September weather forecast
Valetta, Mauritius

September

Weather in September

The first month of the spring, September, is still a warm month in Valetta, Mauritius, with temperature in the range of an average low of 21.3°C (70.3°F) and an average high of 23.7°C (74.7°F).

Temperature

The advent of September presents an average high-temperature of a still warm 23.7°C (74.7°F), maintaining a close correlation with the preceding month. During the month of September, Valetta's average nighttime temperature closely mirrors its daytime counterpart, at a pleasant 21.3°C (70.3°F).

Humidity

The months with the lowest humidity in Valetta, Mauritius, are August and September, with an average relative humidity of 73%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13.1 days and typically collects 12mm (0.47") of precipitation.

Daylight

In Valetta, the average length of the day in September is 11h and 59min.
On the first day of September, sunrise is at 06:17 and sunset at 18:01. On the last day of the month, sunrise is at 05:51 and sunset at 18:07 +04.

Sunshine

The average sunshine in September is 9.1h.

UV index

April through November, with an average maximum UV index of 6, are months with the lowest UV index in Valetta. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in September interprets into the following advice:
Resist extreme sun exposure. Guarding against solar damage is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.

Frequently asked questions

What are the temperatures in Valetta in September?
The high-temperature, in September, in Valetta, records 23.7°C (74.7°F), while the low-temperature is 21.3°C (70.3°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in April is computed to be 30°C (86°F).
What are the least humid months in Valetta?
The months with the lowest humidity are August and September, with an average relative humidity of 73%.
What is the average humidity in September in Valetta?
In September, the average relative humidity in Valetta, Mauritius, is 73%.
What is the driest month in Valetta?
The month with the least rainfall in Valetta is September, when the rain falls for 13.1 days and typically collects 12mm (0.47") of precipitation.
How much does it rain in Valetta in September?
In Valetta, Mauritius, in September, it is raining for 13.1 days, with typically 12mm (0.47") of accumulated precipitation.
What is the average length of the day in September in Valetta?
The average day length in September in Valetta, Mauritius, is 11h and 59min.
When is the sunrise / sunset in September in Valetta?
On the first day of September, sunrise is at 06:17 and sunset at 18:01. On the last day of the month, sunrise is at 05:51 and sunset at 18:07 +04.
How many hours of sunshine does Valetta have in September?
The average sunshine duration in September in Valetta is 9.1h.
What is the month with the lowest UV index in Valetta?
The months with the lowest UV index in Valetta are April through November, with an average maximum UV index of 6.
What is the UV index intensity in September in Valetta?
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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
Valetta, Mauritius
  • Average high temperature in September: 23.7°C

The warmest month (with the highest average high temperature) is February (28.5°C).
The months with the lowest average high temperature are July and August (23.3°C).

  • Average low temperature in September: 21.3°C

The month with the highest average low temperature is February (25.6°C).
The coldest month (with the lowest average low temperature) is August (20.7°C).

Average pressure in September
Valetta, 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
Valetta, Mauritius
  • Average wind speed in September: 21.5km/h

The windiest month (with the highest average wind speed) is August (22.8km/h).
The calmest month (with the lowest average wind speed) is November (16.4km/h).

Average humidity in September
Valetta, 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
Valetta, Mauritius
  • Average rainfall in September: 12mm

The wettest month (with the highest rainfall) is January (129mm).
The driest month (with the least rainfall) is September (12mm).

Average rainfall days in September
Valetta, Mauritius
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is March (23.6 days).
The month with the least rainy days is October (12.2 days).

Average daylight in September /
Average sunshine in September
Valetta, 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 12min).
The month with the least sunshine is July (Average sunshine: 6h and 12min).

Average sunshine days in September
Valetta, Mauritius
  • Average sunshine days in September: 9.3 days

The month with the most sunshine days is October (11.8 days).
The month with the least sunshine days is February (3.2 days).

Average UV index in September
Valetta, Mauritius
  • Average UV index in September: 6

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

Average cloud cover in September
Valetta, Mauritius
  • Average cloud cover in September: 37

The months with the most cloud cover are March and April (Cloud cover 45).
The month with the least cloud cover is September (Cloud cover 37).

Average visibility in September
Valetta, 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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