Trinidad Harbor Weather Forecast

    • 54
    • 62

    Increasing Clouds

    • 54
    • 60

    Mostly Cloudy

    • 54
    • 58

    Mostly Cloudy

    • 53
    • 58

    Mostly Cloudy

    • 53
    • 57

    Mostly Cloudy

    • 53
    • 57

    Mostly Cloudy

    • 54
    • 58

    Mostly Cloudy

Today 11 Aug Northern Coastal Humboldt

Mostly cloudy in the morning then clearing. Patchy fog in the morning. Highs 62 to 75. West wind 5 to 15 Mph.

Tonight 11 Aug Northern Coastal Humboldt

Partly cloudy early in the evening then becoming mostly cloudy. Patchy fog overnight. Lows 49 to 59. Northwest wind 5 to 15 Mph.

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Trinidad Harbor Temperature Statistics

August Temperature

Arcata / Eureka, Arcata Airport (5.6 miles)

  • Lowest 3 August, 2026

    47.6 °F

  • Average August

    58.6 °F

  • Highest 1 August, 2026

    71.7 °F

Climate (2021–2026)

Arcata / Eureka, Arcata Airport (5.6 miles)

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  • Average Low 2021–2026

    45.7 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    59.7 °F
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