December weather forecast
Sensembra, El Salvador

December, the first month of the winter in Sensembra, is still a tropical month, with an average temperature fluctuating between 20.1°C (68.2°F) and 32°C (89.6°F).

Temperature

The arrival of December denotes a barely perceptible change in the average high-temperatures to a still tropical 32°C (89.6°F) from November's 31.5°C (88.7°F). Nighttime temperatures in Sensembra, El Salvador, hover around an average low of 20.1°C (68.2°F) in December.

Heat index

Throughout December, the heat index is evaluated at a sweltering 39°C (102.2°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. 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 particularly relevant to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In December, the average relative humidity in Sensembra is 65%.

Rainfall

In Sensembra, during December, the rain falls for 4.1 days and regularly aggregates up to 5mm (0.2") of precipitation. Throughout the year, there are 188.2 rainfall days, and 954mm (37.56") of precipitation is accumulated.

Daylight

December has the shortest days of the year in Sensembra, with an average of 11h and 18min of daylight.
On the first day of the month, sunrise is at 06:00 and sunset at 17:23. On the last day of December, in Sensembra, sunrise is at 06:15 and sunset at 17:36 CST.

Sunshine

December has the least sunshine of the year in Sensembra, with an average of 7.6h of sunshine.

UV index

The months with the highest UV index in Sensembra are January through August, November and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 7 translates into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.