May weather forecastDechy, France
May
Weather in May
May, the last month of the spring in Dechy, is a comfortable month, with an average temperature varying between 17.5°C (63.5°F) and 8°C (46.4°F).Temperature
Dechy records an average high-temperature of a comfortable 17.5°C (63.5°F) in May, closely mirroring the climate of the previous month. Dechy experiences a consistent average temperature of 8°C (46.4°F) throughout the nights in May.Humidity
In May, the average relative humidity is 78%.Rainfall
In May, in Dechy, the rain falls for 10 days. Throughout May, 12mm (0.47") of precipitation is accumulated. Throughout the year, there are 108.2 rainfall days, and 145mm (5.71") of precipitation is accumulated.Snowfall
March through November are months without snowfall in Dechy.Daylight
In May, the average length of the day in Dechy is 15h and 29min.On the first day of the month, sunrise is at 06:21 and sunset at 21:07. On the last day of May, sunrise is at 05:41 and sunset at 21:48 CEST.
Sunshine
The average sunshine in May is 8.2h.UV index
In May, the average daily maximum UV index in Dechy is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In May, the maximum UV index of 4 translates into these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Dechy, France
- Average high temperature in May: 17.5°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (5.7°C).
- Average low temperature in May: 8°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (1.1°C).
Average pressure in May
Dechy, France
- Average pressure in May: 1016.7mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1012.4mbar).
Average wind speed in May
Dechy, France
- Average wind speed in May: 13.3km/h
The windiest months (with the highest average wind speed) are February and December (18.1km/h).
The calmest month (with the lowest average wind speed) is August (12.1km/h).
Average humidity in May
Dechy, France
- Average humidity in May: 78%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (73%).
Average rainfall in May
Dechy, France
- Average rainfall in May: 12mm
The wettest month (with the highest rainfall) is December (18mm).
The driest month (with the least rainfall) is September (5mm).
Average rainfall days in May
Dechy, France
- Average rainfall days in May: 10 days
The month with the highest number of rainy days is June (11.1 days).
The month with the least rainy days is September (7 days).
Average snowfall in May
Dechy, France
- Average snowfall in May: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Dechy, France
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.5 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
Dechy, France
- Average daylight in May: 15h and 30min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in May: 8h and 12min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Dechy, France
- Average sunshine days in May: 15.2 days
The month with the most sunshine days is October (20 days).
The month with the least sunshine days is June (14.1 days).
Average UV index in May
Dechy, 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
Dechy, France
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in May
Dechy, 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).





