The highest day temperature in July 2025 was 89°F. The lowest night temperature was 70°F. The average values for day and night temperatures during July were 83.7°F и 76.0°F respectivly.

The average sea surface temperature in July 2025 for Civitavecchia was 81.6°F. The maximum and minimum values were 77.6°F and 86.2°F respectively.

Almost all days in July are sunny. There is very low probability of clouds or gloomy days.

Precipitation total in July for Civitavecchia is 0.4 in. It makes july the least rainy month of the year.

The average wind speed in July is 8.7 mph. It makes July 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 July is 13.5 hours.