December weather forecast
La Palma, El Salvador

December records the lowest rainfall figures for the year at only 5mm (0.2"). The year concludes with the driest month, offering the most favorable conditions for outdoor activities. With the least rainfall and more sunlight, La Palma's weather in December is perfect for enjoying both city activities and nature explorations. Despite being the coolest month, a UV index of 6 reminds that sun protection is key throughout the year.

Temperature

December brings an average high-temperature of a still moderately hot 28.4°C (83.1°F) in La Palma, showing a slight difference from November's 28°C (82.4°F). La Palma's nighttime temperature during December is consistently averaged at an enjoyable 16.6°C (61.9°F).

Heat index

The heat index for December is evaluated at a tropical 32°C (89.6°F). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.
For clarity, heat index numbers account for light winds and areas under shade. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

In La Palma, the average relative humidity in December is 74%.

Rainfall

In December, in La Palma, the rain falls for 2.3 days. Throughout December, 5mm (0.2") of precipitation is accumulated. In La Palma, during the entire year, the rain falls for 181.9 days and collects up to 1094mm (43.07") 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 17:26. On the last day of December, sunrise is at 06:21 and sunset at 17:38 CST.

Sunshine

In December, the average sunshine in La Palma 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. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 6 in December interprets into the following advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.