Tokyo, Japan Weather
Tokyo hourly forecast: next 24 hours
Today's high of 72°F (22°C) is about 9°F (5°C) below the typical September high of 81°F (27°C).
Current conditions in detail
Tokyo weather tomorrow (Thursday, September 17)
Tomorrow in Tokyo looks patchy rain nearby, with a high of 73° and an overnight low of 67°. There is a 84% chance of rain - plan accordingly. Winds top out near 14 mph, and the UV index reaches 2 (low).
Tokyo 14-day forecast
About the weather in Tokyo
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.
Tokyo weather: quick facts
- 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%
Temperatures through 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.
Rain, sun and snow
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.
Season by season
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.
Average temperatures in Tokyo by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 48° | 32° | 5 | 2.2 in | 7.8 h/day | 66% |
| February | 51° | 34° | 7 | 2.2 in | 7.9 h/day | 66% |
| March | 58° | 40° | 12 | 5.5 in | 8.1 h/day | 69% |
| April | 65° | 49° | 12 | 5.2 in | 8.6 h/day | 72% |
| May | 74° | 58° | 11 | 5.4 in | 8.9 h/day | 74% |
| June | 79° | 65° | 15 | 7.5 in | 8.2 h/day | 79% |
| July | 86° | 73° | 16 | 7.6 in | 8.7 h/day | 81% |
| August | 88° | 76° | 14 | 5.7 in | 10.0 h/day | 79% |
| September | 81° | 69° | 15 | 8.5 in | 7.4 h/day | 81% |
| October | 71° | 58° | 12 | 7.6 in | 7.0 h/day | 78% |
| November | 62° | 47° | 10 | 3.8 in | 7.3 h/day | 75% |
| December | 53° | 36° | 7 | 2.4 in | 7.5 h/day | 70% |