Jamestown
Saint Helena, Ascension and Tristan da Cunha
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Jamestown, Saint Helena, Ascension and Tristan da Cunha

The valley town of Jamestown in Saint Helena, with a view of mountain slopes on both sides
The valley town of Jamestown in Saint Helena, with a view of mountain slopes on both sides
January, the same as December, is another warm summer month in Jamestown, Saint Helena, Ascension and Tristan da Cunha, with average temperature fluctuating between 21°C (69.8°F) and 27°C (80.6°F).

Temperature

In Jamestown, the average high-temperature in January slightly increases, from 24°C (75.2°F) in December, to a still warm 27°C (80.6°F). The average low-temperature, in Jamestown, is 21°C (69.8°F).

Rainfall

In January, in Jamestown, the rain falls for 4 days. Throughout January, 8mm (0.3") of precipitation is accumulated. Throughout the year, in Jamestown, Saint Helena, Ascension and Tristan da Cunha, there are 40.7 rainfall days, and 113mm (4.4") of precipitation is accumulated.

Daylight

In Jamestown, the average length of the day in January is 12.9h.

What is the temperature in January in Jamestown?

The average high-temperature, in January, in Jamestown, Saint Helena, Ascension and Tristan da Cunha, is 27°C (80.6°F), while the average low-temperature is 21°C (69.8°F).

How many days does it rain in January in Jamestown?

In Jamestown, in January, during 4 rainfall days, 8mm (0.3") of precipitation is typically accumulated.

What is the average length of the day in January in Jamestown?

The average length of the day in January in Jamestown, Saint Helena, Ascension and Tristan da Cunha, is 12.9h.
Average temperature in January - Jamestown, Saint Helena, Ascension and Tristan da Cunha
  • Average high temperature in January: 27°C

The warmest month (with the highest average high temperature) is March (28°C).
Months with the lowest average high temperature are July, August and September (22°C).

  • Average low temperature in January: 21°C

The month with the highest average low temperature is March (22°C).
Coldest months (with the lowest average low temperature) are July, August and September (17°C).

Average rainfall in January - Jamestown, Saint Helena, Ascension and Tristan da Cunha
  • Average rainfall in January: 8mm

The wettest month (with the highest rainfall) is March (20mm).
The driest month (with the lowest rainfall) is November (0mm).

Average rainfall days in January - Jamestown, Saint Helena, Ascension and Tristan da Cunha
  • Average rainfall days in January: 4 days

The month with the highest number of rainy days is July (8 days).
The month with the lowest number of rainy days is November (0 days).

Average daylight in January - Jamestown, Saint Helena, Ascension and Tristan da Cunha
  • Average daylight in January: 12.9h

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