September weather forecast
Union Vale, Mauritius

September

Weather in September

September, the first month of the spring in Union Vale, is a warm month, with an average temperature ranging between max 23.2°C (73.8°F) and min 21.6°C (70.9°F).

Temperature

With September's arrival, Union Vale's weather records an average high-temperature of a warm 23.2°C (73.8°F), marking little difference from August's 22.9°C (73.2°F). September nights witness a mild cool down to an average low of 21.6°C (70.9°F).

Humidity

July through September, with an average relative humidity of 74%, are the least humid months in Union Vale, Mauritius.

Rainfall

September is the month with the least rainfall in Union Vale. Rain falls for 12.8 days and accumulates 14mm (0.55") of precipitation.

Daylight

In Union Vale, 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 Union Vale, the average sunshine in September is 9.1h.

UV index

May through November, with an average maximum UV index of 6, are months with the lowest UV index in Union Vale. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum UV index of 6 in September translates into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Frequently asked questions

What is the usual temperature for Union Vale in September?
In September, the average high-temperature and low-temperature in Union Vale, Mauritius, are 23.2°C (73.8°F) and 21.6°C (70.9°F) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in April is estimated at 30°C (86°F).
What are the least humid months in Union Vale?
July through September, with an average relative humidity of 74%, are the least humid months in Union Vale, Mauritius.
What is the average humidity in September in Union Vale?
The average relative humidity in September in Union Vale is 74%.
What is the driest month in Union Vale?
The month with the least rainfall in Union Vale, Mauritius, is September, when the rain falls for 12.8 days and typically collects 14mm (0.55") of precipitation.
How much does it rain in Union Vale in September?
In Union Vale, Mauritius, during September, the rain falls for 12.8 days and regularly aggregates up to 14mm (0.55") of precipitation.
How many hours of daylight does Union Vale have in September?
In Union Vale, the average day length in September is 11h and 59min.
When is the sunrise / sunset in September in Union Vale?
In September, on the first day of the month, sunrise is at 06:17 and sunset at 18:00. On the last day of the month, in Union Vale, sunrise is at 05:51 and sunset at 18:07 +04.
How long on average sun shines in September in Union Vale?
In September, the average sunshine duration in Union Vale is 9.1h.
When is the lowest UV index in Union Vale?
The months with the lowest UV index are May through November, with an average maximum UV index of 6.
What is the UV index reading in September in Union Vale?
In Union Vale, Mauritius, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Union Vale, Mauritius
  • Average high temperature in September: 23.2°C

The warmest month (with the highest average high temperature) is February (28.2°C).
The month with the lowest average high temperature is August (22.9°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
Union Vale, Mauritius
  • Average pressure in September: 1020.6mbar

The month with the highest atmospheric pressure is August (1021.2mbar).
The month with the lowest atmospheric pressure is February (1011.2mbar).

Average wind speed in September
Union Vale, Mauritius
  • Average wind speed in September: 22.7km/h

The windiest month (with the highest average wind speed) is August (24.3km/h).
The calmest month (with the lowest average wind speed) is November (17.7km/h).

Average humidity in September
Union Vale, Mauritius
  • Average humidity in September: 74%

The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are July, August and September (74%).

Average rainfall in September
Union Vale, Mauritius
  • Average rainfall in September: 14mm

The wettest month (with the highest rainfall) is February (105mm).
The driest month (with the least rainfall) is September (14mm).

Average rainfall days in September
Union Vale, Mauritius
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is March (21.8 days).
The month with the least rainy days is November (11.2 days).

Average daylight in September /
Average sunshine in September
Union Vale, 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 18min).
The month with the least sunshine is July (Average sunshine: 6h and 6min).

Average sunshine days in September
Union Vale, Mauritius
  • Average sunshine days in September: 10.5 days

The month with the most sunshine days is November (14.2 days).
The month with the least sunshine days is February (4 days).

Average UV index in September
Union Vale, 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
Union Vale, Mauritius
  • Average cloud cover in September: 38

The months with the most cloud cover are March and April (Cloud cover 45).
The months with the least cloud cover are September and October (Cloud cover 38).

Average visibility in September
Union Vale, 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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