December winds up the year with a climatic confluence of cooling temperatures and diminished rainfall. It exhibits the coolest temperature reading, dropping to 20.2°C (68.4°F), shaping a subtle sense of winter in
Boca de Cachón. Comparatively, with just 19mm (0.75") of rain accumulated, December can easily claim the crown for the driest month of the year. The weather reflects an ambiance of relief mixed with joyous holiday spirits, closing Boca de Cachón’s weather catalogue with charm and melody.
Temperature
Boca de Cachón,
Dominican Republic, transitions into December recording an average high-temperature of a still hot 32.2°C (90°F), closely aligning with the preceding month's temperature. Boca de Cachón, amidst the high December temperatures, experiences a substantial shift to an average nighttime low of 20.2°C (68.4°F).
Heat index
The average heat index in December is calculated to be a very hot 39°C (102.2°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital 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.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.
Humidity
The average relative humidity in December in Boca de Cachón is 64.1%.
Rainfall
In Boca de Cachón, during December, the rain falls for 1.5 days and regularly aggregates up to 19mm (0.75") of precipitation. Throughout the year, there are 57.8 rainfall days, and 729mm (28.7") of precipitation is accumulated.
Daylight
The month with the shortest days is December, with an average of 11h and 0min of daylight.
On the first day of December in Boca de Cachón, sunrise is at 07:03 and sunset at 18:09. On the last day of the month, sunrise is at 07:19 and sunset at 18:21 AST.