WEATHER IN Cardiff
Climate tables. Data for Cardiff.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -13.0 (1979) | 3.7 | 6.0 | 8.2 | 14.2 (2016) |
| february | -9.0 (1991) | 3.4 | 5.8 | 8.5 | 18.0 (1995) |
| march | -7.2 (1986) | 4.2 | 7.1 | 10.4 | 20.0 (1977) |
| april | -4.0 (1973) | 5.6 | 9.0 | 13.0 | 24.8 (2003) |
| may | -2.0 (1979) | 8.6 | 12.0 | 15.9 | 27.5 (1989) |
| june | 0.0 (1999) | 11.6 | 14.8 | 18.6 | 33.0 (1976) |
| july | 0.0 (1998) | 13.7 | 16.7 | 20.4 | 32.2 (1983) |
| august | 4.0 (1980) | 13.4 | 16.3 | 19.8 | 32.4 (1990) |
| september | 0.1 (2003) | 11.0 | 14.1 | 17.6 | 27.0 (1973) |
| october | -5.0 (1993) | 9.0 | 11.5 | 14.4 | 26.3 (2011) |
| november | -8.4 (2010) | 6.1 | 8.5 | 11.0 | 18.0 (2005) |
| december | -8.8 (2010) | 3.9 | 6.3 | 8.6 | 16.0 (1979) |
| year | () | () |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 121.6 | 4.8 (1987) | 164.0 (2014) | 31.0 (1984) |
| february | 85.2 | 1.8 (1986) | 126.4 (1982) | 82.0 (1982) |
| march | 89.8 | 5.5 (1990) | 98.4 (2018) | 29.0 (1985) |
| april | 68.6 | 2.8 (1976) | 127.0 (2012) | 28.0 (2012) |
| may | 72.3 | 0.3 (1989) | 124.0 (2007) | 33.0 (1974) |
| june | 66.6 | 0.2 (1976) | 143.0 (2012) | 43.0 (2011) |
| july | 78.4 | 6.4 (1981) | 189.0 (2009) | 48.0 (2008) |
| august | 93.4 | 10.7 (1987) | 157.2 (2014) | 45.4 (2016) |
| september | 94.0 | 9.9 (1988) | 123.2 (1976) | 31.0 (2012) |
| october | 133.5 | 6.4 (1978) | 163.6 (2006) | 44.0 (2013) |
| november | 123.4 | 12.6 (1980) | 187.0 (2009) | 34.0 (2016) |
| december | 125.3 | 7.9 (1988) | 196.0 (2012) | 48.0 (2012) |
| year | () | () | () |
Number of days with solid, liquid, and mixed precipitation
| Type of precipitation | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Wind speed, m/s
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different wind directions, %
| direction | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Air humidity, %
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Snow cover
| Month | jul | aug | sep | oct | nov | dec | jan | feb | mar | apr | may | jun | Year |
| number of days | |||||||||||||
| height (sm) | |||||||||||||
| max height (sm) |
Cloudy, score
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| total | |||||||||||||
| low |
Number of clear, cloudy and cloudy days
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| Total cloud | |||||||||||||
| Low cloud | |||||||||||||
Number of days with different phenomena
| phenomenon | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different types of clouds, %
| type of clouds | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |