WEATHER IN San Juan
- Weather forecast in San Juan
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Climate tables. Data for San Juan.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | 9.0 (1973) | 19.9 | 27.3 | 35.3 | 45.4 (2003) |
| february | 8.0 (1977) | 18.6 | 25.7 | 33.6 | 45.1 (2001) |
| march | 1.0 (1976) | 16.2 | 23.1 | 30.8 | 42.1 (2002) |
| april | -1.6 (2012) | 11.0 | 17.8 | 25.5 | 39.3 (2002) |
| may | -3.8 (1988) | 6.1 | 12.9 | 20.6 | 38.3 (1997) |
| june | -7.5 (2011) | 1.6 | 9.1 | 17.4 | 37.6 (2015) |
| july | -10.0 (1973) | 0.4 | 8.2 | 17.0 | 36.6 (2015) |
| august | -7.2 (1991) | 2.9 | 11.4 | 20.5 | 38.5 (2015) |
| september | -5.0 (1974) | 6.8 | 15.3 | 24.2 | 41.8 (2013) |
| october | 0.0 (1981) | 11.5 | 19.8 | 28.2 | 42.5 (2009) |
| november | 1.0 (1979) | 15.0 | 23.5 | 31.9 | 44.5 (2009) |
| december | 5.2 (1995) | 18.0 | 26.3 | 34.5 | 46.9 (1995) |
| year | () | () |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 17 | 0.0 (1878) | 102 (1999) | 141 (1992) |
| february | 23 | 0.0 (1878) | 187 (1998) | 181 (1998) |
| march | 11 | 0.0 (1877) | 238 (1992) | 199 (1998) |
| april | 5 | 0.0 (1877) | 134 (1999) | 57 (1997) |
| may | 3 | 0.0 (1877) | 38 (1987) | 9 (1974) |
| june | 2 | 0.0 (1877) | 72 (1980) | 70 (1977) |
| july | 1 | 0.0 (1876) | 76 (1911) | 7 (1979) |
| august | 3 | 0.0 (1876) | 38 (2005) | 71 (1988) |
| september | 4 | 0.0 (1877) | 112 (2020) | 112 (2020) |
| october | 3 | 0.0 (1875) | 58 (1958) | 19 (2004) |
| november | 7 | 0.0 (1876) | 202 (1981) | 200 (1981) |
| december | 12 | 0.0 (1877) | 51 (2013) | 53 (1991) |
| 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 |