August in Brentwood averages a daily high of 23.1°C with nights around 12.3°C. Expect roughly 10.4 wet days totalling 51.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Brentwood is June–September.
Based on WRITTLE, UK (15km), 1995–2024. 29 years of August data.