Johnson Island
Island Small Antarctic island in remote polar waters
A small, uninhabited Antarctic island off the continental coast; Johnson Island is visited only by research teams or expedition vessels during the austral summer.
Johnson Island is an island in Antarctic waters located at the provided coordinates; it is uninhabited and lies within the polar maritime environment.
The feature is remote and ice- and weather-affected for most of the year, with no permanent population or infrastructure noted. Scientific or occasional expedition visits are the only typical human activity in such Antarctic islands.
As a geographic feature in Antarctica it was formed by regional geological processes and sits within the larger Antarctic coastal system. There is no recorded civilian settlement or continuous human use.
The island’s coordinates place it well within the Antarctic region; access is by expedition vessel or aircraft during the austral summer and approaches are subject to sea-ice and weather conditions.
How to Get to Johnson Island #
Accessible only via Antarctic expedition vessels during the austral summer; itineraries are subject to ice conditions and strict environmental regulations.
Tips for Visiting Johnson Island #
- Access is limited to expedition vessels during the Antarctic summer (November-March).
- Weather and ice conditions determine whether ships can approach; flexible itineraries are essential.
- Follow all Antarctic Treaty and IAATO guidelines - do not attempt to land without authorized expedition permission.
Best Time to Visit Johnson Island #
The Antarctic summer (Nov-Mar) is the only practical and permitted time to approach Johnson Island; access depends on ice and vessel capability.
Weather & Climate near Johnson Island #
Johnson Island's climate is classified as Ice Cap - Ice Cap climate with freezing summers (peaking in January) and freezing winters (coldest in August). Temperatures range from -22°C to 0°C. Abundant rainfall (1001 mm/year), wettest in April.
January
January is freezing with highs of 0°C and lows of -5°C. The driest month with just 13 mm and breezy conditions.
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February
February is freezing with highs of -4°C and lows of -9°C. Moderate rainfall (58 mm) and breezy conditions.
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March
March is freezing with highs of -9°C and lows of -15°C. Significant rainfall (117 mm) and windy conditions.
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April
April is freezing with highs of -10°C and lows of -16°C. The wettest month with heavy rain (129 mm) and windy conditions.
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May
May is freezing with highs of -12°C and lows of -19°C. Significant rainfall (115 mm) and windy conditions.
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June
June is freezing with highs of -15°C and lows of -21°C. Moderate rainfall (77 mm) and windy conditions.
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July
July is freezing with highs of -16°C and lows of -22°C. Significant rainfall (108 mm) and windy conditions.
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August
August is the coldest month with highs of -16°C and lows of -22°C. Significant rainfall (101 mm) and windy conditions.
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September
September is freezing with highs of -14°C and lows of -20°C. Regular rainfall (96 mm) and windy conditions.
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October
October is freezing with highs of -11°C and lows of -17°C. Regular rainfall (97 mm) and windy conditions.
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November
November is freezing with highs of -5°C and lows of -11°C. Moderate rainfall (56 mm) and windy conditions.
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December
December is freezing with highs of 0°C and lows of -5°C. Moderate rainfall (34 mm) and breezy conditions.
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