May · Japan
Best time to visit Osaka in May Weather, crowds & prices
Weather in Osaka in May
Average temperature 17°C, 242 mm of rain, about 24 days with 6+ hours of sunshine and 80% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
6.0/10
Ranked #3 of 12 months
- Avg temp
- 17°C
- Rainfall
- 242 mm
- Humidity
- 80%
- Days with 6h+ sun
- 24
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Osaka scores 6.0/10 for sightseeing and cultural travel - one of the top 12-month picks (#3). Expect around 17°C, 242 mm of rain, and roughly 24 days with 6+ hours of sunshine this month.
Street-food neon, castle grounds, and canal nights peak from May through September.
May in Osaka: mixed conditions, plan around the weather
Temperatures hover around 17°C (62°F) — the kind of month where neither heat nor cold forces the schedule.
This is the year's wettest stretch at 242 mm, but with about 24 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.
That is 6/10 on the same scale — 3rd of 12 months, versus 6.2/10 for the best month here.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
Budget for mid-season pricing, and crowds are moderate.
Frequently asked
- What is the weather like in Osaka in May?
- In May, Osaka averages 17°C, 242 mm of rain, and about 24 days with 6+ hours of sunshine. Its climate-comfort score is 6.0/10.
- Is May a good time to visit Osaka?
- May earns a 6.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Osaka in May?
- Expect about 242 mm of rain in May. Average humidity is 80% and there are about 24 days with 6+ hours of sunshine.
Curated in Osaka
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Osaka, Japan. Live activities and tours from GetYourGuide, matched to this destination.