Dumbarton Climate by Month
The climate in Dumbarton is marked by big temperature swings throughout the year.
Temperatures range from pleasant during the warmest months
to cold in the cooler months.
It also has a relatively rain/snowy climate with high levels of precipitation.
Let’s explore the climate details in depth to provide you with a complete overview.
Average day and night temperature
In Dumbarton, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a pleasant 19°C in July to a chilly 8°C in December. Nighttime temperatures can drop, with averages reaching 2°C in December.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Dumbarton experiences significant rain/snowfall throughout the year, averaging 1520 mm of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, January, sees around 158 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, May, still receives a respectable 96 mm of rainfall.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
In Dumbarton, summer days are longer and more sunny, with daily sunshine hours peaking at 6.3 hours in May. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 1.2 hours per average day.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is moderate throughout the year in Dumbarton.
Relative humidity over the year
The best time of year to visit Dumbarton in the United Kingdom
Other facts from our historical weather data:Most rainfall (rainy season) is seen in January, October and December.
July has an average maximum temperature of 19°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 8°C.
January tops the wettest month list with 158 mm of rainfall.
May is the driest month with 96 mm of precipitation.
May is the sunniest month with an average of 188 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.
