Taking the local weather in San Pedro de Cajas 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 October, with an average temperature of 10°C, while the coldest months are July and August, with an average of 8°C. The rainiest months in San Pedro de Cajas are February, January, December and March, with each month seeing an average of 350 mm of rainfall.