September 10 in Costa Rica, through the years

Typical high: 30.7°. Hottest: 33.6° (2019). Coldest night: 22.6° (1999).

YEARHIGHLOWRAIN
2025 33.3° 25.4° 1 mm
2024 32.1° 25.1° 6.2 mm
2023 29.1° 23.5° 104.8 mm
2022 32.5° 25.5° 7.3 mm
2021 32.4° 25.1° 13.6 mm
2020 31.2° 24.2° 6.9 mm
2019 33.6° 26.9° 3.1 mm
2018 30.3° 25.3° 4.4 mm
2017 29.4° 24.4° 19.1 mm
2016 30° 24.5° 17.1 mm
2015 30.8° 24.4° 25 mm
2014 31° 24.9° 14.8 mm
2013 30.7° 24.2° 15 mm
2012 32.3° 24.7° 13.3 mm
2011 31.1° 24.9° 20.9 mm
2010 31.3° 25° 8.2 mm
2009 30.4° 25° 8 mm
2008 31.4° 24.6° 7.8 mm
2007 30.6° 23.9° 11.8 mm
2006 31.1° 24.6° 5.8 mm
2005 32.2° 24.8° 3.3 mm
2004 30.7° 24.5° 10.7 mm
2003 29° 23.2° 8.4 mm
2002 30.3° 23.5° 13.6 mm
2001 30.4° 23.1° 17.4 mm
2000 27.8° 22.7° 30.3 mm
1999 27.7° 22.6° 8.9 mm
1998 28.9° 23.2° 9.7 mm
1997 32.2° 25.1° 4.9 mm
1996 28.4° 23.7° 9.7 mm
Source: ERA5 reanalysis (Copernicus C3S)

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