Annual Weather Averages Near St. Peter Port
Averages are for Guernsey Airport, which is 3 miles from St. Peter Port.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in St. Peter Port
High Temp: 67 °F
Low Temp: 41 °F
Mean Temp: 53 °F
Precipitation: 2.71"
Humidity: 84%
Dew Point: 48 °F
Wind: 24 mph
Pressure: 30.03 "Hg
Visibility: 10 mi
January Climate & Weather Averages in St. Peter Port
High Temp: 49 °F
Low Temp: 42 °F
Mean Temp: 45 °F
Precipitation: 3.55"
Humidity: 84%
Dew Point: 41 °F
Wind: 28 mph
Pressure: 30.05 "Hg
Visibility: 9 mi
February Climate & Weather Averages in St. Peter Port
High Temp: 48 °F
Low Temp: 41 °F
Mean Temp: 45 °F
Precipitation: 2.94"
Humidity: 84%
Dew Point: 40 °F
Wind: 26 mph
Pressure: 30.06 "Hg
Visibility: 9 mi
March Climate & Weather Averages in St. Peter Port
High Temp: 50 °F
Low Temp: 43 °F
Mean Temp: 47 °F
Precipitation: 2.36"
Humidity: 84%
Dew Point: 42 °F
Wind: 24 mph
Pressure: 30.05 "Hg
Visibility: 9 mi
April Climate & Weather Averages in St. Peter Port
High Temp: 54 °F
Low Temp: 45 °F
Mean Temp: 49 °F
Precipitation: 1.96"
Humidity: 82%
Dew Point: 44 °F
Wind: 22 mph
Pressure: 29.99 "Hg
Visibility: 10 mi
May Climate & Weather Averages in St. Peter Port
High Temp: 59 °F
Low Temp: 49 °F
Mean Temp: 54 °F
Precipitation: 1.97"
Humidity: 83%
Dew Point: 48 °F
Wind: 22 mph
Pressure: 30.02 "Hg
Visibility: 10 mi
June Climate & Weather Averages in St. Peter Port
High Temp: 64 °F
Low Temp: 53 °F
Mean Temp: 58 °F
Precipitation: 1.74"
Humidity: 84%
Dew Point: 53 °F
Wind: 20 mph
Pressure: 30.06 "Hg
Visibility: 10 mi
July Climate & Weather Averages in St. Peter Port
High Temp: 67 °F
Low Temp: 57 °F
Mean Temp: 62 °F
Precipitation: 1.71"
Humidity: 84%
Dew Point: 57 °F
Wind: 20 mph
Pressure: 30.04 "Hg
Visibility: 11 mi
August Climate & Weather Averages in St. Peter Port
High Temp: 67 °F
Low Temp: 58 °F
Mean Temp: 62 °F
Precipitation: 2.19"
Humidity: 85%
Dew Point: 57 °F
Wind: 19 mph
Pressure: 30.03 "Hg
Visibility: 11 mi
September Climate & Weather Averages in St. Peter Port
High Temp: 64 °F
Low Temp: 56 °F
Mean Temp: 60 °F
Precipitation: 2.01"
Humidity: 83%
Dew Point: 55 °F
Wind: 21 mph
Pressure: 30.05 "Hg
Visibility: 12 mi
October Climate & Weather Averages in St. Peter Port
High Temp: 60 °F
Low Temp: 52 °F
Mean Temp: 56 °F
Precipitation: 3.68"
Humidity: 83%
Dew Point: 51 °F
Wind: 25 mph
Pressure: 29.98 "Hg
Visibility: 11 mi
November Climate & Weather Averages in St. Peter Port
High Temp: 54 °F
Low Temp: 47 °F
Mean Temp: 51 °F
Precipitation: 3.87"
Humidity: 83%
Dew Point: 46 °F
Wind: 26 mph
Pressure: 29.97 "Hg
Visibility: 11 mi
December Climate & Weather Averages in St. Peter Port
High Temp: 50 °F
Low Temp: 44 °F
Mean Temp: 47 °F
Precipitation: 4.51"
Humidity: 84%
Dew Point: 42 °F
Wind: 29 mph
Pressure: 30.02 "Hg
Visibility: 10 mi