Taking into account the local weather in Silves is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually September and October with an average temp of 84°F, while the coldest months are June and January with an average of 79°F. The rainiest months in Silves are March, April, February, and January, with each month seeing an average of 15 inches of rainfall.