Mille-Isles (QC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Mille-Isles.
Climate overview of Mille-Isles
Mille-Isles, Quebec, Canada, experiences significant temperature variation throughout the year. Summers bring daytime highs of 26°C (79°F) in July, while winters cool to -5°C (23°F) in January.
The city has a wet climate, receiving around 1253 mm (49 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and very cold winters. June is the wettest month. July is the sunniest month, averaging 9.1 hours of sunshine per day.
Mille-Isles Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mille-Isles - and find the best time to visit.
Monthly Temperature in Mille-Isles
Depending on the time of the year, temperatures range from comfortable to very cold in Mille-Isles. On average, daytime temperatures range from a comfortable 26°C (79°F) in July to a very cold -5°C (23°F) in January.
Nighttime temperatures range from 14°C (57°F) in July to -16°C (3°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Mille-Isles
Mille-Isles has a relatively rain/snowy climate with high precipitation levels, averaging 1253 mm (49 in) of rain/snowfall annually. The wettest period in Mille-Isles occurs in June, which receives around 122 mm (4.8 in) of precipitation. During the driest month, February, Mille-Isles experiences moderate snowfall, totaling 78 mm (3.1 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Mille-Isles 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 Mille-Isles
In Mille-Isles, summer days are longer and more sunny, with daily sunshine hours peaking at 9.1 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.7 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
Humidity in Mille-Isles by Month
The relative humidity is high throughout the year in Mille-Isles.
The city experiences its highest humidity in December, reaching 71%. In May, the humidity drops to its lowest level at 51%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Mille-Isles
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: 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 -16°C (3°F).
Frequently asked questions about the climate in Mille-Isles
What is the best time to visit Mille-Isles?
June, July, August and September typically offer the most optimal weather in Mille-Isles. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions. Mille-Isles has warm summers and very cold winters.
What temperatures can I expect in Mille-Isles?
Daytime highs range from -5°C (23°F) in January to 26°C (79°F) in July. Nighttime lows range from -16°C (3°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Mille-Isles get?
Annual rainfall is around 1253 mm (49 in). June is the wettest month with 122 mm (4.8 in), while February is the driest with 78 mm (3.1 in).
How sunny is Mille-Isles?
Mille-Isles receives around 2,042 hours of sunshine per year. July is the sunniest month with 272 hours, while December is the cloudiest with just 80 hours. Overall, Mille-Isles enjoys abundant sunshine.
Mille-Isles 3-Day Forecast
Mille-Isles on the map
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