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 start of May sees the average high-temperature at a comfortable 17.1°C (62.8°F), showing little difference from April's 14.5°C (58.1°F). Semilly records an average nighttime low-temperature of 7.8°C (46°F) throughout May.Humidity
The average relative humidity in May is 84%.Rainfall
In May, in Semilly, the rain falls for 18.3 days. Throughout May, 61mm (2.4") of precipitation is accumulated. Throughout the year, in Semilly, there are 177.5 rainfall days, and 614mm (24.17") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Semilly.Daylight
The average length of the day in May is 15h and 13min.On the first day of May in Semilly, sunrise is at 06:18 and sunset at 20:52. On the last day of the month, sunrise is at 05:41 and sunset at 21:29 CEST.
Sunshine
The average sunshine in May is 8.1h.UV index
In May, the average daily maximum UV index in Semilly, France, is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 4 during May translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Semilly in May?
What is the average humidity in May in Semilly?
How much does it rain in Semilly in May?
When it does not snow in Semilly?
How many hours of daylight does Semilly have in May?
When is the sunrise / sunset in May in Semilly?
How long on average sun shines in May in Semilly?
How high is the UV index in May in Semilly?
Average temperature in May
Semilly, France
- Average high temperature in May: 17.1°C
The warmest month (with the highest average high temperature) is August (23.6°C).
The month with the lowest average high temperature is January (4.2°C).
- Average low temperature in May: 7.8°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is January (-0.4°C).
Average pressure in May
Semilly, France
- Average pressure in May: 1016.6mbar
The month with the highest atmospheric pressure is December (1019.7mbar).
The month with the lowest atmospheric pressure is November (1014.8mbar).
Average wind speed in May
Semilly, France
- Average wind speed in May: 11.3km/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 (9.5km/h).
Average humidity in May
Semilly, France
- Average humidity in May: 84%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is August (76%).
Average rainfall in May
Semilly, France
- Average rainfall in May: 61mm
The wettest month (with the highest rainfall) is December (70mm).
The driest month (with the least rainfall) is September (38mm).
Average rainfall days in May
Semilly, France
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is September (11.7 days).
Average snowfall in May
Semilly, France
- Average snowfall in May: 0mm
The month with the highest snowfall is January (55mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Semilly, France
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (6.1 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
Semilly, France
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in May: 8h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in May
Semilly, France
- Average sunshine days in May: 9.9 days
The month with the most sunshine days is September (16.6 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in May
Semilly, 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
Semilly, France
- Average cloud cover in May: 48
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in May
Semilly, France
- Average visibility in May: 8km
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).
