Other facts from our historical weather data: Which is the warmest month in Wells next the Sea? August has an average maximum temperature of 20°C (68°F) and is the warmest month of the year. Which is the coldest month in Wells next the Sea? The coldest month is February with an average maximum temperature of 8°C (46°F). Which is the wettest month in Wells next the Sea? October tops the wettest month list with 89mm (3.5 in) of rainfall. Which is the driest month in Wells next the Sea? April is the driest month with 51mm (2 in) of precipitation. Which is the sunniest month in Wells next the Sea? July is the sunniest month with an average of 213 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.