April in Chelmsford averages a daily high of 14.5°C with nights around 4°C. Expect roughly 10.2 wet days totalling 35.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Chelmsford is June–September.
Based on WRITTLE, UK (2.7km), 1995–2024. 29 years of April data.