Taking the local weather in San Pedro 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 April and March, with an average temperature of 27°C, while the coldest months are August and September, with an average of 25°C. The rainiest months in San Pedro are June, May, October and September, with each month seeing an average of 307 mm of rainfall.