Sea Isle City Weather Forecast

    • 64
    • 73

    Chance Rain Showers

    • 66
    • 76

    Mostly Sunny

    • 64
    • 80

    Mostly Sunny

    • 64
    • 72

    Partly Sunny

    • 64
    • 70

    Mostly Cloudy

    • 65
    • 73

    Partly Sunny

    • 65
    • 75

    Partly Sunny

Today 17 Sep Atlantic Coastal Cape May

Mostly cloudy late this Morning, then becoming partly sunny. A chance of Showers and Thunderstorms. Near steady temperature in the lower 70s. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 17 Sep Atlantic Coastal Cape May

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms this Evening, then a chance of Showers after midnight. Patchy fog this evening. Areas of fog after midnight. Lows in the mid 60s. Southeast Winds 5 to 10 Mph, becoming northwest after midnight. Chance of rain 40 percent.

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Sea Isle City Temperature Statistics

September Temperature

Wildwood, Cape May County Airport (14.9 miles)

  • Lowest 9 September, 2025

    54 °F

  • Average September

    68.6 °F

  • Highest 6 September, 2025

    87.1 °F

Climate (2020–Present)

Wildwood, Cape May County Airport (14.9 miles)

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  • Average Low 2020–2025

    49.7 °F

  • Average 2020–2025

    57.1 °F

  • Average High 2020–2025

    64.5 °F
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