Weather on May 20 at Biscayne
Biscayne National Park
Based on 55 years of data from Miami, FL
Planning Your Visit
May 20th in Biscayne National Park (via Miami, FL) typically brings warm spring weather, with average highs around 84°F and lows near 74°F. Over 55 years of records, the warmest May 20th was in 1995 (84°F average), while the coldest was 1973 (74°F) — a 10°F range across recorded history. Rain or other precipitation has occurred on about 31% of May 20th dates historically, with the wettest May 20th recording 5.72" of rain. The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
Planning for May 20th in Biscayne? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 90°F | 78°F | 0" | -- |
| 2024 | 93°F | 76°F | 0" | -- |
| 2023 | 88°F | 76°F | 0.56" | -- |
| 2022 | 84°F | 75°F | 1.35" | -- |
| 2021 | 87°F | 70°F | 0" | -- |
| 2020 | 88°F | 76°F | 1.78" | -- |
| 2019 | 82°F | -- | 0" | -- |
| 2018 | 85°F | 78°F | 5.72" | -- |
| 2017 | 84°F | 79°F | 0" | -- |
| 2016 | 84°F | 73°F | 0" | -- |
| 2015 | 83°F | 76°F | 0" | -- |
| 2014 | 81°F | 75°F | 0" | -- |
| 2013 | 85°F | 79°F | 0" | -- |
| 2012 | 80°F | 72°F | 0.25" | -- |
| 2011 | 84°F | 73°F | 0" | -- |
| 2010 | 82°F | 73°F | 0.3" | 0" |
| 2009 | 80°F | 72°F | 1.4" | 0" |
| 2008 | 91°F | 76°F | 4.29" | -- |
| 2007 | 81°F | 72°F | 0.79" | 0" |
| 2006 | 82°F | 71°F | 0" | 0" |
| 2005 | 85°F | 77°F | 0.38" | 0" |
| 2004 | 80°F | 74°F | 0" | 0" |
| 2003 | 88°F | 77°F | 0" | 0" |
| 2002 | 90°F | 68°F | 3.86" | 0" |
| 2001 | 84°F | 76°F | 0" | 0" |
| 2000 | 82°F | 76°F | 0" | 0" |
| 1999 | 86°F | 76°F | 0" | 0" |
| 1998 | 84°F | 73°F | 0" | 0" |
| 1997 | 88°F | 79°F | 0" | 0" |
| 1996 | 83°F | 77°F | 0" | 0" |
| 1995 | 93°F | 75°F | 0.23" | 0" |
| 1994 | 86°F | 71°F | 0" | -- |
| 1993 | 89°F | 76°F | 0" | 0" |
| 1992 | 80°F | 74°F | 0" | 0" |
| 1991 | 81°F | 74°F | 0.18" | 0" |
| 1990 | 84°F | 77°F | 0" | 0" |
| 1989 | 83°F | 75°F | 0" | 0" |
| 1988 | 83°F | 75°F | 0" | 0" |
| 1987 | 82°F | 77°F | 0.38" | 0" |
| 1986 | 82°F | 77°F | 0" | 0" |
| 1985 | 92°F | 73°F | 0" | 0" |
| 1984 | 81°F | 75°F | 0" | 0" |
| 1983 | 81°F | 76°F | 0" | 0" |
| 1982 | 81°F | 72°F | 0" | 0" |
| 1981 | 85°F | 70°F | 0" | 0" |
| 1980 | 85°F | 81°F | 0.05" | 0" |
| 1979 | 79°F | 70°F | 0" | 0" |
| 1978 | 80°F | 73°F | 0.08" | 0" |
| 1977 | 78°F | 74°F | 0" | 0" |
| 1976 | 82°F | 76°F | 0" | 0" |
| 1975 | 87°F | 73°F | 0" | 0" |
| 1974 | 81°F | 75°F | 0" | 0" |
| 1973 | 83°F | 65°F | 0" | 0" |
| 1972 | 83°F | 68°F | 0.13" | 0" |
| 1971 | 83°F | 70°F | 0" | 0" |