14-day forecast — Brussels
Updated every hour
Tue · Today · 15 Sep
Sunny
28°
16°
1.3 mm
Wed · Tomorrow · 16 Sep
Sunny
19°
12°
0.4 mm
Thursday · 17 Sep
Cloudy
19°
11°
0.9 mm
Friday · 18 Sep
Sunny intervals
19°
11°
0.6 mm
Saturday · 19 Sep
Sunny intervals
20°
10°
17%
Sunday · 20 Sep
Cloudy
23°
14°
26%
Monday · 21 Sep
Sunny
23°
14°
15%
Tuesday · 22 Sep
Sunny
23°
14°
9%
Wednesday · 23 Sep
Sunny
24°
14°
9%
Thursday · 24 Sep
Sunny
23°
14°
11%
Friday · 25 Sep
Sunny
26°
15°
4%
Saturday · 26 Sep
Sunny
28°
16°
2%
Sunday · 27 Sep
Sunny
29°
17°
1%
Monday · 28 Sep
Sunny
30°
18°
3%
About Brussels
The Grand-Place, Art Nouveau and the best chips and chocolate in Europe — direct by Eurostar.
CountryBelgium
RegionBrussels-Capital
ContinentEurope
Time zoneEurope/Brussels (+02:00)
Latitude50.8503°
Longitude4.3517°
Air qualityGood (EAQI 13)
Climate in Brussels in September
Averages over 8 years · best time to visitBest time to visit Brussels: May–September. With good weather, September is a recommended month to visit.
| August | September | October | |
|---|---|---|---|
| Average temperature | ▼ 19°C | 16°C | ▼ 13°C |
| Highest temperature | ▼ 24°C | 20°C | ▼ 16°C |
| Lowest temperature | ▼ 15°C | 12°C | ▼ 10°C |
| Rainfall | ▲ 51 mm | 66 mm | ▲ 88 mm |
| Days with rain | → 11 d | 11 d | ▲ 13 d |
| Humidity | ▲ 68% | 76% | ▲ 83% |
| Sunshine hours per day | ▼ 11,0 h | 9,0 h | ▼ 5,9 h |
| Cloud cover | ▲ 24% | 29% | ▲ 45% |
| UV index (midday) | ▼ 8 | 5 | ▼ 3 |
| Day length | 14:29 | 12:37 | 10:42 |
| Our rating | Perfect | Good | Poor |
Temperature day by day in September mean + moving average
Rainfall day by day in September mm
UV index day by day in September midday value, clear-sky
Climate averages calculated from the ERA5 archive (8 years; sea temperature from marine reanalysis). UV estimated from solar elevation.
Other destinations in Europe
Data source
Global weather models — international forecasts
The weather for Brussels is based on global weather models (ECMWF, GFS) and national meteorological institutes around the world. Forecasts update every hour; current measurements every 15 minutes. For destinations with a larger time difference from the UK, local time is shown above.