April weather forecast
South Georgia and the South Sandwich Islands

April is a month of profound transition in South Georgia and the South Sandwich Islands, firmly entrenched in the Antarctic autumn. Average temperatures continue their downward trend, now ranging between -1°C (30.2°F) and 4°C (39.2°F). These cooler temperatures are a harbinger of the upcoming winter, indicating the shift towards the harsher conditions that define the colder months.

The settlement of Grytviken, located on the northern coast of South Georgia, continues to experience temperatures slightly above the island's average due to the mitigating influence of the ocean. However, this advantage lessens as the temperatures continue to fall throughout the month.

In April, the wind speeds escalate, with an average around 20km/h (12.4mph). These wind speeds can surge during storms, with gusts reaching significantly higher velocities. These storm events, which become more frequent and intense in April, foreshadow the storm-prone winter season.

Precipitation levels rise during April. While rain can still occur, particularly in coastal areas, snow becomes increasingly prevalent due to falling temperatures. The higher altitude regions are likely to see substantial snowfall, with potential for accumulation as the month progresses.

April marks a significant decrease in wildlife activity. The bird and marine species that were once abundant during the warmer months have largely migrated away, leaving only the most hardy species that can withstand the incoming colder conditions.

When compared to March, April is significantly colder and windier, with a higher likelihood of snow. Looking ahead to May, this trend continues and intensifies as the islands move closer to the winter season, with temperatures dropping further, and wind speeds and snowfall increasing.

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• South Georgia Island - April »
  On the last day of April, in South Georgia Island, sunrise is at 07:45 and sunset at 17:01 -02. The average high-temperature and low-temperature during April are 1.9°C (35.4°F) and -1°C (30.2°F) respectively.
• Grytviken - April »
  The month with the most rainfall in Grytviken, South Georgia and the South Sandwich Islands, is April, when the rain falls for 16 days and typically aggregates up to 114mm (4.49") of precipitation. In Grytviken in April, during 15.7 snowfall days, 325mm (12.8") of snow is typically accumulated.
• Stromness - April »
  In Stromness in April, during 15.7 snowfall days, 325mm (12.8") of snow is typically accumulated. In Stromness, South Georgia and the South Sandwich Islands, the average sunshine duration in April is 3.3h.