May weather forecast and climate
Tokyo, Japan

A stunning view of the cityscape of Tokyo, Japan, taken at dusk
A stunning view of the cityscape of Tokyo, Japan, taken at dusk
In May, Tokyo is more pleasant and is characterized by a rise in temperatures to read between 14°C (57.2°F) and 21°C (69.8°F). Basking under the sun feels much better in the five daily hours of sunshine. The days remain warm and pleasant, and the air fresh and scented, making the parks the best place to be.
The ocean temperatures warm up to 20°C (68°F) and start to receive more crowds on the beaches.
There may be interruptions in the afternoon due to expected showers of rain. With moderately high precipitation of 132.1mm (5.2"), the rain in May falls for an average of sixteen days, making it somewhat wet but still warm and pleasant.

What is the temperature in May in Tokyo?

In Tokyo, in May, the average high-temperature is 22.9°C (73.2°F), and the average low-temperature is 14°C (57.2°F).

What is the average humidity in May in Tokyo?

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

How much does it rain in Tokyo in May?

In May, in Tokyo, the rain falls for 11.7 days. Throughout May, 145.4mm (5.7") of precipitation is accumulated.

What is the wettest month in Tokyo?

The month with the most rainfall is May when the rain falls for 11.7 days and typically aggregates up to 145.4mm (5.7") of precipitation.

What is the sea water temperature in May in Tokyo?

In Tokyo, 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).

What is the average length of the day in May in Tokyo?

The average length of the day in May in Tokyo is 14.1h.

How many hours of sunshine does Tokyo have in May?

In May, the average sunshine in Tokyo is 5.4h.

What is the UV index intensity in May in Tokyo?

In May, the average UV index in Tokyo is 9.
Average temperature in May - Tokyo, Japan
  • Average high temperature in May: 22.9°C

The warmest month (with the highest average high temperature) is August (30.8°C).
The month with the lowest average high temperature is January (9.6°C).

  • Average low temperature in May: 14°C

The month with the highest average low temperature is August (23°C).
The coldest month (with the lowest average low temperature) is January (0.9°C).

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 (52%).

Average rainfall in May - Tokyo, Japan
  • Average rainfall in May: 145.4mm

The wettest month (with the highest rainfall) is May (145.4mm).
The driest month (with the lowest rainfall) is February (58.2mm).

Average rainfall days in May - Tokyo, Japan
  • Average rainfall days in May: 11.7 days

The month with the highest number of rainy days is October (13 days).
The month with the lowest number of rainy days is July (8.4 days).

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

Months with the highest snowfall are January and February (50mm).
Months with the lowest snowfall are April, May, June, July, August, September, October, November and December (0mm).

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 (3.7 days).
Months with the lowest number of snowfall days are May, June, July, August, September, October and November (0 days).

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).

Average daylight in May / Average sunshine in May - Tokyo, Japan
  • Average daylight in May: 14.1h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).

  • Average sunshine in May: 5.4h

The month with most sunshine is January (Average sunshine: 6h).
The month with least sunshine is September (Average sunshine: 4h).

Average UV index in May - Tokyo, Japan
  • Average UV index in May: 9

Months with the highest UV index are June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 2).

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