The highest day temperature in April 2026 was 83°F. The lowest night temperature was 57°F. The average values for day and night temperatures during April were 77.4°F и 70.8°F respectivly.

The average sea surface temperature in April 2026 for Bay Saint Louis was 76.4°F. The maximum and minimum values were 71.8°F and 80.0°F respectively.

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

Precipitation total in April for Bay Saint Louis is 1.3 in.

The average wind speed in April is 9.2 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 Bay Saint Louis in April is 8.0 hours.