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
Porrentruy's transition from April to May introduces an average high-temperature of a comfortable 16.7°C (62.1°F), marking an insignificant variation from the 14°C (57.2°F). Porrentruy cools down to an average low-temperature of 6.5°C (43.7°F) throughout the month of May.Humidity
In May, the average relative humidity in Porrentruy is 84%.Rainfall
In Porrentruy, in May, during 20.7 rainfall days, 81mm (3.19") of precipitation is typically accumulated. Throughout the year, in Porrentruy, there are 188.6 rainfall days, and 818mm (32.2") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Porrentruy. May is the last month it regularly snows in Porrentruy. During 0.5 snowfall days, in May, Porrentruy aggregates 9mm (0.35") of snow. Throughout the year, there are 49 snowfall days, and 745mm (29.33") of snow is accumulated.Daylight
In Porrentruy, the average length of the day in May is 15h and 7min.On the first day of the month, sunrise is at 06:13 and sunset at 20:43. On the last day of May, in Porrentruy, sunrise is at 05:38 and sunset at 21:19 CEST.
Sunshine
In May, the average sunshine is 8.5h.UV index
In May, the average daily maximum UV index in Porrentruy is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A maximum daily UV index of 4 during May morphs into the following directions:
Be vigilant - Preventing sunburn is recommended. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
What is the temperature in May in Porrentruy?
What is the average humidity in May in Porrentruy?
How many days does it rain in May in Porrentruy?
What is the last month it snows in Porrentruy?
What is the average length of the day in May in Porrentruy?
When is the sunrise / sunset in May in Porrentruy?
How many hours of sunshine does Porrentruy have in May?
How high is the UV index in May in Porrentruy?
Average temperature in May
Porrentruy, Switzerland
- Average high temperature in May: 16.7°C
The warmest months (with the highest average high temperature) are July and August (22.8°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in May: 6.5°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-2°C).
Average pressure in May
Porrentruy, Switzerland
- Average pressure in May: 1016.4mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The months with the lowest atmospheric pressure are April and November (1015.7mbar).
Average wind speed in May
Porrentruy, Switzerland
- Average wind speed in May: 9.8km/h
The windiest month (with the highest average wind speed) is February (12.3km/h).
The calmest month (with the lowest average wind speed) is August (7.7km/h).
Average humidity in May
Porrentruy, Switzerland
- Average humidity in May: 84%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (80%).
Average rainfall in May
Porrentruy, Switzerland
- Average rainfall in May: 81mm
The wettest month (with the highest rainfall) is June (94mm).
The driest month (with the least rainfall) is September (40mm).
Average rainfall days in May
Porrentruy, Switzerland
- Average rainfall days in May: 20.7 days
The month with the highest number of rainy days is June (20.9 days).
The month with the least rainy days is February (10.6 days).
Average snowfall in May
Porrentruy, Switzerland
- Average snowfall in May: 9mm
The month with the highest snowfall is February (170mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Porrentruy, Switzerland
- Average snowfall days in May: 0.5 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Porrentruy, Switzerland
- Average daylight in May: 15h and 1min
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 3min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).
Average sunshine days in May
Porrentruy, Switzerland
- Average sunshine days in May: 7.7 days
The month with the most sunshine days is October (14.8 days).
The month with the least sunshine days is June (6.7 days).
Average UV index in May
Porrentruy, Switzerland
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in May
Porrentruy, Switzerland
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in May
Porrentruy, Switzerland
- 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).
Porrentruy, Switzerland
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