Weather on September 30 at Biscayne
Biscayne National Park
Based on 55 years of data from Miami, FL
Planning Your Visit
September 30th in Biscayne National Park (via Miami, FL) typically brings warm fall weather, with average highs around 86°F and lows near 76°F. Over 55 years of records, the warmest September 30th was in 1980 (87°F average), while the coldest was 2010 (75°F) — a 12°F range across recorded history. Rain or other precipitation has occurred on about 55% of September 30th dates historically, with the wettest September 30th recording 11.43" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 30th 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 | 89°F | 76°F | 0" | -- |
| 2024 | 92°F | 78°F | 0.15" | -- |
| 2023 | 93°F | 77°F | 0.13" | -- |
| 2022 | 86°F | 68°F | 0" | -- |
| 2021 | 89°F | 72°F | 0" | -- |
| 2020 | 86°F | 78°F | 0" | -- |
| 2019 | 84°F | 80°F | 0" | -- |
| 2018 | 88°F | 78°F | 0.25" | -- |
| 2017 | 89°F | 77°F | 0" | -- |
| 2016 | 87°F | 76°F | 0" | -- |
| 2015 | 86°F | 76°F | 2.29" | -- |
| 2014 | 87°F | 76°F | 0.89" | -- |
| 2013 | 85°F | 75°F | 0.66" | -- |
| 2012 | 87°F | 79°F | 0" | -- |
| 2011 | 88°F | 79°F | 0" | -- |
| 2010 | 77°F | 74°F | 11.43" | 0" |
| 2009 | 90°F | 79°F | 0" | 0" |
| 2008 | 86°F | 73°F | 0.99" | -- |
| 2007 | 83°F | 75°F | 1.32" | -- |
| 2006 | 84°F | 73°F | 2.39" | 0" |
| 2005 | 86°F | 78°F | 1.91" | 0" |
| 2004 | 85°F | 74°F | 0.18" | 0" |
| 2003 | 87°F | 73°F | 1.57" | 0" |
| 2002 | 89°F | 76°F | 1.09" | 0" |
| 2001 | 85°F | 70°F | 0.03" | 0" |
| 2000 | 86°F | 75°F | 6.35" | 0" |
| 1999 | 87°F | 80°F | 0" | 0" |
| 1998 | 88°F | 78°F | 0" | 0" |
| 1997 | 87°F | 77°F | 0.2" | 0" |
| 1996 | 87°F | 79°F | 0" | 0" |
| 1995 | 90°F | 80°F | 0" | 0" |
| 1994 | 81°F | 73°F | 0.76" | 0" |
| 1993 | 84°F | 75°F | 0" | 0" |
| 1992 | 85°F | 76°F | 0" | 0" |
| 1991 | 83°F | 74°F | 0.81" | 0" |
| 1990 | 87°F | 76°F | 0" | 0" |
| 1989 | 86°F | 79°F | 0" | 0" |
| 1988 | 85°F | 80°F | 0" | 0" |
| 1987 | 88°F | 76°F | 0.76" | 0" |
| 1986 | 87°F | 80°F | 0" | 0" |
| 1985 | 84°F | 78°F | 0.23" | 0" |
| 1984 | 78°F | 74°F | 0.89" | 0" |
| 1983 | 83°F | 74°F | 0.48" | 0" |
| 1982 | 83°F | 76°F | 1.55" | 0" |
| 1981 | 82°F | 79°F | 0.03" | 0" |
| 1980 | 95°F | 78°F | 0" | 0" |
| 1979 | 82°F | 72°F | 4.29" | 0" |
| 1978 | 85°F | 81°F | 0" | 0" |
| 1977 | 84°F | 74°F | 0" | 0" |
| 1976 | 88°F | 77°F | 1.93" | 0" |
| 1975 | 87°F | 78°F | 0.25" | 0" |
| 1974 | 87°F | 75°F | 1.32" | 0" |
| 1973 | 85°F | 78°F | 0" | 0" |
| 1972 | 87°F | 74°F | 0" | 0" |
| 1971 | 87°F | 73°F | 0.25" | 0" |