The highest day temperature in July 2025 was 99°F. The lowest night temperature was 77°F. The average values for day and night temperatures during July were 89.8°F и 82.2°F respectivly.

The average sea surface temperature in July 2025 for Poros was 83.0°F. The maximum and minimum values were 80.0°F and 86.8°F respectively.

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

Precipitation total in July for Poros is 0.1 in. It makes july the least rainy month of the year.

The average wind speed in July is 8.2 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 Poros in July is 13.6 hours.