Stanley
Falkland Islands (Islas Malvinas)
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Stanley, Falkland Islands (Islas Malvinas)

Clear waters, sandy beaches, and yellow gorse in the mountainous Stanley, in the Falkland Islands
Clear waters, sandy beaches, and yellow gorse in the mountainous Stanley, in the Falkland Islands
The first month of the spring, September, is also a frosty month in Stanley, Falkland Islands (Islas Malvinas), with temperature in the range of an average low of -0.2°C (31.6°F) and an average high of 7.7°C (45.9°F).

Temperature

In September, the average high-temperature is practically the same as in August - a still frosty 7.7°C (45.9°F). In September, the average low-temperature is -0.2°C (31.6°F).

Humidity

In September, the average relative humidity is 84%.

Rainfall

September is the month with the least rainfall in Stanley. Rain falls for 12 days and accumulates 34mm (1.3") of precipitation.

Sea temperature

In Stanley, the average water temperature is 4.8°C (40.6°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

Daylight

In Stanley, the average length of the day is 11.7h.

Sunshine

The average sunshine in Stanley is 5h.

UV index

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
The daily maximum UV index of 3 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Stanley?

In September, in Stanley, Falkland Islands (Islas Malvinas), the average high-temperature is 7.7°C (45.9°F), and the average low-temperature is -0.2°C (31.6°F).

What is the average humidity in September in Stanley?

In September, the average relative humidity in Stanley is 84%.

How many days does it rain in September in Stanley?

In September, in Stanley, the rain falls for 12 days. Throughout September, 34mm (1.3") of precipitation is accumulated.

What is the driest month in Stanley?

September is the month with the least rainfall in Stanley. Rain falls for 12 days and accumulates 34mm (1.3") of precipitation.

What is the sea temperature in September in Stanley?

In Stanley, Falkland Islands (Islas Malvinas), the average seawater temperature in September is 4.8°C (40.6°F). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

How many hours of daylight does Stanley have in September?

In Stanley, the average length of the day in September is 11.7h.

How long on average sun shines in September in Stanley?

In Stanley, the average sunshine in September is 5h.

What is the UV index intensity in September in Stanley?

The average daily maximum UV index in September in Stanley is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV radiation.
Average temperature in September - Stanley, Falkland Islands (Islas Malvinas)
  • Average high temperature in September: 7.7°C

The warmest month (with the highest average high temperature) is January (14.1°C).
The month with the lowest average high temperature is July (5.1°C).

  • Average low temperature in September: -0.2°C

The month with the highest average low temperature is February (5.4°C).
The coldest month (with the lowest average low temperature) is July (-1.2°C).

Average humidity in September - Stanley, Falkland Islands (Islas Malvinas)
  • Average humidity in September: 84%

The month with the highest relative humidity is July (90%).
The month with the lowest relative humidity is November (74%).

Average rainfall in September - Stanley, Falkland Islands (Islas Malvinas)
  • Average rainfall in September: 34mm

The wettest month (with the highest rainfall) is January (63mm).
The driest month (with the lowest rainfall) is September (34mm).

Average rainfall days in September - Stanley, Falkland Islands (Islas Malvinas)
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is January (17 days).
The month with the lowest number of rainy days is October (11 days).

Average sea temperature in September - Stanley, Falkland Islands (Islas Malvinas)
  • Average sea temperature in September: 4.8°C

The best month for swimming (with the highest average sea temperature) is February (9.8°C).
The coldest month (with the lowest average sea temperature) is August (4.7°C).

Average daylight in September / Average sunshine in September - Stanley, Falkland Islands (Islas Malvinas)
  • Average daylight in September: 11.7h

The month with the longest days is December (Average daylight: 16.6h).
The month with shortest days is June (Average daylight: 7.9h).

  • Average sunshine in September: 5h

Months with most sunshine are January, February, October, November and December (Average sunshine: 6h).
The month with least sunshine is June (Average sunshine: 2h).

Average UV index in September - Stanley, Falkland Islands (Islas Malvinas)
  • Average UV index in September: 3

Months with the highest UV index are January and December (UV index 8).
The month with the lowest UV index is June (UV index 0).