December weather forecast
Tonacatepeque, El Salvador

December, the first month of the winter in Tonacatepeque, is still a hot month, with an average temperature ranging between min 19.1°C (66.4°F) and max 30.8°C (87.4°F).

Temperature

Tonacatepeque's transition from November to December introduces an average high-temperature of a still hot 30.8°C (87.4°F), marking an insignificant variation from the 30.3°C (86.5°F). During December nights, Tonacatepeque records an average temperature of 19.1°C (66.4°F).

Heat index

The heat index value for December is estimated at a fiery hot 37°C (98.6°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In December, the average relative humidity is 69%.

Rainfall

In Tonacatepeque, in December, it is raining for 2.8 days, with typically 6mm (0.24") of accumulated precipitation. In Tonacatepeque, 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 06:04 and sunset at 17:26. On the last day of December, in Tonacatepeque, 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 estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A typical high UV index of 6 in December suggests the following recommendations:
Deflect overexposure. Sun protection is a necessity. 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. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.