Portneuf Sur Mer (QC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Portneuf Sur Mer.
Climate overview of Portneuf Sur Mer
The climate in Portneuf Sur Mer, Quebec, Canada, is marked by large temperature swings across the seasons, ranging from 20°C (68°F) in July to -7°C (19°F) in January.
With around 1132 mm (45 in) of annual rain/snowfall, Portneuf Sur Mer has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has pleasant summers and very cold winters. The wettest month is October.
Portneuf Sur Mer Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Portneuf Sur Mer - and find the best time to visit.
Monthly Temperature in Portneuf Sur Mer
In Portneuf Sur Mer, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a pleasant 20°C (68°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -7°C (19°F).
At night, temperatures range from around 13°C (55°F) in July to -15°C (5°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Portneuf Sur Mer
Portneuf Sur Mer experiences significant rain/snowfall throughout the year, averaging 1132 mm (45 in) of precipitation annually. Portneuf Sur Mer experiences moderate seasonal variation in rainfall, with monthly averages ranging from 124 mm (4.9 in) in October, the wettest month, and 70 mm (2.8 in) in February, the driest month. For more details, please visit our Portneuf Sur Mer 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 Portneuf Sur Mer
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and August
- Warmest weather: July and August
- Fewest rainy days: February, March and April
- Seasonal pattern: Pleasant summers and very cold winters
- Coldest conditions: January, with freezing nights around -15°C (5°F).
Frequently asked questions about the climate in Portneuf Sur Mer
What is the best time to visit Portneuf Sur Mer?
July and August typically offer the most optimal weather in Portneuf Sur Mer. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions. Portneuf Sur Mer has pleasant summers and very cold winters.
What temperatures can I expect in Portneuf Sur Mer?
Daytime highs range from -7°C (19°F) in January to 20°C (68°F) in July. Nighttime lows range from -15°C (5°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Portneuf Sur Mer get?
Annual rainfall is around 1132 mm (45 in). October is the wettest month with 124 mm (4.9 in), while February is the driest with 70 mm (2.8 in).
Portneuf Sur Mer 3-Day Forecast
Portneuf Sur Mer on the map
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Popular this month
Where to go in September - average daytime high across popular destinations.
Toronto
22°C (72°F) Niagara Falls23°C (73°F) Montréal
22°C (72°F) Ottawa22°C (72°F) Quebec City
20°C (68°F) Vancouver19°C (66°F) Calgary19°C (66°F) Whistler15°C (59°F) 
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