August weather forecast and climate
Tristan da Cunha, Saint Helena, Ascension and Tristan da Cunha

Average temperature in August - Tristan da Cunha, Saint Helena, Ascension and Tristan da Cunha
  • Average high temperature in August: 14°C

The warmest month (with the highest average high temperature) is February (21°C).
Months with the lowest average high temperature are July, August and September (14°C).

  • Average low temperature in August: 10°C

The month with the highest average low temperature is February (17°C).
Coldest months (with the lowest average low temperature) are August and September (10°C).

Average rainfall in August - Tristan da Cunha, Saint Helena, Ascension and Tristan da Cunha
  • Average rainfall in August: 175mm

The wettest month (with the highest rainfall) is August (175mm).
The driest month (with the lowest rainfall) is January (93mm).

Average rainfall days in August - Tristan da Cunha, Saint Helena, Ascension and Tristan da Cunha
  • Average rainfall days in August: 26 days

The month with the highest number of rainy days is August (26 days).
The month with the lowest number of rainy days is February (16 days).

Average sea temperature in August - Tristan da Cunha, Saint Helena, Ascension and Tristan da Cunha
  • Average sea temperature in August: 13°C

Best months for swimming (with the highest average sea temperature) are February and March (18°C).
Coldest months (with the lowest average sea temperature) are August and September (13°C).

Average daylight in August / Average sunshine in August - Tristan da Cunha, Saint Helena, Ascension and Tristan da Cunha
  • Average daylight in August: 10.8h

The month with the longest days is December (Average daylight: 14.7h).
The month with shortest days is June (Average daylight: 9.6h).

  • Average sunshine in August: 3.4h

The month with most sunshine is February (Average sunshine: 5.1h).
The month with least sunshine is June (Average sunshine: 3.3h).

Average UV index in August - Tristan da Cunha, Saint Helena, Ascension and Tristan da Cunha
  • Average UV index in August: 3

The month with the highest UV index is January (UV index 12).
Months with the lowest UV index are June and July (UV index 2).

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