Anglesey, United Kingdom: Annual Weather Averages

July is the hottest month in Anglesey with an average temperature of 15°C (59°F) and the coldest is January at 5°C (41°F) with the most daily sunshine hours at 7 in June. The wettest month is November with an average of 161mm of rain. The best month to swim in the sea is in August when the average sea temperature is 16°C (61°F).

Average Temperature: Anglesey

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 5 5 6 8 11 13 15 15 14 11 8 6
°F 41 41 43 46 52 55 59 59 57 52 46 43

Average High/Low Temperature: Anglesey

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High °C 7 7 8 11 13 15 17 17 16 13 10 8
High °F 45 45 46 52 55 59 63 63 61 55 50 46
Low °C 3 3 4 5 8 10 12 12 11 8 6 4
Low °F 37 37 39 41 46 50 54 54 52 46 43 39

Average Rainfall: Anglesey

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 139 93 109 79 79 82 83 109 121 148 161 157
Days 20 16 18 15 14 14 14 15 16 19 20 20

Average Daily Sunshine Hours: Anglesey

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  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hours 2 3 4 4 7 7 6 6 5 4 2 2

Average Sea Temperature: Anglesey

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