average temp in dublin
2.0. The highest average temperature in Dublin is July at 71.1 degrees. The coldest average temperature in Dublin is January at 46.2 degrees. The most monthly precipitation in Dublin occurs in February with 2.8 inches.The Dublin weather information is based on the average of the previous 3-7 years of data. Loading...he Dublin weather information is based on the average of the previous 3-7 years of data.