Other facts from our historical weather data: Which is the warmest month in Boat of Garten? July has an average maximum temperature of 18°C (64°F) and is the warmest month of the year. Which is the coldest month in Boat of Garten? The coldest month is February with an average maximum temperature of 5°C (41°F). Which is the wettest month in Boat of Garten? August tops the wettest month list with 101mm (4 in) of rainfall. Which is the driest month in Boat of Garten? April is the driest month with 84mm (3.3 in) of precipitation. Which is the sunniest month in Boat of Garten? May is the sunniest month with an average of 178 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.