December weather forecast
Chapicuy, Uruguay

December brings in summer in full swing in Chapicuy, Uruguay. Higher temperatures, decreased pressure, and lower humidity characterize this summer month. While rainfall remains consistent, longer daylight hours ensure ample sunshine throughout the day. The cloud% decreases to 22%, promising more clear, sunny days. As the closing month of the year, December upholds a warm and bright climatic atmosphere, making it perfect for celebrating the holiday season outdoors.

Temperature

December's onset witnesses a minor shift in the average high-temperature, moving from a warm 27°C (80.6°F) in November to a tropical 30°C (86°F). During December nights, Chapicuy records an average temperature of 18.1°C (64.6°F).

Heat index

December's mean heat index is evaluated at a hot 34°C (93.2°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

In Chapicuy, the average relative humidity in December is 64%.

Rainfall

In Chapicuy, during December, the rain falls for 11.6 days and regularly aggregates up to 81mm (3.19") of precipitation. In Chapicuy, during the entire year, the rain falls for 116 days and collects up to 832mm (32.76") of precipitation.

Daylight

The month with the longest days in Chapicuy, Uruguay, is December, with an average of 14h and 12min of daylight.
On the first day of December, sunrise is at 05:38 and sunset at 19:42. On the last day of the month, sunrise is at 05:49 and sunset at 20:00 -03.

Sunshine

December has the most sunshine of the year, with an average of 10.9h of sunshine.

UV index

The months with the highest UV index are January and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the maximum UV index of 7 transforms into these recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.