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
Heiloo notes an average high-temperature of a refreshing 13.9°C (57°F) in May, displaying minor variation from April. Heiloo indicates a consistently low-temperature of 10°C (50°F) during the nights of May.Humidity
In May, the average relative humidity is 78%.Rainfall
In Heiloo, in May, it is raining for 11.9 days, with typically 19mm (0.75") of accumulated precipitation. In Heiloo, Netherlands, during the entire year, the rain falls for 169.2 days and collects up to 339mm (13.35") of precipitation.Snowfall
In Heiloo, snow does not fall in April through November.Daylight
In Heiloo, the average length of the day in May is 15h and 47min.On the first day of May in Heiloo, sunrise is at 06:08 and sunset at 21:08. On the last day of the month, sunrise is at 05:24 and sunset at 21:53 CEST.
Sunshine
The average sunshine in May in Heiloo is 8.6h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In May, the maximum UV index of 4 suggests these recommendations:
Take necessary precautions - Defending against sun damage is advocated. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What is the usual temperature for Heiloo in May?
What is the average humidity in May in Heiloo?
How many days does it rain in May in Heiloo?
When it does not snow in Heiloo?
What is the average length of the day in May in Heiloo?
What time are sunrise and sunset in May in Heiloo?
How many hours of sunshine does Heiloo have in May?
What is the UV index reading in May in Heiloo?
Average temperature in May
Heiloo, Netherlands
- Average high temperature in May: 13.9°C
The warmest month (with the highest average high temperature) is August (19.9°C).
The months with the lowest average high temperature are January and February (5.8°C).
- Average low temperature in May: 10°C
The month with the highest average low temperature is August (16.6°C).
The coldest month (with the lowest average low temperature) is February (3.3°C).
Average pressure in May
Heiloo, Netherlands
- Average pressure in May: 1016.5mbar
The month with the highest atmospheric pressure is September (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed in May
Heiloo, Netherlands
- Average wind speed in May: 18.7km/h
The windiest month (with the highest average wind speed) is December (28.4km/h).
The calmest month (with the lowest average wind speed) is July (18km/h).
Average humidity in May
Heiloo, Netherlands
- Average humidity in May: 78%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is August (76%).
Average rainfall in May
Heiloo, Netherlands
- Average rainfall in May: 19mm
The wettest month (with the highest rainfall) is August (48mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in May
Heiloo, Netherlands
- Average rainfall days in May: 11.9 days
The month with the highest number of rainy days is August (17.2 days).
The month with the least rainy days is April (10.6 days).
Average snowfall in May
Heiloo, Netherlands
- Average snowfall in May: 0mm
The month with the highest snowfall is February (9mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Heiloo, Netherlands
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.7 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
Heiloo, Netherlands
- Average daylight in May: 15h and 5min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in May
Heiloo, Netherlands
- Average sunshine days in May: 16.2 days
The month with the most sunshine days is April (17.7 days).
The month with the least sunshine days is December (9.1 days).
Average UV index in May
Heiloo, Netherlands
- 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
Heiloo, Netherlands
- Average cloud cover in May: 42
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in May
Heiloo, Netherlands
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (10km).
The month with the lowest visibility is December (9km).
Heiloo, Netherlands
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