May weather forecastDerval, France

May

Weather in May

The last month of the spring, May, is a refreshing month in Derval, France, with an average temperature varying between 17.4°C (63.3°F) and 8°C (46.4°F).

Temperature

The advent of May brings an average high-temperature of an enjoyable 17.4°C (63.3°F), exhibiting minor difference from the previous month. Derval experiences an average temperature drop to a chilly 8°C (46.4°F) during May nights.

Humidity

In May, the average relative humidity in Derval is 83%.

Rainfall

In May, in Derval, the rain falls for 15.3 days. Throughout May, 30mm (1.18") of precipitation is accumulated. Throughout the year, there are 150.1 rainfall days, and 330mm (12.99") of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in May in Derval is 15h and 9min.
On the first day of May in Derval, sunrise is at 06:48 and sunset at 21:19. On the last day of the month, sunrise is at 06:12 and sunset at 21:56 CEST.

Sunshine

In Derval, France, the average sunshine in May is 8.1h.

UV index

In Derval, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, the maximum UV index of 4 transforms into these recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. To avoid the Sun's strongest rays, limit exposure around the mid-day period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.

Frequently asked questions

The high-temperature, in May, in Derval, records 17.4°C (63.3°F), while the low-temperature is 8°C (46.4°F).

The average relative humidity in May is 83%.

In May, in Derval, the rain falls for 15.3 days. Throughout May, 30mm (1.18") of precipitation is accumulated.

May through October are months without snowfall in Derval, France.

In May, in Derval, France, it doesn't snow. April is the latest month when it typically snows.

In May, the average day length in Derval is 15h and 9min.

On the first day of May, sunrise is at 06:48 and sunset at 21:19. On the last day of the month, sunrise is at 06:12 and sunset at 21:56 CEST.

In May, the average sunshine duration in Derval, France, is 8.1h.

The average daily maximum UV index in May in Derval is 4. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Derval, France

  • Average high temperature in May: 17.4°C

The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (8.4°C).

  • Average low temperature in May: 8°C

The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).

Average pressure in May
Derval, France

  • Average pressure in May: 1017.3mbar

The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).

Average wind speed in May
Derval, France

  • Average wind speed in May: 13.2km/h

The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).

Average humidity in May
Derval, France

  • Average humidity in May: 83%

The month with the highest relative humidity is December (88%).
The months with the lowest relative humidity are July, August and September (78%).

Average rainfall in May
Derval, France

  • Average rainfall in May: 30mm

The wettest month (with the highest rainfall) is June (39mm).
The driest month (with the least rainfall) is September (12mm).

Average rainfall days in May
Derval, France

  • Average rainfall days in May: 15.3 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is September (8.4 days).

Average snowfall in May
Derval, France

  • Average snowfall in May: 0mm

The months with the highest snowfall are February, March, April and December (2mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in May
Derval, France

  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Derval, France

  • Average daylight in May: 15h and 12min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in May: 8h and 6min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in May
Derval, France

  • Average sunshine days in May: 12.1 days

The month with the most sunshine days is September (18.5 days).
The month with the least sunshine days is May (12.1 days).

Average UV index in May
Derval, 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
Derval, France

  • Average cloud cover in May: 48

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 41).

Average visibility in May
Derval, France

  • Average visibility in May: 8km

The months with the highest visibility are January, February, March, April, June, July, October, November and December (9km).
The months with the lowest visibility are May, August and September (8km).