Rancho Del Oro Weather Forecast

    • 63
    • 76

    Decreasing Clouds

    • 62
    • 76

    Partly Sunny

    • 62
    • 78

    Mostly Sunny

    • 63
    • 79

    Mostly Sunny

    • 62
    • 78

    Partly Sunny

    • 63
    • 77

    Partly Sunny

Today 16 Sep San Diego County Coastal Areas

Mostly cloudy with patchy drizzle in the Morning, then partly cloudy in the afternoon. Highs 72 to 76 near the coast to 76 to 79 inland. Light Winds becoming southwest 10 Mph in the afternoon.

Tonight 16 Sep San Diego County Coastal Areas

Partly cloudy. Lows 58 to 65. Light Winds.

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Rancho Del Oro Temperature Statistics

September Temperature

Oceanside, Oceanside Municipal Airport (2.5 miles)

  • Lowest 3 September, 2026

    56.6 °F

  • Average September

    75.8 °F

  • Highest 7 September, 2026

    100.7 °F

Climate (2021–2026)

Oceanside, Oceanside Municipal Airport (2.5 miles)

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  • Average Low 2021–2026

    53 °F

  • Average 2021–2026

    62.8 °F

  • Average High 2021–2026

    72.3 °F
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