Santa Rosa Weather Forecast

    • 78
    • 92

    Partly Sunny

    • 77
    • 91

    Rain Showers

    • 77
    • 92

    Rain Showers

    • 78
    • 92

    Rain Showers

    • 77
    • 92

    Rain Showers

    • 77
    • 92

    Rain Showers

Today 13 Sep San Juan and Vicinity

Variably cloudy until late Afternoon, then becoming partly cloudy. Scattered Showers, mainly this morning. Highs around 92. Temperature falling this afternoon. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

Tonight 13 Sep San Juan and Vicinity

Partly cloudy with isolated Showers. Lows around 83. East Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santa Rosa Temperature Statistics

September Temperature

San Juan Fernando Luis Ribas Dominicci (7.5 miles)

  • Lowest 1 September, 2026

    77 °F

  • Average September

    85.7 °F

  • Highest 4 September, 2026

    89.6 °F

Climate (2021–2026)

San Juan Fernando Luis Ribas Dominicci (7.5 miles)

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  • Average Low 2021–2026

    77.7 °F

  • Average 2021–2026

    82.6 °F

  • Average High 2021–2026

    85.4 °F
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