Port San Luis Weather Forecast

    • 60
    • 69

    Decreasing Clouds

    • 59
    • 68

    Patchy Fog

    • 58
    • 64

    Mostly Cloudy

    • 57
    • 63

    Mostly Cloudy

    • 56
    • 62

    Mostly Cloudy

    • 56
    • 62

    Partly Sunny

Today 10 Aug San Luis Obispo County Beaches

Low Clouds and fog mostly clearing in the afternoon. Highs from the mid to upper 60s at the Beaches to the mid to upper 70s inland.

Tonight 10 Aug San Luis Obispo County Beaches

Low Clouds and fog. Lows in the mid 50s to around 60.

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Port San Luis Temperature Statistics

August Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (7.5 miles)

  • Lowest 1 August, 2026

    52.6 °F

  • Average August

    68.2 °F

  • Highest 1 August, 2026

    82.7 °F

Climate (2021–2026)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (7.5 miles)

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  • Average Low 2021–2026

    50.2 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    73.2 °F
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