Weather by month for Brussels, the best months to go and how Belgium's regions differ, scored from 10 years of climate data.
Jun, Jul, Aug, Sep
The highest month scores: comfortable temperatures, little rain and plenty of sun.
Highs 20°C to 23°C · 10–12 rain days
May
Still good weather, just not quite the top months.
Highs 18°C · 12 rain days
Jan, Feb, Mar, Nov, Dec
The weakest weather of the year: too hot, too cold or too wet.
Highs 6°C to 11°C · 12–14 rain days
Weather by month
Average highs and lows, rain days, sunshine and our month score out of 10.
| Month | High / low | Rain days | Sunshine | Score |
|---|---|---|---|---|
| January | 6°C / 2°C | 14 days (75 mm) | 3.6 h/day | 1.0/10 |
| February | 8°C / 2°C | 12 days (67 mm) | 5.4 h/day | 2.0/10 |
| March | 11°C / 3°C | 14 days (71 mm) | 7.0 h/day | 3.4/10 |
| April | 14°C / 5°C | 11 days (47 mm) | 9.7 h/day | 5.7/10 |
| May | 18°C / 9°C | 12 days (63 mm) | 10.9 h/day | 7.5/10 |
| Best month: June | 22°C / 13°C | 10 days (71 mm) | 11.3 h/day | 7.8/10 |
| Best month: July | 23°C / 14°C | 11 days (68 mm) | 11.4 h/day | 7.7/10 |
| Best month: August | 23°C / 15°C | 12 days (59 mm) | 10.7 h/day | 7.6/10 |
| Best month: September | 20°C / 12°C | 11 days (65 mm) | 9.0 h/day | 7.7/10 |
| October | 16°C / 9°C | 12 days (71 mm) | 6.0 h/day | 5.7/10 |
| November | 10°C / 5°C | 13 days (69 mm) | 4.5 h/day | 2.5/10 |
| December | 8°C / 3°C | 14 days (75 mm) | 3.2 h/day | 1.0/10 |
Figures for Brussels; the country's best months are weighted across its cities. Best months are highlighted. How we score months
Month by month
6°C / 2°C · 14 rain days · 3.6 h sun
Days are cold and short, with a high of just 6.3°C and only 3.6 hours of sun. Rain falls on about 14 days, making this one of the wettest and greyest times of year. The score of 1 reflects tough weather with little daylight. New Year's Day falls on the 1st.
8°C / 2°C · 12 rain days · 5.4 h sun
Temperatures creep up slightly to a high of 8.4°C, though rain still falls on around 12 days. Sun hours rise to 5.4, a small improvement. The score stays low at 2, so this remains a cold, damp month overall.
11°C / 3°C · 14 rain days · 7.0 h sun
Highs reach 10.9°C but rain is still frequent, with 13.6 wet days. Sun hours climb to 7, hinting at spring. The score of 3.4 marks this as a transitional month, cool and often wet.
14°C / 5°C · 11 rain days · 9.7 h sun
Weather improves clearly: highs hit 14.1°C and rain drops to 11 days, the lowest rainfall total of the year at 47mm. Sun hours jump to 9.7. The score of 5.7 marks an ok month, with Good Friday, Easter Sunday and Easter Monday all falling in early April.
18°C / 9°C · 12 rain days · 10.9 h sun
Highs reach 18.2°C with 10.9 hours of sun and rain on about 12 days. This is one of the best-scoring months at 7.5. Labour Day falls on the 1st, with Ascension Day and the following day on 14 and 15 May.
22°C / 13°C · 10 rain days · 11.3 h sun
This is the top-scoring month at 7.8. Highs average 22°C with 11.3 hours of sunshine daily, though rain still falls on roughly 10 days. Whit Monday lands on 25 June this year.
23°C / 14°C · 11 rain days · 11.4 h sun
Summer peaks with a high of 23°C and 11.4 hours of sun, the most of any month. Rain falls on 11 days. The score is 7.7, and Belgian National Day is celebrated on 21 July.
23°C / 15°C · 12 rain days · 10.7 h sun
The hottest month, with highs of 23.4°C, though sun hours dip slightly to 10.7. Rain is lighter, with 59mm across 11.6 days. The score holds at 7.6, and Assumption Day falls on 15 August.
20°C / 12°C · 11 rain days · 9.0 h sun
Highs cool to 20.1°C with 9 hours of sun and rain on about 11 days. The score stays high at 7.7, making this a strong late-summer option with fewer extreme temperatures than midsummer.
16°C / 9°C · 12 rain days · 6.0 h sun
Highs drop to 15.6°C and sun hours fall to 6. Rain returns to 12.4 days. The score of 5.7 marks an ok month as autumn sets in, cooler and greyer than September.
10°C / 5°C · 13 rain days · 4.5 h sun
Highs fall to 10.3°C with just 4.5 hours of sun and rain on 13.2 days. The score of 2.5 reflects a dark, wet month. All Saints' Day falls on 1 November and Armistice Day on the 11th.
8°C / 3°C · 14 rain days · 3.2 h sun
The coldest and darkest stretch, with highs of just 7.8°C and only 3.2 hours of sun. Rain falls on 14.1 days, tying January as the wettest month. The score of 1 reflects harsh winter weather, though Christmas Day on the 25th and St. Stephen's Day on the 26th bring holiday events.
Regional differences
Average daytime high each month, coloured by that city's own month score.
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Brussels | 6°C | 8°C | 11°C | 14°C | 18°C | 22°C | 23°C | 23°C | 20°C | 16°C | 10°C | 8°C |
| Ghent | 7°C | 9°C | 11°C | 14°C | 18°C | 22°C | 23°C | 23°C | 20°C | 16°C | 11°C | 8°C |
| Liège | 6°C | 8°C | 11°C | 14°C | 18°C | 22°C | 23°C | 23°C | 20°C | 15°C | 10°C | 7°C |
| Bruges | 7°C | 9°C | 11°C | 14°C | 17°C | 21°C | 22°C | 23°C | 20°C | 16°C | 11°C | 9°C |
| Namur | 5°C | 8°C | 10°C | 14°C | 18°C | 22°C | 23°C | 23°C | 20°C | 15°C | 10°C | 7°C |
Best Good OK Tough weather
By trip type
City sightseeing
June to September suit city breaks best. In Brussels, highs reach 20.1–23.4°C and you get 9–11.4 hours of sun a day, but rain still falls on 10.2–11.6 days each month, so pack an umbrella.
Hiking & nature
June is the best month for hiking, with the fewest rain days in Brussels (10.2), 11.3 hours of sun and highs of 22°C. It is not a dry month, though, with 71 mm of rain, so bring waterproofs.
Events calendar
Public holidays: New Year's Day (1 Jan)
Public holidays: Good Friday (3 Apr), Easter Sunday (5 Apr), Easter Monday (6 Apr)
Public holidays: Labour Day (1 May), Ascension Day (14 May), Day after Ascension Day (15 May), Whit Monday (25 May)
Public holidays: Belgian National Day (21 Jul)
Public holidays: Assumption Day (15 Aug)
Public holidays: All Saints' Day (1 Nov), Armistice Day (11 Nov)
Public holidays: Christmas Day (25 Dec), St. Stephen's Day (26 Dec)
Keep planning
FAQ
Yes, August is one of the best months to visit Belgium, with a score of 7.6 out of 10. In Brussels, highs average 23.4°C and lows 14.6°C, the warmest of the year. Pack for rain anyway: it still falls on about 11.6 days, with 59 mm in the month.
June is the best month, with the top score of 7.8. July and September follow closely at 7.7. June in Brussels has the fewest rain days of the year, at 10.2, and highs of 22°C. September is a good choice if you want warm days, with highs of 20.1°C, after the peak summer months.
No, not for the weather. December scores just 1 and is a month to avoid. Highs in Brussels average only 7.8°C and lows 3.4°C. Rain falls on about 14.1 days, with 75 mm in total. Together with January, that makes it the wettest month by rainfall.
Both are acceptable but not ideal, and both score 5.7. April is cooler, with highs of 14.1°C in Brussels. It is also the driest month, with 47 mm of rain over 11 days. October is milder, with highs of 15.6°C, but wetter: 71 mm of rain over 12.4 days.
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