Ireland Climatic Classifications

Summary: Most regions (26) in Ireland lie in the Marine west coast, warm summer climate zone (Köppen: Cfb). The mean average of annual temperatures range from a high of 11.05°C (51.89°F) in County Wexford to a low of 9.29°C (48.72°F) in County Monaghan.

Climate Ireland: Weather By Month

Month Jan Feb Mar Apr May Jun Jul Aug Sep Nov Oct Dec Year
Record high °C (°F) 8.3(46.94) 8.53(47.35) 9.83(49.69) 12.5(54.5) 14.6(58.28) 17.09(62.76) 18.39(65.1) 17.84(64.11) 16.3(61.34) 13.62(56.52) 10.63(51.13) 8.94(48.09) 18.39(65.1)
Average high °C (°F) 7.13(44.83) 7.84(46.11) 9.2(48.56) 11.66(52.99) 13.89(57.0) 16.33(61.39) 17.67(63.81) 17.24(63.03) 15.65(60.17) 12.88(55.18) 9.4(48.92) 7.48(45.46) 12.2(53.96)
Daily mean °C (°F) 5.32(41.58) 5.62(42.12) 6.84(44.31) 9.27(48.69) 11.77(53.19) 14.31(57.76) 15.66(60.19) 15.1(59.18) 13.38(56.08) 10.67(51.21) 7.42(45.36) 5.84(42.51) 10.1(50.18)
Average low °C (°F) 2.61(36.7) 2.41(36.34) 2.61(36.7) 4.11(39.4) 6.46(43.63) 9.0(48.2) 10.84(51.51) 10.6(51.08) 9.14(48.45) 7.21(44.98) 4.55(40.19) 3.25(37.85) 6.07(42.93)
Record low °C (°F) 0.95(33.71) 0.82(33.48) 1.19(34.14) 2.73(36.91) 5.23(41.41) 7.88(46.18) 9.58(49.24) 9.41(48.94) 7.92(46.26) 5.87(42.57) 3.26(37.87) 1.68(35.02) 0.82(33.48)
Average precipitation mm (inches) 83.87(3.3) 81.67(3.22) 69.58(2.74) 57.86(2.28) 74.2(2.92) 92.26(3.63) 86.68(3.41) 93.09(3.66) 75.45(2.97) 83.96(3.31) 94.2(3.71) 95.33(3.75) 82.35(3.24)
Average precipitation days (≥ 1.0 mm) 15.28 14.91 13.24 12.41 15.61 17.38 17.81 18.86 13.9 14.5 14.73 15.31 15.33
Average relative humidity (%) 88.75 86.71 84.92 84.21 85.29 86.53 87.51 87.67 88.38 88.49 89.24 89.49 87.27
Mean monthly sunshine hours 5.44 6.1 8.39 11.32 12.01 13.41 12.34 11.49 9.61 6.35 5.74 5.25 8.95

Ireland Climate Graph

Ireland’s Cities by Temperature

Ireland’s states/regions ranking by average yearly temperature:

County Wexford
11.05°C | 51.89°F
County Waterford
10.9°C | 51.62°F
County Cork
10.85°C | 51.53°F
County Clare
10.68°C | 51.22°F
County Wicklow
10.67°C | 51.21°F
County Galway
10.61°C | 51.1°F
County Limerick
10.44°C | 50.79°F
County Mayo
10.28°C | 50.5°F
County Kerry
10.25°C | 50.45°F
County Sligo
10.14°C | 50.25°F
County Kilkenny
10.09°C | 50.16°F
County Meath
10.05°C | 50.09°F
County Dublin
9.98°C | 49.96°F
County Carlow
9.98°C | 49.96°F
County Tipperary
9.93°C | 49.87°F
County Roscommon
9.92°C | 49.86°F
County Louth
9.87°C | 49.77°F
County Offaly
9.8°C | 49.64°F
County Donegal
9.78°C | 49.6°F
County Longford
9.75°C | 49.55°F
County Westmeath
9.73°C | 49.51°F
County Laois
9.7°C | 49.46°F
County Kildare
9.7°C | 49.46°F
County Leitrim
9.63°C | 49.33°F
County Cavan
9.54°C | 49.17°F
County Monaghan
9.29°C | 48.72°F

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