Since the 1880’s the sea level has been rising in many places around the world by about an inch a decade. Florida is not different.
The picture on the left is of Fort Lauderdale in 1960, for the movie Where the Boys Are. The picture on the right is 2019.
The sea level has not changed all that much in the last 60 years.
Below are graphs from National Oceanic and Atmosphere Administration NOAA.
They contain actual sea level measurements from each location:
Virginia Key Change of 0.96 feet in 100 years. Data from 1931 to 2019
St. Petersburg Change of 0.94 feet in 100 years. Data from 1947 to 2019
Key West Change of 0.81 feet in 100 years. Data from 1913 to 2019
Pensacola Change of 0.81 feet in 100 years. Data from 1923 to 2019
Fernandina Beach Change of 0.71 feet in 100 years. Data from 1897 to 2019
Mayport Change of 0.89 feet in 100 years. Data from 1928 to 2019
Cedar Key Change of 0.72 feet in 100 years. Data from 1914 to 2019
Florida average Change of 0.83 feet in 100 years.
These locations were chosen because they have the best long-term records. There are several other locations with partial data that were excluded.
Virginia Beach – Monthly mean sea level data from 1931 to 2019 which is equivalent to a change of 0.96 feet in 100 years.
The relative sea level trend is 2.92 millimeters (0.115 inches)/year with a 95% confidence interval of +/- 0.22 mm (0.009 inches)/year based on monthly mean sea level data from 1931 to 2019 which is 0.96 feet over 100 years.
St. Petersburg – Monthly mean sea level data from 1947 to 2019 which is equivalent to a change of 0.94 feet in 100 years.
Key West – Monthly mean sea level data from 1913 to 2019 which is equivalent to a change of 0.81 feet in 100 years.
The relative sea level trend is 2.47 millimeters (0.097 inches)/year with a 95% confidence interval of +/- 0.15 mm (0.006)/year based on monthly mean sea level data from 1913 to 2019 which is equivalent to a change of 0.81 feet in 100 years.
Pensacola – monthly mean sea level data from 1923 to 2019 which is equivalent to a change of 0.81 feet in 100 years.
The relative sea level trend is 2.46 millimeters (0.0969 inches)/year with a 95% confidence interval of +/- 0.23 mm (0.009)/year based on monthly mean sea level data from 1923 to 2019 which is equivalent to a change of 0.81 feet inches in a 100 years.
Fernandina Beach – Mean sea level data from 1897 to 2019 which is equivalent to a change of 0.71 feet in 100 years.
Mayport – Monthly mean sea level data from 1928 to 2019 which is equivalent to a change of 0.89 feet in 100 years.
The relative sea level trend is 2.72 millimeters (0.107 inches)/year with a 95% confidence interval of +/- 0.26 mm (0.01 inches)/year based on monthly mean sea level data from 1928 to 2019 which is equivalent to a change of 0.89 feet in 100 years.
Cedar Key – Monthly mean sea level data from 1914 to 2019 which is equivalent to a change of 0.72 feet in 100 years.
The relative sea level trend is 2.19 millimeters (0.86 inches)/year with a 95% confidence interval of +/- 0.18 mm (0.007 inches)/year based on monthly mean sea level data from 1914 to 2019 which is equivalent to a change of 0.72 feet in 100 years.
