September weather forecastNiort, France
September
Weather in September
September, the first month of the autumn in Niort, is still a pleasant month, with an average temperature varying between 22.6°C (72.7°F) and 12.5°C (54.5°F).Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to a pleasant 22.6°C (72.7°F) from a moderately hot 25.8°C (78.4°F). Niort experiences an average temperature drop to a cool 12.5°C (54.5°F) during September nights.Humidity
In September, the average relative humidity in Niort is 71%.Rainfall
In Niort, France, during September, the rain falls for 9.3 days and regularly aggregates up to 22mm (0.87") of precipitation. Throughout the year, in Niort, there are 155 rainfall days, and 425mm (16.73") of precipitation is accumulated.Snowfall
In Niort, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 32min.On the first day of the month, sunrise is at 07:22 and sunset at 20:40. On the last day of September, sunrise is at 07:59 and sunset at 19:43 CEST.
Sunshine
In September, the average sunshine in Niort, France, is 8.1h.UV index
In Niort, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Niort, France
- Average high temperature in September: 22.6°C
The warmest month (with the highest average high temperature) is August (25.8°C).
The month with the lowest average high temperature is January (8.1°C).
- Average low temperature in September: 12.5°C
The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is February (2.4°C).
Average pressure in September
Niort, France
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is December (1020mbar).
The month with the lowest atmospheric pressure is November (1014.2mbar).
Average wind speed in September
Niort, France
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is February (17.1km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).
Average humidity in September
Niort, France
- Average humidity in September: 71%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Niort, France
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is November (61mm).
The driest months (with the least rainfall) are July and August (21mm).
Average rainfall days in September
Niort, France
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is September (9.3 days).
Average snowfall in September
Niort, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (4mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Niort, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Niort, France
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in September
Niort, France
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is November (12 days).
Average UV index in September
Niort, France
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in September
Niort, France
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Niort, France
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is May (8km).
