Tokyo
Japan
Long-term weather forecast
Long-term weather forecast
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May weather forecast and Climate
Tokyo, Japan

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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.
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  • The 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).

  • The 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).

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  • The 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%).

  • The 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).

  • The 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).

  • The 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).

  • The 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).

  • The 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).

  • The average daylight in May: 14h

The month with the longest days is June (Average daylight: 15h).
Months with shortest days are January, November and December (Average daylight: 10h).

  • The 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).

  • The 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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