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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

New York
Temperature Average Temperature
23°C 22°C
Sun High Temp
26°C 28°C
Sun Low Temp
19°C 17°C
Rain Total Precipitation
85 mm 105 mm
Rain 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. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.

With the temperature difference between day and night, it’s smart to wear layers. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.

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.

Since it cools down at night, it’s a good idea to wear layers. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.

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.

Because temperatures drop in the evening, wearing layers is recommended. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.

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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?

Looking for great weather? May is a good time to be in Japan. The temperatures are nice, and there’s not too much rain.

The typhoon season in Japan runs from June to November.

Temperature records for Japan in May

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.

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Daily Temperature in May in Japan

This chart shows the average daily high and low temperatures in May for Japan, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.

Daily Temperature in May in Japan

Daily Precipitation in May in Japan

The chart below shows the average daily precipitation in May for Japan, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 12 days of precipitation in Japan.

Daily Precipitation in May 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.

Daily UV Index in May in Japan

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 few years.

Temperature in May in Japan Over the Years

Total Precipitation in May in Japan Over the Years

This chart shows the average precipitation in May in Japan, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

Precipitation in May in Japan Over the Years

Daily Climate 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.

Weather experiences in May in Japan

Have you been to Japan in May?

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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.


Or check out the climate of Japan for all months at once

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