Itsukushima weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Excellent
Best time to visit: July – September
What is the weather like in Itsukushima in August?
In August, Itsukushima is hot: daytime highs average 29 °C, and even at night it stays warm at around 25 °C. The sea averages 26.5 °C – lovely and warm for swimming. The sun shines for around 7 hours a day. Rain is frequent, with about 11 rainy days and 139 mm in total. On about 7 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is an excellent month for a holiday in Itsukushima.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 76 | 82 | 78 |
| Day | 27° | 29° | 26° |
| Night | 24° | 25° | 23° |
| Sea | 24° | 27° | 26° |
| Sun | 6 h | 7 h | 6 h |
| Rain days | 13 | 11 | 11 |
More details for August
- Daylight
- 13 h 29 min05:31 – 19:00
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 59 %on averageAll months
- Hot days
- 7 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 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %62 %
- Few rainy daysweight 20 %49 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in August
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Itsukushima in August: quick answers
Is Itsukushima hot in August?
Yes. In August, Itsukushima is hot: daytime highs average 29 °C and nights stay around 25 °C. On about 7 days the thermometer climbs to 30 °C or more.
Can you swim in Itsukushima in August?
Yes. In August the sea averages 26.5 °C – lovely and warm for swimming.
Does it rain much in Itsukushima in August?
Rain is frequent, with about 11 rainy days and 139 mm in total.
Itsukushima month by month
The whole year in ItsukushimaAll destinations: JapanWhere to go in AugustSea temperature in August
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