December weather forecast
Jutiapa, El Salvador

December, the first month of the winter in Jutiapa, is still a hot month, with temperature in the range of an average high of 30.8°C (87.4°F) and an average low of 18.6°C (65.5°F).

Temperature

The initiation of December sees an average high-temperature of a still tropical 30.8°C (87.4°F), showing minor variations from the previous month. Jutiapa registers a significant drop in temperature in December, with average nighttime lows of 18.6°C (65.5°F).

Heat index

The average heat index in December is appraised at a torrid 37°C (98.6°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. 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. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In December, the average relative humidity is 69%.

Rainfall

In December, the rain falls for 3.3 days. Throughout December, 5mm (0.2") of precipitation is accumulated. Throughout the year, there are 192.2 rainfall days, and 1062mm (41.81") 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 the month, sunrise is at 06:03 and sunset at 17:25. On the last day of December, sunrise is at 06:19 and sunset at 17:38 CST.

Sunshine

January and December, with an average of 7.7h of sunshine, are months with the least sunshine in Jutiapa, El Salvador.

UV index

The months with the lowest UV index are January, June through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In December, a daily UV index of 6 turns into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.