September 25 is generally a great time to visit Brasília. While there is a slight chance of rain (21%), showers are usually brief. Expect comfortable 29°C weather. Brasília is seeing high visitor numbers, so iconic spots may be busier than usual.
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Essential Travel Info for Brasília
Currency
BRL
R$ Brazilian real
Language
Portuguese
Driving
Right side
Safety
Moderate Safety
GPI: 2.465
Brasília Weather Forecast for September 25
"Warm & Sunny. Expect average highs of 29.3°C. 21% chance of rain."
What to Wear in Brasília in September
Based on historical data for September 25, Brasília typically experiences temperatures between 18.9°C and 29.3°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (21% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Brasília
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
29.3°C
Daytime Peak
Average Low
18.9°C
Nighttime Low
Feels Like
30.6°C
🔥 Minor difference
Rain Chance
21%
Avg 1.2mm if it rains
Cloud Cover
48%
Overcast
Pressure
1014.8 hPa
Low volatility
Brasília Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 94% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
06:00 - 10:00
16:00 - 18:00
Type I-II
🔴 19 min to burn
Type III-IV
🟡 29 min to burn
Type V-VI
🟢 48 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
19°C
Noticeable
Heat Index
30.6°C
Feels hotter
🙂 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Brazil
Flight Traffic
Busy
77/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~178
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Brasília
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:00
☀️ Noon
12:04
🌇 Sunset
18:09
⏱️ Daylight
12h 8m
Wind Speed
14.8 km/h
Gentle breeze
Sunshine
10.5 hrs
Direct Sun (Cloud-free)
Humidity
54%
Comfortable
Travel Intelligence
Exclusive flight analytics & health data for Brasília
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 Brasília
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Brasília on September 25 averages 29.3°C with a 21% precipitation probability. Wedding/Outdoor Event Score: 96/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Brasília Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
September 18
30.2°C • 12% rain
Score
100
September 19
30.1°C • 12% rain
Score
100
September 20
30.1°C • 15% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 25) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Brasília Worth Visiting on September 25?
Planning a trip to Brasília on September 25? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 29.3°C with a 21% historical precipitation risk.
✈️ Travel Logistics: Approximately 178 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 9 vaccinations are recommended for Brazil, including COVID-19.
📊 Historical Extremes: The hottest September 25 recorded in the last 30 years saw temperatures hit 33.9°C in 2023, while the coldest dropped to 17.2°C in 2020.