Taking the local weather in San Juan Nepomuceno 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 February and March, with an average temperature of 28°C, while the coldest months are November and December, with an average of 26°C. The rainiest months in San Juan Nepomuceno are May, August, October and June, with each month seeing an average of 257 mm of rainfall.