Hennessy Islands
Island Small Antarctic island group off the Antarctic Peninsula
A group of islands off the Antarctic Peninsula, the Hennessy Islands are primarily of interest to scientists mapping geology and wildlife; tourist access is extremely limited.
How to Get to Hennessy Islands #
The Hennessy Islands are reached only as part of Antarctic expeditions; access is limited to research vessels or licensed cruise ships operating during the austral summer and is subject to environmental permitting.
Best Time to Visit Hennessy Islands #
Accessible only in the austral summer on scientific or expedition voyages; weather and ice dictate schedules.
Weather & Climate near Hennessy Islands #
Polar climate with cold summers (peaking in January) and freezing winters (coldest in August). Temperatures range from -12°C to 4°C. Moderate rainfall (724 mm/year).
January
January is cold with highs of 4°C and lows of 0°C. Moderate rainfall (49 mm).
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February
February is cold with highs of 3°C and lows of 0°C. Regular rainfall (83 mm).
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March
March is cold with highs of 2°C and lows of -2°C. The wettest month with 92 mm of rain.
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April
April is freezing with highs of 0°C and lows of -3°C. Moderate rainfall (70 mm).
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May
May is freezing with highs of -1°C and lows of -6°C. Moderate rainfall (55 mm).
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June
June is freezing with highs of -3°C and lows of -8°C. Moderate rainfall (52 mm).
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July
July is freezing with highs of -5°C and lows of -11°C. Moderate rainfall (53 mm).
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August
August is the coldest month with highs of -4°C and lows of -12°C. Moderate rainfall (49 mm).
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September
September is freezing with highs of -3°C and lows of -10°C. Moderate rainfall (60 mm).
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October
October is freezing with highs of -1°C and lows of -8°C. Moderate rainfall (69 mm).
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November
November is freezing with highs of 1°C and lows of -4°C. Moderate rainfall (49 mm).
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December
December is cold with highs of 3°C and lows of -1°C. Moderate rainfall (43 mm).