Best time to visit · Belgium
Best time to visit Brussels
Brussels averages 27 just-right days a year; no month is reliably just right, and August comes closest. Most other days miss by being too cool.
(70 to 80°F, dry, sunny)
(45 to 65°F, dry)
(80 to 92°F, bright)
Brussels weather by month
Bars: share of each month's days that are just right (number = days). Below: average daily high. Outlined bars are the best months.
- Just right 27
- Too cool 278
- Too hot 14
- Too muggy 13
- Too gray 33
When to visit Brussels
Brussels rarely hits the 70 to 80°F, dry and sunny window; August comes closest, with 7 just-right days. January, February, March, April, May, October, November and December are mostly too cool, with average highs of 44 to 66°F (19°C).
Climate table
| Month | Avg high | Dew point | Cloud cover | Just-right days |
|---|---|---|---|---|
| January | 44°F (7°C) | 36°F (2°C) | 81% | 0 |
| February | 46°F (8°C) | 36°F (2°C) | 77% | 0 |
| March | 52°F (11°C) | 39°F (4°C) | 74% | 0 |
| April | 60°F (16°C) | 42°F (6°C) | 65% | 1 |
| May | 66°F (19°C) | 47°F (8°C) | 65% | 3 |
| June | 71°F (22°C) | 53°F (12°C) | 63% | 5 |
| July | 74°F (23°C) | 56°F (13°C) | 57% | 7 |
| August | 74°F (23°C) | 56°F (13°C) | 56% | 7 |
| September | 68°F (20°C) | 53°F (12°C) | 65% | 4 |
| October | 60°F (16°C) | 47°F (8°C) | 71% | 1 |
| November | 51°F (11°C) | 42°F (6°C) | 80% | 0 |
| December | 45°F (7°C) | 37°F (3°C) | 86% | 0 |
How Brussels compares
Brussels gets 27 just-right days a year with our default window; the median big US city gets 33. On muggy days: 13. On gray days: 33.
Places with a similar climate
Nearby
Brussels averages 27 just-right days a year (70 to 80°F highs, dry, mostly sunny), according to Goldilocks Map: https://goldilocksmap.com/belgium/brussels/Set your own perfect weather on the map →
Numbers are expected days in a typical year from 1991 to 2020 climate normals (TerraClimate; cloud cover from CHELSA), on a grid about 35 km wide. Checked against 10 years of daily records at 28 NOAA weather stations: typical error about 10 days a year. How it works. Updated 2026-10-07.