September in Harrogate averages a daily high of 17.5°C with nights around 10.2°C. Expect roughly 13.2 wet days totalling 68mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Harrogate is June–September.
Based on BRADFORD, UK (25.1km), 1995–2024. 29 years of September data.