September 11 in Costa Rica, through the years

Typical high: 32.3°. Hottest: 35.3° (2019). Coldest night: 23.6° (1999).

YEARHIGHLOWRAIN
2025 32.8° 25.5° 11.1 mm
2024 34.3° 25.9° 7.5 mm
2023 34° 25.7° 5.1 mm
2022 33.4° 23.9° 3.9 mm
2021 29.9° 24.4° 18.5 mm
2020 33.7° 26.4° 12.2 mm
2019 35.3° 26.8° 7.8 mm
2018 32.1° 25.5° 10.1 mm
2017 32.5° 25.6° 0.6 mm
2016 33.1° 24.1° 7.8 mm
2015 29.2° 25.3° 15 mm
2014 30° 25.2° 14.1 mm
2013 32.4° 24.4° 4.8 mm
2012 31.3° 24.2° 9 mm
2011 33.1° 24.7° 9 mm
2010 33.8° 24.4° 10.6 mm
2009 34.2° 26.1° 3.1 mm
2008 34.1° 25° 10.2 mm
2007 32.4° 24.3° 4.5 mm
2006 32.5° 24.8° 4.9 mm
2005 33.4° 25.7° 1.7 mm
2004 30.1° 24.6° 19.1 mm
2003 30.8° 24° 10.3 mm
2002 31° 23.9° 3.8 mm
2001 31.5° 24.1° 10.9 mm
2000 28.8° 23.9° 14.7 mm
1999 31.1° 23.6° 6.2 mm
1998 28.8° 24.5° 2.4 mm
1997 34.8° 25.3° 7.2 mm
1996 33.6° 24.3° 14.8 mm
Source: ERA5 reanalysis (Copernicus C3S)

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