Hagåtña weather in January
January in Hagåtña: hot, rainy, with clean air — a great time to visit.
#4 of 12 months in Hagåtña · #181 of 604 destinations to visit in January · comfort 79/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Hagåtña climate normals — January
| Daytime high | 28°C / 82°F | 🥵 hot |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 29°C / 84°F | |
| Rainfall | 92 mm / 3.6 in | 🌧 rainy |
| Rainy days | 16 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 23°C / 74°F | |
| Sunshine | 10.4 h/day | |
| Daylight | 11.4 h | |
| Wind | 35 km/h / 22 mph | |
| Air quality (US AQI) | 45 | 🍃 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 January — FAQ
- Is January a good time to visit Hagåtña?
- January in Hagåtña: hot, rainy, with clean air — a great time to visit. It ranks #4 of 12 months for Hagåtña on SeasonMap's comfort score (79/100).
- What is the weather like in Hagåtña in January?
- In January, Hagåtña averages a daily high of 27.5°C and a low of 26°C, with about 92.2 mm of rain over roughly 16 rainy days.
- What is the air quality in Hagåtña in January?
- Hagåtña has a mean US Air Quality Index of about 45 in January.