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
Weather in May
Temperature
As La Roche-Derrien welcomes May, the average high-temperature stabilizes at a moderate 14.3°C (57.7°F), showing little deviation from April's 12.6°C (54.7°F). In La Roche-Derrien, the nighttime temperature shows a slight difference from the daytime high, averaging to a frosty 9.6°C (49.3°F) during May.Humidity
In May, the average relative humidity in La Roche-Derrien is 84%.Rainfall
In La Roche-Derrien, in May, it is raining for 16.7 days, with typically 37mm (1.46") of accumulated precipitation. Throughout the year, in La Roche-Derrien, there are 214.5 rainfall days, and 643mm (25.31") of precipitation is accumulated.Snowfall
April through October are months without snowfall in La Roche-Derrien.Daylight
In La Roche-Derrien, the average length of the day in May is 15h and 17min.On the first day of the month, sunrise is at 06:51 and sunset at 21:28. On the last day of May, sunrise is at 06:14 and sunset at 22:06 CEST.
Sunshine
In La Roche-Derrien, the average sunshine in May is 8.6h.UV index
The average daily maximum UV index in May in La Roche-Derrien is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 4 during May leads to these advisories:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What is the average May temperature in La Roche-Derrien?
What is the average humidity in May in La Roche-Derrien?
How much does it rain in La Roche-Derrien in May?
When it does not snow in La Roche-Derrien?
How many hours of daylight does La Roche-Derrien have in May?
What time are sunrise and sunset in May in La Roche-Derrien?
How long on average sun shines in May in La Roche-Derrien?
How high is the UV index in May in La Roche-Derrien?
Average temperature in May
La Roche-Derrien, France
- Average high temperature in May: 14.3°C
The warmest month (with the highest average high temperature) is August (19.1°C).
The month with the lowest average high temperature is January (9°C).
- Average low temperature in May: 9.6°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (5.4°C).
Average pressure in May
La Roche-Derrien, France
- Average pressure in May: 1017.5mbar
The month with the highest atmospheric pressure is September (1018.2mbar).
The month with the lowest atmospheric pressure is November (1011.9mbar).
Average wind speed in May
La Roche-Derrien, France
- Average wind speed in May: 17.6km/h
The windiest months (with the highest average wind speed) are February and December (25.3km/h).
The calmest month (with the lowest average wind speed) is July (16.3km/h).
Average humidity in May
La Roche-Derrien, France
- Average humidity in May: 84%
The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are February, March, April, September and October (82%).
Average rainfall in May
La Roche-Derrien, France
- Average rainfall in May: 37mm
The wettest month (with the highest rainfall) is November (82mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in May
La Roche-Derrien, France
- Average rainfall days in May: 16.7 days
The month with the highest number of rainy days is November (21.7 days).
The month with the least rainy days is September (13.7 days).
Average snowfall in May
La Roche-Derrien, France
- Average snowfall in May: 0mm
The month with the highest snowfall is January (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
La Roche-Derrien, France
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.9 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
La Roche-Derrien, 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 24min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in May
La Roche-Derrien, France
- Average sunshine days in May: 10.1 days
The month with the most sunshine days is September (11.1 days).
The month with the least sunshine days is November (4.8 days).
Average UV index in May
La Roche-Derrien, France
- Average UV index in May: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in May
La Roche-Derrien, France
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are April, July and September (Cloud cover 42).
Average visibility in May
La Roche-Derrien, France
- Average visibility in May: 9km
The months with the highest visibility are March, April, June, July and September (10km).
The months with the lowest visibility are January, February, May, August, October, November and December (9km).
La Roche-Derrien, France
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