What to pack for Osaka in January
- a warm coat, hat and gloves
- a packable rain layer
Humidity averages 74%; max daily wind around 23 km/h.
How January compares
Best months in Osaka: April–May & October–November. See the full best time to visit Osaka guide.
Osaka in January: the details
In January, Osaka sees average daytime highs of 9°C (49°F) and overnight lows of 1°C (34°F). Rainfall totals roughly 49 mm across 6.8 rainy days, and the sun shines about 7.3 hours per day with 9.9 hours of daylight mid-month. Relative humidity averages 74%.
In context: January is the coldest month of the year and the 11th-wettest in Osaka. The sunniest month is August (10.4 h/day).
| Metric | January average |
|---|---|
| Daytime high | 9°C / 49°F |
| Overnight low | 1°C / 34°F |
| Rainfall | 49 mm over 6.8 rainy days |
| Sunshine | 7.3 h/day (9.9 h daylight) |
| Humidity | 74% |
| Travel score | 4.8 / 10 |
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Osaka, Japan (34.69, 135.5) — see our methodology. Actual conditions vary year to year.
Not set on Osaka? Browse the best places to visit in January ranked by travel score.
Frequently asked questions
How hot is Osaka in January?
Daytime highs in Osaka in January average 9°C (49°F); nights drop to about 1°C.
Does it rain in Osaka in January?
Expect around 6.8 rainy days and 49 mm of rainfall in January.
Is January a good time to visit Osaka?
January is a challenging month to visit Osaka — consider April–May & October–November instead. Overall travel score: 4.8/10. The best months are April–May & October–November.
Where should you go next month?
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