WEATHER IN Belfast
Climate tables. Data for Belfast.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -10.0 (1979) | 2.6 | 4.8 | 7.3 | 14.0 (1998) |
| february | -7.0 (1978) | 2.6 | 5.1 | 8.0 | 16.3 (2009) |
| march | -7.0 (1986) | 3.6 | 6.5 | 10.0 | 19.8 (2012) |
| april | -5.0 (1973) | 5.2 | 8.5 | 12.6 | 21.4 (1987) |
| may | -2.0 (1981) | 7.5 | 11.2 | 15.6 | 25.0 (2012) |
| june | 2.0 (1991) | 10.4 | 13.8 | 18.1 | 29.5 (2018) |
| july | 3.9 (2006) | 12.2 | 15.4 | 19.6 | 28.6 (1989) |
| august | 3.0 (1986) | 12.2 | 15.2 | 19.2 | 28.0 (1995) |
| september | 0.8 (2007) | 10.4 | 13.3 | 17.0 | 24.0 (1991) |
| october | -3.0 (1993) | 7.7 | 10.3 | 13.3 | 20.1 (1985) |
| november | -8.6 (2010) | 4.8 | 7.2 | 9.7 | 16.1 (2005) |
| december | -14.9 (2010) | 2.7 | 5.1 | 7.5 | 15.0 (2016) |
| year | () | () |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 75 | 22 (1997) | 151 (2008) | 71 (1990) |
| february | 60 | 3 (1932) | 121 (1966) | 25 (1990) |
| march | 58 | 9 (1953) | 122 (1940) | 39 (1982) |
| april | 55 | 2 (1974) | 117 (1986) | 31 (2002) |
| may | 55 | 7 (1991) | 131 (1993) | 25 (1993) |
| june | 64 | 11 (1941) | 155 (2012) | 37 (2012) |
| july | 77 | 14 (2000) | 155 (1950) | 29 (2010) |
| august | 81 | 7 (1995) | 288 (1981) | 259 (1981) |
| september | 67 | 4 (2014) | 159 (1999) | 37 (2006) |
| october | 83 | 19 (1946) | 171 (1976) | 45 (1976) |
| november | 83 | 15 (1942) | 158 (2002) | 41 (1979) |
| december | 79 | 14 (1971) | 173 (1978) | 102 (1992) |
| 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 |