Climate and monthly weather forecast
Hamilton, Canada

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The Central Business District of Hamilton City in Canada
The Central Business District of Hamilton City in Canada

The climate of Hamilton

Hamilton, Canada falls under the Dfb code of the Köppen climate classification. This encapsulates a humid continental climate, characterized by a warm summer with no dry season. Located in the northern hemisphere, Hamilton experiences quite distinct variations across the year in terms of weather parameters.

The city observes a significant temperature range throughout the year. While January confronts the coldest weather with average high and low temperatures of -2.3°C (27.9°F) and -7.3°C (18.9°F) respectively, July stays the warmest month with average highs and lows of 25.4°C (77.7°F) and 17.3°C (63.1°F) respectively. Over the year, the temperatures fluctuate from a low of -7.3°C (18.9°F) to a high of 25.4°C (77.7°F).

In addition, Hamilton's annual precipitation pattern shows a diversity, with rainfall peaking at 74mm (2.91") in July. There is no month completely devoid of rainfall, the least coming in September measured at 44mm (1.73"). The city observes the highest humidity in February at 85% and the lowest in April at 75%.

When it comes to snowfall, Hamilton features a cold season. The maximum snowfall, 137mm (5.39"), comes about in February while no snowfall is reported from June to November. January and February bear witness to the highest number of snowfall days, 14.8 and 14.3 respectively.

The best time to visit Hamilton

Tourists planning a visit to Hamilton might find the period between June and September most favorable. During this timeframe, the city's weather turns warm with average high temperatures climbing to between 21.4°C (70.5°F) and 25.4°C (77.7°F). The rain showers stay sporadic, yet abundant enough to maintain a lush environment. The sea temperature, a significant factor for water-related activities, rises from 16.3°C (61.3°F) in June to its peak value of 23.4°C (74.1°F) in August. Moreover, the duration of daylight reaches its longest extent, offering ample time for sightseeing.

The worst time to visit Hamilton

People sensitive to cold may find December to February quite challenging in Hamilton. During these months, the high temperatures dip below freezing,averaging from -2.3°C (27.9°F) to 1.4°C (34.5°F). Furthermore, high chances of snowfall, reaching up to 137mm (5.39") in February accompanied by 14.8 snowfall days in January, could disrupt travel plans.

Spring weather in Hamilton

Spring in Hamilton, Canada is identifiable by warming temperatures and increased rainfall. From March to May, the average high temperatures steadily ascend from 3.8°C (38.8°F) to 17.2°C (63°F) while the minimum temperatures rise from -2.6°C (27.3°F) to 8.8°C (47.8°F). Consequently, the snow begins to recede, and in May, the snowfall days report almost' no' value. This timeframe also records an increasing trend in rainfall with March receiving 56mm (2.2") and May receiving 69mm (2.72").

Summer weather in Hamilton

During summer, Hamilton gets bathed in warm weather with temperatures peaking at 25.4°C (77.7°F) in July. As summer marches on,from June to August, the average high temperatures hover between 21.4°C (70.5°F) and 25.4°C (77.7°F) while the lows range from 13.6°C (56.5°F) to 17.3°C (63.1°F). July sees the highest rainfall during the year with 74mm (2.91") spread across 19.2 days. Meanwhile, the sea temperature reaches up to 23.4°C (74.1°F), making coastal activities highly inviting.

Autumn weather in Hamilton

Autumn in Hamilton sees dropping temperatures and decreasing rainfall. Through September till November, the average highs fall from 21.4°C (70.5°F) to 7.1°C (44.8°F) and the average lows drop from 13.7°C (56.7°F) to 1.8°C (35.2°F). Rainfall also sees a dip with 44mm (1.73") in September and 48mm (1.89") in November. However, the timeframe offers a steady amount of sunshine, averaging above 4.7 hours per day.

Winter weather in Hamilton

Winter in Hamilton is characterised by cold temperatures and considerable snowfall. From December to February, the city observes an average high temperature of -2.3°C (27.9°F) to 1.4°C (34.5°F) and an average low of -7.3°C (18.9°F) to -2.8°C (27°F). The maximum snowfall is recorded in February, which goes up to 137mm (5.39") spread over 14.3 days. The sea temperature drops to 4.8°C (40.6°F) in December, making water-related activities a tough proposition. Despite this, December retains a fair amount of sunshine, approximately 3.5 hours a day, before it falls to 2.5 hours in January.

Weather in January

January greets Hamilton, Canada, with a firm grip of winter, paving the way for snow-clad landscapes. A stark contrast exists amid the high temperature of -2.3°C (27.9°F) and the low of -7.3°C (18.9°F), showcasing the seasonal chill. Weather in January »

Weather in February

February continues the journey in the heart of winter, with slightly higher temperatures than January. Still, the season does not relent, presenting Hamilton with a snowfall record of 137mm (5.39"), the peak for the year. Despite the lingering chill, the city awakens from its winter slumber, preparing for the oncoming spring. Weather in February »

Weather in March

March marks a transition from the severe winter to a mildly cold weather, bringing welcome respite for Hamilton's residents. The highest recorded temperature is 3.8°C (38.8°F), while snowfall decreases to 52mm (2.05"). The city begins to thaw, providing a glimpse of the impending spring. Weather in March »

Weather in April

Hamilton in April begins to experience the warm embrace of spring, dusting off the drapes of winter. The usual chill sees a significant reduction with temperatures soaring up to 10°C (50°F). Blooming flora casting their spell on the city, complemented by the clear blue skies. Weather in April »

Weather in May

When May arrives, Hamilton shakes off the remains of the chill, basking in the sunny ambience of spring. Temperature reaches its zenith at 17.2°C (63°F), making it conducive for outdoor activities. The elongated daylight hours invite residents to embrace the outdoor festivities. Weather in May »

Weather in June

June showcases the onset of summer in Hamilton, accompanied by an increasing length of daylight. Temperatures often peak at 21.8°C (71.2°F), marking the city's transition to a warm climate. Beach visits become a routine with water temperatures touching 16.3°C (61.3°F). Weather in June »

Weather in July

July sees Hamilton in the deep end of summer, with the mercury rising to an apex of 25.4°C (77.7°F). Clear skies and bright sunshine ramp up outdoor life, making it a popular month for gatherings and festivals. The highest sea temperature, noted at 22.8°C (73°F), beckons water sport enthusiasts. Weather in July »

Weather in August

August experiences sustained summer, albeit with a slight drop in temperatures compared to July. Hamilton’s summer extravaganza continues with temperatures reaching highs of 24.7°C (76.5°F). Festivals and public events dot the city’s calendar, attracting locals and tourists alike. Weather in August »

Weather in September

September brings a whiff of autumn as Hamilton's weather begins its transition from summer's end. The highest temperature recorded recedes to 21.4°C (70.5°F), offering relief from summer heat. The fall foliage starts to make its appearance, providing a stark contrast to the receding greenery. Weather in September »

Weather in October

October presents Hamilton in its autumn glory, with temperatures falling to an average high of 14.1°C (57.4°F). The city wears a vibrant mantle, displaying hues of amber, ochre and red. Leaf peeping becomes a favourite pastime as trees transform into artists' palettes. Weather in October »

Weather in November

In November, Hamilton edges towards winter as temperatures tumble, and the city's landscapes transform. Temperatures usually do not go beyond 7.1°C (44.8°F), signalling the cold season, as a blanket of snow starts to cover the city. Weather in November »

Weather in December

December sees Hamilton in full winter mode with temperatures often plunging to a mere 1.4°C (34.5°F). Snowfall totals 74mm (2.91"), rendering the city a white winter wonderland. The festive spirit prevails, overcoming the sub-zero conditions of the city. Weather in December »
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Frequently asked questions

What is the coldest time of year in Hamilton?

January, on average, is the coldest month in Hamilton, Canada, registering a high temperature of -2.3°C (27.9°F) and a low of -7.3°C (18.9°F).

How many days does it rain in Hamilton?

Throughout the year, in Hamilton, Canada, there are 175.2 rainfall days, and 711mm (27.99") of precipitation is accumulated.

When does it snow in Hamilton?

Months with snowfall in Hamilton are January through May, November and December.

How many days does it snow in Hamilton?

In Hamilton, during the entire year, snow falls for 58.6 days and aggregates up to 463mm (18.23") of snow.

What is the month with the least sunshine in Hamilton?

The month with the least sunshine in Hamilton, Canada, is January, with an average of 3.2h of sunshine.

What is the most humid month in Hamilton?

February is the most humid month in Hamilton, Canada, with an average relative humidity of 85%.

What is the snowiest month in Hamilton?

February is the month with the most snowfall in Hamilton. Snow falls for 14.3 days and accumulates 137mm (5.39") of snow.

When is the sea coldest in Hamilton?

February is the month with the coldest seawater in Hamilton, Canada, with an average sea temperature of 1.2°C (34.2°F).

When is Daylight Saving Time (DST) in Hamilton?

On Sunday, 10. March 2024, at 2:00 am, Daylight Saving Time starts in Hamilton, Canada, and the time zone changes from EST to EDT. Daylight Saving Time ends on Sunday, 03. November 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Hamilton?

April is the least humid month, with an average relative humidity of 75%.

When it does not snow in Hamilton?

In Hamilton, Canada, snow does not fall in June through October.

When are the longest days in Hamilton?

June has the longest days of the year in Hamilton, Canada, with an average of 15h and 18min of daylight.

What are the warmest months in Hamilton?

In Hamilton, July is the warmest month, with temperatures averaging a high of 25.4°C (77.7°F) and a low of 17.3°C (63.1°F).

What is the wettest month in Hamilton?

The month with the most rainfall in Hamilton is July, when the rain falls for 19.2 days and typically aggregates up to 74mm (2.91") of precipitation.

What month has the most sunshine in Hamilton?

The month with the most sunshine is July, with an average of 10.6h of sunshine.

What is the month with the highest UV index in Hamilton?

With an average maximum UV index of 6, July is the month with the highest UV index in Hamilton, Canada.

When is the sea warmest in Hamilton?

With an average sea temperature of 23.4°C (74.1°F), August is the month with the warmest seawater in Hamilton, Canada.

What is the driest month in Hamilton?

The month with the least rainfall is September, when the rain falls for 14.1 days and typically collects 44mm (1.73") of precipitation.

What is the month with the shortest days in Hamilton?

The month with the shortest days is December, with an average of 9h and 0min of daylight.

What is the month with the lowest UV index in Hamilton?

The month with the lowest UV index in Hamilton is December, with an average maximum UV index of 1.

Average temperature
Hamilton, Canada

Average temperature - Hamilton, Canada

The warmest month (with the highest average high temperature) is July (25.4°C).
The month with the lowest average high temperature is January (-2.3°C).

The month with the highest average low temperature is July (17.3°C).
The coldest month (with the lowest average low temperature) is January (-7.3°C).

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Average pressure
Hamilton, Canada

Average pressure - Hamilton, Canada

The months with the highest atmospheric pressure are March and November (1018.5mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).

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Average wind speed
Hamilton, Canada

Average wind speed - Hamilton, Canada

The windiest month (with the highest average wind speed) is January (19km/h).
The calmest month (with the lowest average wind speed) is July (11.3km/h).

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Average humidity
Hamilton, Canada

Average humidity - Hamilton, Canada

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (75%).

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Average rainfall
Hamilton, Canada

Average rainfall - Hamilton, Canada

The wettest month (with the highest rainfall) is July (74mm).
The driest month (with the least rainfall) is September (44mm).

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Average rainfall days
Hamilton, Canada

Average rainfall days - Hamilton, Canada

The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is February (9.3 days).

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Average snowfall
Hamilton, Canada

Average snowfall - Hamilton, Canada

The month with the highest snowfall is February (137mm).
The months with the least snowfall are June, July, August, September and October (0mm).

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Average snowfall days
Hamilton, Canada

Average snowfall days - Hamilton, Canada

The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature
Hamilton, Canada

Average sea temperature - Hamilton, Canada

The best month for swimming (with the highest average sea temperature) is August (23.4°C).
The coldest month (with the lowest average sea temperature) is February (1.2°C).

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Average daylight / Average sunshine
Hamilton, Canada

Average daylight / Average sunshine - Hamilton, Canada

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days
Hamilton, Canada

Average sunshine days - Hamilton, Canada

The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (9 days).

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Hamilton, Canada

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