Average annual temperature is 26.2 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: 18.9 °C
Number of sunny days: 49 days
Number of rainy days: 316 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) | 28.8 | 29.9 | 31.9 | 31.8 | 34.1 | 33.0 | 34.2 | 33.9 | 32.6 | 32.2 | 32.1 | 30.6 |
| Average daytime temperature (°C) | 25.5 | 26.2 | 27.5 | 29.5 | 30.8 | 31.7 | 31.3 | 31.5 | 30.5 | 30.5 | 28.7 | 27.6 |
| Average temperature (°C) | 23.2 | 23.7 | 24.4 | 26.3 | 27.6 | 28.3 | 28.0 | 28.1 | 27.4 | 27.1 | 25.9 | 24.9 |
| Average night temperature (°C) | 21.5 | 21.6 | 21.8 | 23.7 | 25.2 | 25.6 | 25.4 | 25.5 | 24.9 | 24.3 | 23.9 | 22.9 |
| Absolute minimum temperature (°C) | 18.9 | 19.9 | 18.9 | 22.2 | 23.8 | 24.5 | 23.7 | 24.3 | 23.6 | 22.8 | 22.1 | 20.5 |
| 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) | 11.2 | 11.5 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.1 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 6.7 | 7.6 | 10.8 | 10.8 | 10.6 | 10.9 | 9.4 | 9.1 | 10.0 | 9.6 | 8.6 | 8.0 |
| Precipitation (mm) | 56 | 155 | 33 | 76 | 271 | 134 | 661 | 644 | 250 | 96 | 79 | 196 |
| Sunny days | 7 | 9 | 5 | 6 | 5 | 2 | 3 | 5 | 1 | 2 | 4 | 0 |
| Rainy days | 24 | 19 | 26 | 24 | 26 | 28 | 28 | 26 | 29 | 29 | 26 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Calayan is at