Climate in Antarctica

Antarctica has a highly diverse climate, with major differences between regions. Annual temperatures range from lows of -34°C in the coldest regions to highs of 13°C in the warmest areas. Annual precipitation ranges from 13mm in drier regions to 289mm in wetter parts of the country. Snow is common across the country during winter months. The warmest areas are cool year-round while the coldest regions remain very cold, making Antarctica a country of sharp climate contrasts.

Temperature patterns across Antarctica vary by region, with distinct differences between areas. The Northwest is the warmest part of the country, with peak temperatures reaching 13°C and an annual average of 5°C. Cooler conditions are found in the East, where winter lows drop to -34°C and an annual average of -19°C. This 24°C difference in annual averages between regions means travellers can experience vastly different conditions depending on which part of Antarctica they visit. The biggest regional differences emerge in summer, with up to 29°C variation across the country. For example, Marambio Airport in the averages 5°C annually, while Ice Runway in the averages -19°C.

Antarctica sees notable variation in rainfall across its regions, ranging from 13mm to 289mm per year. The Northwest receives the most rainfall, at approximately 288mm annually. The East is the driest, with around 13mm per year. Precipitation tends to be somewhat heavier in summer across most regions, though rain falls year-round. All regions receive notable snowfall during winter, though amounts vary between areas. Visitors heading to wetter areas can expect more frequent rain than those staying in drier parts of the country.