Historical data suggests significant rain risk (81%) on December 21. If you seek sun, consider a different date. Bring rain gear! Expect a bustling atmosphere in Siargao right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Siargao
Currency
PHP
₱ Philippine peso
Language
English
+1 more
Driving
Right side
Safety
Moderate Safety
GPI: 2.339
Siargao Weather Forecast for December 21
"Rainy & Overcast. Expect average highs of 26.4°C. 81% chance of rain."
What to Wear in Siargao in December
Based on historical data for December 21, Siargao typically experiences temperatures between 23.8°C and 26.4°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 81% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Siargao
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
26.4°C
Daytime Peak
Average Low
23.8°C
Nighttime Low
Feels Like
27.8°C
☀️ Minor difference
Rain Chance
81%
Avg 9.5mm if it rains
Cloud Cover
78%
Moderate rain
Pressure
1009.6 hPa
Low volatility
Siargao Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 96% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
24.1°C
Humid/Sticky
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Morning hours (before 11 AM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Philippines
Flight Traffic
High
82/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~14
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Siargao
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:48
☀️ Noon
11:34
🌇 Sunset
17:21
⏱️ Daylight
11h 32m
Wind Speed
22.3 km/h
Moderate wind
Sunshine
8.2 hrs
Direct Sun (Cloud-free)
Humidity
87%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Siargao
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Siargao
Travel Comfort Index
Real-time tourism conditions
Weather Quality
🌧️ Variable
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
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
Very high seismic risk. Ring of Fire territory.
Typhoon Risk
Year-round risk present
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, Siargao on December 21 averages 26.4°C with a 81% precipitation probability. Wedding/Outdoor Event Score: 48/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Siargao Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
December 14
26.7°C • 75% rain
Score
56
December 28
26.3°C • 74% rain
Score
55
December 15
26.7°C • 78% rain
Score
53
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (December 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Siargao Worth Visiting on December 21?
Planning a trip to Siargao on December 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 26.4°C with a 81% historical precipitation risk.
✈️ Travel Logistics: Approximately 14 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 11 vaccinations are recommended for Philippines, including COVID-19.
📊 Historical Extremes: The hottest December 21 recorded in the last 30 years saw temperatures hit 28.8°C in 2021, while the coldest dropped to 23°C in 2022.