The highest day temperature in March 2025 was 67°F. The lowest night temperature was 21°F. The average values for day and night temperatures during March were 45.5°F и 35.3°F respectivly.

The average sea surface temperature in March 2025 for South Haven was 33.2°F. The maximum and minimum values were 29.8°F and 37.0°F respectively.

Most of the days in March are gloomy but you can also expect sunny days.

Precipitation total in March for South Haven is 1.0 in.

The average wind speed in March is 12.5 mph. It makes March one of the most windy months of the year for South Haven.

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 South Haven in March is 4.9 hours.