Trinidad Harbor Weather Forecast

    • 52
    • 59

    Partly Sunny

    • 51
    • 57

    Partly Sunny

    • 52
    • 59

    Partly Sunny

    • 54
    • 60

    Partly Sunny

    • 54
    • 60

    Partly Sunny

    • 54
    • 59

    Partly Sunny

    • 54
    • 60

    Partly Sunny

Today 26 Sep Northern Coastal Humboldt

Partly cloudy. Lows 47 to 57. Highs 62 to 77.

Tonight 26 Sep Northern Coastal Humboldt

Partly cloudy then becoming mostly cloudy in the late evening and overnight then becoming partly cloudy. Patchy fog overnight. Lows 44 to 54. Northwest wind around 10 Mph shifting to the southeast overnight.

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Trinidad Harbor Temperature Statistics

September Temperature

Arcata / Eureka, Arcata Airport (5.6 miles)

  • Lowest 24 September, 2026

    45 °F

  • Average September

    58.4 °F

  • Highest 9 September, 2026

    75.7 °F

Climate (2021–2026)

Arcata / Eureka, Arcata Airport (5.6 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    59.8 °F
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