Port Nelson Sea Temperature

(Today) Sep 2017

29.4°C / 85°F

Current weather

(scattered clouds)
29°C / 85°F

Partly cloudy

16 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 September sea temperatures

  • Max: 30.3°C / 86.5°F
  • Avg: 29.3°C / 84.7°F
  • Min: 28.2°C / 82.7°F
Port Nelson average sea temperature chart

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

Map showing location of Port Nelson (23.633330, -74.833330)


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