The highest day temperature in August 2023 was 99°F. The lowest night temperature was 74°F. The average values for day and night temperatures during August were 91.2°F и 78.1°F respectivly.

The average sea surface temperature in August 2023 for Hiroshima was 86.2°F. The maximum and minimum values were 83.4°F and 88.0°F respectively.

Most of the days in August are sunny but you can also expect cloudy and gloomy days.

Precipitation total in August for Hiroshima is 8.6 in. It makes august one of the most rainy months of the year.

The average wind speed in August is 4.4 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Hiroshima in August is 8.1 hours.