Isla Vista Weather Forecast

    • 58
    • 78

    Mostly Sunny

    • 59
    • 79

    Increasing Clouds

    • 58
    • 76

    Mostly Cloudy

    • 61
    • 75

    Partly Sunny

    • 64
    • 73

    Mostly Sunny

    • 65
    • 76

    Mostly Sunny

    • 65
    • 75

    Partly Sunny

Today 18 Sep Santa Barbara County Southeastern Coast

Mostly cloudy in the morning then partly cloudy. Highs in the mid 70s to lower 80s.

Tonight 18 Sep Santa Barbara County Southeastern Coast

Mostly clear. Lows in the mid 50s to mid 60s.

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Isla Vista Temperature Statistics

September Temperature

Santa Barbara, Santa Barbara Municipal Airport (1.2 miles)

  • Lowest 2 September, 2026

    53.7 °F

  • Average September

    71.5 °F

  • Highest 9 September, 2026

    96.7 °F

Climate (2021–2026)

Santa Barbara, Santa Barbara Municipal Airport (1.2 miles)

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  • Average Low 2021–2026

    51.6 °F

  • Average 2021–2026

    60.8 °F

  • Average High 2021–2026

    70 °F
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