The highest day temperature in August 2025 was 86°F. The lowest night temperature was 78°F. The average values for day and night temperatures during August were 81.0°F и 80.9°F respectivly.

The average sea surface temperature in August 2025 for Skiathos was 83.2°F. The maximum and minimum values were 81.2°F and 84.4°F respectively.

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

Precipitation total in August for Skiathos is 0.5 in. It makes august the least rainy month of the year.

The average wind speed in August is 9.6 mph.

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 Skiathos in August is 12.3 hours.