May weather forecastBoissy-Saint-Léger, France
May weather for Boissy-Saint-Léger, France: May, the last month of the spring in Boissy-Saint-Léger, is another comfortable month, with an average temperature ranging between max 18.3°C (64.9°F) and min 9.2°C (48.6°F). On the first day of May in Boissy-Saint-Léger, sunrise is at 06:28 and sunset at 21:05.
May
Weather in May
May, the last month of the spring in Boissy-Saint-Léger, is another comfortable month, with an average temperature ranging between max 18.3°C (64.9°F) and min 9.2°C (48.6°F).Temperature
Boissy-Saint-Léger observes an average high-temperature of a still comfortable 18.3°C (64.9°F) in May, barely different from 16°C (60.8°F) in April. During the month of May, an average temperature of 9.2°C (48.6°F) is noted during the nights in Boissy-Saint-Léger.Humidity
The average relative humidity in May is 77%.Rainfall
In May, in Boissy-Saint-Léger, the rain falls for 17.1 days. Throughout May, 49mm (1.93") of precipitation is accumulated. Throughout the year, in Boissy-Saint-Léger, there are 172.7 rainfall days, and 467mm (18.39") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Boissy-Saint-Léger, France.Daylight
The average length of the day in May is 15h and 17min.On the first day of May in Boissy-Saint-Léger, sunrise is at 06:28 and sunset at 21:05. On the last day of the month, sunrise is at 05:51 and sunset at 21:43 CEST.
Sunshine
The average sunshine in May is 8.5h.UV index
In Boissy-Saint-Léger, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, a daily UV index of 4 turns into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Boissy-Saint-Léger, France
- Average high temperature in May: 18.3°C
The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in May: 9.2°C
The month with the highest average low temperature is August (15.1°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in May
Boissy-Saint-Léger, France
- Average pressure in May: 1016.8mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1013.5mbar).
Average wind speed in May
Boissy-Saint-Léger, France
- Average wind speed in May: 11.4km/h
The windiest month (with the highest average wind speed) is February (15.4km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in May
Boissy-Saint-Léger, France
- Average humidity in May: 77%
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is August (68%).
Average rainfall in May
Boissy-Saint-Léger, France
- Average rainfall in May: 49mm
The wettest month (with the highest rainfall) is June (52mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days in May
Boissy-Saint-Léger, France
- Average rainfall days in May: 17.1 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is September (10.7 days).
Average snowfall in May
Boissy-Saint-Léger, France
- Average snowfall in May: 0mm
The month with the highest snowfall is January (29mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Boissy-Saint-Léger, France
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Boissy-Saint-Léger, France
- Average daylight in May: 15h 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 May: 8h and 30min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Boissy-Saint-Léger, France
- Average sunshine days in May: 11.4 days
The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in May
Boissy-Saint-Léger, France
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Boissy-Saint-Léger, France
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in May
Boissy-Saint-Léger, France
- Average visibility in May: 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).





