May weather forecast
Tokyo, Japan

The cityscape of Tokyo, Japan, taken at dusk
The cityscape of Tokyo, Japan, taken at dusk

Weather in May

May, the last month of the spring in Tokyo, is an agreeable month, with an average temperature fluctuating between 22.8°C (73°F) and 16.1°C (61°F).

Temperature

In Tokyo, the average high-temperature in May rises from a comfortable 17.6°C (63.7°F) in April to a pleasant 22.8°C (73°F). In May, in Tokyo, the average low-temperature is 16.1°C (61°F).

Humidity

In May, the average relative humidity in Tokyo is 69%.

Rainfall

In Tokyo, during May, the rain falls for 10.3 days and regularly aggregates up to 31mm (1.22") of precipitation. Throughout the year, in Tokyo, there are 134.5 rainfall days, and 425mm (16.73") of precipitation is accumulated.

Snowfall

In Tokyo, snow does not fall in April through December.

Sea temperature

In Tokyo, the average seawater temperature in May is 17.8°C (64°F).
Note: For swimming, a surface water temperature of 17.8°C (64°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

The average length of the day in May in Tokyo, Japan, is 14h and 3min.
On the first day of the month, sunrise is at 04:49 and sunset at 18:27. On the last day of May, in Tokyo, sunrise is at 04:26 and sunset at 18:50 JST.

Sunshine

The average sunshine in May is 9.5h.

UV index

In Tokyo, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 in May interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the average humidity in May in Tokyo?

The average relative humidity in May in Tokyo, Japan, is 69%.

How much does it rain in Tokyo in May?

In May, the rain falls for 10.3 days. Throughout May, 31mm (1.22") of precipitation is accumulated.

When it does not snow in Tokyo?

April through December are months without snowfall in Tokyo, Japan.

What is the sea water temperature in May in Tokyo?

In Tokyo, Japan, in May, the average water temperature is 17.8°C (64°F). For swimming, a surface water temperature of 17.8°C (64°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Tokyo have in May?

The average day length in May is 14h and 3min.

When is the sunrise / sunset in May in Tokyo?

On the first day of May in Tokyo, sunrise is at 04:49 and sunset at 18:27. On the last day of the month, sunrise is at 04:26 and sunset at 18:50 JST.

How long on average sun shines in May in Tokyo?

In May, the average sunshine duration is 9.5h.

What is the UV index intensity in May in Tokyo?

In Tokyo, Japan, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in May
Tokyo, Japan

Average temperature in May - Tokyo, Japan
  • Average high temperature in May: 22.8°C

The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (8.9°C).

  • Average low temperature in May: 16.1°C

The month with the highest average low temperature is August (25.1°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).

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Average pressure in May
Tokyo, Japan

Average pressure in May - Tokyo, Japan
  • Average pressure in May: 1012mbar

The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

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Average wind speed in May
Tokyo, Japan

Average wind speed in May - Tokyo, Japan
  • Average wind speed in May: 13.9km/h

The windiest month (with the highest average wind speed) is April (15.3km/h).
The calmest month (with the lowest average wind speed) is November (12.1km/h).

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Average humidity in May
Tokyo, Japan

Average humidity in May - Tokyo, Japan
  • Average humidity in May: 69%

The month with the highest relative humidity is July (77%).
The month with the lowest relative humidity is January (59%).

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Average rainfall in May
Tokyo, Japan

Average rainfall in May - Tokyo, Japan
  • Average rainfall in May: 31mm

The wettest month (with the highest rainfall) is October (51mm).
The driest month (with the least rainfall) is December (21mm).

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Average rainfall days in May
Tokyo, Japan

Average rainfall days in May - Tokyo, Japan
  • Average rainfall days in May: 10.3 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in May
Tokyo, Japan

Average snowfall in May - Tokyo, Japan
  • Average snowfall in May: 0mm

The month with the highest snowfall is February (21mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).

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Average snowfall days in May
Tokyo, Japan

Average snowfall days in May - Tokyo, Japan
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average sea temperature in May
Tokyo, Japan

Average sea temperature in May - Tokyo, Japan
  • Average sea temperature in May: 17.8°C

The best month for swimming (with the highest average sea temperature) is August (25.7°C).
The coldest month (with the lowest average sea temperature) is February (14°C).

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Average daylight in May /
Average sunshine in May
Tokyo, Japan

Average daylight in May / Average sunshine in May - Tokyo, Japan
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 14h and 32min).
The month with the shortest days is December (Average daylight: 9h and 47min).

  • Average sunshine in May: 9h and 30min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).

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Average sunshine days in May
Tokyo, Japan

Average sunshine days in May - Tokyo, Japan
  • Average sunshine days in May: 18.8 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is June (14.4 days).

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Average UV index in May
Tokyo, Japan

Average UV index in May - Tokyo, Japan
  • Average UV index in May: 5

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 3).

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Average cloud cover in May
Tokyo, Japan

Average cloud cover in May - Tokyo, Japan
  • Average cloud cover in May: 35

The months with the most cloud cover are June and October (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 28).

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Average visibility in May
Tokyo, Japan

Average visibility in May - Tokyo, Japan
  • Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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