December weather forecast
Barú, Colombia

December, the first month of the winter in Barú, is a tropical month, with an average temperature ranging between max 30.5°C (86.9°F) and min 26.1°C (79°F).

Temperature

The advent of December brings an average high-temperature of a hot 30.5°C (86.9°F), exhibiting minor difference from the previous month. Nighttime temperatures hover around an average low of 26.1°C (79°F) in December, a slight descent from daytime highs.

Heat index

During December, the heat index is calculated to be a very hot 38°C (100.4°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in December is 76%.

Rainfall

In Barú, during December, the rain falls for 11.5 days and regularly aggregates up to 38mm (1.5") of precipitation. In Barú, during the entire year, the rain falls for 210.6 days and collects up to 1115mm (43.9") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 30min of daylight.
On the first day of December in Barú, sunrise is at 06:04 and sunset at 17:39. On the last day of the month, sunrise is at 06:19 and sunset at 17:52 -05.

Sunshine

The month with the least sunshine is December, with an average of 7.4h of sunshine.

UV index

The months with the highest UV index in Barú 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 rays for ordinary individuals.
Note: In December, the UV index of 7 transforms into the following advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. 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.