The highest day temperature in May 2025 was 86°F. The lowest night temperature was 37°F. The average values for day and night temperatures during May were 65.3°F и 51.6°F respectivly.

The average sea surface temperature in May 2025 for Windsor was 56.2°F. The maximum and minimum values were 51.4°F and 61.6°F respectively.

You can expect various weather conditions during May. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in May for Windsor is 0.9 in. It makes may one of the most rainy months of the year.

The average wind speed in May is 8.1 mph.

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 Windsor in May is 7.8 hours.