December weather forecast
Stanley, Falkland Islands (Islas Malvinas)

Stanley's December weather continues the trend set by November with high average temperatures. The daylight hours peak once more, ending the year on a high note. Relative humidity presents a decent levels at 76%. The likelihood of rain remains high, but it's a small price to pay for soaking up the sun in Stanley. The warm and sunny December days perfectly round-off the year, kicking off the festive season on a bright note.

Temperature

The introduction of December in Stanley notes a subtle temperature variation to a refreshing 13.4°C (56.1°F) from November's 11.9°C (53.4°F). Throughout the month of December, the average temperature dips to an icy 4.4°C (39.9°F) at night.

Humidity

In Stanley, the average relative humidity in December is 76%.

Rainfall

In Stanley, in December, during 15 rainfall days, 52mm (2.05") of precipitation is typically accumulated. Throughout the year, in Stanley, there are 162 rainfall days, and 543mm (21.38") of precipitation is accumulated.

Sea temperature

In Stanley, Falkland Islands (Islas Malvinas), in December, the average water temperature is 8.4°C (47.1°F).
Note: Swimming in 8.4°C (47.1°F) is deemed hazardous. Exposure to temperatures below 10°C (50°F) leads to immediate severe cold shock and hyperventilation.

Daylight

With an average of 16h and 36min of daylight, December has the longest days of the year.
On the first day of December in Stanley, sunrise is at 04:31 and sunset at 20:50. On the last day of the month, sunrise is at 04:37 and sunset at 21:12 -03.

Sunshine

January, February, October through December, with an average of 6h of sunshine, are months with the most sunshine.

UV index

January and December, with an average maximum UV index of 8, are months with the highest UV index. A UV Index value of 8 to 10 symbolizes a very high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 8 during December translates into the following recommendations:
Always be cautious. Skin and eyes can be affected swiftly without protection. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.