Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
Grand Sable's September showcases an average high-temperature of a moderately hot 23.2°C (73.8°F), hardly distinct from August's 22.9°C (73.2°F). The nights of September cool down to an average low of 21.6°C (70.9°F), subtly lower than daytime highs.Humidity
The months with the lowest humidity in Grand Sable are July through September, with an average relative humidity of 74%.Rainfall
September is the month with the least rainfall in Grand Sable. Rain falls for 12.8 days and accumulates 14mm (0.55") of precipitation.Sea temperature
With an average sea temperature of 23.4°C (74.1°F), September is the month with the coldest seawater in Grand Sable.Note: Swimming in 23.4°C (74.1°F) waters may not appeal to those sensitive to cold. Yet, the presence of sunshine, the strength of the wind, and the air temperature can alter this experience. Some might even opt for a wetsuit for added comfort.
Daylight
In September, the average length of the day is 11h and 59min.On the first day of September in Grand Sable, sunrise is at 06:17 and sunset at 18:00. On the last day of the month, sunrise is at 05:50 and sunset at 18:06 +04.
Sunshine
In Grand Sable, the average sunshine in September is 9.1h.UV index
The months with the lowest UV index are May through November, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 6 in September translates into these instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Grand Sable?
What are the least humid months in Grand Sable?
What is the average humidity in September in Grand Sable?
What is the driest month in Grand Sable?
How much does it rain in Grand Sable in September?
What is the month with the coldest sea water in Grand Sable?
How warm is the water in September in Grand Sable?
How many hours of daylight does Grand Sable have in September?
When are sunrise and sunset in September in Grand Sable?
How long on average sun shines in September in Grand Sable?
What is the month with the lowest UV index in Grand Sable?
How high is the UV index in September in Grand Sable?
Average temperature in September
Grand Sable, 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
Grand Sable, 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
Grand Sable, 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
Grand Sable, 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
Grand Sable, 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
Grand Sable, 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 sea temperature in September
Grand Sable, 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 Sable, 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
Grand Sable, 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
Grand Sable, 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
Grand Sable, 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
Grand Sable, 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).
