Taking the local weather in Guia Lopes da Laguna into account can help you maximise your time at the pool during your trip. The hottest months are usually October and September, with an average temperature of 26°C, while the coldest months are July and June, with an average of 21°C. The rainiest months in Guia Lopes da Laguna are February, January, December and March, with each month seeing an average of 243 mm of rainfall.