Grimbergen weather in September (Flemisch Brabantine, Belgium)

Planning a trip to Grimbergen in September? This guide provides all the details you need.

In Grimbergen the weather in September is generally perfect, characterized by pleasant temperatures and moderate rainfall. Daytime temperatures hover around 21°C, while nights can cool down to about 11°C.

Grimbergen in September usually receives moderate rainfall, averaging around 61 mm for the month. Rain is expected on roughly 16 days.

The city usually sees around 142 hours of sunlight, indicating a moderately sunny period.

So this is a great month to visit if you prefer dry days with pleasant temperatures. June, July, August and September typically offer the most optimal weather. In contrast, January, February and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Grimbergen climate page with graphs.

 

Grimbergen, monthly averages in September

Min Temperature 11°C  

Max Temperature 21°C  

Chance of Rain 52%  

Precipitation 61 mm  

Rainy days 16 days  

Humidity 77% *  

Windspeed 11 km/h *  

Sunshine 142 hours *  

Percentage Sunshine *  

* Data from: Brussels, Belgium (8 KM, 5 Miles).

Where to go in Belgium in September

Find out more about the weather in Belgium in September and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Grimbergen in September?

For visitors traveling to Grimbergen, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Swimming

6/10

Cycling

10/10

Walking

10/10

Camping

8/10

Outdoor sports

10/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Grimbergen.

Our site offers climate and forecast data for every country in the world. Are you going to Belgium? On this website you can find historical weather averages for many cities in Belgium. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.