The highest day temperature in July 2025 was 98°F. The lowest night temperature was 60°F. The average values for day and night temperatures during July were 85.0°F и 68.3°F respectivly.

The average sea surface temperature in July 2025 for Isola was 82.0°F. The maximum and minimum values were 79.6°F and 85.2°F respectively.

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

Precipitation total in July for Isola is 2.7 in.

The average wind speed in July is 5.1 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 Isola in July is 11.7 hours.