Last updated: August 23, 2025
In September, the average temperature in Agana Heights Village, Guam is a warm 28°C (82°F), with temperatures dipping as low as 25°C (77°F) and peaking at 30°C (86°F). Expect a rainy month, with 375 mm (14.8 in) of precipitation spread over 28 days. Humidity remains high at an average of 81%, making it a truly tropical experience.
In September in Agana Heights Village, the average temperature is 28°C (82°F). The maximum can reach 30°C (86°F) and the minimum can be as low as 25°C (77°F). This mild and warm weather makes it an ideal time to explore and enjoy outdoor activities in Agana Heights Village.
In Agana Heights Village in September, the total precipitation amount is 375 mm (14.8 in) spread over a period of 28 days.
In Agana Heights Village in September, humidity is 81%. With an average temperature of 28°C (82°F), this humidity feels like a warm blanket wrapped around you, making traveling somewhat uncomfortable as the air thickens, leaving you longing for a refreshing breeze.
In Agana Heights Village in September, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Agana Heights Village.
UV Risk Categories
Weather in Agana Heights Village varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Agana Heights Village, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 27°C (81°F) | 61 mm (2.4 inches) | 83% | extreme |
| February Weather | 27°C (80°F) | 77 mm (3.0 inches) | 82% | extreme |
| March Weather | 27°C (81°F) | 53 mm (2.1 inches) | 84% | extreme |
| April Weather | 27°C (81°F) | 94 mm (3.7 inches) | 84% | extreme |
| May Weather | 28°C (82°F) | 78 mm (3.1 inches) | 83% | extreme |
| June Weather | 28°C (82°F) | 159 mm (6.3 inches) | 80% | extreme |
| July Weather | 28°C (82°F) | 276 mm (10.9 inches) | 80% | extreme |
| August Weather | 28°C (82°F) | 405 mm (16.0 inches) | 80% | extreme |
| September Weather | 28°C (82°F) | 375 mm (14.8 inches) | 81% | extreme |
| October Weather | 28°C (82°F) | 356 mm (14.0 inches) | 80% | extreme |
| November Weather | 28°C (82°F) | 202 mm (8.0 inches) | 81% | extreme |
| December Weather | 27°C (82°F) | 105 mm (4.1 inches) | 84% | extreme |