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 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
Weather in September
Temperature
On the advent of September, La Montagne's average high-temperature exhibits a minor adjustment to a still agreeable 20.8°C (69.4°F) from August's 20.5°C (68.9°F). In September, La Montagne's nighttime temperatures demonstrate a slight decrease, stabilizing at an average of 18.3°C (64.9°F).Humidity
The months with the lowest humidity are July through September, with an average relative humidity of 80%.Rainfall
September is the month with the least rainfall. Rain falls for 19.6 days and accumulates 24mm (0.94") of precipitation.Daylight
The average length of the day in September is 11h and 59min.On the first day of September, sunrise is at 06:26 and sunset at 18:09. On the last day of the month, sunrise is at 05:59 and sunset at 18:16 +04.
Sunshine
In La Montagne, the average sunshine in September is 8.7h.UV index
The months with the lowest UV index are May through October, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 5 during September translates into the following directions:
Act with care - The need to guard against sun damage is communicated. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the least humid month?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the lowest UV index?
What is the UV index reading in September?
Average temperature in September
La Montagne, Reunion
- Average high temperature in September: 20.8°C
The warmest month (with the highest average high temperature) is January (25.7°C).
The month with the lowest average high temperature is July (20.4°C).
- Average low temperature in September: 18.3°C
The month with the highest average low temperature is February (23.3°C).
The coldest month (with the lowest average low temperature) is August (17.9°C).
Average pressure in September
La Montagne, Reunion
- Average pressure in September: 1020.7mbar
The month with the highest atmospheric pressure is August (1021.2mbar).
The month with the lowest atmospheric pressure is February (1011mbar).
Average wind speed in September
La Montagne, Reunion
- Average wind speed in September: 15.7km/h
The windiest month (with the highest average wind speed) is July (17.6km/h).
The calmest month (with the lowest average wind speed) is December (12.4km/h).
Average humidity in September
La Montagne, Reunion
- Average humidity in September: 80%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July, August and September (80%).
Average rainfall in September
La Montagne, Reunion
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is March (178mm).
The driest month (with the least rainfall) is September (24mm).
Average rainfall days in September
La Montagne, Reunion
- Average rainfall days in September: 19.6 days
The month with the highest number of rainy days is March (26.3 days).
The month with the least rainy days is September (19.6 days).
Average daylight in September /
Average sunshine in September
La Montagne, Reunion
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is October (Average sunshine: 10h and 0min).
The month with the least sunshine is June (Average sunshine: 6h and 24min).
Average sunshine days in September
La Montagne, Reunion
- Average sunshine days in September: 2.7 days
The month with the most sunshine days is October (5.5 days).
The month with the least sunshine days is December (1.9 days).
Average UV index in September
La Montagne, Reunion
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, November and December (UV index 6).
The months with the lowest UV index are May, June, July, August, September and October (UV index 5).
Average cloud cover in September
La Montagne, Reunion
- Average cloud cover in September: 34
The month with the most cloud cover is March (Cloud cover 49).
The months with the least cloud cover are July, August and September (Cloud cover 34).
Average visibility in September
La Montagne, Reunion
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
La Montagne, Reunion
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