Fire Mountain Park Weather Forecast

    • 46
    • 66

    Becoming Sunny

    • 47
    • 69

    Mostly Sunny

    • 49
    • 68

    Mostly Sunny

    • 50
    • 66

    Mostly Sunny

    • 52
    • 69

    Mostly Sunny

    • 55
    • 72

    Mostly Sunny

Today 3 Dec San Diego County Coastal Areas

Partly cloudy with a slight chance of Showers this Morning, then mostly sunny this afternoon. Highs 65 to 68. Light Winds becoming west 10 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 3 Dec San Diego County Coastal Areas

Partly cloudy. Lows 44 to 49. Areas of Winds north 10 Mph becoming east with Gusts to 25 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fire Mountain Park Temperature Statistics

December Temperature

Oceanside, Oceanside Municipal Airport (1.9 miles)

  • Lowest 1 December, 2025

    46 °F

  • Average December

    56.9 °F

  • Highest 1 December, 2025

    64.9 °F

Climate (2020–Present)

Oceanside, Oceanside Municipal Airport (1.9 miles)

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  • Average Low 2020–2025

    52.7 °F

  • Average 2020–2025

    62.3 °F

  • Average High 2020–2025

    71.6 °F
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