Other facts from our historical weather data: Which months have the greatest rainfall in Caldes? Most rainfall (rainy season) is seen in May, June, July and August. When is winter in Caldes? The coldest season / winter is in the following months: January, February and December. Which is the warmest month in Caldes? July has an average maximum temperature of 20°C (68°F) and is the warmest month of the year. Which is the coldest month in Caldes? The coldest month is January with an average maximum temperature of -1°C (30°F). Which is the wettest month in Caldes? July tops the wettest month list with 213mm (8.4 in) of rainfall. Which is the driest month in Caldes? January is the driest month with 50mm (2 in) of precipitation. No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.