Average annual temperature is 26.2 °C
Absolute maximum temperature: 32.5 °C
Absolute minimum temperature: 18.5 °C
Number of sunny days: 53 days
Number of rainy days: 312 days
Look at detailed online map of Calayan
* Weather data for Calayan Philippines is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 27.1 | 27.1 | 28.5 | 30.4 | 31.8 | 31.1 | 32.5 | 31.3 | 30.8 | 30.5 | 29.5 | 28.4 |
| Average daytime temperature (°C) | 24.6 | 24.7 | 25.9 | 28.0 | 29.6 | 30.0 | 30.4 | 29.6 | 29.6 | 29.1 | 27.4 | 25.8 |
| Average temperature (°C) | 23.3 | 23.4 | 24.0 | 26.1 | 27.6 | 28.1 | 28.3 | 27.8 | 27.6 | 27.4 | 25.8 | 24.5 |
| Average night temperature (°C) | 22.2 | 22.3 | 22.6 | 24.6 | 26.0 | 26.3 | 26.6 | 26.3 | 25.9 | 25.8 | 24.7 | 23.5 |
| Absolute minimum temperature (°C) | 18.5 | 19.5 | 20.4 | 22.1 | 24.4 | 24.4 | 25.0 | 23.6 | 24.3 | 24.5 | 22.3 | 19.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.0 | 13.3 | 13.2 | 12.8 | 12.2 | 11.7 | 11.2 | 11.0 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 | 10.0 |
| Sunshine mean duration (h) | 7.1 | 7.9 | 11.0 | 11.4 | 11.2 | 10.7 | 9.4 | 10.1 | 10.4 | 9.6 | 9.3 | 7.7 |
| Precipitation (mm) | 87 | 64 | 22 | 26 | 159 | 204 | 560 | 351 | 172 | 107 | 106 | 252 |
| Sunny days | 8 | 5 | 12 | 10 | 4 | 1 | 3 | 2 | 0 | 1 | 5 | 2 |
| Rainy days | 23 | 23 | 19 | 20 | 27 | 29 | 28 | 29 | 30 | 30 | 25 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Calayan is at