December weather forecast
Barrios, Guatemala

The first month of the winter, December, is still a hot month in Barrios, Guatemala, with temperature in the range of an average low of 19.5°C (67.1°F) and an average high of 30.5°C (86.9°F).

Temperature

The average high-temperature during December registers at a still hot 30.5°C (86.9°F), closely corresponding to the preceding month. An average minimum temperature of 19.5°C (67.1°F) marks the month of December in Barrios.

Heat index

The average heat index in December is appraised at a fiery hot 35°C (95°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
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. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

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

Rainfall

In Barrios, during December, the rain falls for 7.6 days and regularly aggregates up to 21mm (0.83") of precipitation. Throughout the year, in Barrios, there are 222.8 rainfall days, and 1340mm (52.76") of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 11h and 18min of daylight.
On the first day of December, sunrise is at 06:17 and sunset at 17:36. On the last day of the month, sunrise is at 06:32 and sunset at 17:49 CST.

Sunshine

The average sunshine in December in Barrios, Guatemala, is 7.6h.

UV index

The months with the lowest UV index in Barrios are January, May, June, August through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 in December interprets into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.