September weather forecast and climate
Southport, NC

Average sea temperature in September - Southport, NC
  • Average sea temperature in September: 80.3°F

The best month for swimming (with the highest average sea temperature) is August (82.7°F).
The coldest month (with the lowest average sea temperature) is March (56°F).

Average daylight in September - Southport, NC
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

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