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.
Country Belgium
Region Brussels-Capital
Continent Europe
Time zone Europe/Brussels (+02:00)
Latitude 50.8503°
Longitude 4.3517°
Air quality Good (EAQI 13)
🗺️ Brussels and what is nearby
Forecast day by day — press play
▶
Markers show the daytime high for the selected day. Tap a marker for Brussels detail; two fingers to move and zoom the map.
Climate in Brussels in December
Averages over 8 years · best time to visit
Best time to visit Brussels : May–September . With poor weather, December is a possible month to visit.
Photo: Wikimedia
November
December
January
Average temperature
▼ 8°C
5°C
▼ 4°C
Highest temperature
▼ 10°C
8°C
▼ 6°C
Lowest temperature
▼ 5°C
3°C
▼ 2°C
Rainfall
▲ 65 mm
75 mm
▲ 81 mm
Days with rain
▲ 13 d
14 d
→ 14 d
Humidity
▲ 87%
88%
▼ 86%
Sunshine hours per day
▼ 4,4 h
3,0 h
▲ 3,4 h
Cloud cover
▲ 51%
63%
▼ 60%
UV index (midday)
▼ 2
1
→ 1
Day length
8:58
8:02
8:31
Our rating
Poor
Poor
Poor
Temperature day by day in December mean + moving average
2° 4° 6° 8° 10° 1 6 11 16 21 26 31
Rainfall day by day in December mm
0 2.6 5.1 1 6 11 16 21 26 31
UV index day by day in December midday value, clear-sky
0 5.5 11 1 6 11 16 21 26 31
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.