September weather forecastMaisons-Laffitte, France
September
Weather in September
September, the first month of the autumn in Maisons-Laffitte, is also an agreeable month, with an average temperature varying between 11.6°C (52.9°F) and 20.9°C (69.6°F).Temperature
Maisons-Laffitte's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's moderately hot 24.5°C (76.1°F) to an agreeable 20.9°C (69.6°F). Maisons-Laffitte witnesses an average low-temperature of 11.6°C (52.9°F) throughout the month of September.Humidity
In Maisons-Laffitte, the average relative humidity in September is 73%.Rainfall
September is the month with the least rainfall in Maisons-Laffitte. Rain falls for 9 days and accumulates 14mm (0.55") of precipitation.Snowfall
April through October are months without snowfall in Maisons-Laffitte.Daylight
In Maisons-Laffitte, the average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 07:08 and sunset at 20:33. On the last day of September, in Maisons-Laffitte, France, sunrise is at 07:50 and sunset at 19:32 CEST.
Sunshine
In Maisons-Laffitte, the average sunshine in September is 7.7h.UV index
In Maisons-Laffitte, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 4 during September leads to these instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Minimize direct exposure to the Sun during midday when its radiation is at its peak. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Maisons-Laffitte, France
- Average high temperature in September: 20.9°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (6.1°C).
- Average low temperature in September: 11.6°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (1.7°C).
Average pressure in September
Maisons-Laffitte, France
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed in September
Maisons-Laffitte, France
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is February (15.8km/h).
The calmest month (with the lowest average wind speed) is August (10.2km/h).
Average humidity in September
Maisons-Laffitte, France
- Average humidity in September: 73%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Maisons-Laffitte, France
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is June (40mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in September
Maisons-Laffitte, France
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is September (9 days).
Average snowfall in September
Maisons-Laffitte, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (18mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Maisons-Laffitte, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.3 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
Maisons-Laffitte, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 7h and 42min
The months with the most sunshine are July and August (Average sunshine: 9h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Maisons-Laffitte, France
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is September (18.8 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in September
Maisons-Laffitte, France
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Maisons-Laffitte, France
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 38).
Average visibility in September
Maisons-Laffitte, France
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
