Intracoastal Waterway - Coquina Harbor Weather Forecast

    • 75
    • 87

    Slight Chance Thunderstorms

    • 74
    • 89

    Chance Thunderstorms

    • 69
    • 92

    Mostly Sunny

    • 65
    • 85

    Mostly Sunny

    • 67
    • 86

    Mostly Sunny

    • 69
    • 86

    Mostly Sunny

    • 71
    • 87

    Partly Sunny

Today 12 Sep Coastal Horry

Mostly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the mid 80s. South Winds 10 to 15 Mph. Chance of rain 30 percent.

Tonight 12 Sep Coastal Horry

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Intracoastal Waterway - Coquina Harbor Temperature Statistics

September Temperature

North Myrtle Beach Grand Strand Airport (5.6 miles)

  • Lowest 9 September, 2026

    68 °F

  • Average September

    80.4 °F

  • Highest 5 September, 2026

    92.6 °F

Climate (2021–2026)

North Myrtle Beach Grand Strand Airport (5.6 miles)

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  • Average Low 2021–2026

    56.7 °F

  • Average 2021–2026

    65.2 °F

  • Average High 2021–2026

    73.7 °F
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