Siargao weather in September
September in Siargao: warm, rainy, with clean air — one of the best months to visit.
#1 of 12 months in Siargao · #369 of 897 destinations to visit in September · comfort 86/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Siargao in September
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Siargao climate normals — September
| Daytime high | 29°C / 84°F | 🌤 warm |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Rainfall | 85 mm / 3.3 in | 🌧 rainy |
| Rainy days | 17 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 9.9 h/day | |
| Daylight | 12.2 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 30 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Siargao in September — FAQ
- Is September a good time to visit Siargao?
- September in Siargao: warm, rainy, with clean air — one of the best months to visit. It ranks #1 of 12 months for Siargao on SeasonMap's comfort score (86/100).
- What is the weather like in Siargao in September?
- In September, Siargao averages a daily high of 28.8°C and a low of 26.5°C, with about 84.9 mm of rain over roughly 16.8 rainy days.
- What is the air quality in Siargao in September?
- Siargao has a mean US Air Quality Index of about 30 in September.