Hiroshima weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Good
Best time to visit: April – July, September – November
What is the weather like in Hiroshima in July?
In July, Hiroshima is hot: daytime highs average 28 °C, and even at night it stays warm at around 24 °C. The sea averages 24.2 °C – pleasant for swimming. Expect around 6 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 210 mm in total. The air is often humid and muggy. All in all, July is a good month for a holiday in Hiroshima.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 14 h 15 min05:08 – 19:24
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 68 %on averageAll months
- Hot days
- 3 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+9Asia/Tokyo
How the score comes together
- Temperatureweight 50 %92 %
- Sunshineweight 20 %43 %
- Few rainy daysweight 30 %36 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in July
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Hiroshima in July: quick answers
Is Hiroshima hot in July?
Yes. In July, Hiroshima is hot: daytime highs average 28 °C and nights stay around 24 °C. On about 3 days the thermometer climbs to 30 °C or more.
Can you swim in Hiroshima in July?
Yes. In July the sea averages 24.2 °C – pleasant for swimming.
Does it rain much in Hiroshima in July?
Rain is frequent, with about 13 rainy days and 210 mm in total.
Hiroshima month by month
The whole year in HiroshimaAll destinations: JapanWhere to go in JulySea temperature in July
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences