Cornwall Climate by Month
Cornwall experiences great temperature shifts.
The city's weather can transition from warm days
to very cold weather.
It is also known for its large amounts of rain/snowfall.
Now, let’s explore all the climate details to give you a full picture.
Average day and night temperature
The climate in Cornwall is known for significant temperature differences throughout the year, making the weather dynamic. Typically, daytime temperatures range from a comfortable 24°C in July to a very cold -2°C in the coolest month, February. Nights are cooler, with temperatures generally dropping to -10°C, particularly during the colder months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Cornwall has a notably wet climate with abundant precipitation, recording 1140 mm of rain/snowfall per year. Precipitation levels in Cornwall remain relatively steady throughout the year. December has the most snow/rain, with 118 mm over 19 days. In July, this drops slightly to 78 mm, making the city's climate fairly predictable.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
For those who appreciate different seasons, Cornwall serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 8.5 hours of sunshine daily, and embrace the darker days in November, offering only 2.1 hours of daily sunlight.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
The best time of year to visit Cornwall in Canada
During the months of July, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
The coldest season / winter is in the following months: January, February, March and December.
July has an average maximum temperature of 24°C and is the warmest month of the year.
The coldest month is February with an average maximum temperature of -2°C.
December tops the wettest month list with 118 mm of rainfall.
July is the driest month with 78 mm of precipitation.
July is the sunniest month with an average of 254 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
