Denman Island (BC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Denman Island.
Climate overview of Denman Island
Denman Island, British Columbia, Canada, experiences significant temperature variation throughout the year. Summers bring daytime highs of 23°C (73°F) in July, while winters cool to 7°C (45°F) in January.
With around 1951 mm (77 in) of annual rain/snowfall, Denman Island has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has a distinct rainy season from October to March, with warm summers and cold winters. The wettest month is November.
Denman Island Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Denman Island - and find the best time to visit.
Monthly Temperature in Denman Island
Depending on the time of the year, temperatures range from comfortable to chilly in Denman Island. Average daytime temperatures reach a comfortable 23°C (73°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 7°C (45°F).
At night, temperatures range from around 14°C (57°F) in July to 2°C (36°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Denman Island
Denman Island has a relatively rain/snowy climate with high precipitation levels, averaging 1951 mm (77 in) of rain/snowfall annually. Denman Island can be quite wet during November, receiving approximately 295 mm (12 in) of precipitation over 19 rainy days.
In contrast, during the driest month (July), you will experience much drier conditions, with 44 mm (1.7 in) of precipitation spread across 8 rainy days. For more details, please visit our Denman Island 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 Denman Island
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and August
- Warmest weather: July and August
- Fewest rainy days: July, August and September
- Wettest months: January, February, March, October, November and December, when rainfall is highest.
- Seasonal pattern: A distinct rainy season from October to March, with warm summers and cold winters
Frequently asked questions about the climate in Denman Island
What is the best time to visit Denman Island?
July and August typically offer the most optimal weather in Denman Island. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions. Denman Island has a distinct rainy season from October to March, with warm summers and cold winters.
What temperatures can I expect in Denman Island?
Daytime highs range from 7°C (45°F) in January to 23°C (73°F) in July. Nighttime lows range from 2°C (36°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Denman Island get?
Annual rainfall is around 1951 mm (77 in). November is the wettest month with 295 mm (12 in), while July is the driest with 44 mm (1.7 in).
Denman Island 3-Day Forecast
Denman Island on the map
Denman Island is highlighted - select any city to see its climate.
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