The highest day temperature in May 2025 was 84°F. The lowest night temperature was 39°F. The average values for day and night temperatures during May were 61.8°F и 48.2°F respectivly.

The average sea surface temperature in May 2025 for Hamilton was 46.7°F. The maximum and minimum values were 42.0°F and 51.0°F respectively.

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

Precipitation total in May for Hamilton is 0.7 in. It makes may one of the least rainy months of the year.

The average wind speed in May is 7.7 mph. It makes May one of the most windless months of the year for Hamilton.

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 Hamilton in May is 7.9 hours.