December weather forecast
San Sebastian Salitrillo, El Salvador

December continues the declining trend in precipitation levels, reducing further to an average of 5mm (0.2"), in San Sebastian Salitrillo, marking a definitive conclusion to the wet season. With the lowering humidity levels, a comfortable and agreeable climate ensues, rendering the city ideal for visitors seeking a winter escape. Complementing the latter part of the year, it brings in settled weather patterns, providing a delightful respite from the previous wetter months. Pleasant breezes accompanied by bright sunshine render the weather ideal for exploration activities. Consequently, December anchors the year with some of the finest weather conditions San Sebastian Salitrillo has to offer.

Temperature

San Sebastian Salitrillo records an average high-temperature of a still moderately hot 28.4°C (83.1°F) in December, maintaining a close correlation with November's 28°C (82.4°F). During the month of December, the nighttime temperature in San Sebastian Salitrillo falls to an average of 16.6°C (61.9°F).

Heat index

The heat index for December is evaluated at a hot 32°C (89.6°F). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

In December, the average relative humidity is 74%.

Rainfall

In San Sebastian Salitrillo, El Salvador, in December, it is raining for 2.3 days, with typically 5mm (0.2") of accumulated precipitation. Throughout the year, in San Sebastian Salitrillo, there are 181.4 rainfall days, and 1055mm (41.54") of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 11h and 18min of daylight.
On the first day of the month, sunrise is at 06:07 and sunset at 17:28. On the last day of December, sunrise is at 06:22 and sunset at 17:41 CST.

Sunshine

The average sunshine in December in San Sebastian Salitrillo is 7.6h.

UV index

January through August, October through December, with an average maximum UV index of 6, are months with the highest UV index in San Sebastian Salitrillo. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: A daily maximum UV index of 6 in December translates into the following instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.