December weather forecast
Salalah, Oman

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Weather in December

Salalah graces the end of the year with remarkably stable and moderate weather in December. The pleasantness continues with stable temperatures and lower humidity. Reduced rainfall and sea temperatures provide respite to locals and tourists. The winter sun, with 9.6 hours of sunshine, characterizes the daytime. The recorded rainfall of 1mm (0.04") over a day marks this as the second least rainy period after April.

Temperature

The onset of December notes an average high-temperature of a warm 28.7°C (83.7°F), subtly shifted from November's 30.8°C (87.4°F). The low-temperature averages to a refreshing 18.8°C (65.8°F) during the nights of December.

Heat index

In December, the average heat index is computed to be 29°C (84.2°F). If one remains active during constant exposure, it might cause exhaustion and heat cramps.
Know that the heat index computations account for shaded terrains and slight winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

January and December, with an average relative humidity of 50%, are the least humid months in Salalah, Oman.

Rainfall

December is the month with the least rainfall in Salalah, with 1mm (0.04") of accumulated precipitation.

Sea temperature

In December, the average sea temperature in Salalah, Oman, is 26°C (78.8°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

With an average of 11h and 6min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:37 and sunset at 17:48. On the last day of December, in Salalah, sunrise is at 06:52 and sunset at 18:00 +04.

Sunshine

In Salalah, the average sunshine in December is 9.6h.

UV index

With an average maximum UV index of 8, December is the month with the lowest UV index in Salalah. A UV Index of 8 to 10 symbolizes a very high health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 8 during December morphs into the following directions:
Being unprotected puts skin and eyes at risk of rapid damage. Always be safe. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be wary! Reflections from sand and water make UV radiation more intense.

Frequently asked questions

How hot is December in Salalah?

The average high-temperature, in December, in Salalah, is 28.7°C (83.7°F), while the average low-temperature is 18.8°C (65.8°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in December is computed to be 29°C (84.2°F).

What is the least humid month in Salalah?

The months with the lowest humidity are January and December, with an average relative humidity of 50%.

What is the average humidity in December in Salalah?

In Salalah, the average relative humidity in December is 50%.

What is the driest month in Salalah?

December is the month with the least rainfall in Salalah, with 1mm (0.04") of accumulated precipitation.

How much does it rain in Salalah in December?

During December, Salalah regularly aggregates up to 1mm (0.04") of precipitation.

What is the sea water temperature in December in Salalah?

In December, the average sea temperature in Salalah is 26°C (78.8°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the month with the shortest days in Salalah?

With an average of 11h and 6min of daylight, December has the shortest days of the year.

How many hours of daylight does Salalah have in December?

In Salalah, Oman, the average day length in December is 11h and 8min.

When is the sunrise / sunset in December in Salalah?

In December, on the first day of the month, sunrise is at 06:37 and sunset at 17:48. On the last day of the month, in Salalah, Oman, sunrise is at 06:52 and sunset at 18:00 +04.

How long on average sun shines in December in Salalah?

In December, the average sunshine duration in Salalah is 9.6h.

What is the month with the lowest UV index in Salalah?

December is the month with the lowest UV index in Salalah, Oman, with an average maximum UV index of 8.

What is the UV index reading in December in Salalah?

In Salalah, the average daily maximum UV index in December is 8. A UV Index reading of 8 to 10 represents a very high health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in December
Salalah, Oman

Average temperature in December - Salalah, Oman
  • Average high temperature in December: 28.7°C

The warmest month (with the highest average high temperature) is May (32.4°C).
The month with the lowest average high temperature is August (27.3°C).

  • Average low temperature in December: 18.8°C

The month with the highest average low temperature is June (26.5°C).
The coldest month (with the lowest average low temperature) is January (17.9°C).

Average humidity in December
Salalah, Oman

Average humidity in December - Salalah, Oman
  • Average humidity in December: 50%

The month with the highest relative humidity is August (90%).
The months with the lowest relative humidity are January and December (50%).

Average rainfall in December
Salalah, Oman

Average rainfall in December - Salalah, Oman
  • Average rainfall in December: 1.1mm

The wettest month (with the highest rainfall) is July (24.6mm).
The driest month (with the least rainfall) is December (1.1mm).

Average rainfall days in December
Salalah, Oman

Average rainfall days in December - Salalah, Oman
  • Average rainfall days in December: 0 days

The month with the highest number of rainy days is August (15 days).
The months with the least rainy days are April, October, November and December (0 days).

Average sea temperature in December
Salalah, Oman

Average sea temperature in December - Salalah, Oman
  • Average sea temperature in December: 26°C

The best month for swimming (with the highest average sea temperature) is May (29.1°C).
The coldest month (with the lowest average sea temperature) is August (24.3°C).

Average daylight in December /
Average sunshine in December
Salalah, Oman

Average daylight in December / Average sunshine in December - Salalah, Oman
  • Average daylight in December: 11h and 1min

The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 6min).

  • Average sunshine in December: 9h and 4min

The month with the most sunshine is May (Average sunshine: 10h and 48min).
The months with the least sunshine are July and August (Average sunshine: 1h and 24min).

Average UV index in December
Salalah, Oman

Average UV index in December - Salalah, Oman
  • Average UV index in December: 8

The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).

Salalah, Oman

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