Arrochar Weather & Climate: Best Time to Visit

The climate in Arrochar is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a moderate 18°C (64°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 10°C (50°F) in July to 1°C (34°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Arrochar has a notably wet climate with abundant precipitation, recording 1982 mm (78 in) of rain/snowfall per year. Arrochar experiences moderate seasonal variation in rainfall, with monthly averages ranging from 213 mm (8.4 in) in January, the wettest month, and 124 mm (4.9 in) in April, the driest month. For more details, please visit our Arrochar Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Arrochar can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 6.3 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 1.2 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

The relative humidity is high throughout the year in Arrochar.

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