August in Hà Tiên averages a daily high of 29.9°C. Expect roughly 21.3 wet days totalling 423.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Hà Tiên is December–February.
Based on PHU QUOC, VM (59.9km), 1995–2024. 15 years of August data.