April 21 is generally a great time to visit Sao Paulo. While there is a slight chance of rain (16%), showers are usually brief. Expect comfortable 24°C weather. It's a quieter period for Sao Paulo, ideal for those who prefer unhurried sightseeing. Note: April 21 is Tiradentes in Sao Paulo, so expect special events, closures, and festive atmosphere.
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Essential Travel Info for Sao Paulo
Currency
BRL
R$ Brazilian real
Language
Portuguese
Driving
Right side
Safety
Moderate Safety
GPI: 2.465
Sao Paulo Weather Forecast for April 21
"Mild & Comfortable. Expect average highs of 24.2°C. 16% chance of rain."
What to Wear in Sao Paulo in April
Based on historical data for April 21, Sao Paulo typically experiences temperatures between 15.8°C and 24.2°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (16% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Sao Paulo
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
24.2°C
Daytime Peak
Average Low
15.8°C
Nighttime Low
Feels Like
25.1°C
☀️ Feels accurate
Rain Chance
16%
Avg 0.9mm if it rains
Cloud Cover
62%
Overcast
Pressure
1017 hPa
Low volatility
Sao Paulo Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 95% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 47 min to burn
Type III-IV
🟡 71 min to burn
Type V-VI
🟢 118 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
21.1°C
Humid/Sticky
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Holiday
Tiradentes
Flight Traffic
Quiet
29/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~464
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Sao Paulo
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:23
☀️ Noon
12:06
🌇 Sunset
17:49
⏱️ Daylight
11h 25m
Wind Speed
15.3 km/h
Gentle breeze
Sunshine
9.1 hrs
Direct Sun (Cloud-free)
Humidity
83%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Sao Paulo
Smart Flight Estimator
Airport-to-Airport Logistics
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Add your home location in settings to see airport details.
Travel Health & Safety in Sao Paulo
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
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
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Sao Paulo on April 21 averages 24.2°C with a 16% precipitation probability. Wedding/Outdoor Event Score: 99/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Sao Paulo Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
April 22
24.4°C • 15% rain
Score
100
April 23
24.7°C • 15% rain
Score
100
April 24
24.9°C • 12% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (April 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Sao Paulo Worth Visiting on April 21?
Planning a trip to Sao Paulo on April 21? 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 24.2°C with a 16% historical precipitation risk.
🎉 Local Event: The date coincides with Tiradentes, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 464 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 9 vaccinations are recommended for Brazil, including COVID-19.
📊 Historical Extremes: The hottest April 21 recorded in the last 30 years saw temperatures hit 30.4°C in 2016, while the coldest dropped to 9.4°C in 2023.