Planning for the weather is an important factor for making your trip to Bang Phli a success, especially when you're splurging. The hottest months are usually April and May, with an average temperature of 30°C, while the coldest months are December and January, with an average of 28°C. The rainiest months in Bang Phli are September, October, July and August, with each month seeing an average of 187 mm of rainfall.