Halcyon Weather Forecast

    • 43
    • 73

    Sunny

    • 44
    • 75

    Mostly Sunny

    • 45
    • 76

    Sunny

    • 49
    • 81

    Sunny

    • 50
    • 71

    Partly Sunny

    • 50
    • 68

    Mostly Sunny

    • 53
    • 75

    Sunny

Today 5 Mar San Luis Obispo County Beaches

Sunny. Highs in the mid 60s to lower 70s. Northwest Winds 15 to 25 Mph.

Tonight 5 Mar San Luis Obispo County Beaches

Clear. Lows in the lower to mid 40s. Northwest Winds 15 to 25 Mph in the evening.

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Halcyon Temperature Statistics

March Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (9.3 miles)

  • Lowest 1 March, 2026

    48.9 °F

  • Average March

    57.6 °F

  • Highest 3 March, 2026

    73 °F

Climate (2021–Present)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (9.3 miles)

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  • Average Low 2021–2026

    50.1 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    72.9 °F
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