September weather forecast and climate
Grand Baie, Mauritius

September, the first month of the spring, in Grand Baie, is still a warm month, with average temperature ranging between max 26°C (78.8°F) and min 17°C (62.6°F).

Temperature

In Grand Baie, in September, the average high-temperature is 26°C (78.8°F), and the average low-temperature is 17°C (62.6°F).

Rainfall

In Grand Baie, Mauritius, during September, the rain falls for 12 days and regularly aggregates up to 54mm (2.1") of precipitation. In Grand Baie, during the entire year, the rain falls for 177 days and collects up to 1510mm (59.4") of precipitation.

Sea temperature

September is the month with the coldest seawater, with an average sea temperature of 23.4°C (74.1°F). For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 23.4°C (74.1°F).

Daylight

The average length of the day in September is 12h.

Sunshine

Months with the least sunshine are March through September, with an average of 7h of sunshine.

UV index

In Grand Baie, the average daily maximum UV index in September is 10. A UV Index of 8 to 10 symbolizes a very high health vulnerability from the exposure to the Sun's UV radiation for the average person.
The daily maximum UV index of 10 interpret into the following advice:
Take special precautions, as unprotected skin can be damaged and can burn quickly. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Prolonged stay under the direct sun should be avoided as much as possible, especially if a person burns easily. Sunscreen with a minimum 30 sun protection factor should always be used. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in September in Grand Baie?

In September, in Grand Baie, Mauritius, the average high-temperature is 26°C (78.8°F), and the average low-temperature is 17°C (62.6°F).

How much does it rain in Grand Baie in September?

In September, in Grand Baie, the rain falls for 12 days. Throughout September, 54mm (2.1") of precipitation is accumulated.

What is the month with the coldest sea water in Grand Baie?

With an average sea temperature of 23.4°C (74.1°F), September is the month with the coldest seawater in Grand Baie, Mauritius. For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 23.4°C (74.1°F).

How warm is the water in September in Grand Baie?

In September, the average sea temperature is 23.4°C (74.1°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 23.4°C (74.1°F) water may be enjoyable.

How many hours of daylight does Grand Baie have in September?

The average length of the day in September in Grand Baie is 12h.

What is the month with the least sunshine in Grand Baie?

Months with the least sunshine in Grand Baie are March through September, with an average of 7h of sunshine.

How many hours of sunshine does Grand Baie have in September?

In September, the average sunshine in Grand Baie, Mauritius, is 7h.

What is the UV index reading in September in Grand Baie?

The average daily maximum UV index in September in Grand Baie is 10. A UV Index reading of 8 to 10 represents a very high health risk from the exposure to the Sun's UV radiation.
Average temperature in September - Grand Baie, Mauritius
  • Average high temperature in September: 26°C

Warmest months (with the highest average high temperature) are January, February and March (30°C).
Months with the lowest average high temperature are June, July and August (25°C).

  • Average low temperature in September: 17°C

Months with the highest average low temperature are January, February and March (22°C).
The coldest month (with the lowest average low temperature) is August (16°C).

Average rainfall in September - Grand Baie, Mauritius
  • Average rainfall in September: 54mm

The wettest month (with the highest rainfall) is February (242mm).
The driest month (with the lowest rainfall) is October (50mm).

Average rainfall days in September - Grand Baie, Mauritius
  • Average rainfall days in September: 12 days

Months with the highest number of rainy days are January, February and March (17 days).
Months with the lowest number of rainy days are September and November (12 days).

Average sea temperature in September - Grand Baie, Mauritius
  • Average sea temperature in September: 23.4°C

The best month for swimming (with the highest average sea temperature) is March (28.5°C).
The coldest month (with the lowest average sea temperature) is September (23.4°C).

Average daylight in September / Average sunshine in September - Grand Baie, Mauritius
  • Average daylight in September: 12h

The month with the longest days is December (Average daylight: 13.3h).
The month with shortest days is June (Average daylight: 10.9h).

  • Average sunshine in September: 7h

Months with most sunshine are January, February, October, November and December (Average sunshine: 8h).
Months with least sunshine are March, April, May, June, July, August and September (Average sunshine: 7).

Average UV index in September - Grand Baie, Mauritius
  • Average UV index in September: 10

Months with the highest UV index are January, February, March, October, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 6).

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