The highest day temperature in June 2025 was 98°F. The lowest night temperature was 73°F. The average values for day and night temperatures during June were 89.8°F и 81.4°F respectivly.

The average sea surface temperature in June 2025 for Sanibel Island was 90.2°F. The maximum and minimum values were 88.2°F and 91.6°F respectively.

Most of the days in June are cloudy but you can also expect sunny or gloomy days.

Precipitation total in June for Sanibel Island is 2.8 in. It makes june the most rainy month of the year.

The average wind speed in June is 8.0 mph. It makes June one of the most windless months of the year for Sanibel Island.

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 Sanibel Island in June is 7.2 hours.