Last updated: August 23, 2025
In December, the average temperature in Agana Heights Village, Guam hovers around 27°C (82°F), with minimums of 26°C (78°F) and maximums reaching 29°C (84°F). Expect 105 mm (4.1 in) of precipitation over 22 days, contributing to a relatively high average humidity of 84%.
In December in Agana Heights Village, the average temperature is 27°C (82°F). Maximums can reach 29°C (84°F), and minimums can be as low as 26°C (78°F). This mild and warm weather makes it an ideal time to explore the outdoors and enjoy various activities in Agana Heights Village.
In Agana Heights Village in December, the precipitation amount is 105 mm (4.1 in) spread over 22 days.
In Agana Heights Village in December humidity is 84%. With an average temperature of 27°C (82°F), this humidity feels like walking through a warm, damp blanket, making travel feel heavier and more exhausting.
In Agana Heights Village in December, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, 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 December’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 |