Tokyo, Japan – Climate and Average Weather Year Round Explained

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Tokyo, Japan’s capital, offers a climate that varies greatly throughout the year.

Summers are short, warm, muggy, and often wet with temperatures ranging from 36°F to 87°F, while winters are cold and mostly clear, rarely dropping below 31°F.

This creates a unique weather pattern that attracts visitors year-round.

In the winter months, temperatures can be particularly chilly, with typical lows around 36°F.

The city experiences a mix of sunny and clear days, making it a popular season for those who enjoy crisp and bright winter weather.

Conversely, the summer months bring warmth, humidity, and higher precipitation, with temperatures soaring up to 93°F on the hottest days.

When planning a visit to Tokyo, timing is key.

For those who prefer milder conditions, spring or autumn may be the best times to experience the city.

These seasons offer more temperate weather and lower humidity levels, providing a comfortable climate for exploring the vibrant urban landscape.

Average Temperature in Tokyo, Japan

Tokyo experiences varying temperatures throughout the year. Winters are generally mild, while summers can be quite hot.

Monthly Average Temperatures

Month Average High (°F) Average Low (°F)
January 49 37
February 50 38
March 57 43
April 66 52
May 74 60
June 80 67
July 86 73
August 86 76
September 80 70
October 71 60
November 61 50
December 52 41

Seasonal Changes

January is the coldest month with low temperatures averaging 37°F.

February sees similar temperatures, with values rising as winter progresses.

March brings more pleasant weather, with temperatures increasing to 57°F on average.

April and May continue this trend, making spring very mild and enjoyable.

July and August are the hottest, with average high temperatures around 86°F.

Nights remain warm, making these months quite hot and humid.

September cools slightly, with highs around 80°F.

October brings more comfortable highs of 71°F, making early fall a pleasant time in Tokyo.

November and December cool further, leading back into the mild winter months. Winters in Tokyo are generally not harsh, and temperatures rarely drop below 37°F.

This pattern of mild winters and hot summers shapes the overall climate, making Tokyo a city with noticeable, yet manageable seasonal changes.

Average Precipitation in Tokyo, Japan

Tokyo experiences a variety of precipitation throughout the year, with significant rainfall and occasional snow. This section provides detailed information about the rainfall and snow patterns in Tokyo.

Average Rainfall in Tokyo, Japan

Tokyo gets most of its rainfall during the summer months, especially in June, July, and September. The wettest month is October, with about 5.22 inches of rain.

Here’s a table showing the average monthly rainfall:

Month Rainfall (inches)
January 1.8
February 2.4
March 3.4
April 4.1
May 4.7
June 5.5
July 5.0
August 5.2
September 5.4
October 5.22
November 3.5
December 2.2

Rain in Tokyo is often heavy and can lead to slow-moving storms.

The summers are very humid, adding to the discomfort during the rainy season.

Average Snow in Tokyo, Japan

Snowfall in Tokyo is less common. The city gets light snow in the colder months, usually from January to March. January has the average snowfall with occasional snow storms.

Here’s a quick look at average monthly snowfalls:

Month Snowfall (inches)
January 2.0
February 2.5
March 0.5

These snowy periods are short, and the snow rarely stays on the ground for long. Snow in Tokyo usually melts quickly and does not cause significant disruptions

Average Sun in Tokyo, Japan

Tokyo experiences varying amounts of sunshine throughout the year. With changes in seasons, hours of daylight and sunshine also shift.

Average Daily Shortwave Solar Energy in Tokyo, Japan

Tokyo receives an average of 4.5 kilowatt-hours per square meter of shortwave solar energy daily. This amount fluctuates, peaking in spring and summer. The table below outlines the average solar energy received by month:

Month Energy (kWh/m²)
January 2.5
February 3.3
March 4.1
April 5.3
May 5.9
June 5.6
July 5.9
August 5.2
September 4.7
October 4.2
November 3.1
December 2.4

Sunshine hours and cloud cover impact the delivery of solar energy.

In summer, sunny days are more frequent, leading to higher energy intake.

Winter months receive less sunlight, due to shorter days and increased cloudiness.

This consistent yearly pattern influences daily life and energy use in the city, with peaks and lows predictable each season.

Average Humidity in Tokyo, Japan

Tokyo’s climate is classified as humid subtropical. This means the city experiences hot, humid summers and mild winters.

Monthly Humidity Levels

The monthly relative humidity in Tokyo varies throughout the year. On average, July is the most humid month, while January is the least humid month.

Month Average Humidity (%)
January 50%
February 53%
March 55%
April 59%
May 63%
June 70%
July 76%
August 75%
September 73%
October 68%
November 61%
December 55%

July stands out with the highest average humidity at 76%. In contrast, January is the least humid month with an average relative humidity of 50%.

Annual Humidity

The average annual humidity in Tokyo is around 64%.

This consistent humidity contributes to the muggy feeling, especially during the summer months.

Climate Context

Tokyo’s climate is temperate overall, being hot and wet during the summer season. This combination of high humidity and warm temperatures defines the city’s humid subtropical climate.

The reader can explore more details about Tokyo’s average humidity and its effect on the climate here.

Average Wind in Tokyo, Japan

Wind patterns in Tokyo vary throughout the year.

Monthly Wind Speeds

Month Average Wind Speed
January 17 mph
February 16 mph
March 16 mph
April 16 mph
May 15 mph
June 15 mph
July 14 mph
August 14 mph
September 15 mph
October 15 mph
November 17 mph
December 17 mph

These wind speeds mostly range between 14 to 17 mph.

Seasonal Wind Variations

  • Winter: Wind speeds are highest. January and December both average 17 mph.
  • Spring: Winds continue at around 16 mph.
  • Summer: Winds lessen to about 14 mph in July and August.
  • Fall: Winds pick up back to 15 mph in October and 17 mph in November.

Wind speeds significantly affect daily weather conditions in Tokyo. Consistent winds from the sea bring changes in temperature and precipitation.

For more about general wind information, it provides insights into different types of wind and wind speeds. These stable wind patterns are key to Tokyo’s unique climate.

Understanding wind speeds can help in planning outdoor activities or travel in and around Tokyo. Different seasons bring unique experiences due to these variations in wind.

Average Air Quality in Tokyo, Japan

Air quality in Tokyo generally falls within the “good” category based on PM2.5 readings. PM2.5 refers to fine particulate matter in the air, which can be harmful when levels are high.

Annual PM2.5 Levels:

  • Average PM2.5: 11.7 µg/m³
  • Quality Rating: Good

Tracking air quality is crucial for residents and visitors. The Localized Air Quality Index (AQI) measures the presence of pollutants.

Key Pollutants Monitored:

  • PM2.5: Fine particles
  • Nitrogen Dioxide (NO2)
  • Ozone (O3)

The hottest month, August, typically sees more pollution due to higher temperatures and stagnant air. In contrast, colder months might have better air quality.

Tokyo’s air quality is influenced by various factors such as humid currents and cold currents from the surrounding seas. The UV index also plays a role in air quality changes.

Monthly Average Pollutant Levels:

Month PM2.5 (µg/m³) NO2 (ppm) O3 (ppm)
January 10.5 0.018 0.020
April 12.0 0.020 0.025
July 13.0 0.022 0.030
October 11.2 0.019 0.022

Real-time data for Tokyo’s air quality can be found on various platforms like IQAir and AccuWeather. These platforms provide updates and forecasts, helping people plan their outdoor activities.

Topography of Tokyo, Japan

Tokyo, situated on the eastern coast of Honshu, covers a diverse range of terrains. The city is mostly flat, lying on the Kanto Plain, but also has hilly areas, adding to its varied landscape.

Latitude: Tokyo is located at approximately 35 degrees North. This position influences its mild climate and distinguishes its seasons clearly.

Mountains

While Tokyo itself is largely urban and flat, the western part of the metropolis extends into more mountainous regions. Mount Takao, for example, is a popular recreational area for hiking and enjoys a beautiful natural setting.

Rivers and Water Bodies

The Sumida River runs through the heart of Tokyo, offering scenic views and areas for leisure activities. Tokyo Bay borders the city’s southeast, providing crucial ports and economic benefits.

Coastal Features

Tokyo’s proximity to the Pacific Ocean and Tokyo Bay means it has several coastal and waterfront areas. This access has historically been vital for trade and transportation.

Urban Structuring

The sprawling urban area intersects with parks and green spaces, balancing natural and built environments. Prominent parks like Ueno Park and Meiji Jingu bring nature into the urban center.

Elevation Range

Most of Tokyo’s metropolitan area sits at low elevations, typically close to sea level. However, as you move westward, the elevation increases, reaching up to 2,017 meters (6,617 feet) at Mount Kumotori.

Extreme Weather Events That Occur in Tokyo, Japan

Tokyo experiences a variety of extreme weather events throughout the year.

Typhoons

Tokyo is frequently affected by typhoons, especially from August to October. These storms bring strong winds and torrential rains, sometimes causing flooding and damage.

Heavy Rainfall

During the rainy season, which typically occurs in June and July, Tokyo can see very heavy rain due to monsoon circulation. Rainfall during this period can exceed 10 inches.

Month Average Rainfall (inches)
June 7.8
July 5.9

Extreme Heat

Tokyo has been experiencing record-breaking heat. In July 2024, temperatures soared to new highs. Daily highs have reached up to 105°F, making it the hottest July since records began.

For more details, you can refer to this report on Japan’s hottest July.

Winter Weather

Although not as frequent, Tokyo does occasionally experience ice and snow. During the winter months, Tokyo can see temperatures drop below freezing, resulting in bad weather conditions like icy roads and transportation delays.

Tropical Origins

Some of the extreme weather, like typhoons, originate from the tropics. These systems can bring high winds and heavy rainfall to the region.

Best Time of the Year to Visit Tokyo, Japan

The best time to visit Tokyo largely depends on personal preferences, with each season offering distinct experiences. Spring and fall boast the most comfortable weather and beautiful scenery, while summer and winter bring their own unique appeals.

What Is Tokyo, Japan Like in Spring

Spring in Tokyo, from March to May, is famous for cherry blossoms. Temperatures range from 50°F to 68°F, making it perfect for outdoor activities. Cherry blossoms typically peak in late March to early April, drawing many visitors to parks and gardens.

Rainfall averages about 4 inches per month, so packing a light raincoat is wise. Spring also sees numerous festivals, such as the Ueno Cherry Blossom Festival, adding cultural vibrancy to the pleasant weather.

Month Average High Average Low Rainfall
March 55°F 41°F 3.7 in
April 64°F 50°F 4.6 in
May 73°F 59°F 5.6 in

What Is Tokyo, Japan Like in Summer

Summer in Tokyo, from June to August, is hot and humid. Temperatures often reach 88°F in August. Rainfall is highest in June, averaging 6.7 inches, due to the rainy season. July and August are less wet but can still see unexpected showers.

Despite the heat, summer is lively with festivals like the Sumida River Fireworks. Light, breathable clothing is a must. Staying hydrated and taking breaks indoors can make visits more comfortable during this season.

Month Average High Average Low Rainfall
June 77°F 64°F 6.7 in
July 84°F 72°F 5.5 in
August 88°F 75°F 5.4 in

What Is Tokyo, Japan Like in Fall

Fall, from September to November, offers cooler temperatures and stunning foliage. Daytime highs range from 77°F in September to 59°F in November. Fall is also dryer compared to summer, with rainfall averaging about 4-5 inches per month.

This season is ideal for exploring parks and gardens, as the trees turn vibrant shades of red and orange. Comfortable weather makes it a great time for walking tours and outdoor dining.

Month Average High Average Low Rainfall
September 77°F 68°F 8.1 in
October 68°F 57°F 5.2 in
November 59°F 46°F 3.1 in

What Is Tokyo, Japan Like in Winter

Winter in Tokyo, from December to February, is cold but generally dry.

Average daily highs are around 50°F, with lows near 36°F. Snow is rare and usually light, making it easy to navigate the city.

Clear skies are common, providing excellent visibility for sightseeing. Winter illuminations and events like the New Year festivities add charm to the season.

Warm clothing and layers are recommended to stay comfortable.

Month Average High Average Low Rainfall
December 54°F 37°F 1.8 in
January 50°F 36°F 2.0 in
February 52°F 36°F 2.2 in
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