Other facts from our historical weather data: Which is the hottest month in Valladolid? May has an average maximum temperature of 36°C (97°F) and is the hottest month of the year. Which is the coolest month in Valladolid? The coolest month is January with an average maximum temperature of 30°C (86°F). Which is the wettest month in Valladolid? September tops the wettest month list with 154mm (6.1 in) of rainfall. Which is the driest month in Valladolid? February is the driest month with 20mm (0.8 in) of precipitation. Which is the sunniest month in Valladolid? March is the sunniest month with an average of 273 hours of sunshine. 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.