August weather forecast
Canada

August is the last full month of summer in Canada and it continues to offer a variety of weather conditions, depending on the region. Warm temperatures, coupled with an occasional rainfall, mark the impending end of the summer season.

In the northern territories, including Nunavut and Yukon, temperatures typically range from 10°C (50°F) to 20°C (68°F), which is slightly cooler compared to July. The daylight hours also begin to diminish, though still plentiful for outdoor activities.

In the west coast cities, such as Vancouver and Victoria, the mild weather continues, with temperatures usually between 15°C (59°F) and 25°C (77°F). The rainfall tends to remain low, making it a favorable period for exploring outdoor activities.

In the Prairie provinces, encompassing cities like Calgary and Winnipeg, the temperatures during the day can vary between 15°C (59°F) and 30°C (86°F). While August remains generally dry, occasional thunderstorms can occur, particularly in the southern part of this region.

In Atlantic Canada, including Halifax and St. John's, temperatures remain pleasant, typically ranging from 15°C (59°F) to 25°C (77°F). Foggy conditions can persist due to the influence of the cold Labrador Current, but sunny days are still prevalent.

Snowfall in August is quite uncommon, with only the highest points of the Rocky Mountains occasionally experiencing a dusting of snow. As the month progresses, early signs of autumn, such as leaves starting to change colors, may become visible in the northern and higher altitude regions of the country.

Compared to July, August is a bit cooler, particularly towards the end of the month. Although the daytime temperatures remain high, the evenings tend to become cooler. Occasional precipitation serves as a reminder of the approaching fall season. Nevertheless, August is a time when Canadians continue to embrace the outdoors, whether it be through camping, hiking, or participating in various festivals across the country.

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• Toronto - August »
  The month with the warmest seawater in Toronto is August, with an average sea temperature of 22.3°C (72.1°F). August is the month with the warmest seawater in Toronto with an average sea temperature of 22.3°C (72.1°F).
• Montreal - August »
  In Montreal, in August, it is raining for 16.8 days, with typically 78mm (3.07") of accumulated precipitation. The transition into August in Montreal is marked with an average high-temperature of a still warm 24.8°C (76.6°F), showing an insignificant shift from July's 25.8°C (78.4°F).
• Vancouver - August »
  The months with the warmest seawater in Vancouver are August and September, with an average sea temperature of 11.3°C (52.3°F). In August, the average sea temperature in Vancouver is 11.3°C (52.3°F).
• Ottawa - August »
  On the first day of August sunrise is at 5:47 am and sunset at 8:30 pm. In Ottawa, during August, the rain falls for 15.9 days and regularly aggregates up to 68mm (2.68") of precipitation.
• Calgary - August »
  In Calgary in August, during 10.3 rainfall days, 23mm (0.91") of precipitation is typically accumulated. August, recognised by an average high temperature of 22.9°C (73.2°F) and a low of 9.8°C (49.6°F), is Calgary's warmest month.
• Edmonton - August »
  In Edmonton during August, the rain falls for 13.6 days and regularly aggregates up to 37mm (1.46") of precipitation. August's weather in Edmonton displays an average high-temperature of a still agreeable 22.4°C (72.3°F), slightly varied from July's 22.6°C (72.7°F).
• Winnipeg - August »
  August is the warmest month in Winnipeg, exhibiting average temperatures of 25.6°C (78.1°F) at the peak and 14.3°C (57.7°F) at the base. August is Winnipeg's warmest month, registering average high temperatures of 25.6°C (78.1°F) and lows of 14.3°C (57.7°F).
• Quebec city - August »
  August is the month with the warmest seawater in Quebec city, with an average sea temperature of 14.1°C (57.4°F). On the first day of August in Quebec city sunrise is at 5:25 am and sunset at 8:16 pm.
• Hamilton - August »
  With an average sea temperature of 23.4°C (74.1°F), August is the month with the warmest seawater in Hamilton, Canada. The month with the warmest seawater in Hamilton, Canada, is August, with an average sea temperature of 23.4°C (74.1°F).
• Kitchener - August »
  As August takes hold in Kitchener, the average high-temperature is a still warm 24°C (75.2°F), nearly mirroring that of the previous month. In Kitchener, in August, during 17.2 rainfall days, 58mm (2.28") of precipitation is typically accumulated.
• London - August »
  In London in August, it is raining for 13 days, with typically 29mm (1.14") of accumulated precipitation. The months with the highest UV index in London are May through August, with an average maximum UV index of 5.
• Victoria - August »
  August and September, with an average sea temperature of 11.5°C (52.7°F), are months with the warmest seawater in Victoria. Temperatures in Victoria reach their maximum during July and August, recording an average high-temperature of 20.2°C (68.4°F).