Iceland Climatic Classifications

Code Description Group Number of states/regions States/regions
Et Tundra Polar 6 Eastern Region Northeastern Region Northwestern Region Southern Region Western Region Westfjords
Cfc Marine west coast, cool summer Temperate 2 Greater Reykjavik Southern Peninsula

Summary: Most regions (6) in Iceland lie in the Tundra climate zone (Köppen: Et). The mean average of annual temperatures range from a high of 6.41°C (43.54°F) in Southern Peninsula to a low of -0.76°C (30.63°F) in Northwestern Region.

Climate Iceland: Weather By Month

Month Jan Feb Mar Apr May Jun Jul Aug Sep Nov Oct Dec Year
Record high °C (°F) 4.22(39.6) 3.97(39.15) 3.99(39.18) 5.43(41.77) 8.17(46.71) 11.65(52.97) 13.37(56.07) 12.69(54.84) 10.09(50.16) 7.5(45.5) 5.44(41.79) 3.91(39.04) 13.37(56.07)
Average high °C (°F) 0.02(32.04) 0.23(32.41) 0.57(33.03) 2.69(36.84) 5.75(42.35) 9.44(48.99) 10.9(51.62) 10.39(50.7) 7.84(46.11) 4.3(39.74) 1.23(34.21) -0.57(30.97) 4.4(39.92)
Daily mean °C (°F) -1.2(29.84) -1.05(30.11) -0.72(30.7) 1.37(34.47) 4.5(40.1) 8.17(46.71) 9.66(49.39) 9.1(48.38) 6.65(43.97) 3.24(37.83) 0.2(32.36) -1.83(28.71) 3.17(37.71)
Average low °C (°F) -3.59(25.54) -3.46(25.77) -3.18(26.28) -1.43(29.43) 1.67(35.01) 5.5(41.9) 7.15(44.87) 6.67(44.01) 4.51(40.12) 1.32(34.38) -1.93(28.53) -4.34(24.19) 0.74(33.33)
Record low °C (°F) -9.09(15.64) -9.1(15.62) -8.89(16.0) -6.88(19.62) -2.91(26.76) 1.92(35.46) 3.82(38.88) 2.8(37.04) -0.16(31.71) -3.73(25.29) -7.78(18.0) -10.38(13.32) -10.38(13.32)
Average precipitation mm (inches) 89.69(3.53) 80.94(3.19) 70.56(2.78) 62.8(2.47) 45.28(1.78) 32.45(1.28) 46.55(1.83) 55.64(2.19) 89.85(3.54) 74.13(2.92) 64.75(2.55) 88.3(3.48) 66.74(2.63)
Average precipitation days (≥ 1.0 mm) 14.79 13.48 14.13 12.19 10.41 7.7 9.68 9.72 13.22 12.35 11.85 12.87 11.87
Average relative humidity (%) 83.43 83.42 82.35 81.63 79.81 79.38 81.72 81.96 83.33 83.36 82.42 82.22 82.09
Mean monthly sunshine hours 2.94 4.83 7.91 11.84 15.62 7.98 13.83 14.06 8.81 6.52 3.33 2.26 8.33

Iceland Climate Graph

Iceland’s Cities by Temperature

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

Southern Peninsula
6.41°C | 43.54°F
Greater Reykjavik
5.0°C | 41.0°F
Eastern Region
4.51°C | 40.12°F
Western Region
4.12°C | 39.42°F
Southern Region
3.61°C | 38.5°F
Westfjords
2.03°C | 35.65°F
Northeastern Region
0.47°C | 32.85°F
Northwestern Region
-0.76°C | 30.63°F

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