December weather forecast
Escuintla, Guatemala

Finally, December brings with it a full transition to the dry season in Escuintla, with a significant drop in rainfall to an annual low of 6mm (0.24"). The city witnesses a dip in temperature compared to November, ensuring a mild environment as the year concludes. Despite the decrease in temperatures, the relatively clear skies ensure a generous amount of sunshine. This combined with balanced wind conditions, continues to make outdoor activities enjoyable. As the city rings in the holiday season, the warm and dry weather of December forms a welcoming atmosphere for residents and visitors alike.

Temperature

Escuintla's weather, upon December's arrival, documents an average high-temperature of a still warm 28.6°C (83.5°F), nearly identical to the prior month. During December, the nighttime temperature averages to a comfortable 17.3°C (63.1°F).

Heat index

In December, the average heat index is calculated to be a hot 31°C (87.8°F). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially vital to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.

Humidity

In December, the average relative humidity is 67%.

Rainfall

In Escuintla, in December, during 6.7 rainfall days, 6mm (0.24") of precipitation is typically accumulated. In Escuintla, during the entire year, the rain falls for 228.7 days and collects up to 1368mm (53.86") 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 06:12 and sunset at 17:32. On the last day of December, sunrise is at 06:27 and sunset at 17:45 CST.

Sunshine

December has the least sunshine of the year, with an average of 7.6h of sunshine.

UV index

January through December, with an average maximum UV index of 6, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In December, a regular UV index of 6 translates into these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.