Port Nelson Sea Temperature

(Today) Dec 2016

27.2°C / 81°F

Current weather

(clear sky)
26°C / 78°F

Partly cloudy

14 mph



The measurements for the sea temperature in Port Nelson, Rum Cay are provided by the daily satellite readings provided by the NOAA. The temperatures given are the surface temperature (SST) which is most relevant to recreational users.

Average December sea temperatures

  • Max: 27.8°C / 82.0°F
  • Avg: 26.5°C / 79.7°F
  • Min: 25.2°C / 77.4°F
Port Nelson average sea temperature chart

These average ocean temperatures for Port Nelson are calculated from several years of archived data.


Whilst sea temperatures for Port Nelson are as accurate as current data allows there may be slight local and regional variations depending on conditions. Time of day and wind direction may have a temporary local effect as can water flows from neraby rivers.

Alternate names for Port Nelson