The highest day temperature in April 2026 was 91°F. The lowest night temperature was 67°F. The average values for day and night temperatures during April were 87.0°F и 71.1°F respectivly.

The average sea surface temperature in April 2026 for Sanibel Island was 78.8°F. The maximum and minimum values were 76.2°F and 82.0°F respectively.

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

Precipitation total in April for Sanibel Island is 0.6 in.

The average wind speed in April is 10.2 mph. It makes April one of the most windy 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 April is 9.3 hours.