August Weather in Winnipeg, Canada

Last updated: June 18, 2025

In August, the average temperature in Winnipeg, Canada is a pleasant 19°C (67°F). Visitors can expect temperatures to range from a cool 4°C (39°F) to a warm 36°C (96°F). During this month, precipitation averages around 60 mm (2.4 in) over 8 days, with an average humidity level of 77%. Be prepared for a mix of refreshing coolness and sunny warmth!

August Temperature in Winnipeg

In August in Winnipeg, the average temperature is 19°C (67°F), with maximums reaching 36°C (96°F) and minimums dipping as low as 4°C (39°F). This diverse range of temperatures makes Winnipeg a great destination for travelers who enjoy both warm and cool weather experiences.

August Weather in Winnipeg: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Winnipeg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Winnipeg, August typically has an average temperature of 19°C (67°F), with highs reaching up to 36°C (96°F) and lows dropping to around 4°C (39°F).

Data source: Temperature data for Winnipeg generated using information from the Copernicus Climate Change Service.

August Precipitation in Winnipeg

In Winnipeg in August, the total precipitation amount is 60 mm (2.4 in) spread over the course of 8 days.

August Precipitation Trends in Winnipeg

The chart displays monthly precipitation patterns in Winnipeg, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Winnipeg, August typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

August Humidity in Winnipeg

In Winnipeg in August, humidity is 77%. With an average temperature of 19°C (67°F), this humidity feels like a warm embrace, making travel slightly more challenging as the air clings to your skin, turning every step into a leisurely stroll through a sauna.

August Average Humidity in Winnipeg

This chart illustrates the average monthly humidity levels in Winnipeg, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Winnipeg is approximately 77%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Winnipeg

In Winnipeg in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Winnipeg.

Maximum UV Index Levels in Winnipeg for August

The chart shows the monthly maximum UV Index (UVI) for Winnipeg in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Winnipeg typically reaches 8, which falls under the very high exposure category.

Data source: Winnipeg August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How August Weather in Winnipeg Compares to Other Months

Weather in Winnipeg varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Winnipeg, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Winnipeg, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-14°C (6°F)	18 mm (0.7 inches)	94%	low
February Weather	-16°C (4°F)	15 mm (0.6 inches)	91%	moderate
March Weather	-5°C (23°F)	18 mm (0.7 inches)	90%	moderate
April Weather	2°C (36°F)	29 mm (1.1 inches)	81%	high
May Weather	12°C (54°F)	35 mm (1.4 inches)	74%	very high
June Weather	19°C (66°F)	76 mm (3.0 inches)	75%	very high
July Weather	21°C (70°F)	61 mm (2.4 inches)	74%	very high
August Weather	19°C (67°F)	60 mm (2.4 inches)	77%	very high
September Weather	13°C (57°F)	97 mm (3.8 inches)	75%	high
October Weather	5°C (41°F)	57 mm (2.3 inches)	78%	moderate
November Weather	-5°C (24°F)	27 mm (1.1 inches)	87%	low
December Weather	-11°C (13°F)	24 mm (0.9 inches)	93%	low