Climate averages 1991–2020
Imus weather
in September.
A hot, very wet month: the joint 9th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Imus: daytime highs average 29.3°C and nights cool to about 24.8°C. By daytime temperature it is the joint 9th warmest of the 12 months.
Expect about 277 mm of rain on roughly 26 days, which makes September a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 13 min on an average September day.
The nearest other city in this atlas is Las Piñas (5 km away). In September its highs average 29.1°C, about as warm as Imus, with 277 mm of rain.
Among the 151 cities listed in the Philippines, Imus ranks joint 54th of 151 for the warmest September highs and joint 77th of 151 for the driest September (rainfall, lowest first). The mean September high of those 151 cities is 29.0°C; Imus is 0.3°C warmer than that mean.
From September to October, average highs rise by 0.3°C to 29.6°C, and monthly rainfall falls from 277 mm to 159 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
Imus climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.4°C22.7°C | 22.7°C | 28 | 2.8 | 11.411 h |
| February | 29.4°C22.9°C | 22.9°C | 18 | 2.7 | 11.712 h |
| March | 31.1°C23.8°C | 23.8°C | 22 | 2.9 | 12.012 h |
| April | 33.0°C25.2°C | 25.2°C | 17 | 3.6 | 12.412 h |
| May | 32.5°C25.9°C | 25.9°C | 114 | 14.6 | 12.813 h |
| June | 31.0°C25.5°C | 25.5°C | 167 | 22.2 | 13.013 h |
| July | 29.6°C25.0°C | 25.0°C | 313 | 27.1 | 12.913 h |
| August | 29.3°C25.0°C | 25.0°C | 289 | 27.2 | 12.613 h |
| September, selected | 29.3°C24.8°C | 24.8°C | 277 | 25.9 | 12.212 h |
| October | 29.6°C24.5°C | 24.5°C | 159 | 16.1 | 11.812 h |
| November | 29.4°C24.3°C | 24.3°C | 74 | 7.8 | 11.511 h |
| December | 28.5°C23.6°C | 23.6°C | 103 | 7.4 | 11.311 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
- Las Piñas in SeptemberPhilippines · 5 kmHigh 29.1°C · Low 24.7°C · 277 mm rain
- Dasmariñas in SeptemberPhilippines · 11 kmHigh 29.2°C · Low 24.7°C · 433 mm rain
- Taguig in SeptemberPhilippines · 19 kmHigh 28.9°C · Low 24.7°C · 277 mm rain
- Manila in SeptemberPhilippines · 20 kmHigh 28.8°C · Low 24.7°C · 277 mm rain
- Silang in SeptemberPhilippines · 24 kmHigh 27.8°C · Low 22.9°C · 433 mm rain
- Caloocan in SeptemberPhilippines · 25 kmHigh 28.9°C · Low 24.7°C · 400 mm rain
- Indang in SeptemberPhilippines · 27 kmHigh 28.2°C · Low 23.6°C · 433 mm rain
- Cabuyao in SeptemberPhilippines · 27 kmHigh 29.2°C · Low 24.6°C · 314 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 Imus) is explained once on the Imus year overview and on the Sources, method and limits page.
Manila, Taguig and Las Piñas lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.