Trinidad Head Weather Forecast

    • 47
    • 51

    Rain

    • 48
    • 56

    Rain

    • 45
    • 51

    Rain Showers

    • 45
    • 50

    Rain

    • 47
    • 51

    Rain

    • 46
    • 53

    Rain

    • 45
    • 53

    Rain Likely

Today 20 Dec Northern Humboldt Coast

Mostly cloudy. Patchy fog in the morning. Chance of rain through the day. Highs 48 to 58. Southeast wind around 5 Mph.

Tonight 20 Dec Northern Humboldt Coast

Rain. Lows 41 to 51. Northeast wind around 10 Mph shifting to the southeast overnight.

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Trinidad Head Temperature Statistics

December Temperature

Arcata / Eureka, Arcata Airport (5.6 miles)

  • Lowest 1 December, 2025

    37 °F

  • Average December

    49.5 °F

  • Highest 16 December, 2025

    61 °F

Climate (2020–Present)

Arcata / Eureka, Arcata Airport (5.6 miles)

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  • Average Low 2020–2025

    45.4 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    59.3 °F
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