July in Barnsley averages a daily high of 21.5°C with nights around 12.9°C. Expect roughly 12.7 wet days totalling 66.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Barnsley is June–September.
Based on SHEFFIELD, UK (18.8km), 1995–2024. 30 years of July data.