December weather forecast
Santo Domingo, Panama

December, the first month of the winter in Santo Domingo, is a hot month, with an average temperature varying between 21.4°C (70.5°F) and 30.3°C (86.5°F).

Temperature

The introduction of December sees an average high-temperature of a tropical 30.3°C (86.5°F), hardly deviating from November. An average low-temperature of 21.4°C (70.5°F) is anticipated throughout the nights during December.

Heat index

December's heat index is calculated to be a blistering 40°C (104°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In Santo Domingo, the average relative humidity in December is 83%.

Rainfall

In Santo Domingo, in December, it is raining for 20.6 days, with typically 121mm (4.76") of accumulated precipitation. Throughout the year, there are 269.3 rainfall days, and 2235mm (87.99") of precipitation is accumulated.

Daylight

With an average of 11h and 42min of daylight, December has the shortest days of the year.
On the first day of December in Santo Domingo, sunrise is at 06:19 and sunset at 18:01. On the last day of the month, sunrise is at 06:33 and sunset at 18:14 EST.

Sunshine

The average sunshine in December is 8.8h.

UV index

July, August, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 6 translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. 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. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.