Dundas (ON) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Dundas.
Climate overview of Dundas
Dundas, Ontario, Canada, sees big temperature differences between seasons, with July peaking at 28°C (82°F) and January dropping to 0°C (32°F).
The city receives around 967 mm (38 in) of rain/snowfall per year. It experiences warm summers and very cold winters. June is the wettest month and February the driest. The sunniest month is July, with 10.2 hours of sunshine per day on average.
Dundas Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Dundas - and find the best time to visit.
Monthly Temperature in Dundas
Visitors to Dundas can expect significant temperature changes throughout the year. On average, daytime temperatures range from a comfortable 28°C (82°F) in July to a very cold 0°C (32°F) in January.
Nighttime temperatures range from 17°C (63°F) in July to -9°C (16°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Dundas
Generally, Dundas experiences moderate precipitation patterns, averaging 967 mm (38 in) yearly. The wettest period in Dundas occurs in June, which receives around 98 mm (3.9 in) of precipitation. During the driest month, February, Dundas experiences moderate snowfall, totaling 65 mm (2.6 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Dundas Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Dundas
In Dundas, summer days are longer and more sunny, with daily sunshine hours peaking at 10.2 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.4 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Best Time to Visit Dundas
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -9°C (16°F).
Frequently asked questions about the climate in Dundas
What is the best time to visit Dundas?
May, June, July, August and September typically offer the most optimal weather in Dundas. In contrast, January, February, March, November and December tend to have less optimal conditions. Dundas has warm summers and very cold winters.
What temperatures can I expect in Dundas?
Daytime highs range from 0°C (32°F) in January to 28°C (82°F) in July. Nighttime lows range from -9°C (16°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Dundas get?
Annual rainfall is around 967 mm (38 in). June is the wettest month with 98 mm (3.9 in), while February is the driest with 65 mm (2.6 in).
How sunny is Dundas?
Dundas receives around 2,120 hours of sunshine per year. July is the sunniest month with 305 hours, while December is the cloudiest with just 72 hours. Overall, Dundas enjoys abundant sunshine.
Dundas 3-Day Forecast
Dundas on the map
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