Average annual temperature is 27.5 °C
Absolute maximum temperature: 31.4 °C
Absolute minimum temperature: 23.2 °C
Number of sunny days: 30 days
Number of rainy days: 335 days
Look at detailed online map of Calayan-on
* Weather data for Calayan-on 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) | 29.1 | 29.5 | 30.5 | 31.0 | 31.4 | 31.1 | 30.8 | 31.4 | 31.1 | 31.0 | 30.9 | 30.7 |
| Average daytime temperature (°C) | 27.0 | 27.9 | 28.4 | 28.9 | 29.6 | 29.0 | 29.3 | 29.9 | 29.2 | 29.1 | 28.9 | 29.2 |
| Average temperature (°C) | 26.0 | 26.5 | 26.7 | 27.5 | 28.2 | 27.8 | 28.2 | 28.6 | 28.0 | 28.0 | 27.6 | 27.5 |
| Average night temperature (°C) | 24.9 | 25.3 | 25.2 | 26.2 | 27.0 | 26.6 | 27.0 | 27.3 | 26.6 | 26.8 | 26.3 | 26.1 |
| Absolute minimum temperature (°C) | 24.0 | 24.3 | 23.2 | 24.3 | 25.4 | 24.9 | 25.5 | 25.3 | 25.2 | 25.3 | 25.3 | 24.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.5 | 11.8 | 12.1 | 12.4 | 12.7 | 12.8 | 12.7 | 12.5 | 12.2 | 11.9 | 11.6 | 11.5 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 5.2 | 9.0 | 10.0 | 10.7 | 10.2 | 9.6 | 8.8 | 10.3 | 9.6 | 10.3 | 8.7 | 9.9 |
| Precipitation (mm) | 556 | 176 | 137 | 92 | 178 | 239 | 224 | 144 | 300 | 162 | 256 | 79 |
| Sunny days | 1 | 1 | 9 | 3 | 0 | 2 | 2 | 6 | 3 | 1 | 0 | 2 |
| Rainy days | 30 | 27 | 22 | 27 | 31 | 28 | 29 | 25 | 27 | 30 | 30 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Calayan-on is at