Hiroshima weather in January
January in Hiroshima: cold, a little rain, with clean air — a good time to visit.
#8 of 12 months in Hiroshima · #304 of 604 destinations to visit in January · comfort 68/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Hiroshima climate normals — January
| Daytime high | 9°C / 49°F | 🧥 cold |
|---|---|---|
| Nighttime low | 2°C / 36°F | |
| Feels like (high) | 6°C / 43°F | |
| Rainfall | 56 mm / 2.2 in | 🌦 some rain |
| Rainy days | 9 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 0°C / 32°F | |
| Sunshine | 7.2 h/day | |
| Daylight | 10.2 h | |
| Wind | 15 km/h / 9 mph | |
| Snowfall | 7.2 cm / 2.8 in | |
| Air quality (US AQI) | 43 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Hiroshima in January — FAQ
- Is January a good time to visit Hiroshima?
- January in Hiroshima: cold, a little rain, with clean air — a good time to visit. It ranks #8 of 12 months for Hiroshima on SeasonMap's comfort score (68/100).
- What is the weather like in Hiroshima in January?
- In January, Hiroshima averages a daily high of 9.2°C and a low of 2.4°C, with about 55.9 mm of rain over roughly 8.8 rainy days.
- What is the air quality in Hiroshima in January?
- Hiroshima has a mean US Air Quality Index of about 43 in January.
- Does it snow in Hiroshima in January?
- Hiroshima sees roughly 7.2 cm of snowfall in January.