Mayne Island (BC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Mayne Island.
Climate overview of Mayne Island
Mayne Island, British Columbia, Canada, sees big temperature differences between seasons, with August peaking at 21°C (70°F) and January dropping to 8°C (46°F).
Rainfall is high, totalling around 1213 mm (48 in) per year. November is the wettest month and July the driest. The city also experiences distinct dry (July to August) and wet (November to January) seasons, with pleasant summers and cold winters. July is the sunniest month, averaging 11.0 hours of sunshine per day.
Mayne Island Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mayne Island - and find the best time to visit.
Monthly Temperature in Mayne Island
Visitors to Mayne Island can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a pleasant 21°C (70°F) in August, the warmest time of the year, to a chilly 8°C (46°F) during cooler months like January.
At night, you can expect temperatures ranging from 15°C (59°F) in August to around 4°C (39°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Mayne Island
Mayne Island is known for its substantial rainfall, with annual precipitation reaching 1213 mm (48 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, November it receives heavy rainfall, averaging 187 mm (7.4 in) of precipitation, recorded across 18 rainy days. In contrast, the driest month July brings less rainfall, with 26 mm (1 in) over 6 rainy days. For more details, please visit our Mayne Island 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 Mayne Island
Seasonal changes in sunshine hours are quite dramatic in Mayne Island. While July receives considerable daily sunshine with up to 11.0 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
Best Time to Visit Mayne 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
- Most sunshine: July
- Fewest rainy days: July and August
- Wettest months: January, February, March, October, November and December, when rainfall is highest.
- Seasonal pattern: Distinct dry (July to August) and wet (November to January) seasons, with pleasant summers and cold winters
Frequently asked questions about the climate in Mayne Island
What is the best time to visit Mayne Island?
July and August typically offer the most optimal weather in Mayne Island. In contrast, January, February, March, November and December tend to have less optimal conditions. Mayne Island has distinct dry (July to August) and wet (November to January) seasons, with pleasant summers and cold winters.
What temperatures can I expect in Mayne Island?
Daytime highs range from 8°C (46°F) in January to 21°C (70°F) in August. Nighttime lows range from 4°C (39°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Mayne Island get?
Annual rainfall is around 1213 mm (48 in). November is the wettest month with 187 mm (7.4 in), while July is the driest with 26 mm (1 in).
How sunny is Mayne Island?
Mayne Island receives around 2,221 hours of sunshine per year. July is the sunniest month with 331 hours, while December is the cloudiest with just 68 hours. Overall, Mayne Island enjoys abundant sunshine.
Mayne Island 3-Day Forecast
Mayne Island on the map
Mayne Island is highlighted - select any city to see its climate.
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