sunrise is at 06:03 and sunset at 18:12 +04.

What is the month with the least sunshine in Mahé?

The month with the least sunshine is September, with an average of 7h of sunshine.

How long on average sun shines in September in Mahé?

The average sunshine duration in September in Mahé, Seychelles, is 7h.

When is the highest UV index in Mahé?

January through December, with an average maximum UV index of 7, are months with the highest UV index.

When is the lowest UV index in Mahé?

January through December, with an average maximum UV index of 7, are months with the lowest UV index.

What is the UV index reading in September in Mahé?

In September, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.

Average temperature in September
Mahé, Seychelles

Average temperature in September - Mahé, Seychelles
  • Average high temperature in September: 26.8°C

The warmest month (with the highest average high temperature) is April (29.3°C).
The month with the lowest average high temperature is August (26.4°C).

  • Average low temperature in September: 26.1°C

The month with the highest average low temperature is April (28.1°C).
The coldest months (with the lowest average low temperature) are July and August (25.7°C).

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Average pressure in September
Mahé, Seychelles

Average pressure in September - Mahé, Seychelles
  • Average pressure in September: 1012.3mbar

The month with the highest atmospheric pressure is August (1012.4mbar).
The month with the lowest atmospheric pressure is April (1010.4mbar).

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Average wind speed in September
Mahé, Seychelles

Average wind speed in September - Mahé, Seychelles
  • Average wind speed in September: 26.2km/h

The windiest month (with the highest average wind speed) is August (28.1km/h).
The calmest month (with the lowest average wind speed) is April (12.8km/h).

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Average humidity in September
Mahé, Seychelles

Average humidity in September - Mahé, Seychelles
  • Average humidity in September: 80%

The months with the highest relative humidity are July, August and September (80%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in September
Mahé, Seychelles

Average rainfall in September - Mahé, Seychelles
  • Average rainfall in September: 79mm

The wettest month (with the highest rainfall) is January (220mm).
The driest month (with the least rainfall) is August (50mm).

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Average rainfall days in September
Mahé, Seychelles

Average rainfall days in September - Mahé, Seychelles
  • Average rainfall days in September: 20.5 days

The month with the highest number of rainy days is January (23.2 days).
The month with the least rainy days is November (17.3 days).

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Average sea temperature in September
Mahé, Seychelles

Average sea temperature in September - Mahé, Seychelles
  • Average sea temperature in September: 27.4°C

The best month for swimming (with the highest average sea temperature) is April (29.8°C).
The coldest month (with the lowest average sea temperature) is August (26.2°C).

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Average daylight in September /
Average sunshine in September
Mahé, Seychelles

Average daylight in September / Average sunshine in September - Mahé, Seychelles
  • Average daylight in September: 12h and 5min

The month with the longest days is December (Average daylight: 12h and 23min).
The month with the shortest days is June (Average daylight: 11h and 52min).

  • Average sunshine in September: 7h

The month with the most sunshine is November (Average sunshine: 10.1h).
The month with the least sunshine is September (Average sunshine: 7h).

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Average sunshine days in September
Mahé, Seychelles

Average sunshine days in September - Mahé, Seychelles
  • Average sunshine days in September: 3.8 days

The month with the most sunshine days is November (10.9 days).
The month with the least sunshine days is June (3 days).

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Average UV index in September
Mahé, Seychelles

Average UV index in September - Mahé, Seychelles
  • Average UV index in September: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

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Average cloud cover in September
Mahé, Seychelles

Average cloud cover in September - Mahé, Seychelles
  • Average cloud cover in September: 51

The month with the most cloud cover is September (Cloud cover 51).
The month with the least cloud cover is November (Cloud cover 41).

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Average visibility in September
Mahé, Seychelles

Average visibility in September - Mahé, Seychelles
  • Average visibility in September: 10km

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).

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