Today's Weather Forecast - Osaka

Today's weather in Osaka. high 26°C (79°F), low 21°C (70°F). Partly Cloudy.

Today’s Hourly Weather Outlook

Morning6 AM – Noon22°
Wind speed
5 km/h
Rain probability
63%
AfternoonNoon – 6 PM25°
Wind speed
6 km/h
Rain probability
51%
Evening6 PM – Midn25°
Wind speed
4 km/h
Rain probability
4%
NightMidn – 6 AM22°
Wind speed
5 km/h
Rain probability
98%

24-Hour Rain & Temperature Forecast

Sunrise & Sunset

Sunrise
Dawn 5:07 AM
Total Daylight
Day completeSolar noon 11:54 AM
Sunset
Dusk 6:41 PM
RemainingDaylight ended
Solar elevation-42°
vs yesterday-4 min

Air Quality Index & Health Advice

Air Quality Index

Air quality level
Good
Dominant pollutant
Dominant: O3
Monitoring station
Osaka (大阪)
PM2.5
25μg/m³
PM10
11μg/m³
O₃
30.4ppb
NO₂
17.6ppb
SO₂
5.8ppb
CO
4.5ppm
0Good → Hazardous300+

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Osaka is forecast to reach a high of 26°C today, with an overnight low around 21°C. That's 1° below the long-term average high of 27°C for this time of year. Expect a high chance of rain (98% probability) and light winds averaging 6 km/h. Air quality is currently Moderate (AQI 60), driven mainly by PM2.5 at 14 μg/m³.

Today vs Normal

26°C-1° below normal

The long-term average high for today is 27°C.

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

That's a break from the pattern - today's forecast runs below normal even though the recent stretch mostly ran above.

2026-08-19: 30°C30°2026-08-20: 31°C31°2026-08-21: 31°C31°2026-08-22: 31°C31°2026-08-23: 32°C32°2026-08-24: 33°C33°2026-08-25: 32°C32°2026-08-26: 31°C31°2026-08-27: 30°C30°2026-08-28: 28°C28°2026-08-29: 30°C30°2026-08-30: 31°C31°

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.