December weather forecast
Cojutepeque, El Salvador

December concludes the year with the return of dry and sunny conditions, closely mirroring January weather. The month takes a cooler turn with temperatures ranging between 18.6°C (65.5°F) and 30.8°C (87.4°F). The wind speed increases to its yearly peak of 7km/h (4.3mph), adding a fresh crispness to the air. To sum up, Cojutepeque rounds off the year with a perfect balance of sunshine, cool air, and minimal rain.

Temperature

Cojutepeque, El Salvador, records a slight change with December's average high-temperatures adjusting to a still tropical 30.8°C (87.4°F) from November's 30.5°C (86.9°F). Cojutepeque sees a consistent average low-temperature of 18.6°C (65.5°F) in December, indicating a substantial decrease from the day's temperature.

Heat index

The heat index value for December is calculated to be a torrid 37°C (98.6°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In Cojutepeque, the average relative humidity in December is 69%.

Rainfall

In Cojutepeque, during December, the rain falls for 3.3 days and regularly aggregates up to 5mm (0.2") of precipitation. Throughout the year, in Cojutepeque, El Salvador, there are 192.2 rainfall days, and 1062mm (41.81") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 11h and 18min of daylight.
On the first day of the month, sunrise is at 06:03 and sunset at 17:26. On the last day of December, in Cojutepeque, 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 in Cojutepeque, El Salvador.

UV index

The months with the lowest UV index in Cojutepeque are January, June through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 6 in December translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.