May weather forecast
Rotselaar, Belgium

May

Weather in May

The last month of the spring, May, is an enjoyable month in Rotselaar, Belgium, with an average temperature varying between 8.3°C (46.9°F) and 17.5°C (63.5°F).

Temperature

Rotselaar commences May with an average high-temperature of an enjoyable 17.5°C (63.5°F), maintaining a close resemblance to the previous month. Rotselaar experiences an average nighttime temperature of 8.3°C (46.9°F) in the month of May.

Humidity

The average relative humidity in May is 78%.

Rainfall

In Rotselaar, during May, the rain falls for 13.8 days and regularly aggregates up to 27mm (1.06") of precipitation. Throughout the year, there are 162 rainfall days, and 393mm (15.47") of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Rotselaar, the average length of the day in May is 15h and 34min.
On the first day of May, sunrise is at 06:13 and sunset at 21:03. On the last day of the month, sunrise is at 05:32 and sunset at 21:45 CEST.

Sunshine

In May, the average sunshine is 8.4h.

UV index

In Rotselaar, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 4 in May translates into these instructions:
Act with care - The suggestion to avoid sunburn is emphasized. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

What are the temperatures in May?
An average high-temperature, in May, in Rotselaar, is 17.5°C (63.5°F) and the average low-temperature is 8.3°C (46.9°F).
What is the average humidity in May?
In Rotselaar, the average relative humidity in May is 78%.
How much does it rain in May?
In May, the rain falls for 13.8 days. Throughout May, 27mm (1.06") of precipitation is accumulated.
When it does not snow?
April through October are months without snowfall.
What is the average length of the day in May?
The average day length in May is 15h and 34min.
When are sunrise and sunset in May?
In May, on the first day of the month, sunrise is at 06:13 and sunset at 21:03. On the last day of the month, sunrise is at 05:32 and sunset at 21:45 CEST.
How long on average sun shines in May?
In May, the average sunshine duration is 8.4h.
How high is the UV index in May?
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May
Rotselaar, Belgium
  • Average high temperature in May: 17.5°C

The warmest month (with the highest average high temperature) is July (23.2°C).
The month with the lowest average high temperature is January (4.9°C).

  • Average low temperature in May: 8.3°C

The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (1°C).

Average pressure in May
Rotselaar, Belgium
  • Average pressure in May: 1016.4mbar

The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).

Average wind speed in May
Rotselaar, Belgium
  • Average wind speed in May: 12.4km/h

The windiest month (with the highest average wind speed) is December (18.1km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).

Average humidity in May
Rotselaar, Belgium
  • Average humidity in May: 78%

The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (74%).

Average rainfall in May
Rotselaar, Belgium
  • Average rainfall in May: 27mm

The wettest month (with the highest rainfall) is December (57mm).
The driest month (with the least rainfall) is September (16mm).

Average rainfall days in May
Rotselaar, Belgium
  • Average rainfall days in May: 13.8 days

The month with the highest number of rainy days is December (18.5 days).
The month with the least rainy days is September (8.5 days).

Average snowfall in May
Rotselaar, Belgium
  • Average snowfall in May: 0mm

The month with the highest snowfall is February (41mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in May
Rotselaar, Belgium
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (5 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
Rotselaar, Belgium
  • Average daylight in May: 15h and 4min

The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).

  • 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 48min).

Average sunshine days in May
Rotselaar, Belgium
  • Average sunshine days in May: 15.5 days

The month with the most sunshine days is September (20.1 days).
The month with the least sunshine days is February (8.7 days).

Average UV index in May
Rotselaar, Belgium
  • 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
Rotselaar, Belgium
  • Average cloud cover in May: 45

The month with the most cloud cover is December (Cloud cover 62).
The months with the least cloud cover are April and August (Cloud cover 41).

Average visibility in May
Rotselaar, Belgium
  • Average visibility in May: 9km

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).

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