August weather forecastPoissy, France
August
Weather in August
The last month of the summer, August, is another warm month in Poissy, France, with temperature in the range of an average high of 24.5°C (76.1°F) and an average low of 14.8°C (58.6°F).Temperature
With its high average temperature of 24.5°C (76.1°F) and a low of 14.8°C (58.6°F), August is regarded as the warmest month.Humidity
With an average relative humidity of 69%, August is the least humid month.Rainfall
In August, in Poissy, France, the rain falls for 11.8 days. Throughout August, 27mm (1.06") of precipitation is accumulated. In Poissy, during the entire year, the rain falls for 147 days and collects up to 321mm (12.64") of precipitation.Snowfall
In Poissy, France, snow does not fall in April through October.Daylight
In Poissy, the average length of the day in August is 14h and 20min.On the first day of August, sunrise is at 06:25 and sunset at 21:30. On the last day of the month, sunrise is at 07:07 and sunset at 20:36 CEST.
Sunshine
The months with the most sunshine in Poissy, France, are July and August, with an average of 9.1h of sunshine.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 5 in August translates into this advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Poissy, France
- Average high temperature in August: 24.5°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 August: 14.8°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 August
Poissy, France
- Average pressure in August: 1016.5mbar
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 August
Poissy, France
- Average wind speed in August: 10.2km/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 August
Poissy, France
- Average humidity in August: 69%
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 August
Poissy, France
- Average rainfall in August: 27mm
The wettest month (with the highest rainfall) is June (40mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in August
Poissy, France
- Average rainfall days in August: 11.8 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 August
Poissy, France
- Average snowfall in August: 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 August
Poissy, France
- Average snowfall days in August: 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 August /
Average sunshine in August
Poissy, France
- Average daylight in August: 14h and 18min
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 August: 9h and 6min
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 August
Poissy, France
- Average sunshine days in August: 16.3 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 August
Poissy, France
- Average UV index in August: 5
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 August
Poissy, France
- Average cloud cover in August: 39
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 August
Poissy, France
- Average visibility in August: 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).





