May weather forecastGrandval, France
May
Weather in May
The last month of the spring, May, is an enjoyable month in Grandval, France, with an average temperature varying between 16.9°C (62.4°F) and 6.6°C (43.9°F).Temperature
With the onset of May, the average high-temperature stands at a still refreshing 16.9°C (62.4°F), closely aligned with April's 14.3°C (57.7°F). During May in Grandval, France, the average low-temperature is recorded at a chilly 6.6°C (43.9°F).Humidity
In Grandval, the average relative humidity in May is 82%.Rainfall
In Grandval, during May, the rain falls for 19.9 days and regularly aggregates up to 59mm (2.32") of precipitation. Throughout the year, there are 178.9 rainfall days, and 492mm (19.37") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Grandval aggregates 2mm (0.08") of snow. Throughout the year, there are 21.5 snowfall days, and 145mm (5.71") of snow is accumulated.Daylight
In May, the average length of the day is 14h and 56min.On the first day of May in Grandval, France, sunrise is at 06:32 and sunset at 20:52. On the last day of the month, sunrise is at 05:59 and sunset at 21:26 CEST.
Sunshine
In Grandval, the average sunshine in May is 8.5h.UV index
The average daily maximum UV index in May in Grandval is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, a daily maximum UV index of 4 leads to the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Grandval, France
- Average high temperature in May: 16.9°C
The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (5.1°C).
- Average low temperature in May: 6.6°C
The month with the highest average low temperature is August (12.2°C).
The coldest month (with the lowest average low temperature) is February (-1.2°C).
Average pressure in May
Grandval, France
- Average pressure in May: 1016.7mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is November (1015.5mbar).
Average wind speed in May
Grandval, France
- Average wind speed in May: 9.8km/h
The windiest month (with the highest average wind speed) is February (11.9km/h).
The calmest month (with the lowest average wind speed) is August (7.5km/h).
Average humidity in May
Grandval, France
- Average humidity in May: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (73%).
Average rainfall in May
Grandval, France
- Average rainfall in May: 59mm
The wettest month (with the highest rainfall) is June (67mm).
The driest month (with the least rainfall) is September (25mm).
Average rainfall days in May
Grandval, France
- Average rainfall days in May: 19.9 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is October (11.2 days).
Average snowfall in May
Grandval, France
- Average snowfall in May: 2mm
The month with the highest snowfall is February (43mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Grandval, France
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Grandval, France
- Average daylight in May: 14h and 54min
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 May: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in May
Grandval, France
- Average sunshine days in May: 8 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is May (8 days).
Average UV index in May
Grandval, France
- Average UV index in May: 4
The months with the highest UV index are 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 May
Grandval, France
- Average cloud cover in May: 49
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Grandval, France
- Average visibility in May: 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).





