Routzhan Park Weather Forecast

    • 63
    • 98

    Hot

    • 57
    • 89

    Mostly Sunny

    • 54
    • 80

    Mostly Sunny

    • 54
    • 81

    Mostly Sunny

    • 54
    • 82

    Mostly Sunny

    • 52
    • 77

    Mostly Sunny

    • 52
    • 75

    Mostly Sunny

Today 10 Sep Santa Lucia Mountains

Sunny. Highs 97 to 106 except the lower to mid 90s closer to the coast. West Winds around 15 Mph in the afternoon.

Tonight 10 Sep Santa Lucia Mountains

Mostly clear in the evening then partly cloudy. Lows in the 60s to around 70. Northwest Winds around 15 Mph in the evening.

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Routzhan Park Temperature Statistics

September Temperature

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

  • Lowest 7 September, 2026

    49.6 °F

  • Average September

    67.6 °F

  • Highest 8 September, 2026

    91.9 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    50.2 °F

  • Average 2021–2026

    61.1 °F

  • Average High 2021–2026

    73.3 °F
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