Sea Isle City Weather Forecast

    • 36
    • 39

    Mostly Sunny

    • 26
    • 47

    Mostly Sunny

    • 32
    • 39

    Chance Rain

    • 36
    • 48

    Slight Chance Rain

    • 34
    • 44

    Mostly Cloudy

    • 39
    • 46

    Slight Chance Rain

    • 37
    • 52

    Mostly Cloudy

Today 20 Dec Atlantic Coastal Cape May

Mostly sunny. Cooler with Highs in the lower 40s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph, becoming southwest 5 to 10 Mph this afternoon.

Tonight 20 Dec Atlantic Coastal Cape May

Mostly clear. Lows in the mid 30s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sea Isle City Temperature Statistics

December Temperature

Wildwood, Cape May County Airport (14.9 miles)

  • Lowest 9 December, 2025

    19 °F

  • Average December

    35.7 °F

  • Highest 17 December, 2025

    55 °F

Climate (2020–Present)

Wildwood, Cape May County Airport (14.9 miles)

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  • Average Low 2020–2025

    49.6 °F

  • Average 2020–2025

    57.1 °F

  • Average High 2020–2025

    64.4 °F
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