Climate averages 1991–2020
Calamba weather
in May.
A hot, wet month: the 2nd warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Calamba: daytime highs average 32.2°C and nights cool to about 25.7°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 170 mm of rain on roughly 19 days, which makes May a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 47 min on an average May day.
The nearest other city in this atlas is Cabuyao (8 km away). In May its highs average 31.9°C, about as warm as Calamba, with 170 mm of rain.
Among the 151 cities listed in the Philippines, Calamba ranks joint 21st of 151 for the warmest May highs and joint 64th of 151 for the driest May (rainfall, lowest first). The mean May high of those 151 cities is 30.7°C; Calamba is 1.4°C warmer than that mean.
From May to June, average highs fall by 1.4°C to 30.8°C, and monthly rainfall rises from 170 mm to 243 mm.
The annual picture
May 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
Calamba climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.8°C22.7°C | 22.7°C | 40 | 4.5 | 11.411 h |
| February | 28.7°C22.8°C | 22.8°C | 28 | 3.9 | 11.712 h |
| March | 30.4°C23.5°C | 23.5°C | 33 | 4.6 | 12.012 h |
| April | 32.3°C24.8°C | 24.8°C | 37 | 6.1 | 12.412 h |
| May, selected | 32.2°C25.7°C | 25.7°C | 170 | 19.2 | 12.813 h |
| June | 30.8°C25.4°C | 25.4°C | 243 | 25.7 | 13.013 h |
| July | 29.7°C25.0°C | 25.0°C | 368 | 28.9 | 12.913 h |
| August | 29.5°C24.9°C | 24.9°C | 301 | 27.9 | 12.613 h |
| September | 29.5°C24.8°C | 24.8°C | 314 | 27.1 | 12.212 h |
| October | 29.5°C24.6°C | 24.6°C | 194 | 19.4 | 11.812 h |
| November | 28.9°C24.3°C | 24.3°C | 103 | 10.6 | 11.511 h |
| December | 28.0°C23.6°C | 23.6°C | 141 | 10.4 | 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
May in nearby cities
- Cabuyao in MayPhilippines · 8 kmHigh 31.9°C · Low 25.7°C · 170 mm rain
- Los Baños in MayPhilippines · 9 kmHigh 32.2°C · Low 25.8°C · 170 mm rain
- Silang in MayPhilippines · 21 kmHigh 30.5°C · Low 23.8°C · 255 mm rain
- San Pablo in MayPhilippines · 24 kmHigh 31.4°C · Low 25.2°C · 175 mm rain
- Dasmariñas in MayPhilippines · 28 kmHigh 32.1°C · Low 25.7°C · 255 mm rain
- Santa Cruz in MayPhilippines · 28 kmHigh 31.6°C · Low 25.6°C · 205 mm rain
- Tagaytay in MayPhilippines · 28 kmHigh 28.4°C · Low 22.5°C · 189 mm rain
- Binangonan in MayPhilippines · 28 kmHigh 31.5°C · Low 25.9°C · 129 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 Calamba) is explained once on the Calamba year overview and on the Sources, method and limits page.
Cabuyao and Los Baños lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.