August 13 is generally a great time to visit Brussels. While there is a slight chance of rain (22%), showers are usually brief. Expect comfortable 24°C weather. As it's peak season for Brussels, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Brussels
Currency
EUR
€ Euro
Language
German
+2 more
Driving
Right side
Safety
High Safety
GPI: 1.526
Brussels Weather Forecast for August 13
"Mild & Comfortable. Expect average highs of 24.1°C. 22% chance of rain."
What to Wear in Brussels in August
Based on historical data for August 13, Brussels typically experiences temperatures between 15.2°C and 24.1°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (22% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Brussels
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
24.1°C
Daytime Peak
Average Low
15.2°C
Nighttime Low
Feels Like
24.7°C
☀️ Feels accurate
Rain Chance
22%
Avg 1.3mm if it rains
Cloud Cover
60%
Overcast
Pressure
1015.1 hPa
Medium volatility
Brussels Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
~ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 20:00
Type I-II
🔴 24 min to burn
Type III-IV
🟡 36 min to burn
Type V-VI
🟢 60 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
18.7°C
Noticeable
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Belgium
Flight Traffic
High
92/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~564
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Brussels
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:27
☀️ Noon
12:48
🌇 Sunset
20:09
⏱️ Daylight
14h 42m
Wind Speed
16.5 km/h
Gentle breeze
Sunshine
10.8 hrs
Direct Sun (Cloud-free)
Humidity
72%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Brussels
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Brussels
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Brussels on August 13 averages 24.1°C with a 22% precipitation probability. Wedding/Outdoor Event Score: 97/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Brussels Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (August 13) in other destinations
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📍 Is Brussels Worth Visiting on August 13?
Planning a trip to Brussels on August 13? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 24.1°C with a 22% historical precipitation risk.
✈️ Travel Logistics: Approximately 564 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 7 vaccinations are recommended for Belgium, including COVID-19.
📊 Historical Extremes: The hottest August 13 recorded in the last 30 years saw temperatures hit 32.2°C in 2025, while the coldest dropped to 12°C in 2019.