The highest day temperature in July 2025 was 96°F. The lowest night temperature was 72°F. The average values for day and night temperatures during July were 87.4°F и 79.6°F respectivly.

The average sea surface temperature in July 2025 for Naples was 84.2°F. The maximum and minimum values were 81.4°F and 86.6°F respectively.

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

Precipitation total in July for Naples is 0.6 in. It makes july one of the least rainy months of the year.

The average wind speed in July is 6.5 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 Naples in July is 13.2 hours.