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

At the onset of December, Cojutepeque records an average high-temperature of a still tropical 30.8°C (87.4°F), showing little deviation from the preceding month. With a notable disparity from daily peak temperatures, the average low-temperature settles at a refreshing 18.6°C (65.5°F) throughout December.

Heat index

The heat index for December is estimated at a fiery hot 37°C (98.6°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

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

Rainfall

In December, the rain falls for 3.3 days. Throughout December, 5mm (0.2") of precipitation is accumulated. In Cojutepeque, during the entire year, the rain falls for 192.2 days and collects up to 1062mm (41.81") of precipitation.

Daylight

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

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 of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 6 in December leads to these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun.