October in Grays averages a daily high of 16.2°C with nights around 9.1°C. Expect roughly 13.8 wet days totalling 67.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Grays is May–September.
Based on HEATHROW, UK (8.6km), 1995–2024. 30 years of October data.