Today's Weather Forecast - Tokyo

Today's weather in Tokyo. high 20°C (68°F), low 19°C (66°F). Partly Cloudy.

Today’s Hourly Weather Outlook

Morning6 AM – Noon19°
Wind speed
4 km/h
Rain probability
100%
AfternoonNoon – 6 PM20°
Wind speed
5 km/h
Rain probability
90%
Evening6 PM – Midn20°
Wind speed
4 km/h
Rain probability
88%
NightMidn – 6 AM19°
Wind speed
3 km/h
Rain probability
98%

24-Hour Rain & Temperature Forecast

Sunrise & Sunset

Sunrise
Dawn 4:50 AM
Total Daylight
Day completeSolar noon 11:37 AM
Sunset
Dusk 6:24 PM
RemainingDaylight ended
Solar elevation-43°
vs yesterday-4 min

Air Quality Index & Health Advice

Air Quality Index

Air quality level
Good
Dominant pollutant
Dominant: PM2.5
Monitoring station
Chuo, Nakano, Tokyo, Japan (山手通り東中野中野区)
PM2.5
21μg/m³
PM10
7μg/m³
O₃
18.4ppb
NO₂
10.2ppb
SO₂
1.5ppb
CO
3.4ppm
0Good → Hazardous300+

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Tokyo is forecast to reach a high of 20°C today, with an overnight low around 19°C. That's 8° below the long-term average high of 28°C for this time of year. It continues a recent pattern — 7 of the last 19 days with published data have run cooler than normal. Expect a high chance of rain (100% probability) and light winds averaging 5 km/h. Air quality is currently Moderate (AQI 72), driven mainly by PM2.5 at 22 μg/m³.

Today vs Normal

20°C-8° below normal

The long-term average high for today is 28°C.

7 of the last 19 days with published data ran above normal.

It continues that pattern - today's forecast is also running below normal.

2026-08-19: 31°C31°2026-08-20: 31°C31°2026-08-21: 30°C30°2026-08-22: 31°C31°2026-08-23: 30°C30°2026-08-24: 32°C32°2026-08-25: 32°C32°2026-08-26: 34°C34°2026-08-27: 30°C30°2026-08-28: 31°C31°2026-08-29: 25°C25°2026-08-30: 25°C25°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.