September 5 in San José, through the years

Typical high: 26.8°. Hottest: 29.4° (2025). Coldest night: 15.9° (2007).

YEARHIGHLOWRAIN
2025 29.4° 17.3° 2.9 mm
2024 29.4° 19° 28 mm
2023 25.7° 18° 54.3 mm
2022 25° 18° 2.6 mm
2021 28.9° 17.9° 4.5 mm
2020 28.2° 18° 28.4 mm
2019 29.1° 16.3° 6.3 mm
2018 27.4° 18.3° 19.8 mm
2017 27.7° 18° 7.2 mm
2016 28° 17.4° 2.4 mm
2015 27.8° 16.7° 7 mm
2014 27.7° 17.7° 10 mm
2013 25.5° 16.9° 16.7 mm
2012 27.2° 16.4° 9.4 mm
2011 24.8° 18.1° 19.5 mm
2010 22.5° 18.2° 13.8 mm
2009 28° 18.5° 5.1 mm
2008 25.1° 17.9° 9.4 mm
2007 27.8° 15.9° 8.7 mm
2006 26.7° 16.3° 13.2 mm
2005 27.7° 16.2° 14.2 mm
2004 26.3° 18.3° 26.1 mm
2003 26.8° 17.2° 6.1 mm
2002 27° 18.5° 21.4 mm
2001 24.9° 17° 11.9 mm
2000 27.2° 16.6° 19 mm
1999 25.2° 17.2° 17 mm
1998 24.1° 18.7° 21.6 mm
1997 24.9° 18.7° 11.2 mm
1996 27.4° 18.9° 11.8 mm
Source: ERA5 reanalysis (Copernicus C3S)

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