October weather forecast and climate
Saint Helena Island, Saint Helena, Ascension and Tristan da Cunha

The Longwood house, an ancient exile residence of Napoleon, in Saint Helena Island, Sanit Helena
The Longwood house, an ancient exile residence of Napoleon, in Saint Helena Island, Sanit Helena

What is the temperature in October in Saint Helena Island?

The average high-temperature, in October, is 18°C (64.4°F), while the average low-temperature is 15°C (59°F).
Average temperature in October - Saint Helena Island, Saint Helena, Ascension and Tristan da Cunha
  • Average high temperature in October: 18°C

Warmest months (with the highest average high temperature) are February and March (23°C).
The month with the lowest average high temperature is August (17°C).

  • Average low temperature in October: 15°C

Months with the highest average low temperature are February and March (19°C).
The coldest month (with the lowest average low temperature) is August (14°C).

Average rainfall in October - Saint Helena Island, Saint Helena, Ascension and Tristan da Cunha
  • Average rainfall in October: 43mm

The wettest month (with the highest rainfall) is March (90mm).
The driest month (with the lowest rainfall) is November (30mm).

Average rainfall days in October - Saint Helena Island, Saint Helena, Ascension and Tristan da Cunha
  • Average rainfall days in October: 14 days

Months with the highest number of rainy days are June and July (16 days).
Months with the lowest number of rainy days are September and December (12 days).

Average sea temperature in October - Saint Helena Island, Saint Helena, Ascension and Tristan da Cunha
  • Average sea temperature in October: 20°C

Best months for swimming (with the highest average sea temperature) are February, March and April (25°C).
The coldest month (with the lowest average sea temperature) is October (20°C).

Average daylight in October / Average sunshine in October - Saint Helena Island, Saint Helena, Ascension and Tristan da Cunha
  • Average daylight in October: 12.5h

The month with the longest days is December (Average daylight: 13.1h).
The month with shortest days is June (Average daylight: 11.2h).

  • Average sunshine in October: 14h

Months with most sunshine are June and July (Average sunshine: 16h).
Months with least sunshine are September and December (Average sunshine: 12).

Average UV index in October - Saint Helena Island, Saint Helena, Ascension and Tristan da Cunha
  • Average UV index in October: 12

Months with the highest UV index are January, February, March, October, November and December (UV index 12).
The month with the lowest UV index is June (UV index 7).

deutscheenglishespañolрусский中文