Weather in Osaka in May 2025
Average weather
Average temperature in Osaka in May
The expected average maximum temperature in May is +22°C with a maximum of +30°C and a minimum of +6°C.
The average maximum temperature goes up 8% by the end of the month, compared with the beginning of the month, from +20°C to +22°C.
Is Osaka warm or cold in May?
Osaka is typically mild in May.
Maximum temperatures go up compared to the previous month from +17°C to +22°C. The minimum temperature also goes up from +8°C to +13°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how May is compared to other months in Osaka:
Climate in Osaka in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +17°C | +22°C | +25°C | ||||
| Min. temperature | ||||||
| -3°C | +1°C | +6°C | ||||
| Max. temperature | ||||||
| +27°C | +31°C | +33°C | ||||
| Rainfall | ||||||
| 128 mm | 156 mm | 199 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 1 m/s | ||||
| Humidity | ||||||
| 68% | 71% | 76% | ||||
| Air pressure | ||||||
| 1015 HPa | 1012 HPa | 1008 HPa | ||||
| Sunny days | ||||||
| 4 | 3 | 1 | ||||
| Cloudy days | ||||||
| 11 | 12 | 10 | ||||
| Rainy days | ||||||
| 15 | 16 | 19 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May typically has worse weather conditions compared to April. It’s getting warmer as May arrives. The average maximum temperature goes up from +17°C to +22°C during the day. Prepare for more rain. Average rainfall goes from 128 mm to 156 mm. Humidity rises from 68% to 71%. The average wind speed doesn’t change much during May, staying around 2 m/s. The days becoming less sunny, going from 4 sunny days in April to 3 in May.
June brings much the same weather, it remains ok.
Wind
The average wind speed is 2 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Osaka is gradually decreasing during May, going from 3 m/s to 1 m/s over the course of the month.
Rain
How was the weather last May in Osaka?
Climate Change over Years
The climate in Osaka in May has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+17°C) and the highest in 2023 (+20°C). The driest year was 1994 with only 846 mm of rainfall, and the wettest year was 1993 with 1901 mm.
FAQ
Is May a good time to visit Osaka?
Can you sunbathe in Osaka in May?
Is Osaka rainy in May?
Is it sunny in Osaka in May?
Other cities in Japan
Monthly weather in Osaka
Source of the data
For this page, we’ve looked at the typical weather in Osaka, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.