Marine Weather Net

Saint Helena Island, SC Weather Forecast


Marine Forecast: Edisto Beach to Savannah


Saint Helena Island, South Carolina

 Lat: 32.39N, Lon: 80.72W

Current Conditions Updated: 656 PM EST SAT DEC 27 2025

Overcast
Temp: 66°F
  • Humidity:
  • 81%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.02 in.
  • Dewpoint:
  • 60°F
  • Heat index:
  • 66°F

  • Sunrise:
  • 7:21 AM EST
  • Sunset:
  • 5:23 PM EST
  • Moonrise:
  • 12:03 PM EST
  • Moonset:
  • 12:07 AM EST

TONIGHT

PARTLY CLOUDY
Lo: 59°F

SUNDAY

PARTLY SUNNY
Hi: 69°F
Lo: 59°F

MONDAY

PARTLY SUNNY
Hi: 70°F
Lo: 35°F
Precip: 20%

TUESDAY

MOSTLY SUNNY
Hi: 51°F
Lo: 31°F
Weather Forecast In Detail:
Forecast Issued: 617 PM EST Sat Dec 27 2025

Tonight...Partly cloudy this evening, then becoming mostly cloudy. Lows in the upper 50s. Southwest winds around 5 mph, becoming southeast after midnight.
Sunday...Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 60s. Southeast winds around 5 mph.
Sunday Night...Mostly cloudy. Lows in the upper 50s. Southwest winds 5 to 10 mph.
Monday...Partly sunny. A slight chance of rain in the afternoon. Highs around 70. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
Monday Night...Partly cloudy in the evening, then clearing. Much cooler with lows in the mid 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph.
Tuesday...Mostly sunny. Cooler with highs in the lower 50s.
Tuesday Night...Mostly clear. Lows in the lower 30s.
Wednesday...Sunny. Highs in the lower 50s.
Wednesday Night...Mostly clear. Lows in the upper 30s.
New Years Day...Sunny. Highs in the mid 50s.
Thursday Night...Partly cloudy. Lows in the upper 30s.
Friday...Mostly sunny. Highs in the mid 50s.
Friday Night...Partly cloudy. Lows in the upper 30s.
Saturday...Partly sunny with a 20 percent chance of rain. Highs in the upper 50s.
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