Okayama 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 – June, September – November
What is the weather like in Okayama in July?
In July, Okayama is hot: daytime highs average 29 °C, and even at night it stays warm at around 23 °C. The sea averages 24.9 °C – pleasant for swimming. Expect around 6 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 160 mm in total. On about 13 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is a good month for a holiday in Okayama.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 14 h 17 min05:02 – 19:18
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 30 daysdew point 18 °C or moreAll months
- Wind
- 17 km/haverage daily peakAll months
- Cloud cover
- 67 %on averageAll months
- Hot days
- 13 days30 °C or moreAll months
- Time zone
- UTC+9Asia/Tokyo
How the score comes together
- Temperatureweight 50 %70 %
- Sunshineweight 20 %50 %
- Few rainy daysweight 30 %49 %
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
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Okayama in July: quick answers
Is Okayama hot in July?
Yes. In July, Okayama is hot: daytime highs average 29 °C and nights stay around 23 °C. On about 13 days the thermometer climbs to 30 °C or more.
Can you swim in Okayama in July?
Yes. In July the sea averages 24.9 °C – pleasant for swimming.
Does it rain much in Okayama in July?
Rain is frequent, with about 11 rainy days and 160 mm in total.
Okayama month by month
The whole year in OkayamaAll 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