September weather forecastPhoenix, Mauritius
September
Weather in September
September's standout figure comes in the form of its UV index value at 6, representing the year's most subdued figure in Phoenix. This month takes the fluctuation of weather elements a step further by increasing the temperature slightly while still maintaining low humidity levels. Also notable about September is the way it subtly ushers in the increase in temperature unique to the closing months of the year in Phoenix.Temperature
September's beginning in Phoenix signals an average high-temperature of a still warm 23.7°C (74.7°F), barely different from August's 23.3°C (73.9°F). Phoenix's nighttime temperature in September shows a minor descent, with a steady average of 20.8°C (69.4°F).Humidity
The months with the lowest humidity in Phoenix are August and September, with an average relative humidity of 73%.Rainfall
The month with the least rainfall in Phoenix, Mauritius, is September, when the rain falls for 14.3 days and typically collects 15mm (0.59") of precipitation.Daylight
In September, the average length of the day is 11h and 59min.On the first day of September, sunrise is at 06:18 and sunset at 18:01. On the last day of the month, sunrise is at 05:51 and sunset at 18:07 +04.
Sunshine
In September, the average sunshine is 8.8h.UV index
The months with the lowest UV index in Phoenix are April through November, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Phoenix, 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: 20.8°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
Phoenix, Mauritius
- Average pressure in September: 1020.4mbar
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
Phoenix, Mauritius
- Average wind speed in September: 21.2km/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
Phoenix, 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
Phoenix, Mauritius
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is January (129mm).
The driest month (with the least rainfall) is September (15mm).
Average rainfall days in September
Phoenix, Mauritius
- Average rainfall days in September: 14.3 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
Phoenix, 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: 8h and 48min
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
Phoenix, Mauritius
- Average sunshine days in September: 8.6 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
Phoenix, 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
Phoenix, Mauritius
- Average cloud cover in September: 39
The months with the most cloud cover are March and April (Cloud cover 45).
The months with the least cloud cover are May and June (Cloud cover 38).
Average visibility in September
Phoenix, 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).





