Weather

Month Average High Air Temp Average Low Air Temp Average Water Temp Average Rainfall (inches)
January 74 65 69 2.0
February 75 66 70 1.8
March 78 69 75 1.7
April 81 72 79 1.8
May 85 76 83 3.5
June 87 79 86 5.1
July 89 80 87 3.6
August 89 79 87 5.0
September 88 79 86 5.9
October 84 76 82 4.4
November 80 71 76 2.9
December 76 67 72 2.0
This data is technically for Key West, but is close enough.
The actual air temperatures may run 10 degrees above the “average”.  The overnight low temperatures in
December and January can approach 50 – 55.
Water temperatures are very stable and usually vary less than a degree or two over the course of a day.  Thermoclines are rare but occasionally present in the winter and spring.  SUMMERTIME “FEELS LIKE” TEMPERATURES WILL FREQUENTLY APPROACH THE 110º – 115º RANGE.

WHILE WETSUITS ARE GENERALLY NOT REQUIRED, THE FLORIDA SEA BASE RENTS 3mm
ONE PIECE, LONG SLEEVED, LONG LEGGED WETSUITS FOR $35 PER WEEK TO SCUBA CREWS IF YOU THINK THE WATER IS TOO COLD.  SCUBA CREWS ARE WELCOME TO BRING A WETSUIT FROM HOME IF THEY WANT.  WE DO NOT ENCOURAGE WETSUITS FOR THE SAILING CREWS BECAUSE (1) YOUR EXPOSURE TIME WHILE SNORKELING IS RATHER LIMITED (2) THERE IS NO PLACE TO STORE THE WET WETSUITS ABOARD THE VESSELS (3) IF THE WATER IS TOO COLD YOU CAN FISH AND SAIL.

For current weather conditions and forecasts click on the Weather
Underground sticker near the top left corner of the page and enter
zip code 33036 or 33050.

The link to the National Weather Service Marine Forecast for the Florida Keys is
http://forecast.weather.gov/MapClick.php?map.x=296&map.y=155&site=key&zmx=1&zmy=1


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