October 20 is generally a great time to visit Sumba. While there is a slight chance of rain (21%), showers are usually brief. Expect comfortable 32°C weather. As it's peak season for Sumba, we recommend booking your stay well in advance to secure the best rates.
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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 October 20
"Warm & Sunny. Expect average highs of 32.4°C. 21% chance of rain."
What to Wear in Sumba in October
Based on historical data for October 20, Sumba typically experiences temperatures between 24.6°C and 32.4°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 Sumba
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
32.4°C
Daytime Peak
Average Low
24.6°C
Nighttime Low
Feels Like
43.2°C
🔥 Heat index effect
Rain Chance
21%
Avg 1.1mm if it rains
Cloud Cover
50%
Overcast
Pressure
1011 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 93% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 09:30
16:00 - 17:00
Type I-II
🔴 14 min to burn
Type III-IV
🟡 21 min to burn
Type V-VI
🟢 35 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
27.2°C
Humid/Sticky
Heat Index
43.2°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Indonesia
Flight Traffic
High
89/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~8
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Sumba
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:34
☀️ Noon
11:44
🌇 Sunset
17:55
⏱️ Daylight
12h 20m
Wind Speed
15.3 km/h
Gentle breeze
Sunshine
11.3 hrs
Direct Sun (Cloud-free)
Humidity
74%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Sumba
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 Sumba
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.
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 October 20 averages 32.4°C with a 21% precipitation probability. Wedding/Outdoor Event Score: 97/100."
— 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
October 14
32.5°C • 13% rain
Score
100
October 25
32.3°C • 15% rain
Score
100
October 26
32.3°C • 12% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (October 20) in other destinations
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🌍 Explore the same date in different destinations around the world
📍 Is Sumba Worth Visiting on October 20?
Planning a trip to Sumba on October 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 32.4°C with a 21% historical precipitation risk.
✈️ Travel Logistics: Approximately 8 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 29.1°C (hot soup). Wave conditions are generally lake-like with heights around 0.2m.
📊 Historical Extremes: The hottest October 20 recorded in the last 30 years saw temperatures hit 33.8°C in 2021, while the coldest dropped to 22.8°C in 2023.