Osaka Prefecture weather

Our guide to the weather in Osaka Prefecture during May

24

Average high

5

UV Index

93mm

Monthly rainfall

69%

Humidity

We've looked at the most up-to-date weather data for Osaka Prefecture, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Osaka Prefecture weather in May.

How warm is it in Osaka Prefecture during May?

The temperature reaches around 24℃ during the daytime in May, falling away to 15℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in Osaka Prefecture during May?

On average, there will be 6 rainy days during the month, amounting to 92.8mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. You're not likely to see a thunderstorm during your trip.

Is it windy in Osaka Prefecture during May?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in May. With moderate humidity and mild air temperatures, the breeze will have a slight cooling effect.

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Weather in Osaka Prefecture

Our month-by-month guide to the weather and climate in Osaka Prefecture

8.4

Osaka Prefecture weather in

January
9.8

Osaka Prefecture weather in

February
13.8

Osaka Prefecture weather in

March
18.6

Osaka Prefecture weather in

April
23.9

Osaka Prefecture weather in

May
27.2

Osaka Prefecture weather in

June
30.8

Osaka Prefecture weather in

July
32.8

Osaka Prefecture weather in

August
29.0

Osaka Prefecture weather in

September
23.1

Osaka Prefecture weather in

October
17.4

Osaka Prefecture weather in

November
10.9

Osaka Prefecture weather in

December