Common information

Capital
Saint Peter Port
Population
65 228

List of largest cities in Guernsey

Weather, climate, temperature by months in Guernsey

Season Autumn Winter Spring Summer
Month Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Year
Record high, °C 26 21 16 16 12 13 17 22 25 30 28 32 32
Average high, °C 18 15 12 10 9 8 10 12 15 18 20 20 14
Average temperature, °C 16 13 10 8 7 7 8 9 12 15 17 17 11
Average low, °C 13 11 8 6 5 5 6 7 9 12 14 14 9
Record low, °C 7 4 0 -1 -7 -7 -1 -1 0 6 8 9 -7
Rain, days 9 13 15 16 15 11 12 10 9 7 8 8 131
Snow, days 0 0 1 1 3 4 2 1 0 0 0 0 12
Fog, days 11 6 6 6 8 9 11 10 12 15 17 15 126
Thunderstorms, days 1 1 1 1 1 0 0 0 1 1 2 1 10
Average precipitation, mm. 72 85 106 107 97 71 66 50 53 44 41 53 845
Relative humidity, % 80 85 85 85 90 85 85 85 80 85 85 85 85
Relative humidity morning, % 89 85 83 84 85 86 88 87 89 90 92 92 88
Relative humidity evening, % 76 77 79 81 82 80 79 73 74 74 75 73 77
Wind speed, km/h 20 23 24 25 27 24 23 21 20 19 19 18 22
Monthly sunshine, часов 200 137 85 80 91 113 170 178 215 241 256 241 2008
Day Length, часов 13 11 10 9 9 11 13 14 16 17 16 15 13
Dew point, °C 11 9 6 5 3 3 4 5 7 10 12 13 88
Growing degree-day, °C 142 69 0 0 0 0 0 0 43 117 181 198 749
Solar radiation, global, Mj/m2 14 8 4 3 3 6 10 17 21 23 22 19 13