Belgium Brussels Weather in June — Climate Guide
June in Brussels is very-high
June is very-high for Brussels.
June brings Brussels' longest days and warm but rarely hot summer weather — a pleasant, festival-filled month. It averages 21°C/12°C with 70mm of rain, mostly in showers and the odd summer thunderstorm.
Daylight is at its peak (sunset close to 10pm), giving long evenings for terraces, parks, and walking. The Ommegang, a grand historic costumed pageant re-enacting a 16th-century procession, takes place on the Grand-Place around late June into early July (ticketed for the main shows). Music festivals like Couleur Café add to the season.
Travel score
Brussels June Weather Stats
Avg High
21°C
Avg Low
12°C
Rainy Days
14
70mm total
Sunshine
6.6h
Daily avg
Humidity
70%
comfortable
UV Index
6
High
Wind
13 km/h
Gusts 26
Crowds
Busy
At attractions
June Sunrise & Sunset
Air Quality
PM2.5
15 μg/m³
PM10
24 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
21°C
Nighttime
12°C
Humidity and wind affect how the actual temperature feels.
Wind
13 km/h
Max gust 26 km/h
Activities Recommended for June
June Travel Pros & Cons
Pros
- Longest days of the year
- Warm but comfortable weather
- Ommegang pageant on the Grand-Place
- Festival and terrace season
Cons
- High-season crowds and prices
- Showers and thunderstorms still possible
- Bruges very busy
- Book ahead
June Events & Festivals
- Longest days of the year (solstice June 21)
- Brussels Ommegang pageant (late June-early July) — historic procession
- Couleur Café festival (around late June)
- Outdoor and festival season
Brussels in June — Full Picture
June brings Brussels' longest days and warm but rarely hot summer weather — a pleasant, festival-filled month. It averages 21°C/12°C with 70mm of rain, mostly in showers and the odd summer thunderstorm.
Daylight is at its peak (sunset close to 10pm), giving long evenings for terraces, parks, and walking. The Ommegang, a grand historic costumed pageant re-enacting a 16th-century procession, takes place on the Grand-Place around late June into early July (ticketed for the main shows). Music festivals like Couleur Café add to the season.
The weather is at its best for the year, though 'best' in Brussels still means changeable — sunshine and showers can trade off within a day, so carry a light rain layer even when it's warm.
It's high season, so attractions and day-trip towns (Bruges especially) are busier and prices are firm — book ahead.
Note: heat waves are uncommon but possible; otherwise expect comfortable temperatures rather than Mediterranean heat.
What to Wear & What to Pack
Mild early summer — around 21°C/12°C with the year's longest days. Light clothing with a layer for cooler evenings and the occasional shower. Comfortable, but rarely hot.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
14.3°C
5.7°C
15.3/mo
Summer (Jun·Jul·Aug)
Current22.3°C
13.3°C
13.3/mo
Autumn (Sep·Oct·Nov)
15°C
7.7°C
15/mo
Winter (Dec·Jan·Feb)
6.7°C
1.3°C
17.7/mo
Brussels Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 6° | 1° | 19d·75mm | 1.8h | 86% | 1 | Quiet | Low season | |
| 7° | 1° | 16d·65mm | 2.6h | 83% | 1 | Quiet | Low season | |
| 11° | 3° | 16d·65mm | 3.8h | 78% | 2 | Moderate | Shoulder | |
| 14° | 5° | 15d·55mm | 5.2h | 73% | 4 | Busy | Peak | |
| May (Best) | 18° | 9° | 15d·65mm | 6.2h | 71% | 5 | Busy | Peak |
| June (Best) | 21° | 12° | 14d·70mm | 6.6h | 70% | 6 | Busy | Peak |
| July (Best) | 23° | 14° | 13d·75mm | 7h | 71% | 6 | Very busy | Peak |
| August (Best) | 23° | 14° | 13d·75mm | 6.4h | 73% | 5 | Very busy | Peak |
| 20° | 11° | 13d·60mm | 5h | 76% | 4 | Busy | Shoulder | |
| 15° | 8° | 15d·75mm | 3.6h | 82% | 2 | Moderate | Shoulder | |
| 10° | 4° | 17d·75mm | 2h | 86% | 1 | Moderate | Shoulder | |
| 7° | 2° | 18d·80mm | 1.6h | 87% | 1 | Busy | Peak |
View Other Months
Brussels June Hotel Picks
Frequently Asked Questions
Is June a good time to visit Brussels?
Brussels in June is very-high. Tourist crowds are busy and flight/hotel prices are peak.
What's the average temperature in Brussels in June?
Brussels June averages a high of 21°C and a low of 12°C.
Does it rain much in Brussels in June?
Brussels June averages 70mm of rainfall over about 14 rainy days.
What should I wear in Brussels in June?
Mild early summer — around 21°C/12°C with the year's longest days. Light clothing with a layer for cooler evenings and the occasional shower. Comfortable, but rarely hot.
What time are sunrise and sunset in Brussels in June?
Brussels June sunrise is 05:25 and sunset is 22:00, with 16h 35min of daylight.
What's the air quality like in Brussels in June?
Brussels June air quality (AQI) averages 40, rated Good. PM2.5 averages 15μg/m³.
What activities are recommended in Brussels in June?
In June, Brussels is great for Ommegang pageant (late June), Long-evening terraces and parks, Couleur Café and summer festivals.
Is June peak season in Brussels?
Brussels June crowds are busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Brussels
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Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.