Annual Weather Averages Near Cardiff
Averages are for Wales Airport, which is 9 miles from Cardiff.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Cardiff
High Temp: 68 °F
Low Temp: 38 °F
Mean Temp: 51 °F
Precipitation: 2.25"
Humidity: 83%
Dew Point: 46 °F
Wind: 20 mph
Pressure: 29.98 "Hg
Visibility: 6 mi
January Climate & Weather Averages in Cardiff
High Temp: 46 °F
Low Temp: 38 °F
Mean Temp: 42 °F
Precipitation: 2.41"
Humidity: 88%
Dew Point: 39 °F
Wind: 22 mph
Pressure: 29.99 "Hg
Visibility: 6 mi
February Climate & Weather Averages in Cardiff
High Temp: 47 °F
Low Temp: 38 °F
Mean Temp: 42 °F
Precipitation: 2.19"
Humidity: 86%
Dew Point: 38 °F
Wind: 21 mph
Pressure: 30.01 "Hg
Visibility: 6 mi
March Climate & Weather Averages in Cardiff
High Temp: 50 °F
Low Temp: 39 °F
Mean Temp: 45 °F
Precipitation: 1.72"
Humidity: 83%
Dew Point: 40 °F
Wind: 21 mph
Pressure: 30.02 "Hg
Visibility: 6 mi
April Climate & Weather Averages in Cardiff
High Temp: 54 °F
Low Temp: 42 °F
Mean Temp: 48 °F
Precipitation: 1.67"
Humidity: 80%
Dew Point: 42 °F
Wind: 19 mph
Pressure: 29.97 "Hg
Visibility: 6 mi
May Climate & Weather Averages in Cardiff
High Temp: 60 °F
Low Temp: 47 °F
Mean Temp: 53 °F
Precipitation: 1.80"
Humidity: 79%
Dew Point: 47 °F
Wind: 19 mph
Pressure: 29.99 "Hg
Visibility: 7 mi
June Climate & Weather Averages in Cardiff
High Temp: 65 °F
Low Temp: 52 °F
Mean Temp: 58 °F
Precipitation: 1.73"
Humidity: 80%
Dew Point: 52 °F
Wind: 18 mph
Pressure: 30.03 "Hg
Visibility: 7 mi
July Climate & Weather Averages in Cardiff
High Temp: 68 °F
Low Temp: 56 °F
Mean Temp: 62 °F
Precipitation: 1.93"
Humidity: 80%
Dew Point: 55 °F
Wind: 18 mph
Pressure: 30.00 "Hg
Visibility: 7 mi
August Climate & Weather Averages in Cardiff
High Temp: 67 °F
Low Temp: 55 °F
Mean Temp: 61 °F
Precipitation: 2.44"
Humidity: 81%
Dew Point: 55 °F
Wind: 18 mph
Pressure: 29.99 "Hg
Visibility: 7 mi
September Climate & Weather Averages in Cardiff
High Temp: 64 °F
Low Temp: 52 °F
Mean Temp: 58 °F
Precipitation: 1.96"
Humidity: 82%
Dew Point: 52 °F
Wind: 18 mph
Pressure: 30.02 "Hg
Visibility: 7 mi
October Climate & Weather Averages in Cardiff
High Temp: 58 °F
Low Temp: 48 °F
Mean Temp: 53 °F
Precipitation: 3.05"
Humidity: 85%
Dew Point: 48 °F
Wind: 20 mph
Pressure: 29.93 "Hg
Visibility: 7 mi
November Climate & Weather Averages in Cardiff
High Temp: 52 °F
Low Temp: 43 °F
Mean Temp: 47 °F
Precipitation: 2.99"
Humidity: 87%
Dew Point: 44 °F
Wind: 20 mph
Pressure: 29.91 "Hg
Visibility: 6 mi
December Climate & Weather Averages in Cardiff
High Temp: 47 °F
Low Temp: 39 °F
Mean Temp: 43 °F
Precipitation: 3.09"
Humidity: 88%
Dew Point: 40 °F
Wind: 22 mph
Pressure: 29.95 "Hg
Visibility: 6 mi