Tokyo, Japan Climate & Monthly Averages
Tokyo has a humid subtropical climate. August is the hottest month, averaging 88° by day; January is the coldest at 48°.
Tokyo's climate is a story of contrasts
Tokyo runs one of the wider annual swings in our dataset: 23°C separates the average August from the average January. Afternoons reach 88°F (31°C) at the peak of summer and 48°F (9°C) at the depth of winter, with 137 days of measurable precipitation through the year.
August
88° by day 76° at nightJanuary
48° by day 32° at nightThe two ends of the year
January bottoms out at 48°F (9°C) in daylight, 32°F (0°C) after dark. August is the warm end of the year, averaging 88°F (31°C) by day and 76°F (24°C) overnight. The gridded 2015-2024 daily record for this location tops out at 103°F (39°C) and bottoms at 18°F (-8°C) - decade extremes, not all-time station records. Sunshine averages 8.1 hours a day over the year - duller than about 81% of the cities we track, peaking in August at 10.0 hours.
Average lows drop to freezing in one month of the year, January. Between the average August and the average January lie 23°C, a wider spread than roughly 76% of the cities we track.
More climate facts for Tokyo
- Hottest month: August - highs near 88°F (31°C)
- Coldest month: January - highs near 48°F (9°C)
- Decade extremes (2015-2024): 103°F (39°C) high · 18°F (-8°C) low
- Wettest month: September (15 rainy days) · Sunniest: August (10.0 h sun/day)
- Climate type: humid subtropical
- Annual swing: 23°C between the average warmest and coolest month · day to night: 8°C
- Snow: about 3 days a year
- Months averaging 30°C or hotter: 1
- Average humidity: 74%
Four distinct parts of the year in Tokyo
Spring (March through May)
Spring stays on the cool side of mild here - highs near 66°F (19°C), nights near 49°F (10°C), and rain falls on around 34 of the 90 days.
Summer (June through August)
Through summer, Tokyo runs hot: 84°F (29°C) by day, 71°F (22°C) after dark, and rain falls on around 46 of the 90 days. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
Fall (September through November)
Through fall, Tokyo is mild and warm: 71°F (22°C) by day, 58°F (14°C) after dark, and rain falls on around 37 of the 90 days.
Winter (December through February)
Winter runs cold here - highs near 50°F (10°C), nights near 34°F (1°C), and expect showers on roughly 19 days across the season, plus about 2 snowy days.
Tokyo temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.
Choosing a season in Tokyo
Best time to visit Tokyo
April to May and November to December is the sweet spot for Tokyo - warm days, manageable rainfall and plenty of daylight line up. Expect 61°F (16°C) in the afternoon and around 9 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in April.
What to pack
Pack for Tokyo with light clothing for the warm months, a warm jacket and layers for the cooler season and a compact umbrella or rain shell. Even in August, lows of 76°F (24°C) make an extra layer worth the space.
Monthly highs, lows and seasonal change
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 48° | 32° | 5 | 2.2 in | 7.8 h/day | 10.0 h | 17% | 66% |
| February | 51° | 34° | 7 | 2.2 in | 7.9 h/day | 10.8 h | 26% | 66% |
| March | 58° | 40° | 12 | 5.5 in | 8.1 h/day | 11.9 h | 38% | 69% |
| April | 65° | 49° | 12 | 5.2 in | 8.6 h/day | 13.1 h | 38% | 72% |
| May | 74° | 58° | 11 | 5.4 in | 8.9 h/day | 14.0 h | 36% | 74% |
| June | 79° | 65° | 15 | 7.5 in | 8.2 h/day | 14.6 h | 50% | 79% |
| July | 86° | 73° | 16 | 7.6 in | 8.7 h/day | 14.3 h | 52% | 81% |
| August | 88° | 76° | 14 | 5.7 in | 10.0 h/day | 13.5 h | 46% | 79% |
| September | 81° | 69° | 15 | 8.5 in | 7.4 h/day | 12.3 h | 51% | 81% |
| October | 71° | 58° | 12 | 7.6 in | 7.0 h/day | 11.2 h | 40% | 78% |
| November | 62° | 47° | 10 | 3.8 in | 7.3 h/day | 10.2 h | 32% | 75% |
| December | 53° | 36° | 7 | 2.4 in | 7.5 h/day | 9.7 h | 21% | 70% |
Tokyo from the coldest month to the hottest
Each card shows the average high and low. The bar places that month between Tokyo's coldest night and warmest afternoon.
January
- Rain
- 5 days
- Sunshine
- 7.8 h
- Daylight
- 10.0 h
- Snow
- 1 day
February
- Rain
- 7 days
- Sunshine
- 7.9 h
- Daylight
- 10.8 h
- Snow
- 1 day
March
- Rain
- 12 days
- Sunshine
- 8.1 h
- Daylight
- 11.9 h
April
- Rain
- 12 days
- Sunshine
- 8.6 h
- Daylight
- 13.1 h
May
- Rain
- 11 days
- Sunshine
- 8.9 h
- Daylight
- 14.0 h
June
- Rain
- 15 days
- Sunshine
- 8.2 h
- Daylight
- 14.6 h
July
- Rain
- 16 days
- Sunshine
- 8.7 h
- Daylight
- 14.3 h
August
- Rain
- 14 days
- Sunshine
- 10.0 h
- Daylight
- 13.5 h
September
- Rain
- 15 days
- Sunshine
- 7.4 h
- Daylight
- 12.3 h
October
- Rain
- 12 days
- Sunshine
- 7.0 h
- Daylight
- 11.2 h
November
- Rain
- 10 days
- Sunshine
- 7.3 h
- Daylight
- 10.2 h
December
- Rain
- 7 days
- Sunshine
- 7.5 h
- Daylight
- 9.7 h
Looking for warmer alternatives? Browse warm places by month, or compare Tokyo's coolest part of the year: January, February, December.
Where Tokyo sits among other climates
- Tokyo sits close to the middle of our dataset on most measures: 60°F (16°C) as an annual average, 63.6 inches (1615 mm) of precipitation and 8.1 hours of sun a day.
These comparisons use the same ten-year window for every city in the dataset.