Wellington (ON) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Wellington.
Climate overview of Wellington
Temperatures in Wellington, Ontario, Canada, vary greatly throughout the year. July is the hottest month at 26°C (79°F), while January is the coldest at 0°C (32°F).
Rain/snowfall is high, totalling around 1048 mm (41 in) per year. October is the wettest month and February the driest.
Wellington Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Wellington — and find the best time to visit.
Monthly Temperature in Wellington
The climate in Wellington is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a comfortable 26°C (79°F) in July, the warmest time of the year, to a very cold 0°C (32°F) during cooler months like January.
At night, you can expect temperatures ranging from 19°C (66°F) in July to around -8°C (18°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Wellington
Wellington has a notably wet climate with abundant precipitation, recording 1048 mm (41 in) of rain/snowfall per year. Year-round, Wellington has a balanced climate with minimal variation in precipitation. The difference between the wettest month, October, with 103 mm (4.1 in), and the driest month, February, with 72 mm (2.8 in), is minimal. For more details, please visit our Wellington 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 Wellington
Frequently asked questions about the climate in Wellington
What is the best time to visit Wellington?
June, July, August and September typically offer the most optimal weather in Wellington. In contrast, January, February, March, April, November and December tend to have less optimal conditions.
What temperatures can I expect in Wellington?
Daytime highs range from 0°C (32°F) in January to 26°C (79°F) in July. Nighttime lows range from -8°C (18°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Wellington get?
Annual rainfall is around 1048 mm (41 in). October is the wettest month with 103 mm (4.1 in), while February is the driest with 72 mm (2.8 in).
Wellington 3-Day Forecast
Wellington (ON) 3-Day Forecast
Wellington on the map
Wellington 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) 
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