Best Time to Visit Tokyo
The best time to visit Tokyo is May and August, when the average temperature is 18–26°C and rainfall is low for Tokyo, at 136–138 mm a month.
Tokyo weather by month
The wettest month in Tokyo is October with 225 mm of rain, and the warmest is August at an average 26°C. The coolest is January at 6°C.
| Month | Average temperature | Rainfall | Verdict |
|---|---|---|---|
| January | 6°C / 42°F | 69 mm | Cool |
| February | 6°C / 43°F | 62 mm | Cool |
| March | 9°C / 48°F | 106 mm | Cool |
| April | 13°C / 56°F | 122 mm | Cool |
| May | 18°C / 64°F | 136 mm | Best |
| June | 21°C / 70°F | 162 mm | Wet |
| July | 25°C / 76°F | 153 mm | Wet |
| August | 26°C / 79°F | 138 mm | Best |
| September | 23°C / 74°F | 195 mm | Wet |
| October | 19°C / 65°F | 225 mm | Wet |
| November | 14°C / 57°F | 101 mm | Cool |
| December | 8°C / 47°F | 72 mm | Cool |
How we pick the best months
- Best: an average temperature of 15–28°C and low rainfall for Tokyo: under 150 mm, and no more than 161 mm, a quarter above Tokyo's median month (never set below 60 mm).
- If no month qualifies, we show the three driest months that average 10–30°C instead.
- Wet: 150 mm of rain or more. Rainy: more than 161 mm. Hot: 29°C or more on average. Cool: under 15°C. Cold: under 5°C.
Averages cover day and night, so afternoons are warmer than the figure shown. Weather is only one reason to pick a month: school holidays, festivals and prices matter too.
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Where these numbers come from
Monthly averages for January 2001 – December 2020 from the NASA POWER project, for the area around Narita (NRT) at 35.77, 140.39. The model covers a grid about 50 km across, so a coastal or hilly spot can run a degree or two different. Retrieved 12 September 2026.
The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center (LaRC) Prediction of Worldwide Energy Resource (POWER) Project funded through the NASA Earth Science/Applied Science Program.