Cork Climate & Temperature. 1  Cork, Ireland is at 51°53'N, 8°28'W, 15 m (49 ft). 2  Cork has a marine west coast climate that is mild with no dry season, warm summers. 3  According to the Holdridge life zones system of bioclimatic classification Cork is situated in or near the cool temperate moist forest biome. The average annual temperature is 10.3 degrees Celsius (50.6 degrees Fahrenheit). See the temperatures page for a monthly breakdown and the fixed scale graph. Average monthly temperatures vary by 10.5 °C (18.9°F). This indicates that the continentality type is hyperoceanic, subtype barely hyperoceanic.