Average annual temperature is 27.1 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: 22.3 °C
Number of sunny days: 8 days
Number of rainy days: 357 days
Look at detailed online map of Agana Heights Municipality
* Weather data for Agana Heights Municipality Guam is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 30.9 | 30.5 | 33.3 | 30.6 | 32.3 | 31.3 | 31.3 | 32.3 | 31.6 | 31.4 | 31.5 | 31.3 |
| Average daytime temperature (°C) | 29.1 | 29.3 | 29.6 | 29.7 | 30.1 | 30.0 | 30.3 | 29.8 | 29.9 | 30.1 | 30.5 | 30.0 |
| Average temperature (°C) | 26.7 | 26.7 | 26.5 | 27.1 | 27.4 | 27.3 | 27.4 | 26.9 | 27.1 | 27.2 | 27.9 | 27.5 |
| Average night temperature (°C) | 25.0 | 24.8 | 24.3 | 25.1 | 25.5 | 25.3 | 25.1 | 24.8 | 24.8 | 25.0 | 26.1 | 25.5 |
| Absolute minimum temperature (°C) | 23.3 | 23.1 | 22.3 | 23.4 | 23.3 | 23.6 | 23.6 | 23.6 | 23.8 | 23.4 | 23.8 | 23.8 |
| 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) | 11.4 | 11.7 | 12.1 | 12.4 | 12.7 | 12.9 | 12.8 | 12.6 | 12.2 | 11.8 | 11.5 | 11.3 |
| 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) | 9.1 | 10.1 | 10.9 | 10.4 | 9.3 | 9.8 | 8.9 | 7.9 | 8.1 | 8.4 | 10.0 | 10.2 |
| Precipitation (mm) | 177 | 111 | 172 | 154 | 623 | 293 | 323 | 607 | 415 | 392 | 110 | 100 |
| Sunny days | 3 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
| Rainy days | 28 | 28 | 30 | 29 | 30 | 30 | 30 | 31 | 30 | 31 | 29 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Agana Heights Municipality is at