Shelter Island Weather Forecast

    • 60
    • 80

    Increasing Clouds

    • 59
    • 82

    Partly Sunny

    • 58
    • 78

    Patchy Fog

    • 58
    • 77

    Patchy Fog

    • 59
    • 78

    Patchy Fog

    • 58
    • 79

    Patchy Fog

Today 19 Mar San Diego County Coastal Areas

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Local visibility one quarter mile or less at Times this morning. Highs 79 to 84 near the coast to 88 to 93 inland. Light Winds becoming west 10 Mph this afternoon.

Tonight 19 Mar San Diego County Coastal Areas

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Local visibility one quarter mile or less at Times overnight. Lows 57 to 62. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Shelter Island Temperature Statistics

March Temperature

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

  • Lowest 6 March, 2026

    51.1 °F

  • Average March

    63 °F

  • Highest 8 March, 2026

    87.1 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    57.4 °F

  • Average 2021–2026

    63.2 °F

  • Average High 2021–2026

    69.3 °F
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