December weather forecast
Sumba, Faroe Islands

December

Weather in December

Towards the year-end, December brings in the full force of winter in Sumba. The weather in December is characterized by plummeting temperatures, which average around 7.4°C (45.3°F). Short days, high humidity, and low temperatures create an atmosphere of a typical chilly winter day. Cloud cover, coupled with reduced sunlight hours, lead to mostly greyish hue days. Despite the cold winds and lower daylight hours, Sumba is lifted by the spirit of the approaching holiday season.

Temperature

In December, Sumba experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 8.5°C (47.3°F) in November to a still chilly 7.4°C (45.3°F). December nights reveal a minor deviation from daytime highs, with a mean low-temperature of 5.3°C (41.5°F).

Humidity

The months with the lowest humidity are January, February and December, with an average relative humidity of 75%.

Rainfall

The month with the most rainfall is December, when the rain falls for 23.9 days and typically aggregates up to 97mm (3.82") of precipitation.

Snowfall

Months with snowfall are January through May, September, November and December. In Sumba, in December, during 1 snowfall days, 1mm (0.04") of snow is typically accumulated. In Sumba, during the entire year, snow falls for 10.9 days and aggregates up to 50mm (1.97") of snow.

Daylight

The month with the shortest days is December, with an average of 5h and 36min of daylight.
On the first day of December, sunrise is at 09:15 and sunset at 15:16. On the last day of the month, sunrise is at 09:43 and sunset at 15:17 WET.

Sunshine

The average sunshine in December is 2.5h.

UV index

The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 2 suggests this advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.

Frequently asked questions

What is the temperature in December?
In December, in Sumba, the average high-temperature is 7.4°C (45.3°F), and the average low-temperature is 5.3°C (41.5°F).
What is the least humid month?
January, February and December, with an average relative humidity of 75%, are the least humid months.
What is the average humidity in December?
In Sumba, the average relative humidity in December is 75%.
What is the wettest month in Sumba?
December is the month with the most rainfall. Rain falls for 23.9 days and accumulates 97mm (3.82") of precipitation.
How much does it rain in December?
In Sumba, during December, the rain falls for 23.9 days and regularly aggregates up to 97mm (3.82") of precipitation.
How many days does it snow in December?
In Sumba, in December, snow falls for 1 days, with typically accumulated 1mm (0.04") of snow.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 5h and 36min of daylight.
How many hours of daylight does Sumba have in December?
The average day length in December is 5h and 34min.
When is the sunrise / sunset in December?
On the first day of December, sunrise is at 09:15 and sunset at 15:16. On the last day of the month, sunrise is at 09:43 and sunset at 15:17 WET.
How many hours of sunshine does Sumba have in December?
In December, the average sunshine duration is 2.5h.
What is the month with the lowest UV index?
January through April, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
How high is the UV index in December?
In Sumba, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Sumba, Faroe Islands
Average temperature in December
Sumba, Faroe Islands
  • Average high temperature in December: 7.4°C

The warmest month (with the highest average high temperature) is August (12°C).
The month with the lowest average high temperature is March (7.1°C).

  • Average low temperature in December: 5.3°C

The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is March (5°C).

Average pressure in December - Sumba, Faroe Islands
Average pressure in December
Sumba, Faroe Islands
  • Average pressure in December: 1000.3mbar

The month with the highest atmospheric pressure is June (1014.3mbar).
The month with the lowest atmospheric pressure is December (1000.3mbar).

Average wind speed in December - Sumba, Faroe Islands
Average wind speed in December
Sumba, Faroe Islands
  • Average wind speed in December: 40.5km/h

The windiest month (with the highest average wind speed) is January (40.6km/h).
The calmest month (with the lowest average wind speed) is June (23.6km/h).

Average humidity in December - Sumba, Faroe Islands
Average humidity in December
Sumba, Faroe Islands
  • Average humidity in December: 75%

The month with the highest relative humidity is July (89%).
The months with the lowest relative humidity are January, February and December (75%).

Average rainfall in December - Sumba, Faroe Islands
Average rainfall in December
Sumba, Faroe Islands
  • Average rainfall in December: 97mm

The wettest month (with the highest rainfall) is December (97mm).
The driest month (with the least rainfall) is June (28mm).

Average rainfall days in December - Sumba, Faroe Islands
Average rainfall days in December
Sumba, Faroe Islands
  • Average rainfall days in December: 23.9 days

The month with the highest number of rainy days is November (24.1 days).
The month with the least rainy days is June (13.8 days).

Average snowfall in December - Sumba, Faroe Islands
Average snowfall in December
Sumba, Faroe Islands
  • Average snowfall in December: 1mm

The month with the highest snowfall is March (15mm).
The months with the least snowfall are June, July, August and October (0mm).

Average snowfall days in December - Sumba, Faroe Islands
Average snowfall days in December
Sumba, Faroe Islands
  • Average snowfall days in December: 1 days

The month with the highest number of snowfall days is March (2.6 days).
The months with the least snowfall days are June, July, August and October (0 days).

Average daylight in December / Average sunshine in December - Sumba, Faroe Islands
Average daylight in December /
Average sunshine in December
Sumba, Faroe Islands
  • Average daylight in December: 5h and 4min

The month with the longest days is June (Average daylight: 19h and 18min).
The month with the shortest days is December (Average daylight: 5h and 36min).

  • Average sunshine in December: 2h and 3min

The month with the most sunshine is June (Average sunshine: 8h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).

Average sunshine days in December - Sumba, Faroe Islands
Average sunshine days in December
Sumba, Faroe Islands
  • Average sunshine days in December: 3.5 days

The month with the most sunshine days is June (13 days).
The month with the least sunshine days is December (3.5 days).

Average UV index in December - Sumba, Faroe Islands
Average UV index in December
Sumba, Faroe Islands
  • Average UV index in December: 2

The months with the highest UV index are May, June, July, August, September and October (UV index 3).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).

Average cloud cover in December - Sumba, Faroe Islands
Average cloud cover in December
Sumba, Faroe Islands
  • Average cloud cover in December: 67

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 62).

Average visibility in December - Sumba, Faroe Islands
Average visibility in December
Sumba, Faroe Islands
  • Average visibility in December: 9km

The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).

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