Climate averages 1991–2020
Olongapo weather
in January.
A hot, fairly dry month: the 11th warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Olongapo: daytime highs average 28.8°C and nights cool to about 23.0°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 18 mm of rain on roughly 3 days, which makes January a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 21 min on an average January day.
The nearest other city in this atlas is Balanga (32 km away). In January its highs average 28.7°C, about as warm as Olongapo, with 22 mm of rain.
Among the 151 cities listed in the Philippines, Olongapo ranks joint 27th of 151 for the warmest January highs and joint 6th of 151 for the driest January (rainfall, lowest first). The mean January high of those 151 cities is 27.8°C; Olongapo is 1.1°C warmer than that mean.
From January to February, average highs rise by 0.9°C to 29.7°C, and monthly rainfall rises from 18 mm to 19 mm.
The annual picture
January 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
Olongapo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 28.8°C23.0°C | 23.0°C | 18 | 2.6 | 11.411 h |
| February | 29.7°C23.0°C | 23.0°C | 19 | 2.8 | 11.612 h |
| March | 31.1°C23.9°C | 23.9°C | 23 | 3.8 | 12.012 h |
| April | 32.4°C25.3°C | 25.3°C | 27 | 5.5 | 12.512 h |
| May | 31.6°C26.0°C | 26.0°C | 185 | 18.9 | 12.813 h |
| June | 30.0°C25.6°C | 25.6°C | 361 | 25.7 | 13.013 h |
| July | 29.0°C25.2°C | 25.2°C | 571 | 29.5 | 12.913 h |
| August | 28.6°C25.1°C | 25.1°C | 565 | 29.4 | 12.613 h |
| September | 28.9°C25.0°C | 25.0°C | 436 | 27.7 | 12.212 h |
| October | 29.5°C24.8°C | 24.8°C | 225 | 20.3 | 11.812 h |
| November | 29.6°C24.7°C | 24.7°C | 86 | 9.3 | 11.511 h |
| December | 28.9°C24.0°C | 24.0°C | 67 | 6.6 | 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
January in nearby cities
- Balanga in JanuaryPhilippines · 32 kmHigh 28.7°C · Low 23.8°C · 22 mm rain
- Limay in JanuaryPhilippines · 45 kmHigh 27.9°C · Low 23.7°C · 18 mm rain
- Angeles City in JanuaryPhilippines · 48 kmHigh 28.4°C · Low 20.0°C · 27 mm rain
- San Fernando in JanuaryPhilippines · 49 kmHigh 28.4°C · Low 21.5°C · 27 mm rain
- Mariveles in JanuaryPhilippines · 49 kmHigh 28.4°C · Low 24.5°C · 18 mm rain
- Bulaon in JanuaryPhilippines · 50 kmHigh 28.4°C · Low 20.5°C · 27 mm rain
- Apalit in JanuaryPhilippines · 54 kmHigh 28.2°C · Low 21.5°C · 27 mm rain
- Malolos in JanuaryPhilippines · 57 kmHigh 28.3°C · Low 22.2°C · 24 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 Olongapo) is explained once on the Olongapo year overview and on the Sources, method and limits page.