Rancho Santa Fe Weather Forecast

    • 63
    • 76

    Increasing Clouds

    • 64
    • 75

    Mostly Cloudy

    • 62
    • 74

    Partly Sunny

    • 63
    • 75

    Mostly Sunny

    • 64
    • 80

    Partly Sunny

    • 66
    • 82

    Partly Sunny

    • 67
    • 83

    Mostly Sunny

Today 19 Sep San Diego County Coastal Areas

Partly cloudy in the morning. Becoming mostly sunny. Highs 78 to 83 near the coast to 84 to 88 inland.

Tonight 19 Sep San Diego County Coastal Areas

Partly cloudy this evening. Becoming cloudy. Lows 61 to 65. Areas of Winds west to 10 Mph this evening becoming light.

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  • Temperature Forecast NOAA

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Rancho Santa Fe Temperature Statistics

September Temperature

Carlsbad, McClellan-Palomar Airport (8.7 miles)

  • Lowest 3 September, 2026

    62.7 °F

  • Average September

    75.9 °F

  • Highest 7 September, 2026

    99.6 °F

Climate (2021–2026)

Carlsbad, McClellan-Palomar Airport (8.7 miles)

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  • Average Low 2021–2026

    57.2 °F

  • Average 2021–2026

    63.2 °F

  • Average High 2021–2026

    69.5 °F
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