December weather forecast
Thuwal, Saudi Arabia

In December, Thuwal, Saudi Arabia marks the arrival of its winter season. Compared to the high temperatures in the preceding months, December offers a refreshing change. Humidity levels stay consistent, providing a pleasant backdrop for holiday activities. Rainfall sees a sharp decrease from November to a lowered 16mm (0.63"), retaining some aridity. The longer nights lend to the festive season as the city lights up in celebration. This year-end month promises comfortable temperatures coupled with the holiday spirit prevalent in the town.

Temperature

A minor adjustment in Thuwal's average high-temperature is noted with the start of December, touching a warm 28.6°C (83.5°F) from November's 31.2°C (88.2°F). The low temperature average during December reflects a slight decrease to 24.3°C (75.7°F) from the day's peak.

Heat index

The heat index value for December is computed to be a tropical 30°C (86°F). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. 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 quite important for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

In December, the average relative humidity is 57%.

Rainfall

In Thuwal, Saudi Arabia, during December, the rain falls for 6 days and regularly aggregates up to 16mm (0.63") of precipitation. In Thuwal, during the entire year, the rain falls for 30.5 days and collects up to 77mm (3.03") of precipitation.

Daylight

December has the shortest days of the year, with an average of 10h and 48min of daylight.
On the first day of the month, sunrise is at 06:46 and sunset at 17:38. On the last day of December, sunrise is at 07:02 and sunset at 17:50 +03.

Sunshine

With an average of 7.3h of sunshine, December has the least sunshine of the year.

UV index

January and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 6 in December interprets into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Boost your sun resistance with garments that are densely woven yet spacious.