December Weather forecast - Winter forecast

Weather in December
Frequently asked questions
Average temperature in December
Average humidity in December
Average rainfall in December
Average rainfall days in December
Average daylight in December
Average sunshine in December
Average UV index in December

The Olaya street metro construction and cars in a traffic jam in the city of Riyadh, Saudi Arabia

Weather in December

The first month of the winter, December, is still a pleasant month in Riyadh, Saudi Arabia, with temperature in the range of an average high of 22.2°C (72°F) and an average low of 10.6°C (51.1°F).

Temperature

In December, the average high-temperature decreases from a warm 27.8°C (82°F) in November to an agreeable 22.2°C (72°F). In Riyadh, the average low-temperature is 10.6°C (51.1°F).

Humidity

January and December, with an average relative humidity of 47%, are the most humid months.

Rainfall

In Riyadh, Saudi Arabia, during 6.3 rainfall days, 15mm (0.59") of precipitation is typically accumulated. In Riyadh, during the entire year, the rain falls for 44.8 days and collects up to 93mm (3.66") of precipitation.

Daylight

With an average of 10h and 38min of daylight, December has the shortest days of the year.
On the first day of December in Riyadh, sunrise is at 06:20 and sunset at 17:03. On the last day of the month, sunrise is at 06:37 and sunset at 17:15 +03.

Sunshine

The months with the least sunshine in Riyadh are January and December, with an average of 6.9h of sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in December interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

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FAQ

What is the temperature in December in Riyadh?

The average high-temperature, in December, is 22.2°C (72°F), while the average low-temperature is 10.6°C (51.1°F).

What are the most humid months in Riyadh?

The months with the highest humidity in Riyadh are January and December, with an average relative humidity of 47%.

What is the average humidity in December in Riyadh?

In December, the average relative humidity is 47%.

How many days does it rain in December in Riyadh?

In Riyadh, in December, it is raining for 6.3 days, with typically 15mm (0.59") of accumulated precipitation.

What is the month with the shortest days in Riyadh?

With an average of 10h and 38min of daylight, December has the shortest days of the year in Riyadh.

How many hours of daylight does Riyadh have in December?

In December, the average day length in Riyadh is 10h and 38min.

When is the sunrise / sunset in December in Riyadh?

In December, on the first day of the month, sunrise is at 06:20 and sunset at 17:03. On the last day of the month, sunrise is at 06:37 and sunset at 17:15 +03.

What is the month with the least sunshine in Riyadh?

The months with the least sunshine in Riyadh are January and December, with an average of 6.9h of sunshine.

How long on average sun shines in December in Riyadh?

In Riyadh, the average sunshine duration in December is 6.9h.

When is the lowest UV index in Riyadh?

The month with the lowest UV index is December, with an average maximum UV index of 5.

What is the UV index reading in December in Riyadh?

The average daily maximum UV index in December is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

27.8°C 82°F

22.2°C 72°F

20.2°C 68.4°F

Average low temperature

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average UV index

Average temperature in December
Riyadh, Saudi Arabia

Average high temperature in December: 22.2°C

The warmest month (with the highest average high temperature) is August (43.6°C).
The month with the lowest average high temperature is January (20.2°C).

Average low temperature in December: 10.6°C

The month with the highest average low temperature is July (29.3°C).
The coldest month (with the lowest average low temperature) is January (9°C).

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Average humidity in December
Riyadh, Saudi Arabia

Average humidity in December: 47%

The months with the highest relative humidity are January and December (47%).
The month with the lowest relative humidity is July (10%).

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Average rainfall in December
Riyadh, Saudi Arabia

Average rainfall in December: 14.6mm

The wettest month (with the highest rainfall) is April (23.8mm).
The driest months (with the least rainfall) are June, July and September (0mm).

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Average rainfall days in December
Riyadh, Saudi Arabia

Average rainfall days in December: 6.3 days

The month with the highest number of rainy days is April (11.3 days).
The months with the least rainy days are June and September (0 days).

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Average daylight in December /
Average sunshine in December
Riyadh, Saudi Arabia

Average daylight in December: 10h and 38min

The month with the longest days is June (Average daylight: 13h and 39min).
The month with the shortest days is December (Average daylight: 10h and 38min).

Average sunshine in December: 6h and 54min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 54min).

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Average UV index in December
Riyadh, Saudi Arabia

Average UV index in December: 5

The months with the highest UV index are April, May, June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 5).

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December weather forecast
Riyadh, Saudi Arabia

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