Monthly climate guide
Osaka weather in May
With highs near 23°C (73°F) and lows around 12°C (54°F), May feels warm in Osaka. Rainfall averages about 142 mm (wet) and the sky is often cloudy. Daytime highs are 5°C warmer than April and 3°C cooler than June.
What stands out in May
- Keep a flexible plan: if showers roll in, shift Kuromon Ichiba Market to a drier part of the day.
- In Osaka, May is late spring.
- Osaka is usually about 2°C warmer than Fukui, 170 km away, in May.
- Evenings cool off sharply: the daily range is around 11°C, so pack a layer.
Avg high
23°C
73°F
Avg low
12°C
54°F
Rainfall
142 mm
wet
Humidity
78%
relative
Sky
63%
cloud · often cloudy
Osaka weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 7°C / 44°F | -1°C / 31°F | 59 mm | 83% | 66% |
| February | 8°C / 47°F | 0°C / 31°F | 75 mm | 81% | 67% |
| March | 12°C / 54°F | 2°C / 36°F | 108 mm | 79% | 61% |
| April | 18°C / 64°F | 7°C / 44°F | 147 mm | 78% | 61% |
| May | 23°C / 73°F | 12°C / 54°F | 142 mm | 78% | 63% |
| June | 25°C / 78°F | 17°C / 62°F | 237 mm | 83% | 79% |
| July | 29°C / 84°F | 22°C / 71°F | 243 mm | 85% | 74% |
| August | 30°C / 87°F | 23°C / 73°F | 190 mm | 83% | 62% |
| September | 27°C / 80°F | 19°C / 65°F | 265 mm | 84% | 69% |
| October | 21°C / 70°F | 12°C / 54°F | 208 mm | 84% | 61% |
| November | 16°C / 60°F | 7°C / 44°F | 84 mm | 83% | 58% |
| December | 9°C / 49°F | 1°C / 34°F | 72 mm | 83% | 65% |
What to pack for May
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is May a good time to visit Osaka?
Our Osaka guide recommends: March to May or October to November, avoiding the hot, humid summer.
Osaka is widely considered Japan's best city for street food — look for takoyaki and okonomiyaki at casual stalls in Dotonbori.
Best time to visit Osaka →Other Japan cities in May
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Osaka weather in May. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/japan/osaka/may
<a href="https://weathercompare.eu/weather/japan/osaka/may">Osaka weather in May</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/japan/osaka" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Osaka weather in May"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/japan/osaka/may">Osaka weather in May</a> – WeatherCompare</p>
Osaka in May: quick answers
Is May a good time to visit Osaka?
Yes. May is one of the best months for Osaka, with highs around 23°C and about 142 mm of rain.
How warm is Osaka in May?
Average highs are about 23°C (73°F) and average lows about 12°C (54°F), based on 10 years of daily data.
Does it rain a lot in Osaka in May?
Osaka typically gets around 142 mm of rain in May — wet.
When is the best time to visit Osaka?
March to May or October to November, avoiding the hot, humid summer.
Figures are long-term averages for the area around Osaka (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.