Normal weather for Japan in May
It's warm in May in Japan with an average temperature of 23°C. Temperatures this month range from a low of 19°C to a high of 26°C. At night, you can expect temperatures between 8°C and 14°C.
In May, there is an average of 85 mm of precipitation, spread over 12 days. The wind speed is around 4 Bft, mostly coming from the South.
Japan in May |
UK | ||
|---|---|---|---|
 Average Temperature |
23°C | 18°C | |
 High Temp |
26°C | 21°C | |
| Low Temp |
19°C | 15°C | |
 Total Precipitation |
85 mm | 46 mm | |
| Rainy Days |
12 days | 8 days | |
Start of May
The month of May starts in Japan with warm temperatures, averaging around 22°C during the day and nights close to 10°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers. A T-shirt, light trousers or skirt, and a light jacket are perfect for daytime. In the evening and morning, we recommend a light coat, jumper or cardigan, and long trousers.
Mid-May
By mid-May, the average daytime temperature rises to around 23°C, with nights close to 12°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
Temperatures vary between day and night, so it’s smart to wear layers. A T-shirt, light trousers or skirt, and a light jacket are perfect for daytime. In the evening and morning, we recommend a light coat, jumper or cardigan, and long trousers.
End of May
By the end of May, the average daytime temperature in Japan will be around 25°C, with nights close to 13°C. A shower might show up, but overall the weather will be dry and sunny.
As it gets cooler in the evening, it’s best to wear layers. A T-shirt, light trousers or skirt, and a light jacket are perfect for daytime. In the evening and morning, we recommend a light coat, jumper or cardigan, and long trousers.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit Japan?
Want nice weather? Then May is a great time to be in Japan. You’ll have pleasant temperatures and not too much rain this month.
The typhoon season in Japan runs from June to November.
Temperature records for Japan in May
With 31°C, Japan hit the highest temperature in the last 10 years in May 2023. The lowest daytime temperature in this month was 9°C in 2022. The extreme night temperatures ranged from a low of 1°C to a high of 20°C.
Check out the climate of Japan for all months and discover the best travel time
The climate of Japan is based on weather data from Tokyo. Other spots, like Kyōto, Osaka or Hokkaido, might have different weather. You can check out all destinations in Japan for a full picture of the climate.
April
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Daily Temperature in May in Japan
This chart shows the average daily temperatures, both day and night, for each day in May in Japan, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in May in Japan
The chart below shows the average daily precipitation in May for Japan, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 12 days of rain in Japan.
Daily UV Index in May in Japan
This chart shows the average daily UV index in May in Japan, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Japan Over the Years
This chart shows the average temperature in May in Japan, measured in degrees Celsius, over the past years.
Total Precipitation in May in Japan Over the Years
This chart shows the average precipitation in May in Japan, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for Japan
Click on a specific day in May for detailed info on the typical weather on that day in Japan. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Japan
Have you been to Japan in May?
Share your weather experience in May in Japan.
Average Weather in Japan by Month
Click on a month below to see detailed weather info for Japan. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
