Taking the local weather in Chumatlán into account is an important factor for planning your visit, especially if you plan to spend your trip by the pool. The hottest months are usually May and June, with an average temperature of 27°C, while the coldest months are January and February, with an average of 20°C. The rainiest months in Chumatlán are September, October, June and August, with each month seeing an average of 224 mm of rainfall.