September 4 in San Juan, through the years

Typical high: 22°. Hottest: 25.8° (2021). Coldest night: 9.3° (2018).

YEARHIGHLOWRAIN
2025 22.1° 13.5° 4 mm
2024 24.1° 12° 0 mm
2023 21.8° 14.3° 3 mm
2022 18.2° 13.7° 3.6 mm
2021 25.8° 16.9° 1.5 mm
2020 22.8° 15.5° 0.8 mm
2019 18.5° 14.9° 4 mm
2018 23.3° 9.3° 0 mm
2017 25.3° 11.6° 0.2 mm
2016 14.2° 10.6° 5.9 mm
2015 21.7° 12° 2.8 mm
2014 22.3° 13.7° 0.8 mm
2013 20.1° 12.8° 7.8 mm
2012 24.8° 10.3° 0 mm
2011 23.6° 9.3° 0 mm
2010 21.2° 15.5° 21.5 mm
2009 21.5° 13.9° 3.2 mm
2008 21.5° 12.3° 10.6 mm
2007 23.4° 12.7° 2.2 mm
2006 15.6° 11.4° 2.9 mm
2005 24.3° 10.1° 0 mm
2004 24.7° 10.7° 0.9 mm
2003 24.1° 10° 0 mm
2002 22.2° 13° 4.3 mm
2001 20.1° 13.7° 2.5 mm
2000 19° 9.6° 0.1 mm
1999 23.6° 10.9° 0.4 mm
1998 22.1° 16.3° 3 mm
1997 24° 15.2° 1.2 mm
1996 23.8° 14.2° 16.9 mm
Source: ERA5 reanalysis (Copernicus C3S)

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