Hamilton Weather & Climate: Best Time to Visit

The weather in Hamilton changes moderately throughout the year, offering enough variation to appreciate each season. Average daytime temperatures reach a comfortable 29°C (84°F) in August. In March, the coolest month of the year, temperatures drop to a pleasant 20°C (68°F).

At night, temperatures range from around 26°C (79°F) in August to 17°C (63°F) in March.

Check out our detailed temperature page for more information.

Temperature ranges by month

Hamilton has a relatively rainy climate with high precipitation levels, averaging 1416 mm (56 in) of rainfall annually. Hamilton experiences moderate seasonal variation in rainfall, with monthly averages ranging from 151 mm (5.9 in) in September, the wettest month, and 91 mm (3.6 in) in April, the driest month. For more details, please visit our Hamilton Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Hamilton can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.4 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 4.8 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Hamilton.

The city experiences its highest humidity in June, reaching 82%. In November, the humidity drops to its lowest level at 72%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year