A consolidated reference for Calamba climate: monthly averages, rebuilt from public data on a schedule. Expect 23.7 C at the coldest (Jan) and 28.2 C at the warmest (May) — a 4.5 C spread. Expect a wet month and a dry month but no real season: 12.51 mm/day in Dec against 3.02 mm/day in Apr. Taken together that is roughly 2,739 mm of rain a year for the grid cell. The build runs on a schedule and caches the last good response, so the numbers stay put even when the upstream API is having a bad day. Use the table for exact numbers, or the related pages below for neighbouring locations and periods.
Annual mean temperature 25.9 C
Warmest month May (28.2 C)
Coldest month Jan (23.7 C)
Wettest month Dec (12.51 mm/day)
All-time record high 37.9 C
All-time record low 16.0 C
Annual precipitation 2,748 mm / year
Coordinates 14.21167, 121.16528
Population 575,046
Average monthly temperature and rainfall in Calamba
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
23.7
4.65
31.2
16.0
Feb
24.0
4.74
32.5
18.0
Mar
25.4
3.39
37.0
18.3
Apr
27.4
3.02
37.5
20.1
May
28.2
5.27
37.8
22.5
Jun
27.3
8.16
37.1
22.6
Jul
26.5
9.12
35.5
22.9
Aug
26.4
7.67
37.9
22.9
Sep
26.4
9.06
34.1
22.6
Oct
26.0
10.81
32.6
20.4
Nov
25.4
11.70
31.4
18.5
Dec
24.5
12.51
31.2
18.4
What the Calamba climate table shows
Values are multi-decadal climatological averages for the 14.21167, 121.16528 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
Is Calamba climate data a forecast?
No. These are multi-decadal averages for the grid cell, not a prediction for any particular year.
Why do the numbers differ from a weather app?
An app shows one location on one day. These are long-run averages, so they smooth out single hot or cold spells.