Other facts from our historical weather data: Which is the warmest month in Thurlestone? August has an average maximum temperature of 19°C (66°F) and is the warmest month of the year. Which is the coldest month in Thurlestone? The coldest month is February with an average maximum temperature of 10°C (50°F). Which is the wettest month in Thurlestone? November tops the wettest month list with 116mm (4.6 in) of rainfall. Which is the driest month in Thurlestone? July is the driest month with 60mm (2.4 in) of precipitation. Which is the sunniest month in Thurlestone? May is the sunniest month with an average of 222 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.