The climate in the South Orkney Islands is typically windy, wet and cold. Summer lasts from December to March, and individuals who participate in an expedition cruise to the South Orkney Islands can expect an average temperature of 3.5 degrees Celsius (38.3 degrees Fahrenheit).

The South Orkney Islands are mostly inaccessible from late April to November due to the nearby water being ice-covered during this time period. The average winter temperature in July drops to -12.8 degrees Celsius (9 degrees Fahrenheit).