National Data Buoy Center (w/map): Buoy data from 1987; although it is not the buoy closest to Everglades National Park, it is in the vicinity and has the earliest record:
There are multiple buoys located in the Everglades National Park. The closest buoy with recent data is:
National Oceanographic Data Center – contains SST, Salinity, Sea Level, etc. (under parameters):
Sea Level
Map showing locations of stations recording relative sea level. Clicking on a point will produce a time series graph showing changes in sea level over a period. The oldest station in Florida is the Key West station (1913–Present). This link goes to the Fast Delivery section, but the oldest data are under the Research Quality section:
University of Hawaii Relative Sea Level Data for Everglades (Key West) (from 1994–Present):
Map showing locations of stations recording a number of meteorological variables:
Sea Level Trends (includes Naples, relatively close to the Everglades):
Sea Temperature
Gulf of Mexico climatology (from World Ocean Atlas; includes Florida), available in figures (more useful) or raw data:
World Ocean Database involves searching a database using specific parameters (country, coordinates, variables, etc), then downloading the data:
Oceanographic Data
http://www.ndbc.noaa.gov/
http://www.ndbc.noaa.gov/station_history.php?station=mlrf1
http://www.ndbc.noaa.gov/station_history.php?station=nfbf1
http://www.nodc.noaa.gov/
http://uhslc.soest.hawaii.edu/data/fdd
http://ilikai.soest.hawaii.edu/uhslc/htmld/d0242A.html
*Available in daily, monthly, and hourly form
http://tidesandcurrents.noaa.gov/gmap3/
Data can be found by clicking on station of interest and selecting either preliminary or verified data Raw data for closest station to Everglades:
http://opendap.co-ops.nos.noaa.gov/stations/stationData.jsp?id=8725110
http://tidesandcurrents.noaa.gov/sltrends/sltrends.html
http://www.nodc.noaa.gov/OC5/GOMclimatology/
http://www.nodc.noaa.gov/OC5/SELECT/dbsearch/dbsearch.html