Holiday Weather

Jersey: Annual Weather Averages

July is the hottest month in Jersey with an average temperature of 62°F (17°C) and the coldest is January at 42°F (6°C) with the most daily sunshine hours at 6 in August. The wettest month is January with an average of 10mm of rain. The best month to swim in the sea is in August when the average sea temperature is 63°F (17°C).

Average Temperature: Jersey

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6 6 8 9 12 14 17 17 16 13 9 7
°F 42 42 46 47 53 57 62 62 60 55 48 45

Average High/Low Temperature: Jersey

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High °C 7 7 9 11 14 16 19 19 18 14 10 8
High °F 45 45 48 52 57 61 66 66 64 57 50 46
Low °C 4 4 6 6 9 12 14 14 13 11 8 6
Low °F 39 39 43 43 48 54 57 57 55 52 46 43

Average Rainfall: Jersey

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 10 10 10 10 10 10 10 10 10 10 10 10
Days 22 20 21 19 16 16 17 16 17 22 23 23

Average Daily Sunshine Hours: Jersey

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hours 1 2 3 2 4 4 5 6 3 2 1 0

Average Sea Temperature: Jersey

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 10 9 9 10 12 14 16 17 16 15 13 11
°F 50 48 48 50 54 57 61 63 61 59 55 52

Average Humidity: Jersey

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
% 90 85 85 85 80 85 85 85 80 85 85 85

Average Snow/Fog Days: Jersey

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
4 5 4 4 4 5 6 6 5 3 3 3
4 5 4 4 4 5 6 6 5 3 3 3

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