August in Chumphon averages a daily high of 32°C with nights around 24.5°C. Expect roughly 21.4 wet days totalling 209mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Chumphon is December–March.
Based on CHUMPHON, TH (1.5km), 1995–2024. 20 years of August data.