Long-term weather forecast
Long-term weather forecast

Monthly 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
Tokyo, the lovely coastal capital city of Japan, experiences a humid subtropical climate classified as Cfa under the Köppen climatic classification. The summers are characterized by hot, humid, and wet weather, while the winters are moderately wet and cold. Monsoons affect the climate of Tokyo and may cause irregular fluctuations during the monthly weather. Four distinct seasons are experienced in Tokyo in equal divisions throughout the year.

Spring is strikingly beautiful in Tokyo, especially when the flowers are in full bloom. The trees grow shades, and the grass turns green, making the environment attractive with moderately warm temperatures. Tokyo records high numbers of tourists coming to witness the beautiful scenery of spring. Rainfall is typical in the afternoon hours but the days remain warm even with the rain. However, the nights and early mornings record low temperatures and can be chillier during the first few weeks into spring.

Summer in Tokyo runs from June through August and is characterized by oppressive humidity and extremely high temperatures, with the hottest days going as high as 40°C (104°F). Most of the year's rainfall is experienced in summer, and on the rainiest days, the rain gauge collects precipitation of up to 180.3mm (7.1") on average.
Tourists flock Tokyo for the warm temperatures and the high ocean temperatures for a swim and later basking in the sun.

The beautiful autumn colors are witnessed from mid-September through November, making the city appear golden and beautiful. The sight of the shady trees and falling leaves is breathtaking with the warm and pleasant temperatures experienced. However, the weather remains unpredictable, with rainfall being experienced occasionally and the sun shining for up to five hours per day. The ocean temperatures in autumn remain moderately warm, averaging 23°C (73.4°F), making swimming in the ocean an everyday luxury all through the season. September is mainly known for high occurrences of typhoons, which can cause significant damage when intense hence, precaution is advised.

Winter temperatures are extremely cold. Tokyo winter time lasts between December and February. At night it gets worse with temperatures almost hitting the freezing point. Cold winds are rampant in winter and make the weather even colder. Snow is experienced for minimal days during winter and may vary in intensity every other year. The winter season in Tokyo has more sunshine hours than the other seasons making it mildly warm despite the low temperatures. Outdoor activities may be minimal, but skating in the snow remains the best activity in winter.

The best time to visit Tokyo is during spring and autumn. These periods record relatively manageable crowds in all the spots making touring the city easy and enjoyable. Accommodations and flights are available and reasonably priced. The weather generally stays pleasant with mildly warm temperatures and moderate humidity. The ocean temperature makes it possible to enjoy swimming in the waters as it is moderately warm, and the sun shines steadily across most days resulting in warm, lovely weather.
In spring, the beautiful blossoms give Tokyo a magnificent sight even at night. Autumn has fresh, crisp air and a beautiful fall that makes visiting parks a great experience with the golden color looming in the air with warm, steady sunshine on most days.

Unfortunately for some, summer is the worst time to visit Tokyo. The warm temperatures attract high numbers of tourists, and as schools are closed for holidays, it gets worse with crowds. Visiting the parks, museums, and other historic spots become limited, with the long queues from the large crowds attending. Prices for most services increase with the demand, and it results in flights, accommodation, and park fees getting hiked along with most hotels remaining fully booked.
The temperatures stay high and constant throughout the entire season, and on the hottest days, they become oppressive and may not make a good time for outdoor activities. The rainfall comes with more interruptions to tours in Tokyo, especially when accompanied by thunderstorms and strong winds.

The heavy rains in summer may result in flash floods in Tokyo that may bring serious damages if in high intensity. Rainfall may be accompanied by thunderstorms that can cause harm or result in the death and damage to property.
The month of September experiences significant typhoons. These tropical cyclones have been known to bring strong winds and heavy torrential rains that cause massive damage.

January is a cold month in Tokyo. The lowest temperatures average 2°C (35.6°F), while the highest average 8°C (46.4°F). Cold winds blow in January, making the weather feel even colder, especially at night when temperatures go way below the freezing point. Weather in January »

February remains cold with temperatures steady within the range of 2°C (35.6°F) and 9°C (48.2°F). Expect chilly winds and even lower temperatures at night, but mildly cold weather in the day. Weather in February »

There is a rise in the temperatures to read between 5°C (41°F) and 12°C (53.6°F), although it feels colder and chiller in the first week closest to winter. The nights are cold and chilly, but the cold winds reduce considerably. Weather in March »

The cherry blossoms and plum blossoms are breathtaking. The air smells wonderful, and it is a great time to be outdoors in the parks and sightseeing spots. The weather remains lovely with temperatures rising to a warm range from lowest averages of 10°C (50°F) to warmest averages of 17°C (62.6°F). Weather in April »

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. Weather in May »

Summer temperatures rise to read between 18°C (64.4°F) and 24°C (75.2°F), making the weather pleasantly warm for most outdoor activities including swimming in the ocean whose temperatures rise to 22°C (71.6°F). Weather in June »

July is one of the hottest months in Tokyo with scorching temperatures between 22°C (71.6°F) and 28°C (82.4°F). The hottest days can have temperatures as high as 33°C (91.4°F). Weather in July »

August is the peak of summer and characterized by the highest temperatures of the year. The lowest average reads 23°C (73.4°F) and the highest 29°C (84.2°F), making it the hottest and most oppressive month as the temperatures may go up to 35°C (95°F). Weather in August »

The temperatures average 20°C (68°F) on the coldest days and 26°C (78.8°F) on the warmest days making it moderately warm especially with a reduction in the sunshine hours to four per day. Weather in September »

In October, Tokyo experiences the wonderful fall season; The entire city appears golden, and the sight of the trees falling their leaves is beautiful. The air is crisp and fresh, and a golden appearance hangs around the city. Weather in October »

November forms the transition into winter with temperatures dropping further to read between 9°C (48.2°F) and 15°C (59°F) sometimes getting colder than that. Chilly winds set in making the evenings and early mornings quite chilly. Weather in November »

Winter sets in December bringing the temperatures in Tokyo to low averages between 4°C (39.2°F) and 11°C (51.8°F). These can go lower, especially on the extremely windy days and nights. Weather in December »

What is the coldest month in Tokyo?

The coldest month is January, with an average high-temperature of 9.6°C (49.3°F) and an average low-temperature of 0.9°C (33.6°F).

What is the least humid month in Tokyo?

With an average relative humidity of 52%, January is the least humid month in Tokyo.

How many days does it rain in Tokyo?

Throughout the year, there are 128 rainfall days, and 1292.6mm (50.9") of precipitation is accumulated.

When does it snow in Tokyo?

Months with snowfall are January through March.

How much does it snow in Tokyo?

Throughout the year, in Tokyo, there are 9.7 snowfall days, and 110mm (4.3") of snow is accumulated.

What is the snowiest month in Tokyo?

Months with the most snowfall are January and February, with an average 50mm (2") of accumulated snow.

What month has the most sunshine in Tokyo?

With an average of 6h of sunshine, January has the most sunshine of the year.

What are the months with the lowest UV index in Tokyo?

Months with the lowest UV index in Tokyo, Japan, are January and December, with an average maximum UV index of 2.

What is the driest month in Tokyo?

The month with the least rainfall in Tokyo is February when the rain falls for 9.1 days and typically collects 58.2mm (2.3") of precipitation.

What month is the sea coldest in Tokyo?

With an average sea temperature of 14°C (57.2°F), February is the month with the coldest seawater in Tokyo.

When it does not snow in Tokyo?

In Tokyo snow does not fall in April through December.

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.

When are the longest days in Tokyo?

With an average of 14.5h of daylight, June has the longest days of the year in Tokyo, Japan.

When is the highest UV index in Tokyo?

June through August, with an average maximum UV index of 10, are months with the highest UV index.

What is the most humid month in Tokyo?

July is the most humid month in Tokyo, Japan, with an average relative humidity of 77%.

What is the warmest month in Tokyo?

The warmest month is August, with an average high-temperature of 30.8°C (87.4°F) and an average low-temperature of 23°C (73.4°F).

What month is the sea warmest in Tokyo?

The month with the warmest seawater in Tokyo is August, with an average sea temperature of 25.7°C (78.3°F).

What is the month with the least sunshine in Tokyo?

The month with the least sunshine is September, with an average of 4h of sunshine.

What is the month with the shortest days in Tokyo?

December has the shortest days of the year in Tokyo, with an average of 9.8h of daylight.
Average rainfall - Tokyo, Japan

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 - Tokyo, Japan

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 - Tokyo, Japan

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 - Tokyo, Japan

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 - Tokyo, Japan

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 / Average sunshine - Tokyo, Japan