Belgium · 30-year monthly climate averages
Based on 30 years of climate data, the most comfortable months to visit Brussels are June, July and August, when daytime temperatures are agreeable and rainfall is relatively low.
Brussels sees its warmest weather in July, when daytime highs average around 23°C, and its coolest in January (around 6°C).
Annual precipitation totals roughly 837mm — December is typically the wettest month (~87mm) and April the driest (~47mm).
Rainfall is spread fairly evenly through the year, so no single season is dramatically wetter than the rest.
July is the sunniest month, with about 203 hours of sunshine.
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
Daily forecast highs vs the 30-year normal — last 60 days
Each bar is one day: orange above normal, blue below.
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 6° / 1°C | 76mm | 🤔 Fair |
| February | 7° / 2°C | 65mm | 🤔 Fair |
| March | 11° / 4°C | 59mm | 🤔 Fair |
| April | 15° / 6°C | 47mm | 👍 Good |
| May | 18° / 9°C | 60mm | 👍 Good |
| June | 21° / 12°C | 71mm | 🌟 Great |
| July | 23° / 14°C | 77mm | 🌟 Great |
| August | 23° / 14°C | 87mm | 🌟 Great |
| September | 20° / 11°C | 65mm | 🌟 Great |
| October | 15° / 8°C | 68mm | 👍 Good |
| November | 10° / 5°C | 76mm | 🤔 Fair |
| December | 7° / 2°C | 87mm | 🤔 Fair |
January in Brussels is cold, with average daytime highs around 6°C (43°F) and nighttime lows near 1°C (35°F). Expect roughly 76mm of precipitation spread over about 13 rainy days, with a moderate amount of rain.
☀️ About 59 hours of sunshine over the month (~2h/day).
🎒 What to pack — warm coat · sweaters and layers · scarf
February in Brussels is cold, with average daytime highs around 7°C (45°F) and nighttime lows near 2°C (35°F). Expect roughly 65mm of precipitation spread over about 12 rainy days, with a moderate amount of rain.
☀️ About 73 hours of sunshine over the month (~2h/day).
🎒 What to pack — warm coat · sweaters and layers · scarf
March in Brussels is chilly, with average daytime highs around 11°C (52°F) and nighttime lows near 4°C (38°F). Expect roughly 59mm of precipitation spread over about 11 rainy days, with little rainfall.
☀️ About 126 hours of sunshine over the month (~4h/day).
🎒 What to pack — jacket or coat · long-sleeve layers
April in Brussels is mild, with average daytime highs around 15°C (59°F) and nighttime lows near 6°C (43°F). Expect roughly 47mm of precipitation spread over about 9 rainy days, with little rainfall.
☀️ About 171 hours of sunshine over the month (~6h/day).
🎒 What to pack — light jacket · layers for cool evenings
May in Brussels is mild, with average daytime highs around 18°C (65°F) and nighttime lows near 9°C (49°F). Expect roughly 60mm of precipitation spread over about 10 rainy days, with little rainfall.
☀️ About 198 hours of sunshine over the month (~7h/day).
🎒 What to pack — light jacket · layers for cool evenings
June in Brussels is pleasantly warm, with average daytime highs around 21°C (70°F) and nighttime lows near 12°C (54°F). Expect roughly 71mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
☀️ About 199 hours of sunshine over the month (~7h/day).
🎒 What to pack — light layers · comfortable walking shoes
July in Brussels is pleasantly warm, with average daytime highs around 23°C (74°F) and nighttime lows near 14°C (57°F). Expect roughly 77mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
☀️ About 203 hours of sunshine over the month (~7h/day).
🎒 What to pack — light layers · comfortable walking shoes
August in Brussels is pleasantly warm, with average daytime highs around 23°C (73°F) and nighttime lows near 14°C (57°F). Expect roughly 87mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
☀️ About 192 hours of sunshine over the month (~6h/day).
🎒 What to pack — light layers · comfortable walking shoes
September in Brussels is pleasantly warm, with average daytime highs around 20°C (67°F) and nighttime lows near 11°C (52°F). Expect roughly 65mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
☀️ About 155 hours of sunshine over the month (~5h/day).
🎒 What to pack — light layers · comfortable walking shoes
October in Brussels is mild, with average daytime highs around 15°C (59°F) and nighttime lows near 8°C (47°F). Expect roughly 68mm of precipitation spread over about 11 rainy days, with a moderate amount of rain.
☀️ About 113 hours of sunshine over the month (~4h/day).
🎒 What to pack — light jacket · layers for cool evenings
November in Brussels is chilly, with average daytime highs around 10°C (50°F) and nighttime lows near 5°C (40°F). Expect roughly 76mm of precipitation spread over about 12 rainy days, with a moderate amount of rain.
☀️ About 66 hours of sunshine over the month (~2h/day).
🎒 What to pack — jacket or coat · long-sleeve layers
December in Brussels is cold, with average daytime highs around 7°C (44°F) and nighttime lows near 2°C (36°F). Expect roughly 87mm of precipitation spread over about 14 rainy days, with a moderate amount of rain.
☀️ About 49 hours of sunshine over the month (~2h/day).
🎒 What to pack — warm coat · sweaters and layers · scarf