Port San Luis Weather Forecast

    • 52
    • 61

    Increasing Clouds

    • 52
    • 60

    Mostly Cloudy

    • 51
    • 58

    Partly Sunny

    • 54
    • 59

    Mostly Sunny

    • 55
    • 63

    Mostly Sunny

    • 55
    • 65

    Breezy

Today 11 May San Luis Obispo County Beaches

Areas of low Clouds and fog in the morning then sunny. Highs from the mid 50s to around 60 at the Beaches to the mid 60s to around 70 inland.

Tonight 11 May San Luis Obispo County Beaches

Mostly clear in the evening then mostly cloudy. Lows in the upper 40s to mid 50s.

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Port San Luis Temperature Statistics

May Temperature

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

  • Lowest 4 May, 2026

    46.7 °F

  • Average May

    59.6 °F

  • Highest 6 May, 2026

    72.6 °F

Climate (2021–Present)

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

    60.8 °F

  • Average High 2021–2026

    73.2 °F
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