Grimbergen monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Grimbergen

Grimbergen average temperature chart (Celsius) Grimbergen average temperature chart (Fahrenheit)
Average monthly temperatures in Grimbergen (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 4.7 6.3 9.4 13.4 17.7 20.7 22.4 22.3 19.4 14.3 9.1 5.9
°F 40.5 43.3 49 56.1 63.8 69.3 72.4 72.2 66.9 57.7 48.4 42.6

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Grimbergen monthly rainfall chart (mm) Grimbergen monthly rainfall chart (inches)
Average monthly rainfall in Grimbergen (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 66 52 70 55 69 77 75 63 60 72 79 75
inches 2.6 2.1 2.8 2.2 2.7 3 3 2.5 2.4 2.8 3.1 3
Rainy days 18 15 16 15 15 14 16 16 16 19 19 18

Average annual rainfall in Grimbergen: 868.434mm (341.9 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Grimbergen

Grimbergen average daily sunshine chart
Average daily sunshine Grimbergen
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.8 3.3 4.3 5.8 7.1 7.5 7.2 7.6 6.1 4.2 2.8 1.8

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Grimbergen average minimum / maximum temperatures (Celsius) Grimbergen average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Grimbergen (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -0.3 0.4 2 4.4 8.1 11.3 13 12.9 10.8 7.2 3.8 1
Max °C 4.9 6.4 9.6 13.6 17.9 21 22.7 22.6 19.6 14.5 9.3 6
Min °F 31.6 32.7 35.6 39.9 46.6 52.3 55.3 55.1 51.4 44.9 38.8 33.8
Max °F 36.1 38.1 42.4 48.2 55.4 61 64 63.9 59.4 51.4 43.7 38.3

Sea temperature

The graph below shows the average sea temperature.

Grimbergen average sea temperature chart (Celsius) Grimbergen average sea temperature chart (Fahrenheit)
Average sea temperature around Grimbergen in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.6 6.6 6.9 8.9 11.6 14.5 17.1 18.7 17.9 15.5 12.4 9.5
°F 45.7 43.9 44.5 47.9 52.9 58.2 62.9 65.6 64.2 59.9 54.3 49.1

Wind speed

The graph below shows the average wind speed.

Grimbergen average winspeed by month (km/h) Grimbergen average winspeed by month (mph)
Average wind speed in Grimbergen (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 16 16 15 14 13 13 12 13 14 16 17
mph 11 10 10 9 9 8 8 8 8 9 10 10

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Grimbergen relative humidity averages
Average relative humidity in Grimbergen
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
85% 81% 79% 71% 70% 71% 76% 76% 79% 82% 84% 86%

Other monthly averages

UV index Best time to go?

Grimbergen weather stats

Grimbergen weather statistics
Hottest month: July 22.4°C 72.3°F
Driest month: February 52mm 2ins
Sunniest month: August 7.6hrs
Coldest month: January 4.7°C 40.5°F
Wettest month: November 79mm 3.1ins
Warmest sea: August 18.7°C 65.7°F
Map showing location of Grimbergen (50.93409, 4.37213) Grimbergen map pin © Google

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