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Osaka weather in August 2026
Expect daytime maximum temperatures of 33°C in Osaka, Japan in August and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 16 days with some rainfall and typically 106 mm of rainfall in the month.
- 33°C max day temperature
33 - 7 hours of sunshine per day
- 16 days with some rainfall
16 - 25°C min night temperature
25 - 13 hours of daylight per day
13 - Very High heat & humidity
VH - 106 mm of monthly rainfall
106 - 10 (Very High) UV index
10 - 27°C sea temperature
27
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Recommended for Japan
The August weather guide for Japan (Osaka) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about Japan
How hot is it in Osaka in August?
Daytime temperatures usually reach 33°C in Osaka in August with very high heat and humidity, falling to 25°C at night.
How sunny is it in Osaka in August?
There are normally 7 hours of bright sunshine each day in Osaka in August - that's 48% of daylight hours.
How warm is the sea around Osaka in August?
The average sea temperature around Osaka in August is 27°C.
Does it rain in Osaka in August?
There are usually 16 days with some rain in Osaka in August and the average monthly rainfall is 106mm.
What is the chance of a typhoon in Osaka in August?
On average 1.7 days in August in Osaka are likely to be affected by the passage of one or more tropical storms.
Osaka August sunrise & sunset times
Browse the sunrise and sunset times for Osaka in August 2026. Select a month to view Osaka sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Saturday, 1st August 2026 | 05:08 | 19:01 |
| Sunday, 16th August 2026 | 05:19 | 18:45 |
| Monday, 31st August 2026 | 05:30 | 18:26 |
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