What to pack for Osaka in May
- t-shirts and light layers
- a light jacket for evenings
- a compact umbrella or rain shell — rain is frequent
Humidity averages 74%; max daily wind around 24 km/h.
How May compares
Best months in Osaka: April–May & October–November. See the full best time to visit Osaka guide.
Osaka in May: the details
In May, Osaka sees average daytime highs of 23°C (73°F) and overnight lows of 14°C (57°F). Rainfall totals roughly 206 mm across 12 rainy days, and the sun shines about 9.2 hours per day with 13.8 hours of daylight mid-month. Relative humidity averages 74%.
In context: May is the 6th-warmest month and the third-wettest in Osaka. The sunniest month is August (10.4 h/day).
| Metric | May average |
|---|---|
| Daytime high | 23°C / 73°F |
| Overnight low | 14°C / 57°F |
| Rainfall | 206 mm over 12 rainy days |
| Sunshine | 9.2 h/day (13.8 h daylight) |
| Humidity | 74% |
| Travel score | 8.7 / 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 May ranked by travel score.
Frequently asked questions
How hot is Osaka in May?
Daytime highs in Osaka in May average 23°C (73°F); nights drop to about 14°C.
Does it rain in Osaka in May?
Expect around 12 rainy days and 206 mm of rainfall in May.
Is May a good time to visit Osaka?
May is one of the best months to visit Osaka. Overall travel score: 8.7/10. The best months are April–May & October–November.
Also good in May, near Osaka
Where should you go next month?
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