October weather forecast
Saint Helena, Ascension and Tristan da Cunha

October brings further progress in the spring season to the islands of Saint Helena, Ascension, and Tristan da Cunha, with continued warming temperatures and variations in precipitation.

In Saint Helena, October sees an increase in temperatures, typically ranging from 16°C (60.8°F) to 24°C (75.2°F), marking the heart of the spring season. Rainfall also increases compared to September, bringing about lush greenery throughout the island. The capital, Jamestown, reflects these climatic conditions. As the island moves from October to November, temperatures are expected to increase further, and rainfall will begin to taper off.

Ascension Island in October experiences an increase in temperatures, typically fluctuating from 24°C (75.2°F) to 31°C (87.8°F). Rainfall also continues to rise compared to September, indicating the progression into the wet season. Georgetown, the main settlement on Ascension Island, aligns with these weather patterns. Moving into November, there will be a slight rise in both temperature and rainfall.

On Tristan da Cunha, October sees temperatures ranging between 12°C (53.6°F) and 17°C (62.6°F), marking a significant warming trend. Rainfall remains high due to the island's oceanic climate, although there is a slight decrease compared to September. Edinburgh of the Seven Seas, the main settlement, echoes these weather conditions. As the island transitions into November, a minor increase in temperature is expected, while rainfall is expected to remain relatively consistent.

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• Jamestown - October »
  On the last day of October, sunrise is at 05:46 and sunset at 18:26 GMT. On the first day of October in Jamestown sunrise is at 06:04 and sunset at 18:19.
• Georgetown - October »
  In Georgetown in October, during 17.3 rainfall days, 14mm (0.55") of precipitation is typically accumulated. As October arrives in Georgetown the weather continues to transition towards the warmer months.
• Longwood - October »
  In Longwood during October, the rain falls for 9.2 days and regularly aggregates up to 6mm (0.24") of precipitation. As October takes its course, Longwood's average high-temperature registers at a still refreshing 19.9°C (67.8°F), closely aligning with the preceding month.
• Tristan da Cunha - October »
  On the first day of October in Tristan da Cunha sunrise is at 06:23 and sunset at 18:53. In Tristan da Cunha the average seawater temperature in October is 14°C (57.2°F).
• Ascension Island - October »
  In October, the average sea temperature in Ascension Island is 24°C (75.2°F). In Ascension Island during October, the rain falls for 3 days and regularly aggregates up to 7mm (0.28") of precipitation.
• Saint Helena Island - October »
  Saint Helena Island registers an average high-temperature of a still enjoyable 18°C (64.4°F) with the arrival of October, showing minor deviation from the preceding month. In Saint Helena Island, in October, the average water temperature is 20°C (68°F).