The weather in May in Japan
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.
Looking for great weather? May is a good time to be in Japan. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Japan. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 31°C in 2023, Japan reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 9°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 1°C to a highest value of 20°C.
Rainfall amount
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.
Daily weather in May for Japan
Click on any day in May to get detailed info about the usual weather on that day in Japan. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Japan | New York | |
|---|---|---|
| Average temperature | 23°C | 22°C |
| Max. temperature | 26°C | 28°C |
| Min. temperature | 8°C | -5°C |
| Total precipitation | 85 mm | 105 mm |
| Rainy days | 12 days | 14 days |
Start of May
The month of May starts in Japan with warm temps, averaging around 22°C during the day and nights around 10°C.
Mid May
By mid-May, daytime temps rise to around 23°C, with nights around 12°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of May
By the end of May, the average daytime temperature in Japan is around 25°C, while nighttime temps are about 13°C. A shower might pop up, but overall, the weather will be dry and sunny.
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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.
The typhoon season in Japan runs from June to November.
Check out the climate of Japan for all months and discover the best travel time
The climate in Japan is based on weather data from Tokyo. Other places, like Kyōto, Osaka or Hokkaido, might have different weather. You can check out all destinations in Japan to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in May in Japan. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Japan
Temperature in May in Japan over the years
Precipitation charts
These charts show the average amount of precipitation in May in Japan. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Japan
Total precipitation in May in Japan over the years
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.
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.