April 18 is generally a great time to visit Rio de Janeiro. While there is a slight chance of rain (20%), showers are usually brief. Expect comfortable 28°C weather. As it's peak season for Rio de Janeiro, we recommend booking your stay well in advance to secure the best rates. Note: April 18 is Good Friday in Rio de Janeiro, so expect special events, closures, and festive atmosphere.
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Essential Travel Info for Rio de Janeiro
Currency
BRL
R$ Brazilian real
Language
Portuguese
Driving
Right side
Safety
Moderate Safety
GPI: 2.465
Rio de Janeiro Weather Forecast for April 18
"Warm & Sunny. Expect average highs of 27.8°C. 20% chance of rain."
What to Wear in Rio de Janeiro in April
Based on historical data for April 18, Rio de Janeiro typically experiences temperatures between 20.8°C and 27.8°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (20% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Rio de Janeiro
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
27.8°C
Daytime Peak
Average Low
20.8°C
Nighttime Low
Feels Like
31.5°C
🔥 Feels warmer
Rain Chance
20%
Avg 1mm if it rains
Cloud Cover
47%
Light drizzle
Pressure
1015.5 hPa
Low volatility
Rio de Janeiro 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 15 for extended outdoor time
Type I-II
🔴 42 min to burn
Type III-IV
🟡 63 min to burn
Type V-VI
🟢 105 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
23.8°C
Humid/Sticky
Heat Index
31.5°C
Feels hotter
😐 Best outdoor time:
Morning hours (before 11 AM)
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Holiday
Good Friday
Flight Traffic
High
98/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~246
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Rio de Janeiro
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:07
☀️ Noon
11:53
🌇 Sunset
17:38
⏱️ Daylight
11h 30m
Wind Speed
13.8 km/h
Gentle breeze
Sunshine
9.4 hrs
Direct Sun (Cloud-free)
Humidity
79%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Rio de Janeiro
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 Rio de Janeiro
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, Rio de Janeiro on April 18 averages 27.8°C with a 20% precipitation probability. Wedding/Outdoor Event Score: 97/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Rio de Janeiro Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
April 23
28.2°C • 12% rain
Score
100
April 24
28.4°C • 12% rain
Score
100
April 21
27.8°C • 17% rain
Score
98
💡 Moving your event by a few days could significantly improve weather conditions
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Same date (April 18) in other destinations
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🌍 Explore the same date in different destinations around the world
📍 Is Rio de Janeiro Worth Visiting on April 18?
Planning a trip to Rio de Janeiro on April 18? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 27.8°C with a 20% historical precipitation risk.
🎉 Local Event: The date coincides with Good Friday, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 246 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 9 vaccinations are recommended for Brazil, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 24.2°C (swimming pool). Wave conditions are generally fun waves with heights around 1.11m.
📊 Historical Extremes: The hottest April 18 recorded in the last 30 years saw temperatures hit 33.8°C in 2016, while the coldest dropped to 18.1°C in 2022.