Riyadh
Saudi Arabia
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Riyadh, Saudi Arabia

A view of the Olaya street metro construction and cars in a traffic jam in the city of Riyadh, Saudi Arabia, viewed from above, at night
A view of the Olaya street metro construction and cars in a traffic jam in the city of Riyadh, Saudi Arabia, viewed from above, at night
January, the same as December, in Riyadh, Saudi Arabia, is another pleasant winter month, with average temperature fluctuating between 9°C (48.2°F) and 20.2°C (68.4°F).

Temperature

January is the coldest month, with an average high-temperature of 20.2°C (68.4°F) and an average low-temperature of 9°C (48.2°F).

Humidity

Months with the highest humidity are January and December, with an average relative humidity of 47%.

Rainfall

In Riyadh, during January, the rain falls for 6.1 days and regularly aggregates up to 11.9mm (0.5") of precipitation. In Riyadh, during the entire year, the rain falls for 44.8 days and collects up to 92.5mm (3.6") of precipitation.

Daylight

In Riyadh, the average length of the day in January is 10.8h.

Sunshine

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

UV index

In January, the average daily maximum UV index in Riyadh is 6. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. 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.

What is the coldest month in Riyadh?

With an average high-temperature of 20.2°C (68.4°F) and an average low-temperature of 9°C (48.2°F), January is the coldest month in Riyadh.

What is the temperature in January in Riyadh?

In Riyadh, Saudi Arabia, in January, the average high-temperature is 20.2°C (68.4°F), and the average low-temperature is 9°C (48.2°F).

What is the most humid month in Riyadh?

January and December, with an average relative humidity of 47%, are most humid months in Riyadh, Saudi Arabia.

What is the average humidity in January in Riyadh?

In January, the average relative humidity in Riyadh, Saudi Arabia, is 47%.

How many days does it rain in January in Riyadh?

In Riyadh, in January, it is raining for 6.1 days, with typically 11.9mm (0.5") of accumulated precipitation.

How many hours of daylight does Riyadh have in January?

The average length of the day in January in Riyadh, Saudi Arabia, is 10.8h.

What is the month with the least sunshine in Riyadh?

Months with the least sunshine in Riyadh, Saudi Arabia, are January and December, with an average of 6.9h of sunshine.

How many hours of sunshine does Riyadh have in January?

In Riyadh, the average sunshine in January is 6.9h.

What is the UV index intensity in January in Riyadh?

In January, the average daily maximum UV index in Riyadh, Saudi Arabia, is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in January - Riyadh, Saudi Arabia
  • Average high temperature in January: 20.2°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 January: 9°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).

Average humidity in January - Riyadh, Saudi Arabia
  • Average humidity in January: 47%

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

Average rainfall in January - Riyadh, Saudi Arabia
  • Average rainfall in January: 11.9mm

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

Average rainfall days in January - Riyadh, Saudi Arabia
  • Average rainfall days in January: 6.1 days

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

Average daylight in January / Average sunshine in January - Riyadh, Saudi Arabia
  • Average daylight in January: 10.8h

The month with the longest days is June (Average daylight: 13.7h).
The month with shortest days is December (Average daylight: 10.6h).

  • Average sunshine in January: 6.9h

The month with most sunshine is June (Average sunshine: 10.9h).
Months with least sunshine are January and December (Average sunshine: 6.9).

Average UV index in January - Riyadh, Saudi Arabia
  • Average UV index in January: 6

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).