Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
The advent of May brings an average high-temperature of a still comfortable 18.1°C (64.6°F), exhibiting minor difference from the previous month. May nights in Groslay are marked by an average low-temperature of 8.9°C (48°F).Humidity
The average relative humidity in May is 77%.Rainfall
In Groslay, France, in May, during 13.8 rainfall days, 22mm (0.87") of precipitation is typically accumulated. Throughout the year, there are 149.5 rainfall days, and 278mm (10.94") of precipitation is accumulated.Snowfall
In Groslay, snow does not fall in April through October.Daylight
In Groslay, the average length of the day in May is 15h and 19min.On the first day of May, sunrise is at 06:28 and sunset at 21:06. On the last day of the month, sunrise is at 05:51 and sunset at 21:45 CEST.
Sunshine
In Groslay, the average sunshine in May is 8.2h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In May, the maximum UV index of 5 suggests this advice:
Prioritize safety - Suggestions to prevent sun damage are offered. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Groslay?
What is the average humidity in May in Groslay?
How much does it rain in Groslay in May?
When it does not snow in Groslay?
What is the average length of the day in May in Groslay?
What time are sunrise and sunset in May in Groslay?
How many hours of sunshine does Groslay have in May?
How high is the UV index in May in Groslay?
Average temperature in May
Groslay, France
- Average high temperature in May: 18.1°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 (5.9°C).
- Average low temperature in May: 8.9°C
The month with the highest average low temperature is August (14.8°C).
The coldest months (with the lowest average low temperature) are January and February (1.8°C).
Average pressure in May
Groslay, France
- Average pressure in May: 1016.8mbar
The months with the highest atmospheric pressure are September and December (1018.1mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed in May
Groslay, France
- Average wind speed in May: 11.7km/h
The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in May
Groslay, France
- Average humidity in May: 77%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (68%).
Average rainfall in May
Groslay, France
- Average rainfall in May: 22mm
The wettest month (with the highest rainfall) is December (31mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in May
Groslay, France
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is September (9.2 days).
Average snowfall in May
Groslay, France
- Average snowfall in May: 0mm
The months with the highest snowfall are January, February and December (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Groslay, France
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.2 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
Groslay, France
- Average daylight in May: 15h and 2min
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 1min
The month with the most sunshine is August (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Groslay, France
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is February (12.5 days).
Average UV index in May
Groslay, France
- Average UV index in May: 5
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
Groslay, France
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 39).
Average visibility in May
Groslay, 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).
