Seasons in Antarctic Peninsula

Climate of the Antarctic Peninsula is the mildest on the continent. Middle of summer (January) is the warmest time with averages of 1 to 2 °C (34-36 °C) and in June temperature drops to about -15…-20 °C (+5…-4 °F). Western coasts are warmest with 3 to 4 months with positive (above 32 °F) temperature and winter averages around -10 °C (14 °F). However in regions beyond 68th parallel of south latitude and in north-western coasts there are only 2 months with positive temperatures and winter average is -15 °C (5 °F). South-eastern part of the peninsula is coldest region.

Amount of precipitation vary greatly. Along western coasts between northernmost point and 68th parallel there are 350 to 600 mm (13.7-23.6”) of it. Most of it falls as rain during summer months. Southern parts of west coasts and northeastern regions are usually having less than 350 mm (13.7”) of annual precipitation. Eastern part of the peninsula is drier with 100-150 mm (3.9-5.9”) of annual precipitation comparing to 1000-2000 mm (39.3-78.7”) in subantarctic islands and 30-50 (1.1-1.9”) mm in central regions of continent.


Weather and Climate

Summer in Antarctic Peninsula

Antarctic Peninsula is tourist’s part of the continent. Deeper inland regions and other coastal areas are too severe for someone except scientists. Summer (November-March) here is time of relative warmth and constant sunlight.

At summer coastal ice melts down providing the very possibility of visiting the peninsula. Katabatic winds, which are basically cold air blown from ice cover, calms down and warmer oceanic winds are providing tolerable temperatures. Average of January, the warmest month, is about 2 °C (36 °F) with occasional warming up to 10 °C (50 °F).

The climate of the polar summer by months

(King George Island, the northern tip of the Antarctic Peninsula)

September
Max average t°: -6 °C (21 °F)
Min average t°: -13 °C (9 °F)
October
Max average t°: -5 °C (23 °F)
Min average t°: -12 °C (10 °F)
November
Max average t°: -4 (25 °F)
Min average t°: -9 °C (16 °F)

Antarctic Peninsula is the only place of continent where precipitation may take form of rain. Yet most of time it is snowing. Western side of it is five times drier than eastern. Yet in any case weather won’t interfere your spectating of beauty of untouched nature with picturesque icebergs, bare rock, penguins, whales and seals.

(King George Island, the northern tip of the Antarctic Peninsula)

December
Max average t°: -1 °C (30 °F)
Min average t°: -9 °C (16 °F)
January
Max average t°: -2 °C (28 °F)
Min average t°: -8 °C (18 °F)
February
Max average t°: -2 °C (28 °F)
Min average t°: -7 °C (19 °F)


Winter in Antarctic Peninsula

Place with the mildest climate in Antarctica turns cold and dark during polar night at winter (April-October). There are numerous obstacles for transport connection along with severe weather conditions. July is the coldest month with averages of -15 to -20 °C (5…-4 °F). Temperatures aren’t as low as in the rest of Antarctica.

The climate of the polar winter by months

(King George Island, the northern tip of the Antarctic Peninsula)

March
Max average t°: -3 °C (27 °F)
Min average t°: -8 °C (18 °F)
April
Max average t°: -5 °C (23 °F)
Min average t°: -11 °C (12 °F)
May
Max average t°: -4 °C (25 °F)
Min average t°: -13 °C (9 °F)

Main obstacles are ice in the ocean and significant winds. Katabatic winds are colliding with warmer oceanic air occasionally creating storms. Combination of strong winds and low temperatures is especially hard in coastal areas with higher humidity. Moreover no one will take tourists at winter for all transport connections are closed.

(King George Island, the northern tip of the Antarctic Peninsula)

June
Max average t°: -4.5 °C (24 °F)
Min average t°: -15 °C (5 °F)
July
Max average t°: -6 °C (21 °F)
Min average t°: -16 °C (3 °F)
August
Max average t°: -7 °C (19 °F)
Min average t°: -13.5 (8 °F)