December weather forecast
Las Flores, El Salvador

December, the first month of the winter in Las Flores, is also a hot month, with an average temperature varying between 30.8°C (87.4°F) and 19.1°C (66.4°F).

Temperature

December's onset sees an average high-temperature of a still tropical 30.8°C (87.4°F), exhibiting a slight fluctuation from the previous month. Las Flores's average low-temperature in December is measured at a comfortable 19.1°C (66.4°F).

Heat index

The average heat index in December is appraised at a fiery hot 37°C (98.6°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Consider that heat index readings are for situations in the shade and light wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. 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 are especially vital to 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.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In December, the average relative humidity is 69%.

Rainfall

In Las Flores, in December, it is raining for 2.8 days, with typically 6mm (0.24") of accumulated precipitation. In Las Flores, during the entire year, the rain falls for 196.7 days and collects up to 1216mm (47.87") of precipitation.

Daylight

With an average of 11h and 18min 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 17:27. On the last day of December, sunrise is at 06:19 and sunset at 17:39 CST.

Sunshine

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

UV index

May through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 6 in December interprets into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.