December weather forecast
Dededo, GU

December brings the year to a close, with temperatures dropping marginally from 83.5°F (28.6°C) to 82°F (27.8°C) and rainfall coming down to 2.99" (76mm). A festive atmosphere engulfs Dededo during these months, with the relatively cooler climate contributing to the cheer. The pacific winds gain a bit of momentum adding to the sense of comfortable coolness. December is an excellent time for water-sports enthusiasts who enjoy the blend of cooler temperatures and fair winds. With the holiday season in full swing, Dededo's December is an experience in and of itself.

Temperature

December welcomes an average high-temperature of a still warm 83.5°F (28.6°C), not much different from the preceding month. Throughout December, a modest shift from daytime highs is anticipated, with an average low-temperature of 82°F (27.8°C).

Heat index

During December, the heat index is evaluated at a hot 91.4°F (33°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

The months with the highest humidity are January, March through May, October through December, with an average relative humidity of 78%.

Rainfall

In Dededo, in December, it is raining for 22.8 days, with typically 2.99" (76mm) of accumulated precipitation. Throughout the year, there are 288.5 rainfall days, and 60.08" (1526mm) of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 11h and 18min of daylight.
On the first day of December, sunrise is at 6:28 am and sunset at 5:51 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:03 pm ChST.

Sunshine

In Dededo, the average sunshine in December is 6.5h.

UV index

The months with the highest UV index are January through August, October through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: In December, an average UV index of 7 transforms into the following instructions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.