Hiroshima weather in April
Temperature, sea and sunshine in April: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in April
Good
Best time to visit: April – July, September – November
What is the weather like in Hiroshima in April?
In April, Hiroshima is mild: daytime highs average 17 °C, and nights cool down to about 11 °C. The sea averages 14.2 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 137 mm in total. All in all, April is a good month for a holiday in Hiroshima.
April compared
How the weather changes from March to May. Tap a month to open it.
More details for April
- Daylight
- 13 h 1 min05:40 – 18:41
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 58 %on averageAll months
- Hot days
- 0 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 %88 %
- Sunshineweight 20 %57 %
- Few rainy daysweight 30 %57 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in April
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Hiroshima in April: quick answers
Is Hiroshima hot in April?
No. In April, Hiroshima is mild: daytime highs average 17 °C and nights drop to about 11 °C.
Can you swim in Hiroshima in April?
Only if you don't mind cold water: in April the sea averages just 14.2 °C. Comfortable swimming is possible from June to November.
Does it rain much in Hiroshima in April?
Rain is frequent, with about 10 rainy days and 137 mm in total.
Hiroshima month by month
The whole year in HiroshimaAll destinations: JapanWhere to go in AprilSea temperature in April
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