Brussels in May
6.8out of 10
Possible, with caveats
Mild: highs around 18°C. Frequent rain: about 12 rainy days.
18°CAvg high
9°CAvg low
12Rainy days (62 mm)
15:18 hDaylight
06:00Sunrise · 21:18 Sunset
Why this score
- Mild: highs around 18°C
- Frequent rain: about 12 rainy days
- Rain varies a lot between years (±4.3 days)
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in May varies a lot between years (±4.3 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 6°C | 1°C | 63 mm | 12 | – | – | 4.8 |
| February | 7°C | 1°C | 59 mm | 12 | – | – | 5.0 |
| March | 10°C | 3°C | 56 mm | 12 | – | – | 5.6 |
| April | 14°C | 5°C | 48 mm | 12 | – | – | 6.3 |
| May | 18°C | 9°C | 62 mm | 12 | – | – | 6.8 |
| June | 21°C | 12°C | 65 mm | 12 | – | – | 7.3 |
| July | 23°C | 14°C | 70 mm | 12 | – | – | 7.5 |
| August | 22°C | 13°C | 73 mm | 12 | – | – | 7.5 |
| September | 19°C | 11°C | 54 mm | 11 | – | – | 7.2 |
| October | 15°C | 8°C | 58 mm | 11 | – | – | 6.4 |
| November | 10°C | 5°C | 64 mm | 12 | – | – | 5.5 |
| December | 6°C | 2°C | 74 mm | 13 | – | – | 4.8 |
Frequently asked questions
How hot is Brussels in May?
Daytime highs average 18°C and nights about 9°C.
When is the best time to visit Brussels?
The best months are July, August, June, September.