April 20 sees frequent showers in Sumba. Historical data shows a 40% chance of rain, so pack accordingly. Temperatures average 30°C. It's a great middle-ground for visiting Sumba—enough activity to feel the pulse, but no overwhelming lines. Note: April 20 is Easter Sunday in Sumba, so expect special events, closures, and festive atmosphere.
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Essential Travel Info for Sumba
Currency
IDR
Rp Indonesian rupiah
Language
Indonesian
Driving
Left side
Connect
Since Sumba is far from other major citi...
Safety
High Safety
GPI: 1.8
Sumba Weather Forecast for April 20
"Warm & Sunny. Expect average highs of 29.9°C. 40% chance of rain."
What to Wear in Sumba in April
Based on historical data for April 20, Sumba typically experiences temperatures between 24.5°C and 29.9°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 40% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Sumba
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
29.9°C
Daytime Peak
Average Low
24.5°C
Nighttime Low
Feels Like
38.5°C
🔥 Heat index effect
Rain Chance
40%
Avg 3.2mm if it rains
Cloud Cover
65%
Light drizzle
Pressure
1010.6 hPa
Low volatility
Sumba Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 84% 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
🔴 50 min to burn
Type III-IV
🟡 75 min to burn
Type V-VI
🟢 125 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
26.9°C
Humid/Sticky
Heat Index
38.5°C
Feels hotter
😕 Best outdoor time:
Morning hours (before 11 AM)
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Holiday
Easter Sunday
Flight Traffic
Moderate
56/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~5
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Sumba
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:03
☀️ Noon
11:59
🌇 Sunset
17:54
⏱️ Daylight
11h 51m
Wind Speed
13.6 km/h
Gentle breeze
Sunshine
10.5 hrs
Direct Sun (Cloud-free)
Humidity
84%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Sumba
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 Sumba
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Mild discomfort possible for arthritic conditions.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Active seismic zone. Multiple earthquakes per year.
Travel Alert: This region has elevated natural risks. We recommend registering with your embassy and keeping emergency numbers handy.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Sumba on April 20 averages 29.9°C with a 40% precipitation probability. Wedding/Outdoor Event Score: 82/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Sumba Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
April 27
30°C • 15% rain
Score
93
April 25
30.1°C • 17% rain
Score
92
April 26
30.1°C • 17% rain
Score
92
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (April 20) in other destinations
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🌍 Explore the same date in different destinations around the world
📍 Is Sumba Worth Visiting on April 20?
Planning a trip to Sumba on April 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 29.9°C with a 40% historical precipitation risk.
🎉 Local Event: The date coincides with Easter Sunday, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 5 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 11 vaccinations are recommended for Indonesia, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 29.5°C (hot soup). Wave conditions are generally lake-like with heights around 0.42m.
📊 Historical Extremes: The hottest April 20 recorded in the last 30 years saw temperatures hit 30.8°C in 2016, while the coldest dropped to 21.7°C in 2021.