Currently: 64 °F. Clear. (Weather station: Isle Of Portland, United Kingdom). See more current weatherAnnual Weather Averages in Isle of Portland
Based on weather reports collected during 2012–2021.
All Year Climate & Weather Averages in Isle of Portland
High Temp: 67 °F
Low Temp: 41 °F
Mean Temp: 53 °F
Precipitation: 2.49"
Humidity: 83%
Dew Point: 48 °F
Wind: 30 mph
Pressure: 29.99 "Hg
Visibility: 12 mi
January Climate & Weather Averages in Isle of Portland
High Temp: 48 °F
Low Temp: 42 °F
Mean Temp: 45 °F
Precipitation: 3.39"
Humidity: 84%
Dew Point: 41 °F
Wind: 36 mph
Pressure: 29.97 "Hg
Visibility: 11 mi
February Climate & Weather Averages in Isle of Portland
High Temp: 47 °F
Low Temp: 41 °F
Mean Temp: 44 °F
Precipitation: 2.42"
Humidity: 83%
Dew Point: 39 °F
Wind: 36 mph
Pressure: 29.98 "Hg
Visibility: 10 mi
March Climate & Weather Averages in Isle of Portland
High Temp: 50 °F
Low Temp: 42 °F
Mean Temp: 46 °F
Precipitation: 2.10"
Humidity: 84%
Dew Point: 41 °F
Wind: 31 mph
Pressure: 30.01 "Hg
Visibility: 10 mi
April Climate & Weather Averages in Isle of Portland
High Temp: 53 °F
Low Temp: 44 °F
Mean Temp: 49 °F
Precipitation: 1.90"
Humidity: 82%
Dew Point: 43 °F
Wind: 27 mph
Pressure: 29.99 "Hg
Visibility: 12 mi
May Climate & Weather Averages in Isle of Portland
High Temp: 58 °F
Low Temp: 49 °F
Mean Temp: 53 °F
Precipitation: 1.98"
Humidity: 84%
Dew Point: 48 °F
Wind: 26 mph
Pressure: 30.00 "Hg
Visibility: 12 mi
June Climate & Weather Averages in Isle of Portland
High Temp: 62 °F
Low Temp: 54 °F
Mean Temp: 58 °F
Precipitation: 1.93"
Humidity: 86%
Dew Point: 54 °F
Wind: 25 mph
Pressure: 30.02 "Hg
Visibility: 12 mi
July Climate & Weather Averages in Isle of Portland
High Temp: 67 °F
Low Temp: 58 °F
Mean Temp: 62 °F
Precipitation: 1.98"
Humidity: 84%
Dew Point: 57 °F
Wind: 24 mph
Pressure: 30.02 "Hg
Visibility: 14 mi
August Climate & Weather Averages in Isle of Portland
High Temp: 67 °F
Low Temp: 59 °F
Mean Temp: 63 °F
Precipitation: 2.41"
Humidity: 84%
Dew Point: 57 °F
Wind: 26 mph
Pressure: 30.00 "Hg
Visibility: 14 mi
September Climate & Weather Averages in Isle of Portland
High Temp: 65 °F
Low Temp: 56 °F
Mean Temp: 61 °F
Precipitation: 1.74"
Humidity: 81%
Dew Point: 54 °F
Wind: 28 mph
Pressure: 30.05 "Hg
Visibility: 14 mi
October Climate & Weather Averages in Isle of Portland
High Temp: 59 °F
Low Temp: 53 °F
Mean Temp: 56 °F
Precipitation: 3.42"
Humidity: 83%
Dew Point: 51 °F
Wind: 33 mph
Pressure: 29.96 "Hg
Visibility: 13 mi
November Climate & Weather Averages in Isle of Portland
High Temp: 53 °F
Low Temp: 47 °F
Mean Temp: 50 °F
Precipitation: 3.14"
Humidity: 83%
Dew Point: 45 °F
Wind: 34 mph
Pressure: 29.92 "Hg
Visibility: 13 mi
December Climate & Weather Averages in Isle of Portland
High Temp: 51 °F
Low Temp: 45 °F
Mean Temp: 48 °F
Precipitation: 3.46"
Humidity: 85%
Dew Point: 44 °F
Wind: 37 mph
Pressure: 29.97 "Hg
Visibility: 11 mi