September weather forecast
Rivière du Rempart, Mauritius

September

Weather in September

As the end of the year draws near, September brings warmer days with a slight rise in temperature. The city observes the least rainfall of the year at 8mm (0.31"), making September the dryest month. This month also welcomes an increase in daily sunshine hours, providing bright and clear tourist-friendly days. Wind patterns are less intense, reflecting the return of warmer conditions.

Temperature

The average high-temperature during September is a still moderately hot 23.7°C (74.7°F), almost matching the conditions of the preceding month. Rivière du Rempart nights in September witness a mild cool down to an average temperature of 21.6°C (70.9°F).

Humidity

August and September, with an average relative humidity of 73%, are the least humid months.

Rainfall

The month with the least rainfall is September, when the rain falls for 10 days and typically collects 8mm (0.31") of precipitation.

Sea temperature

September is the month with the coldest seawater, with an average sea temperature of 23.4°C (74.1°F).
Note: Factor in your tolerance to cold, the sunshine, the wind, and the air's warmth, and a swim in 23.4°C (74.1°F) might be tempting. It is interesting to note that Olympians compete in 25°C (77°F) to 28°C (82.4°F) water temperatures.

Daylight

In Rivière du Rempart, the average length of the day in September is 11h and 59min.
On the first day of the month, sunrise is at 06:17 and sunset at 18:00. On the last day of September, sunrise is at 05:51 and sunset at 18:07 +04.

Sunshine

In Rivière du Rempart, the average sunshine in September is 9.2h.

UV index

May through November, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 6 during September translates into the following directions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take note! Sand and water reflections strengthen the Sun's UV exposure.

Frequently asked questions

What is the average September temperature?
In September, in Rivière du Rempart, the average high-temperature is 23.7°C (74.7°F), and the average low-temperature is 21.6°C (70.9°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in April is calculated to be 31°C (87.8°F).
What is the least humid month?
August and September, with an average relative humidity of 73%, are the least humid months.
What is the average humidity in September?
In September, the average relative humidity is 73%.
What is the driest month?
The month with the least rainfall in Rivière du Rempart is September, when the rain falls for 10 days and typically collects 8mm (0.31") of precipitation.
How much does it rain in September?
In Rivière du Rempart, during September, the rain falls for 10 days and regularly aggregates up to 8mm (0.31") of precipitation.
What month is the sea coldest in Rivière du Rempart?
The month with the coldest seawater is September, with an average sea temperature of 23.4°C (74.1°F).
What is the sea temperature in September?
In September, the average sea temperature is 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).
How many hours of daylight does Rivière du Rempart have in September?
The average day length in September is 11h and 59min.
When is the sunrise / sunset in September?
On the first day of September, sunrise is at 06:17 and sunset at 18:00. On the last day of the month, sunrise is at 05:51 and sunset at 18:07 +04.
How many hours of sunshine does Rivière du Rempart have in September?
In September, the average sunshine duration is 9.2h.
What are the months with the lowest UV index?
May through November, with an average maximum UV index of 6, are months with the lowest UV index.
What is the UV index reading in September?
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Rivière du Rempart, Mauritius
Average temperature in September
Rivière du Rempart, Mauritius
  • Average high temperature in September: 23.7°C

The warmest month (with the highest average high temperature) is February (28.6°C).
The month with the lowest average high temperature is August (23.5°C).

  • Average low temperature in September: 21.6°C

The month with the highest average low temperature is February (26°C).
The coldest month (with the lowest average low temperature) is August (21.3°C).

Average pressure in September - Rivière du Rempart, Mauritius
Average pressure in September
Rivière du Rempart, Mauritius
  • Average pressure in September: 1020.5mbar

The month with the highest atmospheric pressure is August (1021mbar).
The month with the lowest atmospheric pressure is February (1011.1mbar).

Average wind speed in September - Rivière du Rempart, Mauritius
Average wind speed in September
Rivière du Rempart, Mauritius
  • Average wind speed in September: 22.1km/h

The windiest month (with the highest average wind speed) is August (23.6km/h).
The calmest month (with the lowest average wind speed) is November (17.1km/h).

Average humidity in September - Rivière du Rempart, Mauritius
Average humidity in September
Rivière du Rempart, Mauritius
  • Average humidity in September: 73%

The months with the highest relative humidity are January, February and March (78%).
The months with the lowest relative humidity are August and September (73%).

Average rainfall in September - Rivière du Rempart, Mauritius
Average rainfall in September
Rivière du Rempart, Mauritius
  • Average rainfall in September: 8mm

The wettest month (with the highest rainfall) is January (97mm).
The driest month (with the least rainfall) is September (8mm).

Average rainfall days in September - Rivière du Rempart, Mauritius
Average rainfall days in September
Rivière du Rempart, Mauritius
  • Average rainfall days in September: 10 days

The month with the highest number of rainy days is March (20.8 days).
The months with the least rainy days are October and November (9.5 days).

Average sea temperature in September - Rivière du Rempart, Mauritius
Average sea temperature in September
Rivière du Rempart, 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 - Rivière du Rempart, Mauritius
Average daylight in September /
Average sunshine in September
Rivière du Rempart, Mauritius
  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 10h and 54min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is October (Average sunshine: 10h and 24min).
The month with the least sunshine is July (Average sunshine: 6h and 18min).

Average sunshine days in September - Rivière du Rempart, Mauritius
Average sunshine days in September
Rivière du Rempart, Mauritius
  • Average sunshine days in September: 13.1 days

The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is February (5.2 days).

Average UV index in September - Rivière du Rempart, Mauritius
Average UV index in September
Rivière du Rempart, Mauritius
  • Average UV index in September: 6

The months with the highest UV index are January, February, March, April and December (UV index 7).
The months with the lowest UV index are May, June, July, August, September, October and November (UV index 6).

Average cloud cover in September - Rivière du Rempart, Mauritius
Average cloud cover in September
Rivière du Rempart, Mauritius
  • Average cloud cover in September: 36

The months with the most cloud cover are January and March (Cloud cover 44).
The month with the least cloud cover is May (Cloud cover 35).

Average visibility in September - Rivière du Rempart, Mauritius
Average visibility in September
Rivière du Rempart, Mauritius
  • Average visibility in September: 10km

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

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