Climate averages 1991–2020
Calasiao weather
in December.
A hot, fairly dry month: the joint 9th warmest and the 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Calasiao: daytime highs average 29.0°C and nights cool to about 22.7°C. By daytime temperature it is the joint 9th warmest of the 12 months.
Expect about 34 mm of rain on roughly 5 days, which makes December a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 12 min on an average December day.
The nearest other city in this atlas is Dagupan (5 km away). In December its highs average 29.1°C, about as warm as Calasiao, with 34 mm of rain.
Among the 151 cities listed in the Philippines, Calasiao ranks joint 24th of 151 for the warmest December highs and joint 1st of 151 for the driest December (rainfall, lowest first). The mean December high of those 151 cities is 28.1°C; Calasiao is 0.9°C warmer than that mean.
From December to January, average highs fall by 0.2°C to 28.8°C, and monthly rainfall falls from 34 mm to 9.5 mm.
The annual picture
December 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
Calasiao climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.8°C21.8°C | 21.8°C | 9.5 | 1.7 | 11.311 h |
| February | 29.7°C22.1°C | 22.1°C | 12 | 1.9 | 11.612 h |
| March | 31.3°C23.2°C | 23.2°C | 19 | 3.4 | 12.012 h |
| April | 32.8°C24.6°C | 24.6°C | 33 | 6.7 | 12.512 h |
| May | 32.1°C25.2°C | 25.2°C | 192 | 19.5 | 12.913 h |
| June | 30.7°C24.8°C | 24.8°C | 243 | 24.0 | 13.113 h |
| July | 29.4°C24.4°C | 24.4°C | 400 | 28.2 | 13.013 h |
| August | 29.0°C24.3°C | 24.3°C | 408 | 28.2 | 12.713 h |
| September | 29.0°C24.1°C | 24.1°C | 324 | 26.1 | 12.212 h |
| October | 29.3°C23.9°C | 23.9°C | 169 | 13.5 | 11.812 h |
| November | 29.6°C23.5°C | 23.5°C | 54 | 5.4 | 11.411 h |
| December, selected | 29.0°C22.7°C | 22.7°C | 34 | 4.7 | 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
December in nearby cities
- Dagupan in DecemberPhilippines · 5 kmHigh 29.1°C · Low 23.0°C · 34 mm rain
- Urdaneta in DecemberPhilippines · 23 kmHigh 29.3°C · Low 21.0°C · 54 mm rain
- Bayambang in DecemberPhilippines · 24 kmHigh 29.6°C · Low 21.1°C · 48 mm rain
- Paniqui in DecemberPhilippines · 45 kmHigh 29.6°C · Low 21.2°C · 48 mm rain
- Baguio in DecemberPhilippines · 51 kmHigh 20.9°C · Low 15.0°C · 116 mm rain
- La Trinidad in DecemberPhilippines · 55 kmHigh 21.9°C · Low 16.0°C · 116 mm rain
- Bauang in DecemberPhilippines · 58 kmHigh 27.2°C · Low 23.6°C · 93 mm rain
- Tarlac City in DecemberPhilippines · 64 kmHigh 29.3°C · Low 21.3°C · 68 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 Calasiao) is explained once on the Calasiao year overview and on the Sources, method and limits page.
Dagupan lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.