Intracoastal Waterway - Myrtle Beach Weather Forecast

    • 53
    • 74

    Sunny

    • 56
    • 79

    Sunny

    • 59
    • 81

    Mostly Sunny

    • 63
    • 83

    Mostly Sunny

    • 67
    • 84

    Mostly Sunny

    • 69
    • 84

    Mostly Sunny

    • 70
    • 84

    Mostly Sunny

Today 25 Sep Coastal Horry

Mostly sunny. Highs in the mid 80s.

Tonight 25 Sep Coastal Horry

Clear. Lows in the lower 50s. North Winds 5 to 10 Mph.

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  • Temperature Real-Time

Intracoastal Waterway - Myrtle Beach Temperature Statistics

September Temperature

Myrtle Beach International Airport (1.9 miles)

  • Lowest 16 September, 2026

    68 °F

  • Average September

    79.9 °F

  • Highest 14 September, 2026

    93 °F

Climate (2021–2026)

Myrtle Beach International Airport (1.9 miles)

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  • Average Low 2021–2026

    58.2 °F

  • Average 2021–2026

    65.7 °F

  • Average High 2021–2026

    72.9 °F
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