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

July 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
July, like June, is an agreeable winter month in Jamestown, Saint Helena, Ascension and Tristan da Cunha, with average temperature ranging between min 17°C (62.6°F) and max 22°C (71.6°F).

Temperature

July through September, with an average high-temperature of 22°C (71.6°F), are the coldest months.

Rainfall

In Jamestown, it is raining for 8 days, with typically 8mm (0.3") of accumulated precipitation. In Jamestown, during the entire year, the rain falls for 40.7 days and collects up to 113mm (4.4") of precipitation.

Daylight

In July, the average length of the day is 11.3h.

What are the coldest months in Jamestown?

The coldest months are July through September, with an average high-temperature of 22°C (71.6°F).

What is the temperature in July in Jamestown?

In July, in Jamestown, Saint Helena, Ascension and Tristan da Cunha, the average high-temperature is 22°C (71.6°F), and the average low-temperature is 17°C (62.6°F).

How many days does it rain in July in Jamestown?

In Jamestown, Saint Helena, Ascension and Tristan da Cunha, in July, during 8 rainfall days, 8mm (0.3") of precipitation is typically accumulated.

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

In July, the average length of the day is 11.3h.
Average temperature in July - Jamestown, Saint Helena, Ascension and Tristan da Cunha
  • Average high temperature in July: 22°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 July: 17°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 July - Jamestown, Saint Helena, Ascension and Tristan da Cunha
  • Average rainfall in July: 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 July - Jamestown, Saint Helena, Ascension and Tristan da Cunha
  • Average rainfall days in July: 8 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 July - Jamestown, Saint Helena, Ascension and Tristan da Cunha
  • Average daylight in July: 11.3h

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