August in Carlisle averages a daily high of 19°C with nights around 10.4°C. Expect roughly 15.9 wet days totalling 76.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Carlisle is June–September.
Based on NEWTON RIGG, UK (26.9km), 1995–2024. 26 years of August data.