Port Colborne (ON) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Port Colborne.
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 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
Daily hours of sunshine
Daily percentage of sunshine
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
Best Time to Visit Port Colborne
The weather does bring rainfall during this period, between 101 mm (4 in) and 116 mm (4.6 in). Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
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.
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) 3-Day Forecast
Port Colborne on the map
Port Colborne is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Niagara Falls
27°C (81°F) Montréal28°C (82°F) Ottawa27°C (81°F) Quebec City
26°C (79°F) Toronto26°C (79°F) Calgary24°C (75°F) Vancouver22°C (72°F) Whistler
19°C (66°F) 
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 5 most beautiful lakes in Canada
Explore Canada's stunning lakes: Lake Louise, Lake Superior, Maligne Lake, Emerald Lake, and Lake Okanagan, each offering unique beauty and activities.
Canoeing the south Nahannii
The South Nahanni in the northwest of Canada is one of the most impressive wilderness rivers in the world. Canoeing the south Nahanni is something you must add to your bucket list.
See Polar Bears in Churchill Canada
Thousands of bears gather at the small town of Churchill. In the evening the northern lights give a light show against the dark evening sky. An unforgettable experience.
Banff National Park
Snowy mountains, clear blue lakes and green forests make Banff National Park a wonderful bucket list destination. The pristine wilderness is a mecca for walkers.