December weather forecast
Nuevo Cuscatlán, El Salvador

Rounding off the year, December in Nuevo Cuscatlán sees a significant decline in rainfall and a consistent mild temperature. Reflecting the calm weather of January, in December, this El Salvadorian city shines in full glory with ample sunshine days. Despite being the end of the year, December does not bring an extreme dip in temperatures. The city concludes the year by offering a monthly rainfall low of only 0.16". With the rain clouds finally at bay, the year-end is a cheerful event, honoring the warm weather typical for this location.

Temperature

The high-temperature average in December for Nuevo Cuscatlán is a still warm 85.8°F, staying consistent with the climate of the preceding month. An average low-temperature of 67.1°F is recorded during the nights in December.

Heat index

Throughout December, the heat index is computed to be a very hot 95°F. Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, 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 especially crucial for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The average relative humidity in December in Nuevo Cuscatlán is 70%.

Rainfall

In December, the rain falls for 2.3 days. Throughout December, 0.16" of precipitation is accumulated. In Nuevo Cuscatlán, during the entire year, the rain falls for 187 days and collects up to 43.54" 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 the month, sunrise is at 06:05 and sunset at 17:27. On the last day of December, sunrise is at 06:20 and sunset at 17:40 CST.

Sunshine

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

UV index

January, May, June, August 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 risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 in December interprets into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Enhance your sun protection with tightly woven, yet airy clothing.