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Port Colborne (ON) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Port Colborne.
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Climate overview of Port Colborne
Port Colborne, Ontario, Canada, sees big temperature differences between seasons, with July peaking at 26°C (79°F) and February dropping to 1°C (34°F).
Rain/snowfall is high, totalling around 1215 mm (48 in) per year. June is the wettest month and February the driest. The city also experiences warm summers and very cold winters. The most sunshine falls in July, with an average of 10.2 hours of daily sunshine.
Port Colborne Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Port Colborne - and find the best time to visit.
Monthly Temperature in Port Colborne
Visitors to Port Colborne can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 26°C (79°F) in July, the warmest time of the year, to a very cold 1°C (34°F) during cooler months like February.
At night, you can expect temperatures ranging from 20°C (68°F) in July to around -6°C (21°F) during February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Port Colborne
Port Colborne is known for its substantial rain/snowfall, with annual precipitation reaching 1215 mm (48 in). Year-round, Port Colborne has a balanced climate with minimal variation in precipitation. The difference between the wettest month, June, with 116 mm (4.6 in), and the driest month, February, with 77 mm (3 in), is minimal. For more details, please visit our Port Colborne 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 Port Colborne
Seasonal changes in sunshine hours are quite dramatic in Port Colborne. While July receives considerable daily sunshine with up to 10.2 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.3 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Buffalo, the United States of America (30 KM, 18 Miles).
Daily hours of sunshine
Data from: Buffalo, the United States of America (30 KM, 18 Miles).
Daily percentage of sunshine
Data from: Buffalo, the United States of America (30 KM, 18 Miles).
Humidity in Port Colborne by Month
The relative humidity is high throughout the year in Port Colborne.
The city experiences its highest humidity in December, reaching 77%. In April, the humidity drops to its lowest level at 67%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Buffalo, the United States of America (30 KM, 18 Miles).
Best Time to Visit Port Colborne
For comfortable weather, consider visiting Port Colborne in June, July, August and September. Conditions are usually least favourable in January, February, March, April, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
cold
Feb
cold
Mar
cold
Apr
wet
May
good
Jun
very good
Jul
very good
Aug
very good
Sep
very good
Oct
mixed
Nov
wet
Dec
cold
- Best overall: June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: June, July, August and September
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: February, with freezing nights around -6°C (21°F).
Frequently asked questions about the climate in Port Colborne
What is the best time to visit Port Colborne?
June, July, August and September typically offer the most optimal weather in Port Colborne. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Port Colborne has warm summers and very cold winters.
What temperatures can I expect in Port Colborne?
Daytime highs range from 1°C (34°F) in February to 26°C (79°F) in July. Nighttime lows range from -6°C (21°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Port Colborne get?
Annual rainfall is around 1215 mm (48 in). June is the wettest month with 116 mm (4.6 in), while February is the driest with 77 mm (3 in).
How sunny is Port Colborne?
Port Colborne receives around 2,211 hours of sunshine per year. July is the sunniest month with 307 hours, while December is the cloudiest with just 68 hours. Overall, Port Colborne enjoys abundant sunshine.
Port Colborne 3-Day Forecast
Port Colborne on the map
Port Colborne is highlighted - select any city to see its climate.
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