Hagåtña weather in December
December in Hagåtña: hot, rainy, with clean air — a great time to visit.
#5 of 12 months in Hagåtña · #186 of 604 destinations to visit in December · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Hagåtña climate normals — December
| Daytime high | 28°C / 83°F | 🥵 hot |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Feels like (high) | 30°C / 86°F | |
| Rainfall | 98 mm / 3.9 in | 🌧 rainy |
| Rainy days | 18 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 10.4 h/day | |
| Daylight | 11.3 h | |
| Wind | 35 km/h / 22 mph | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Hagåtña?
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Hagåtña in December — FAQ
- Is December a good time to visit Hagåtña?
- December in Hagåtña: hot, rainy, with clean air — a great time to visit. It ranks #5 of 12 months for Hagåtña on SeasonMap's comfort score (78/100).
- What is the weather like in Hagåtña in December?
- In December, Hagåtña averages a daily high of 28.3°C and a low of 26.6°C, with about 97.8 mm of rain over roughly 18 rainy days.
- What is the air quality in Hagåtña in December?
- Hagåtña has a mean US Air Quality Index of about 39 in December.