December weather forecast
Arjona, Colombia

December, the first month of the winter in Arjona, is still a tropical month, with temperature in the range of an average high of 32.2°C (90°F) and an average low of 24.5°C (76.1°F).

Temperature

In December, Arjona experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 30.9°C (87.6°F) in November to a still hot 32.2°C (90°F). Arjona's nighttime temperature in December drops to an average of 24.5°C (76.1°F).

Heat index

Throughout December, the heat index is appraised at a blisteringly hot 43°C (109.4°F). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In December, the average relative humidity is 75%.

Rainfall

In Arjona, in December, during 14.5 rainfall days, 41mm (1.61") of precipitation is typically accumulated. In Arjona, during the entire year, the rain falls for 239.1 days and collects up to 1062mm (41.81") of precipitation.

Daylight

With an average of 11h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:03 and sunset at 17:37. On the last day of December, in Arjona, sunrise is at 06:18 and sunset at 17:50 -05.

Sunshine

The month with the least sunshine in Arjona, Colombia, is December, with an average of 7.3h of sunshine.

UV index

The months with the highest UV index in Arjona are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 7 in December interprets into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.