Other facts from our historical weather data: Which is the warmest month in Cork? July has an average maximum temperature of 19°C (66°F) and is the warmest month of the year. Which is the coldest month in Cork? The coldest month is February with an average maximum temperature of 10°C (50°F). Which is the wettest month in Cork? October tops the wettest month list with 102mm (4 in) of rainfall. Which is the driest month in Cork? May is the driest month with 72mm (2.8 in) of precipitation. Which is the sunniest month in Cork? May is the sunniest month with an average of 194 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.