easeweather.com
Wallonia (Liège)
AnderlechtAntwerpenBrugeletteBruggeBrusselsCharleroiGentHasseltLeuvenLiègeNamurOstendSchaerbeekTournai More Locations
Belgium weather

Weather in Wallonia for September 2025

Your guide to Wallonia weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Wallonia at the beginning of September is 25.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.3 °C by the end of September.

    • Rain 🌧️

  • Wallonia experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 84.3 mm.

Average dry days
5
Dry days
Average rainy days
25
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/11°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Wallonia Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
24°
2
Sunny
25°
3
Sunny
25°
4
Partly cloudy
24°
5
Patchy rain possible
27°
6
Partly cloudy
25°
7
Sunny
27°
8
Sunny
25°
9
Moderate or heavy rain shower
22°
10
Moderate or heavy rain shower
22°
11
Patchy rain possible
22°
12
Partly cloudy
22°
13
Sunny
19°
14
Moderate or heavy rain shower
19°
15
Moderate or heavy rain shower
21°
16
Patchy rain possible
19°
17
Patchy rain possible
21°
18
Partly cloudy
21°
19
Partly cloudy
20°
20
Overcast
20°
21
Overcast
20°
22
Sunny
20°
23
Light rain shower
19°
24
Patchy rain possible
18°
25
Sunny
19°
26
Cloudy
19°
27
Heavy rain at times
17°
28
Patchy rain possible
16°
29
Moderate or heavy rain shower
16°
30
Partly cloudy
16°

What’s the Weather Like in Wallonia This September?

Discover the average temperatures and weather trends across Wallonia’s cities this September.
Patchy rain possibleLiège21 °C / 11 °CPatchy rain possibleCharleroi20 °C / 12 °CPatchy rain possibleNamur20 °C / 11 °CPatchy rain possibleBrugelette19 °C / 11 °CPatchy rain possibleTournai25 °C / 10 °CMore Locations

Temperatures trend during September in Wallonia

See the weather trend as well as the moving average line

September weather in Wallonia day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 24° /12° 9.5 mm 6
2 Sept. Sunny
Sunny
 25° /14° 3.2 mm 6
3 Sept. Sunny
Sunny
 25° /13° 0.7 mm 6
4 Sept. Partly cloudy
Partly cloudy
 24° /12° 1.6 mm 6
5 Sept. Patchy rain possible
Patchy rain possible
 27° /13° 2.7 mm 7
6 Sept. Partly cloudy
Partly cloudy
 25° /13° 3.7 mm 6
7 Sept. Sunny
Sunny
 27° /14° 1.6 mm 7
8 Sept. Sunny
Sunny
 25° /14° 2 mm 6
9 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 22° /14° 5.3 mm 5
10 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 22° /13° 4.3 mm 5
11 Sept. Patchy rain possible
Patchy rain possible
 22° /12° 4.8 mm 5
12 Sept. Partly cloudy
Partly cloudy
 22° /11° 1.7 mm 6
13 Sept. Sunny
Sunny
 19° /10° 2.8 mm 5
14 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 19° /10° 5.4 mm 5
15 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 21° /10° 2 mm 5
16 Sept. Patchy rain possible
Patchy rain possible
 19° /9° 0.9 mm 5
17 Sept. Patchy rain possible
Patchy rain possible
 21° /11° 4.2 mm 5
18 Sept. Partly cloudy
Partly cloudy
 21° /11° 3.2 mm 5
19 Sept. Partly cloudy
Partly cloudy
 20° /10° 0.4 mm 5
20 Sept. Overcast
Overcast
 20° /10° 0.2 mm 5
21 Sept. Overcast
Overcast
 20° /9° 1.4 mm 5
22 Sept. Sunny
Sunny
 20° /8° 0.8 mm 5
23 Sept. Light rain shower
Light rain shower
 19° /9° 1.2 mm 4
24 Sept. Patchy rain possible
Patchy rain possible
 18° /9° 2.3 mm 4
25 Sept. Sunny
Sunny
 19° /10° 4.1 mm 5
26 Sept. Cloudy
Cloudy
 19° /11° 4.6 mm 5
27 Sept. Heavy rain at times
Heavy rain at times
 17° /9° 4.3 mm 4
28 Sept. Patchy rain possible
Patchy rain possible
 16° /7° 2.3 mm 4
29 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /7° 2.2 mm 4
30 Sept. Partly cloudy
Partly cloudy
 16° /6° 0.6 mm 4
Next
Important Notice
Our weather forecast for Wallonia in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Wallonia forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

Wallonia in September - FAQ

What are the expected maximum and minimum temperatures in Wallonia during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Wallonia during September?
Moderate rainfall is anticipated in Wallonia during September, with a total of 84.3 mm spread over approximately 25 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Wallonia during September?
The average wind speed in Wallonia during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Wallonia

Explore the daily rainfall trends and prepare for Wallonias September weather 💧

UV exposure in Wallonia during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Provinces in Wallonia
Select a province for an accurate weather forecast
Province de LiègeProvince de NamurProvince du Hainaut
Top locations in Wallonia
Select a location for an accurate weather forecast
BrugeletteCharleroiLiègeNamurTournai
More Locations

Quick links

More Wallonia weather pages
You are here
Location coordinates Where is Wallonia?

Get accurate weather forecasts for Wallonia, located at latitude 50.634 and longitude 5.567. Stay updated with localized weather information tailored for Wallonia.

Found a mistake?
We appreciate your attention to details. Tell us here.