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Hiroshima weather in August 2026
Expect daytime maximum temperatures of 88°F in Hiroshima, 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 14 days with some rainfall and typically 4.9 inches of rainfall in the month.
- 88°F max day temperature
88 - 7 hours of sunshine per day
- 14 days with some rainfall
14 - 73°F min night temperature
73 - 13 hours of daylight per day
13 - Very High heat & humidity
VH - 4.9 inches of monthly rainfall
4.9 - 10 (Very High) UV index
10 - 79°F sea temperature
79
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Recommended for Japan
The August weather guide for Japan (Hiroshima) 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) | Imperial (°F)
More about Japan
How hot is it in Hiroshima in August?
Daytime temperatures usually reach 88°F in Hiroshima in August with very high heat and humidity, falling to 73°F at night.
How sunny is it in Hiroshima in August?
There are normally 7 hours of bright sunshine each day in Hiroshima in August - that's 51% of daylight hours.
How warm is the sea around Hiroshima in August?
The average sea temperature around Hiroshima in August is 79°F.
Does it rain in Hiroshima in August?
There are usually 14 days with some rain in Hiroshima in August and the average monthly rainfall is 4.9 inches.
What is the chance of a typhoon in Hiroshima in August?
On average 1.8 days in August in Hiroshima are likely to be affected by the passage of one or more tropical storms.
Hiroshima August sunrise & sunset times
Browse the sunrise and sunset times for Hiroshima in August 2026. Select a month to view Hiroshima sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Saturday, 1st August 2026 | 05:20 | 19:12 |
| Sunday, 16th August 2026 | 05:32 | 18:57 |
| Monday, 31st August 2026 | 05:42 | 18:38 |
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