Puerto Princesa (Underground River) weather in September
Philippines

September in Puerto Princesa: hot, soaked, with clean air — a gamble, with 27 rainy days.
#11 of 12 months in Puerto Princesa · #1227 of 1383 destinations to visit in September · comfort 54/100 (tier D)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Puerto Princesa in September
No notes yet. Open Puerto Princesa on the map to add the first one.
Puerto Princesa climate normals — September
| Daytime high | 30°C / 85°F | 🥵 hot |
|---|---|---|
| Nighttime low | 26°C / 78°F | |
| Sea temperature | 30°C / 86°F | ♨️ bath-warm |
| Rainfall | 254 mm / 10 in | ⛈ soaked |
| Rainy days | 27 days | |
| Humidity | 85% | 💦 very humid |
| Dew point | 25°C / 76°F | |
| Sunshine | 9.2 h/day | |
| Daylight | 12.2 h | |
| Wind | 11 km/h / 7 mph | |
| Air quality (US AQI) | 34 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Puerto Princesa in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyTerm 1 wellness break in Philippines, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Puerto Princesa's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Toughest weatherPuerto Princesa's weather peaks February–April.
Best weatherFair weatherToughest weather
What's on in Puerto Princesa in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Wet season
MonsoonRisk27 rainy days and about 254 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Nearby, and something's on
Within 300 km of Puerto Princesa — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Puerto Princesa?
Puerto Princesa in September — FAQ
- Is September a good time to visit Puerto Princesa?
- September in Puerto Princesa: hot, soaked, with clean air — a gamble, with 27 rainy days. It ranks #11 of 12 months for Puerto Princesa on SeasonMap's comfort score (54/100).
- What is the weather like in Puerto Princesa in September?
- In September, Puerto Princesa averages a daily high of 29.6°C and a low of 25.8°C, with about 254 mm of rain over roughly 26.6 rainy days.
- What is the air quality in Puerto Princesa in September?
- Puerto Princesa has a mean US Air Quality Index of about 34 in September.
Other months in Puerto Princesa
Compare Puerto Princesa in September
Warmer or cooler than Puerto Princesa in September
Similar destinations in Southeast Asia — September
Within 300 km: El Nido's Habagat around 1 Jun – 15 Oct, and Coron's Habagat around 1 Jun – 15 Oct.