What to pack for Osaka in August
- light, breathable clothing
- sun protection (hat, SPF 50)
- a compact umbrella or rain shell — rain is frequent
Humidity averages 75%; max daily wind around 25 km/h.
How August compares
Best months in Osaka: April–May & October–November. See the full best time to visit Osaka guide.
Osaka in August: the details
In August, Osaka sees average daytime highs of 33°C (91°F) and overnight lows of 26°C (78°F). Rainfall totals roughly 188 mm across 15 rainy days, and the sun shines about 10.4 hours per day with 13.3 hours of daylight mid-month. Relative humidity averages 75%.
In context: August is the warmest month of the year and the 5th-wettest in Osaka. The sunniest month is August (10.4 h/day).
| Metric | August average |
|---|---|
| Daytime high | 33°C / 91°F |
| Overnight low | 26°C / 78°F |
| Rainfall | 188 mm over 15 rainy days |
| Sunshine | 10.4 h/day (13.3 h daylight) |
| Humidity | 75% |
| Travel score | 3.3 / 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 August ranked by travel score.
Frequently asked questions
How hot is Osaka in August?
Daytime highs in Osaka in August average 33°C (91°F); nights drop to about 26°C.
Does it rain in Osaka in August?
Expect around 15 rainy days and 188 mm of rainfall in August.
Is August a good time to visit Osaka?
August is a challenging month to visit Osaka — consider April–May & October–November instead. Overall travel score: 3.3/10. The best months are April–May & October–November.
Also good in August, near Osaka
Where should you go next month?
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