Measurements:
°C
°F
Hamilton
76°F
NE 14 mph
Feels like: 80°F
Precip: 0%
World Resorts Canada Hamilton Weather May Weather in Hamilton

Hamilton Weather: May

Average Day Temperature: 62.3°F
Average Night Temperature: 50.6°F
Sea Water Temperature: 46.9°F
Number of Sunny Days: 10 days
Sunshine Hours: 14.1 - 15.1 hours
Number of Rainy Days: 1 day
Precipitation Totals: 0.7 in

Air Temperature in May, °F

Select Year: 2025 2024 2023

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.

Hamilton Water Sea Temperature in May, °F

Select Year: 2026 2025 2024

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.

Sunny, Cloudy and Gloomy days

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

Precipitation Totals in May, in

Precipitation total in May for Hamilton is 0.7 in.

Wind Speed in May, mph

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

Average Sunny Hours Per Day

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.

Best Time to Visit Hamilton
The most sunny months:
September 15 days
August 14 days
July 13 days
The most warm months:
July 82.3 °F
August 80.7 °F
June 75.6 °F
Warmest sea temperature:
August 73.7 °F
July 71.3 °F
September 69.7 °F
The most cold months:
January 26.4 °F
February 27.6 °F
December 33.8 °F
The most rainy months:
April 2 days
July 2 days
June 2 days
The most windy months:
December 11 mph
November 11 mph
January 10 mph

Hamilton on the Weather Map

24 Hours Weather Forecast
Hamilton
Local time: 08:40
19 may, tuesday
0900 76°F
NE
14 mph
1200 86°F
NE
19 mph
1500 94°F
NE
19 mph
1800 82°F
NE
16 mph
2100 70°F
NE
14 mph
20 may, wednesday
0000 66°F
NE
14 mph
0300 62°F
E
11 mph
0600 54°F
SE
11 mph