Climate averages 1991–2020
Santiago, Philippines weather
in September.
A hot, very wet month: the 6th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Santiago, Philippines: daytime highs average 30.0°C and nights cool to about 23.2°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 219 mm of rain on roughly 23 days, which makes September a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 14 min on an average September day.
The nearest other city in this atlas is Alicia (19 km away). In September its highs average 30.3°C, about as warm as Santiago, Philippines, with 236 mm of rain.
Among the 151 cities listed in the Philippines, Santiago, Philippines ranks joint 16th of 151 for the warmest September highs and joint 43rd of 151 for the driest September (rainfall, lowest first). The mean September high of those 151 cities is 29.0°C; Santiago, Philippines is 0.9°C warmer than that mean.
From September to October, average highs fall by 1.4°C to 28.6°C, and monthly rainfall falls from 219 mm to 186 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Santiago, Philippines climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.2°C19.6°C | 19.6°C | 65 | 11.0 | 11.311 h |
| February | 26.1°C19.9°C | 19.9°C | 52 | 9.8 | 11.612 h |
| March | 28.2°C20.9°C | 20.9°C | 61 | 10.8 | 12.012 h |
| April | 30.9°C22.6°C | 22.6°C | 61 | 11.1 | 12.513 h |
| May | 32.0°C23.7°C | 23.7°C | 161 | 17.4 | 12.913 h |
| June | 32.0°C23.9°C | 23.9°C | 138 | 18.5 | 13.113 h |
| July | 31.0°C23.6°C | 23.6°C | 223 | 23.9 | 13.013 h |
| August | 30.7°C23.6°C | 23.6°C | 205 | 22.8 | 12.713 h |
| September, selected | 30.0°C23.2°C | 23.2°C | 219 | 22.7 | 12.212 h |
| October | 28.6°C22.6°C | 22.6°C | 186 | 19.6 | 11.812 h |
| November | 27.4°C21.9°C | 21.9°C | 153 | 18.3 | 11.411 h |
| December | 25.6°C20.7°C | 20.7°C | 158 | 16.1 | 11.211 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Alicia in SeptemberPhilippines · 19 kmHigh 30.3°C · Low 23.4°C · 236 mm rain
- Ilagan in SeptemberPhilippines · 63 kmHigh 30.5°C · Low 24.2°C · 301 mm rain
- Tabuk, Philippines in SeptemberPhilippines · 82 kmHigh 29.0°C · Low 22.9°C · 267 mm rain
- Tuguegarao in SeptemberPhilippines · 105 kmHigh 29.7°C · Low 23.8°C · 278 mm rain
- La Trinidad in SeptemberPhilippines · 106 kmHigh 22.4°C · Low 17.3°C · 463 mm rain
- Baguio in SeptemberPhilippines · 106 kmHigh 21.2°C · Low 16.3°C · 463 mm rain
- Solana in SeptemberPhilippines · 108 kmHigh 29.8°C · Low 23.8°C · 250 mm rain
- Muñoz in SeptemberPhilippines · 128 kmHigh 29.2°C · Low 22.9°C · 347 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Santiago) is explained once on the Santiago, Philippines year overview and on the Sources, method and limits page.