Delaware Bay Weather Forecast

    • 73
    • 78

    Mostly Cloudy

    • 73
    • 79

    Rain Showers

    • 73
    • 82

    Rain Showers Likely

    • 69
    • 79

    Mostly Sunny

    • 68
    • 77

    Mostly Sunny

    • 69
    • 82

    Mostly Sunny

Today 11 Sep Delaware Beaches

Mostly cloudy. Scattered Showers this morning. Not as warm. Near steady temperature in the mid 70s. North Winds 5 to 10 Mph, becoming northeast this afternoon. Chance of rain 50 percent.

Tonight 11 Sep Delaware Beaches

Mostly cloudy. Humid with Lows in the lower 70s. East Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Delaware Bay Temperature Statistics

September Temperature

Georgetown - Delaware Coastal Airport (14.3 miles)

  • Lowest 8 September, 2026

    60.7 °F

  • Average September

    76.5 °F

  • Highest 1 September, 2026

    91.7 °F

Climate (2021–2026)

Georgetown - Delaware Coastal Airport (14.3 miles)

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  • Average Low 2021–2026

    48.9 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    68.3 °F
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