The highest day temperature in August 2026 was 92°F. The lowest night temperature was 44°F. The average values for day and night temperatures during August were 87.6°F и 81.2°F respectivly.

The average sea surface temperature in August 2026 for Civitavecchia was 86.9°F. The maximum and minimum values were 85.4°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 Civitavecchia is 0.5 in. It makes august one of the least rainy months of the year.

The average wind speed in August is 8.5 mph. It makes August one of the most windless months of the year for Civitavecchia.

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 Civitavecchia in August is 12.2 hours.