September 3 in San José, through the years

Typical high: 26.5°. Hottest: 28.5° (2025). Coldest night: 15.5° (2019).

YEARHIGHLOWRAIN
2025 28.5° 18.2° 2.5 mm
2024 27.5° 17.6° 19.8 mm
2023 28° 19.6° 1 mm
2022 27.6° 17.9° 6.2 mm
2021 25.6° 18.3° 8.5 mm
2020 24° 17.1° 6.2 mm
2019 28.2° 15.5° 10.2 mm
2018 26.7° 17° 15.7 mm
2017 27.5° 18.2° 8 mm
2016 26.3° 18.1° 2.9 mm
2015 26.8° 16.9° 20.5 mm
2014 27.8° 16.2° 0.7 mm
2013 25.7° 15.7° 16.5 mm
2012 27.1° 17.4° 0.8 mm
2011 25.5° 17.5° 2.9 mm
2010 22.8° 18.2° 6.7 mm
2009 26.4° 18.9° 0.1 mm
2008 25° 18.1° 15.4 mm
2007 26.5° 17.6° 18.1 mm
2006 26.2° 16.4° 1.1 mm
2005 27.2° 17° 0.4 mm
2004 27.2° 18.9° 11.6 mm
2003 27.6° 16.8° 3 mm
2002 26.8° 16.6° 6.5 mm
2001 27.1° 16.6° 0.2 mm
2000 26.6° 18.2° 10.8 mm
1999 24.9° 16.3° 12.2 mm
1998 24.6° 18.5° 6.6 mm
1997 28.3° 18.2° 0 mm
1996 25.9° 17.4° 6.3 mm
Source: ERA5 reanalysis (Copernicus C3S)

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