May weather forecast and climate
Robertville, Belgium

Weather in May

The last month of the spring, May, is a mild month in Robertville, Belgium, with average temperature ranging between min 5.7°C (42.3°F) and max 15.2°C (59.4°F).

Temperature

In Robertville, the average high-temperature is practically the same as in April - a mild 15.2°C (59.4°F). In Robertville, the average low-temperature is 5.7°C (42.3°F).

Humidity

In May, the average relative humidity in Robertville is 84%.

Rainfall

In Robertville, it is raining for 13.9 days, with typically 37mm (1.46") of accumulated precipitation. Throughout the year, in Robertville, there are 143.6 rainfall days, and 509mm (20.04") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.8 snowfall days, Robertville aggregates 6mm (0.24") of snow. Throughout the year, there are 49 snowfall days, and 641mm (25.24") of snow is accumulated.

Daylight

In May, the average length of the day in Robertville is 15.5h.

Sunshine

The average sunshine in Robertville, Belgium, is 7.4h.

UV index

In Robertville, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in May in Robertville?

In May, the average high-temperature is 15.2°C (59.4°F), and the average low-temperature is 5.7°C (42.3°F).

What is the average humidity in May in Robertville?

In May, the average relative humidity in Robertville is 84%.

How many days does it rain in May in Robertville?

In Robertville, during May, the rain falls for 13.9 days and regularly aggregates up to 37mm (1.46") of precipitation.

What is the last month it snows in Robertville?

May is the last month it regularly snows in Robertville, Belgium. During 0.8 snowfall days, in May, Robertville aggregates 6mm (0.24") of snow.

How many hours of daylight does Robertville have in May?

In Robertville, Belgium, the average length of the day in May is 15.5h.

How long on average sun shines in May in Robertville?

In Robertville, the average sunshine in May is 7.4h.

What is the UV index reading in May in Robertville?

In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in May
Robertville, Belgium

Average temperature in May - Robertville, Belgium
  • Average high temperature in May: 15.2°C

The warmest months (with the highest average high temperature) are July and August (20.5°C).
The month with the lowest average high temperature is January (2.5°C).

  • Average low temperature in May: 5.7°C

The month with the highest average low temperature is August (11.3°C).
The coldest month (with the lowest average low temperature) is January (-1.8°C).

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Average pressure in May
Robertville, Belgium

Average pressure in May - Robertville, Belgium
  • Average pressure in May: 1016.1mbar

The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1013.5mbar).

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Average wind speed in May
Robertville, Belgium

Average wind speed in May - Robertville, Belgium
  • Average wind speed in May: 11.5km/h

The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is August (10.5km/h).

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Average humidity in May
Robertville, Belgium

Average humidity in May - Robertville, Belgium
  • Average humidity in May: 84%

Months with the highest relative humidity are January and December (92%).
The month with the lowest relative humidity is April (80%).

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Average rainfall in May
Robertville, Belgium

Average rainfall in May - Robertville, Belgium
  • Average rainfall in May: 37mm

The wettest month (with the highest rainfall) is December (61mm).
The driest month (with the least rainfall) is April (26mm).

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Average rainfall days in May
Robertville, Belgium

Average rainfall days in May - Robertville, Belgium
  • Average rainfall days in May: 13.9 days

Months with the highest number of rainy days are June and July (14.7 days).
The month with the least rainy days is February (7.5 days).

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Average snowfall in May
Robertville, Belgium

Average snowfall in May - Robertville, Belgium
  • Average snowfall in May: 6mm

The month with the highest snowfall is February (166mm).
Months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in May
Robertville, Belgium

Average snowfall days in May - Robertville, Belgium
  • Average snowfall days in May: 0.8 days

The month with the highest number of snowfall days is January (12.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Robertville, Belgium

Average daylight in May / Average sunshine in May - Robertville, Belgium
  • Average daylight in May: 15.5h

The month with the longest days is June (Average daylight: 16.4h).
The month with the shortest days is December (Average daylight: 8.1h).

  • Average sunshine in May: 7.4h

The month with the most sunshine is August (Average sunshine: 8.5h).
The month with the least sunshine is December (Average sunshine: 2.5h).

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Average sunshine days in May
Robertville, Belgium

Average sunshine days in May - Robertville, Belgium
  • Average sunshine days in May: 15.1 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is February (11.5 days).

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Average UV index in May
Robertville, Belgium

Average UV index in May - Robertville, Belgium
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 5).
Months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in May
Robertville, Belgium

Average cloud cover in May - Robertville, Belgium
  • Average cloud cover in May: 54

The month with the most cloud cover is December (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 46).

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Average visibility in May
Robertville, Belgium

Average visibility in May - Robertville, Belgium
  • Average visibility in May: 8km

The month with the highest visibility is April (9km).
The month with the lowest visibility is January (7km).

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