June 21 sees frequent showers in Siargao. Historical data shows a 67% chance of rain, so pack accordingly. Temperatures average 28°C. As it's peak season for Siargao, we recommend booking your stay well in advance to secure the best rates.
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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 June 21
"Rainy & Overcast. Expect average highs of 27.8°C. 67% chance of rain."
What to Wear in Siargao in June
Based on historical data for June 21, Siargao typically experiences temperatures between 24.7°C and 27.8°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 67% 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
27.8°C
Daytime Peak
Average Low
24.7°C
Nighttime Low
Feels Like
32°C
🔥 Feels warmer
Rain Chance
67%
Avg 4mm if it rains
Cloud Cover
84%
Moderate rain
Pressure
1009.4 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 98% 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
🔴 16 min to burn
Type III-IV
🟡 24 min to burn
Type V-VI
🟢 40 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
24.6°C
Humid/Sticky
Heat Index
32°C
Feels hotter
😐 Best outdoor time:
Morning hours (before 11 AM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Philippines
Flight Traffic
High
100/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~17
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Siargao
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:17
☀️ Noon
11:38
🌇 Sunset
17:59
⏱️ Daylight
12h 41m
Wind Speed
17.7 km/h
Gentle breeze
Sunshine
9.4 hrs
Direct Sun (Cloud-free)
Humidity
83%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Siargao
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 Siargao
Travel Comfort Index
Real-time tourism conditions
Weather Quality
🌧️ Variable
Tourist Crowds
🔴 Very 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 June 21 averages 27.8°C with a 67% precipitation probability. Wedding/Outdoor Event Score: 62/100."
— 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
June 14
28.1°C • 54% rain
Score
72
June 15
28°C • 58% rain
Score
69
June 16
27.9°C • 58% rain
Score
69
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (June 21) in other destinations
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📍 Is Siargao Worth Visiting on June 21?
Planning a trip to Siargao on June 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 27.8°C with a 67% historical precipitation risk.
✈️ Travel Logistics: Approximately 17 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 June 21 recorded in the last 30 years saw temperatures hit 30.2°C in 2025, while the coldest dropped to 23.7°C in 2025.