Will it rain in
Tokyo today?
Live hourly rain forecast and run verdict for Tokyo, Kanto, Japan.
Running in Tokyo means navigating brutal summer humidity, typhoon season, and the pleasant but short spring and autumn windows. Whether it's a sweltering run along the Imperial Palace, a typhoon warning keeping you indoors, or a perfect cherry-blossom morning in Yoyogi Park, knowing whether to head out before you lace up matters. RainOrRun checks live conditions in Tokyo right now and gives you an instant verdict — plus the best hourly window if the weather's on the fence. We'll also recommend the right gear for whatever Tokyo's seasonal extremes are throwing at you today.
What to wear
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How often does it rain in Tokyo?
Tokyo records around 1617mm of rain a year, spread across about 136 days — roughly 37% of all days, or 11 days in an average month. In practice that makes rain a regular feature of running in Tokyo rather than an exception — close to one day in two. A decent waterproof and a peaked cap earn their place in the kit bag year-round.
The wettest month is September, averaging 215mm across about 15 rainy days. The driest is January, with 57mm over roughly 5 days. Average lows in January drop to -0.1°C, cold enough that gloves, a headband and a thermal base layer make a real difference on early runs. At the other end, August averages 31.3°C highs — hot enough that early morning and evening are the sensible windows, and hydration matters more than waterproofing.
Those are ten-year averages, not a forecast. What actually matters on the day is the next twelve hours — which is what the live verdict and hourly strip at the top of this page are for.
| Month | Rainfall | Rainy days | Avg high | Avg low |
|---|---|---|---|---|
| January | 57mm | 5 | 9°C | -0.1°C |
| February | 57mm | 7 | 10.3°C | 0.9°C |
| March | 139mm | 12 | 14.3°C | 4.7°C |
| April | 131mm | 12 | 18.7°C | 9.5°C |
| May | 136mm | 11 | 23.3°C | 14.5°C |
| June | 192mm | 15 | 25.9°C | 18.5°C |
| July | 194mm | 16 | 29.9°C | 23°C |
| August | 145mm | 14 | 31.3°C | 24.2°C |
| September | 215mm | 15 | 27.3°C | 20.7°C |
| October | 193mm | 12 | 21.5°C | 14.3°C |
| November | 97mm | 10 | 16.7°C | 8.4°C |
| December | 61mm | 7 | 11.4°C | 2.5°C |
Historical data: Open-Meteo archive, 2015–2024. A “rainy day” means at least 1mm of precipitation.
Running in Tokyo: common questions
Will it rain in Tokyo today?
The forecast card at the top of this page shows Tokyo's rain probability for the current hour, plus an hour-by-hour breakdown for the rest of the day, using live Open-Meteo data. Historically, Tokyo sees rain on about 136 days a year, so on any given day there is roughly a 37% chance of some rain falling.
Is it a good day to run in Tokyo?
RainOrRun scores the live Tokyo forecast on rain probability, rainfall amount, temperature, wind speed and severe weather, then returns a single verdict: Go, Maybe, or Don't Bother. A Maybe means conditions are borderline and it is worth picking your window rather than skipping the run.
What is the best time to run in Tokyo today?
The hourly strip above highlights the best single window of the day for Tokyo — the hour combining the lowest rain probability with the most comfortable temperature. You can also check up to eight days ahead using the date picker if you are planning a long run or a race.
What should I wear running in Tokyo today?
The gear section on this page updates with the live Tokyo forecast: a waterproof jacket and peaked cap when rain probability goes above 40%, a thermal base layer and gloves below 8 degrees Celsius, and a high-vis vest when wind or low light make you harder to see.
What is the wettest month in Tokyo?
September is the wettest month in Tokyo, averaging 215mm of rain across about 15 rainy days. January is the driest, with around 57mm over roughly 5 days. Figures are ten-year averages covering 2015 to 2024.
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