Tokyo · Japan · 1995–2024 averages
Tokyo weather, month by month. May is the pick.
Thirty years of averages for Tokyo, Japan — how hot it really feels, when the rain arrives, and what the air is like. May comes out on top; July is the one to skip.
The year at a glance
Tap a month for its full breakdown.
May
bestscore 60.9/100Mild, sweaty and rainy, with moderate air.
- Feels like
- 22°
- mild
- Real temp
- 22°
- mild
- Humidity
- 76%
- sweaty
- Rain
- 140mm
- rainy
- Cloud cover
- 69%
- mixed
- Air quality
- 78
- moderate
- Daylight
- 14h
- long days
Month by month, metric by metric
Each strip covers the same twelve months, so you can see where the rain lands and how the air shifts with it.
Feels like
peaks at 34° in August
Real temp
8–30° in the shade across the year
Humidity
68% at its driest, 82% at its most oppressive
Rain
193mm in October, 62mm in January
Cloud cover
40% at its clearest, 80% at its greyest
Air quality
worst in July, cleanest in August
Daylight
9.8h to 14.5h of daylight across the year
Tokyo's air changes sharply through the year
The air is at its worst in July at 99 AQI (moderate), and at its cleanest in August at 65 (moderate). It tracks the seasons closely.
Every month in full
All twelve months, all seven measures.
| Month | Feels like | Real temp | Humidity | Rain | Cloud cover | Air quality | Daylight |
|---|---|---|---|---|---|---|---|
| January | 4° freezing | 8° cold | 68% sticky | 62mm dryish | 40% bright | 83 moderate | 10h shortish |
| February | 5° cold | 9° cold | 68% sticky | 63mm dryish | 50% bright | 75 moderate | 10.9h shortish |
| March | 10° cold | 13° cold | 70% sticky | 117mm some rain | 57% mixed | 80 moderate | 12h even |
| April | 16° cool | 18° cool | 73% sticky | 123mm some rain | 62% mixed | 83 moderate | 13.1h even |
| May | 22° mild | 22° mild | 76% sweaty | 140mm rainy | 69% mixed | 78 moderate | 14h long days |
| June | 27° mild | 25° mild | 81% sweaty | 167mm rainy | 80% grey | 87 moderate | 14.5h long days |
| July | 32° warm | 29° warm | 82% sweaty | 158mm rainy | 74% grey | 99 moderate | 14.3h long days |
| August | 34° hot | 30° warm | 80% sweaty | 115mm some rain | 65% mixed | 65 moderate | 13.5h even |
| September | 29° warm | 26° mild | 81% sweaty | 182mm rainy | 67% mixed | 67 moderate | 12.4h even |
| October | 21° mild | 21° mild | 79% sweaty | 193mm rainy | 61% mixed | 77 moderate | 11.3h shortish |
| November | 14° cool | 16° cool | 76% sweaty | 93mm some rain | 53% bright | 87 moderate | 10.3h shortish |
| December | 7° cold | 11° cold | 71% sticky | 62mm dryish | 42% bright | 88 moderate | 9.8h short |
Tokyo weather questions
- What is the best time to visit Tokyo?
- May scores best across temperature, rain, humidity and air quality — 22° feels-like, 140mm of rain and 76% humidity. July is the month to avoid: 158mm of rain and 99 AQI.
- How hot does Tokyo get?
- August is the peak, at 34° feels-like (30° in the shade) — hot. Even in May it reaches 22°.
- When is the rainy season in Tokyo?
- October is the wettest month at 193mm, and January the driest at just 62mm.
- Is air quality a problem in Tokyo?
- July is the worst month at 99 AQI (moderate), and August the best at 65 (moderate).
Weather normals from Open-Meteo (ERA5 reanalysis, 1995–2024) and CAMS air quality (2015–2024), licensed CC-BY-4.0. Contains modified Copernicus Climate Change Service information. These are long-run averages, not forecasts — any given year will differ.
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