Great Cranberry Island - Bunker Head Weather Forecast

    • 56
    • 63

    Patchy Fog

    • 58
    • 63

    Areas Fog

    • 48
    • 65

    Mostly Sunny

    • 48
    • 59

    Sunny

    • 54
    • 59

    Mostly Sunny

    • 55
    • 61

    Partly Sunny

Today 17 Sep Coastal Hancock

Patchy fog this morning. Partly sunny. Highs in the lower 70s. South Winds 5 to 10 Mph.

Tonight 17 Sep Coastal Hancock

Mostly cloudy. Patchy fog. Lows in the lower 50s. Southwest Winds around 5 Mph.

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Great Cranberry Island - Bunker Head Temperature Statistics

September Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (15.5 miles)

  • Lowest 13 September, 2025

    43 °F

  • Average September

    60.4 °F

  • Highest 1 September, 2025

    78.1 °F

Climate (2020–Present)

Bar Harbor, Hancock County-Bar Harbor Airport (15.5 miles)

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  • Average Low 2020–2025

    38.6 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    54.8 °F
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