Shelter Island Weather Forecast

    • 63
    • 71

    Mostly Cloudy

    • 64
    • 72

    Patchy Fog

    • 63
    • 73

    Mostly Cloudy

    • 63
    • 71

    Mostly Cloudy

    • 63
    • 70

    Mostly Cloudy

    • 63
    • 68

    Mostly Cloudy

Today 25 Sep San Diego County Coastal Areas

Cloudy this morning. Becoming mostly sunny. Patchy fog this morning. Highs around 71 near the coast to 73 to 76 inland. Areas of Winds northwest 10 to 15 Mph. Gusts to 25 Mph this afternoon.

Tonight 25 Sep San Diego County Coastal Areas

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 55 to 61. Areas of Winds northwest 10 to 15 Mph with Gusts to 25 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Shelter Island Temperature Statistics

September Temperature

San Diego, North Island, Naval Air Station (1.9 miles)

  • Lowest 19 September, 2023

    59.6 °F

  • Average September

    71.4 °F

  • Highest 10 September, 2023

    84.7 °F

Climate (2010–Present)

San Diego, North Island, Naval Air Station (1.9 miles)

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  • Average Low 2010–Present

    57.8 °F

  • Average 2010–Present

    63.2 °F

  • Average High 2010–Present

    69.4 °F
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