Brussels weather by month & the best time to visit
🇧🇪 Belgium · city break · oceanic / maritime climate
The best time to visit Brussels is September — its sunniest month (Sunshine Score 78/100), with June and July close behind. Brussels averages about 1,609 hours of sunshine a year. Daytime highs around 20°C / 68°F and roughly 55 mm of rain in September.
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- Sun hours / year
- 1,609
- Sunniest month
- September
- Peak score
- 78/100
- Rain / year
- 763 mm
- Snow / year
- ≈18 cm
- Midday UV at peak
- 5 (moderate)
- Population
- 1.7M
- Elevation
- 36 m

When is the best time to visit Brussels?
For sunshine, the best time to visit Brussels is September, then June and July. The dullest month is January (0/100, 69 mm of rain). The full month-by-month picture is in the table below.
How sunny is Brussels?
Brussels isn't a sunny place by world standards: about 1,609 hours of sunshine a year. 78 Sunshine Score points separate September (78) from January (0), so the month you pick matters. It ranks #3 of 4 destinations in Belgium for annual sunshine, below the national median of 1,637 hours. The year's 763 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 5° / 41°F | 0° / 32°F | 69 mm | 0 |
| February | 0 | 6° / 43°F | 0° / 32°F | 60 mm | 1 |
| March | 13 | 10° / 50°F | 2° / 36°F | 55 mm | 2 |
| April | 47 | 15° / 59°F | 5° / 41°F | 38 mm | 3 |
| May | 71 | 19° / 66°F | 8° / 46°F | 59 mm | 4 |
| June | 76 | 22° / 72°F | 12° / 54°F | 63 mm | 5 |
| July | 74 | 24° / 75°F | 14° / 57°F | 75 mm | 5 |
| August | 73 | 23° / 73°F | 13° / 55°F | 79 mm | 4 |
| September | 78 | 20° / 68°F | 10° / 50°F | 55 mm | 3 |
| October | 45 | 15° / 59°F | 7° / 45°F | 63 mm | 2 |
| November | 13 | 10° / 50°F | 4° / 39°F | 69 mm | 1 |
| December | 0 | 6° / 43°F | 1° / 34°F | 78 mm | 0 |
See Brussels on the interactive sunshine globe →
Nearby places for sunshine
- Eindhoven Netherlands · 87 km · best in Sep · 1,665 h sun/yr
- Lille France · 104 km · best in Sep · 1,703 h sun/yr
- Ostend Belgium · 117 km · best in Jun · 1,769 h sun/yr
- Rotterdam Netherlands · 117 km · best in Jul · 1,668 h sun/yr
- Weeze Germany · 139 km · best in Sep · 1,580 h sun/yr
- Amsterdam Netherlands · 158 km · best in Jul · 1,629 h sun/yr
Nearest destinations
- Antwerp Belgium · 32 km · 1,664 h sun/yr · best in Sep
- Liège Belgium · 74 km · 1,608 h sun/yr · best in Sep
- Maastricht Netherlands · 90 km · 1,609 h sun/yr · best in Sep
Head-to-head
How Brussels compares month by month: Brussels vs Lille · Brussels vs Rotterdam · Brussels vs Eindhoven · Brussels vs Ostend · all comparisons
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