Antarctica Weather in December

December is the warmest month, but still very cold:

• Average: -12°C to -2°C (10°F to 28°F)
• Record high: 17.5°C (63.5°F) in 2015
• Wind: 15–25 knots (28–46 km/h)
• Light snowfall common
• Up to 24 hours daylight

Regional Variation

• Coastal: -5°C to -2°C (23°F to 28°F)
• Inland: -20°C to -35°C (-4°F to -31°F)
• Mountains: -35°C to -50°C (-31°F to -58°F)

Good time to visit for relatively mild conditions and long days; prepare for cold and wind.