Gravenhurst (ON) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Gravenhurst.
Climate overview of Gravenhurst
Gravenhurst, Ontario, Canada, experiences significant temperature variation throughout the year. Summers bring daytime highs of 26°C (79°F) in July, while winters cool to -3°C (27°F) in January.
The city has a wet climate, receiving around 1099 mm (43 in) of rain/snowfall per year. August is the wettest month.
Gravenhurst Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Gravenhurst — and find the best time to visit.
Monthly Temperature in Gravenhurst
Depending on the time of the year, temperatures range from comfortable to very cold in Gravenhurst. On average, daytime temperatures range from a comfortable 26°C (79°F) in July to a very cold -3°C (27°F) in January.
Nighttime temperatures range from 15°C (59°F) in July to -13°C (9°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Gravenhurst
Gravenhurst has a relatively rain/snowy climate with high precipitation levels, averaging 1099 mm (43 in) of rain/snowfall annually. The wettest period in Gravenhurst occurs in August, which receives around 105 mm (4.1 in) of precipitation. During the driest month, February, Gravenhurst experiences moderate snowfall, totaling 68 mm (2.7 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Gravenhurst 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 Gravenhurst
Rainfall during this time ranges from 92 mm (3.6 in) in May to 105 mm (4.1 in) in August. This means you can expect a mix of sunny days and occasional showers. Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
Frequently asked questions about the climate in Gravenhurst
What is the best time to visit Gravenhurst?
July typically offers the most optimal weather in Gravenhurst. In contrast, January, February, March, October, November and December tend to have less optimal conditions.
What temperatures can I expect in Gravenhurst?
Daytime highs range from -3°C (27°F) in January to 26°C (79°F) in July. Nighttime lows range from -13°C (9°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Gravenhurst get?
Annual rainfall is around 1099 mm (43 in). August is the wettest month with 105 mm (4.1 in), while February is the driest with 68 mm (2.7 in).
Gravenhurst 3-Day Forecast
Gravenhurst (ON) 3-Day Forecast
Gravenhurst on the map
Gravenhurst 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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