Overview: DumfriesDumfries (United Kingdom) is a place with a mild climate. The day temperatures range from 7 °C (44 °F) in December to 20 °C (67 °F) in July. Temperatures during the night go from 1 °C (34 °F) in February to 12 °C (53 °F) in July. The driest month is April with just 13 days of rain, on the contrary, the month when it rains the most is January with 18 days of rain.