Brussels in Summer — Weather & What to Expect
Summer in Brussels (June, July, August) averages daytime highs of 22.8°C and lows of 14.0°C, with around 226.3mm of rain across the season (34 rainy days in total). It includes some of the best months of the year to visit (June, July, August).
In the northern hemisphere, summer in Brussels covers June, July, August.
Summer in Brussels month by month
| Month | High | Low | Rain | Rainy days | Rating |
|---|---|---|---|---|---|
| June | 22.7°C | 13.3°C | 74.5mm | 10 | 10/10 |
| July | 22.3°C | 13.7°C | 93.4mm | 11 | 10/10 |
| August | 23.5°C | 15.0°C | 58.4mm | 13 | 10/10 |
What to pack for Brussels in summer
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Light waterproof layer
Frequently Asked Questions
Is summer a good time to visit Brussels?
Summer in Brussels rates around 10/10 — excellent time to visit. Average highs are 22.8°C with 226.3mm of rain across the season.
How hot is Brussels in summer?
Daytime highs average 22.8°C (73.0°F) across June, July, August, with nights around 14.0°C.
What months are summer in Brussels?
Brussels is in the northern hemisphere, so summer covers June, July, August.
See also: best time to visit Brussels · Brussels annual climate · Brussels in spring · Brussels in autumn · Brussels in winter
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Once you know what summer in Brussels looks like, find out exactly what to pack for Brussels at 247PackingList. For currency, language and country facts, see the Belgium guide at 247CountryInfo.
Summer in Brussels — what to pack
Travel clothing layers
Pack layers — temperatures can vary significantly between day and night.
Check Price →Check clothing sizes in Belgium at 247Sizing before you shop.
More summer travel essentials
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.