Dunoon Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Dunoon.
Climate overview of Dunoon
Dunoon, Strathclyde, United Kingdom, experiences moderate temperature changes through the seasons. July is the warmest month with daytime highs of 18°C (64°F), while January is the coolest at 8°C (46°F).
The city receives considerable rain/snowfall, with around 1720 mm (68 in) annually. January is the wettest month. It has pleasant summers and cold winters. The most sunshine falls in May, with an average of 6.3 hours of daily sunshine.
Dunoon Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Dunoon - and find the best time to visit.
Monthly Temperature in Dunoon
In Dunoon, seasonal changes bring about a moderate variation in temperatures. Typically, average maximum daytime temperatures range from a pleasant 18°C (64°F) in July to a chilly 8°C (46°F) in the coolest month, January.
Nights vary from 12°C (54°F) in July to around 3°C (37°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Dunoon
Dunoon has a relatively rain/snowy climate with high precipitation levels, averaging 1720 mm (68 in) of rain/snowfall annually. Dunoon offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month January (179 mm (7 in)) and the driest month May (105 mm (4.1 in)) is not too significant. For more details, please visit our Dunoon 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 Dunoon
For those who appreciate different seasons, Dunoon serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 6.3 hours of sunshine daily, and embrace the darker days in January, offering only 1.2 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Dunoon by Month
The relative humidity is high throughout the year in Dunoon.
The city experiences its highest humidity in January, reaching 87%. In May, the humidity drops to its lowest level at 68%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Dunoon
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: June, July and August
- Most sunshine: May
- Seasonal pattern: Pleasant summers and cold winters
Frequently asked questions about the climate in Dunoon
What is the best time to visit Dunoon?
July and August typically offer the most optimal weather in Dunoon. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions. Dunoon has pleasant summers and cold winters.
What temperatures can I expect in Dunoon?
Daytime highs range from 8°C (46°F) in January to 18°C (64°F) in July. Nighttime lows range from 3°C (37°F) to 12°C (54°F).
How much rain does Dunoon get?
Annual rainfall is around 1720 mm (68 in). January is the wettest month with 179 mm (7 in), while May is the driest with 105 mm (4.1 in).
How sunny is Dunoon?
Dunoon receives around 1,290 hours of sunshine per year. May is the sunniest month with 188 hours, while January is the cloudiest with just 37 hours.
Dunoon 3-Day Forecast
Dunoon on the map
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