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 May takes its course, Altena's average high-temperature registers at a still refreshing 16.1°C (61°F), closely aligning with the preceding month. An average minimum temperature of 8.4°C (47.1°F) is recorded during the month of May.Humidity
In Altena, Netherlands, the average relative humidity in May is 78%.Rainfall
In Altena, in May, it is raining for 14.3 days, with typically 21mm (0.83") of accumulated precipitation. In Altena, during the entire year, the rain falls for 179 days and collects up to 336mm (13.23") of precipitation.Snowfall
In Altena, snow does not fall in April through October.Daylight
In Altena, the average length of the day in May is 15h and 52min.On the first day of the month, sunrise is at 05:59 and sunset at 21:03. On the last day of May, in Altena, Netherlands, sunrise is at 05:14 and sunset at 21:49 CEST.
Sunshine
The average sunshine in May is 8.4h.UV index
In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
What are May temperatures in Altena?
What is the average humidity in May in Altena?
How many days does it rain in May in Altena?
When it does not snow in Altena?
How many hours of daylight does Altena have in May?
What time are sunrise and sunset in May in Altena?
How many hours of sunshine does Altena have in May?
What is the UV index reading in May in Altena?
Average temperature in May
Altena, Netherlands
- Average high temperature in May: 16.1°C
The warmest month (with the highest average high temperature) is August (21.3°C).
The month with the lowest average high temperature is January (4.4°C).
- Average low temperature in May: 8.4°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is February (1°C).
Average pressure in May
Altena, Netherlands
- Average pressure in May: 1016.4mbar
The months with the highest atmospheric pressure are May and September (1016.4mbar).
The month with the lowest atmospheric pressure is November (1011.1mbar).
Average wind speed in May
Altena, Netherlands
- Average wind speed in May: 15.5km/h
The windiest month (with the highest average wind speed) is December (21.2km/h).
The calmest month (with the lowest average wind speed) is July (14km/h).
Average humidity in May
Altena, Netherlands
- Average humidity in May: 78%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is April (77%).
Average rainfall in May
Altena, Netherlands
- Average rainfall in May: 21mm
The wettest month (with the highest rainfall) is June (41mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in May
Altena, Netherlands
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (11.5 days).
Average snowfall in May
Altena, Netherlands
- Average snowfall in May: 0mm
The month with the highest snowfall is January (17mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Altena, Netherlands
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (4.8 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
Altena, Netherlands
- Average daylight in May: 15h and 5min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in May
Altena, Netherlands
- Average sunshine days in May: 13.1 days
The months with the most sunshine days are March and April (14.8 days).
The month with the least sunshine days is December (9 days).
Average UV index in May
Altena, Netherlands
- 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, November and December (UV index 2).
Average cloud cover in May
Altena, Netherlands
- Average cloud cover in May: 45
The month with the most cloud cover is December (Cloud cover 68).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in May
Altena, Netherlands
- Average visibility in May: 9km
The months with the highest visibility are April and August (10km).
The months with the lowest visibility are January, February, March, May, June, July, September, October, November and December (9km).
Altena, Netherlands
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