Taking the local weather in Hacienda San Juan 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 November and December, with an average temperature of 25°C, while the coldest months are August and September, with an average of 24°C. The rainiest months in Hacienda San Juan are March, February, April and January, with each month seeing an average of 413 mm of rainfall.