Which is the hottest month in Hamilton?

The hottest time of year in Hamilton is normally July. Expect maximum daytime temperatures to reach 27°C with moderate heat and humidity.

Which month has the most rain in Hamilton?

In terms of rainfall, August is usually the wettest month in Hamilton with 91mm on average. There are normally 9 days in August with some rain.

When is it sunniest in Hamilton?

The sunniest time of year in Hamilton is normally July with bright sunshine on average for 61% of daylight hours; that's 9 hours of sunshine per day.

When is the sea warmest in Hamilton?

The sea is usually at its warmest in Hamilton in August when the water temperature reaches 21°C.

Best time to visit Hamilton

Q: When is the best time to visit Hamilton?

The best time to visit Hamilton is June and July based on the following average weather conditions. Daily hours of sunshine = 10 hours or more.

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When is the best time to visit Hamilton?

The best time to visit Hamilton is June and July based on the following average weather conditions.

Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

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Jul
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Aug
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Sep
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Oct
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Hours of Sunshine (daily)

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May
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Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Ontario (Hamilton) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)