Weather on September 15 at Dry Tortugas
Dry Tortugas National Park
Based on 55 years of data from Key West, FL
Planning Your Visit
September 15th in Dry Tortugas National Park (via Key West, FL) typically brings warm fall weather, with average highs around 89°F and lows near 78°F. Over 55 years of records, the warmest September 15th was in 2024 (91°F average), while the coldest was 1985 (77°F) — a 14°F range across recorded history. Rain or other precipitation has occurred on about 53% of September 15th dates historically, with the wettest September 15th recording 5.74" of rain. The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
Planning for September 15th in Dry Tortugas? 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 | 96°F | 79°F | 0" | -- |
| 2024 | 98°F | 84°F | 0" | -- |
| 2023 | 93°F | 81°F | 0" | -- |
| 2022 | 90°F | 80°F | 0.05" | -- |
| 2021 | 87°F | 75°F | 2.72" | -- |
| 2020 | 91°F | 82°F | 0" | -- |
| 2019 | 91°F | 80°F | 0" | -- |
| 2018 | 90°F | 82°F | 0" | -- |
| 2017 | 99°F | 82°F | -- | -- |
| 2016 | 89°F | 79°F | 0" | -- |
| 2015 | 90°F | 79°F | 0.71" | -- |
| 2014 | 84°F | 74°F | 0.08" | -- |
| 2013 | 80°F | 74°F | 3.45" | -- |
| 2012 | 87°F | 77°F | 0" | -- |
| 2011 | 87°F | 74°F | 2.72" | -- |
| 2010 | 88°F | 78°F | 0" | 0" |
| 2009 | 89°F | 78°F | 0.13" | 0" |
| 2008 | 87°F | 79°F | 0" | 0" |
| 2007 | 91°F | 78°F | 0" | 0" |
| 2006 | 90°F | 81°F | 0.18" | 0" |
| 2005 | 90°F | 75°F | 0" | 0" |
| 2004 | 91°F | 83°F | 0" | -- |
| 2003 | 90°F | 78°F | 0.08" | -- |
| 2002 | 89°F | 82°F | 0.08" | 0" |
| 2001 | 87°F | 77°F | 0" | 0" |
| 2000 | 87°F | 78°F | 0" | -- |
| 1999 | 93°F | 82°F | 0" | -- |
| 1998 | 83°F | 77°F | 0.61" | 0" |
| 1997 | 87°F | 75°F | 5.31" | 0" |
| 1996 | 88°F | 77°F | 0.84" | 0" |
| 1995 | 90°F | 78°F | 1.37" | 0" |
| 1994 | 85°F | 75°F | 3.51" | 0" |
| 1993 | 87°F | 78°F | 1.14" | 0" |
| 1992 | 87°F | 79°F | 0" | 0" |
| 1991 | 88°F | 74°F | 3.73" | 0" |
| 1990 | 87°F | 79°F | 0" | 0" |
| 1989 | 88°F | 80°F | 0.05" | 0" |
| 1988 | 88°F | 77°F | 0.46" | 0" |
| 1987 | 90°F | 75°F | 0.13" | 0" |
| 1986 | 89°F | 76°F | 1.07" | 0" |
| 1985 | 85°F | 70°F | 0.28" | 0" |
| 1984 | 87°F | 76°F | 2.51" | 0" |
| 1983 | 90°F | 79°F | 0" | 0" |
| 1982 | 88°F | 76°F | 0.51" | 0" |
| 1981 | 86°F | 77°F | 5.74" | 0" |
| 1980 | 88°F | 79°F | 0" | 0" |
| 1979 | 88°F | 77°F | 0.03" | 0" |
| 1978 | 86°F | 75°F | 1.27" | 0" |
| 1977 | 90°F | 81°F | 0" | 0" |
| 1976 | 88°F | 75°F | 1.19" | 0" |
| 1975 | 89°F | 77°F | 0" | 0" |
| 1974 | 89°F | 80°F | 0.3" | 0" |
| 1973 | 90°F | 81°F | 0" | 0" |
| 1972 | 89°F | 81°F | 0" | 0" |
| 1971 | 89°F | 78°F | 0" | 0" |