Average Ocean Water Temperatures at Naples

The table below lists typical water temperatures for each month of the year in the ocean off Naples in Florida. The water reaches its warmest point of the year in July and August when the temperature averages 87 degrees Fahrenheit (31 degrees Celsius).

The coolest time is January and February, when the temperature usually drops to around 66 °F (19 °C).

The water at Naples remains a comfortable swimming temperature, typically above 70 °F (21 °C), from March to November.

Average seawater temperature at Naples, Florida
Period °F °C
January 66 19
February 66 19
March 71 22
April 77 25
May 82 28
June 86 30
July 87 31
August 87 31
September 86 30
October 81 27
November 73 23
December 68 20
Annual Average 78 26
Reference

National Oceanographic Data Center. NODC Coastal Water Temperature Guide (CWTG).

Florida Ocean Temperatures
Back to Top