Osaka weather in January
January in Osaka: cold, a little rain, with very humid — a good time to visit.
#8 of 12 months in Osaka · #312 of 604 destinations to visit in January · comfort 68/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Osaka climate normals — January
| Daytime high | 9°C / 48°F | 🧥 cold |
|---|---|---|
| Nighttime low | 2°C / 35°F | |
| Feels like (high) | 5°C / 41°F | |
| Rainfall | 48 mm / 1.9 in | 🌦 some rain |
| Rainy days | 6 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | 0°C / 32°F | |
| Sunshine | 7.3 h/day | |
| Daylight | 10.1 h | |
| Wind | 16 km/h / 10 mph | |
| Snowfall | 1 cm / 0.4 in | |
| Air quality (US AQI) | 53 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Osaka?
Loading map…
Osaka in January — FAQ
- Is January a good time to visit Osaka?
- January in Osaka: cold, a little rain, with very humid — a good time to visit. It ranks #8 of 12 months for Osaka on SeasonMap's comfort score (68/100).
- What is the weather like in Osaka in January?
- In January, Osaka averages a daily high of 8.7°C and a low of 1.8°C, with about 48.3 mm of rain over roughly 6.2 rainy days.
- What is the air quality in Osaka in January?
- Osaka has a mean US Air Quality Index of about 53 in January.
- Does it snow in Osaka in January?
- Osaka sees roughly 1 cm of snowfall in January.