September weather forecastLa Terrasse, France
September
Weather in September
September, the first month of the autumn in La Terrasse, is still a comfortable month, with an average temperature fluctuating between 18.3°C (64.9°F) and 8°C (46.4°F).Temperature
September's arrival comes with a mild decrease in the average high-temperature, moving subtly from an agreeable 22.6°C (72.7°F) in August to a comfortable 18.3°C (64.9°F). Throughout September, the average low-temperature in La Terrasse dips to a chilly 8°C (46.4°F).Humidity
In La Terrasse, France, the average relative humidity in September is 79%.Rainfall
The month with the least rainfall in La Terrasse is September, when the rain falls for 10.6 days and typically collects 23mm (0.91") of precipitation.Snowfall
In La Terrasse, France, snow does not fall in June through September.Daylight
In La Terrasse, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 06:58 and sunset at 20:13. On the last day of the month, sunrise is at 07:33 and sunset at 19:18 CEST.
Sunshine
In La Terrasse, the average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September in La Terrasse is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 4 in September transforms into the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
La Terrasse, France
- Average high temperature in September: 18.3°C
The warmest months (with the highest average high temperature) are July and August (22.6°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in September: 8°C
The months with the highest average low temperature are July and August (11.2°C).
The coldest month (with the lowest average low temperature) is February (-3.7°C).
Average pressure in September
La Terrasse, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in September
La Terrasse, France
- Average wind speed in September: 6.2km/h
The windiest month (with the highest average wind speed) is February (8km/h).
The calmest month (with the lowest average wind speed) is September (6.2km/h).
Average humidity in September
La Terrasse, France
- Average humidity in September: 79%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
La Terrasse, France
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is December (50mm).
The driest month (with the least rainfall) is September (23mm).
Average rainfall days in September
La Terrasse, France
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
La Terrasse, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (197mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
La Terrasse, France
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
La Terrasse, France
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 48min
The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
La Terrasse, France
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in September
La Terrasse, France
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
La Terrasse, France
- Average cloud cover in September: 31
The months with the most cloud cover are January and February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
La Terrasse, France
- Average visibility in September: 8km
The months with the highest visibility are March and August (9km).
The months with the lowest visibility are January, February, April, May, June, July, September, October, November and December (8km).
