Fire Mountain Park Weather Forecast

    • 74
    • 95

    Mostly Sunny

    • 71
    • 87

    Mostly Sunny

    • 67
    • 83

    Partly Sunny

    • 66
    • 79

    Partly Sunny

    • 64
    • 79

    Mostly Sunny

    • 62
    • 78

    Mostly Sunny

    • 62
    • 77

    Mostly Sunny

Today 9 Sep San Diego County Coastal Areas

Mostly sunny. Highs 88 to 93 near the coast to 97 to 102 inland. Areas of Winds west to 10 Mph.

Tonight 9 Sep San Diego County Coastal Areas

Mostly clear this evening. Becoming partly cloudy. Lows around 73. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fire Mountain Park Temperature Statistics

September Temperature

Oceanside, Oceanside Municipal Airport (1.9 miles)

  • Lowest 3 September, 2026

    56.6 °F

  • Average September

    72.4 °F

  • Highest 7 September, 2026

    96.1 °F

Climate (2021–2026)

Oceanside, Oceanside Municipal Airport (1.9 miles)

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  • Average Low 2021–2026

    53 °F

  • Average 2021–2026

    62.7 °F

  • Average High 2021–2026

    72.3 °F
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