Dorset (ON) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Dorset.
Climate overview of Dorset
Dorset, Ontario, Canada, sees big temperature differences between seasons, with July peaking at 24°C (75°F) and January dropping to -5°C (23°F).
The city has a wet climate, receiving around 1113 mm (44 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and very cold winters. October is the wettest month.
Dorset Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Dorset - and find the best time to visit.
Monthly Temperature in Dorset
Visitors to Dorset can expect significant temperature changes throughout the year. On average, daytime temperatures range from a comfortable 24°C (75°F) in July to a very cold -5°C (23°F) in January.
Nighttime temperatures range from 14°C (57°F) in July to -14°C (7°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Dorset
Dorset is known for its substantial rain/snowfall, with annual precipitation reaching 1113 mm (44 in). The wettest period in Dorset occurs in October, which receives around 105 mm (4.1 in) of precipitation. During the driest month, February, Dorset experiences moderate snowfall, totaling 68 mm (2.7 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Dorset Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Dorset
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July
- Warmest weather: July and August
- Fewest rainy days: April and July
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -14°C (7°F).
Frequently asked questions about the climate in Dorset
What is the best time to visit Dorset?
July typically offers the most optimal weather in Dorset. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions. Dorset has warm summers and very cold winters.
What temperatures can I expect in Dorset?
Daytime highs range from -5°C (23°F) in January to 24°C (75°F) in July. Nighttime lows range from -14°C (7°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Dorset get?
Annual rainfall is around 1113 mm (44 in). October is the wettest month with 105 mm (4.1 in), while February is the driest with 68 mm (2.7 in).
Dorset 3-Day Forecast
Dorset on the map
Dorset is highlighted - select any city to see its climate.
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