December weather forecast
Oratorio de Concepción, El Salvador

The first month of the winter, December, is also a hot month in Oratorio de Concepción, El Salvador, with temperature in the range of an average high of 30.8°C (87.4°F) and an average low of 19.1°C (66.4°F).

Temperature

The advent of December sees the average high-temperature at a still hot 30.8°C (87.4°F), subtly shifted from November's 30.3°C (86.5°F). An average low-temperature of 19.1°C (66.4°F) is noted during the month of December.

Heat index

The heat index value for December is computed to be a sweltering 37°C (98.6°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Given the heat index, its values are aligned with shaded sites and gentle winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical 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.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In December, the average relative humidity in Oratorio de Concepción is 69%.

Rainfall

In December, the rain falls for 2.8 days. Throughout December, 6mm (0.24") of precipitation is accumulated. In Oratorio de Concepción, during the entire year, the rain falls for 196.7 days and collects up to 1216mm (47.87") of precipitation.

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 06:04 and sunset at 17:26. On the last day of December, in Oratorio de Concepción, sunrise is at 06:19 and sunset at 17:39 CST.

Sunshine

The months with the least sunshine in Oratorio de Concepción, El Salvador, are January and December, with an average of 7.7h of sunshine.

UV index

The months with the lowest UV index in Oratorio de Concepción are May through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A typical high UV index of 6 in December suggests the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.