December weather forecast
Alas, East Timor

December

Weather in December

December differs significantly compared to the previous month by showcasing a higher rainfall of 172mm (6.77"). This month reflects the typical monsoon climate in Alas, East Timor - significant rainfall, high humidity, and decreased sunshine hours. The month ends the year as it began with heavy monsoon clouds dominating the cityscape. The streets once again drench in nature's abundance, ready to embrace another cycle of varied weather patterns in the year ahead.

Temperature

During December, Alas observes a subtle ascent to a still warm 27.9°C (82.2°F) from November's 28.4°C (83.1°F) in the average high-temperature. A mean low-temperature of 24.7°C (76.5°F) is anticipated during the month of December in Alas, a slight step down from the daytime high.

Heat index

For most parts of December, the heat index is appraised at a hot 31°C (87.8°F). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
One should consider that heat index numbers are for shaded settings and light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. 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

The average relative humidity in December in Alas is 76%.

Rainfall

December is the month with the most rainfall. Rain falls for 28.4 days and accumulates 172mm (6.77") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 36min of daylight.
On the first day of the month, sunrise is at 06:07 and sunset at 18:44. On the last day of December, sunrise is at 06:20 and sunset at 18:59 +09.

Sunshine

In December, the average sunshine is 8.4h.

UV index

The months with the lowest UV index are January, February, June through August and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 6 during December translates into the following guidance:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

What is the temperature in December?
In December, the average high-temperature and low-temperature are 27.9°C (82.2°F) and 24.7°C (76.5°F) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in December is appraised at 31°C (87.8°F).
What is the average humidity in December in Alas?
In December, the average relative humidity is 76%.
What is the rainiest month?
The month with the most rainfall is December, when the rain falls for 28.4 days and typically aggregates up to 172mm (6.77") of precipitation.
How many days does it rain in December?
In Alas, during December, the rain falls for 28.4 days and regularly aggregates up to 172mm (6.77") of precipitation.
When are the longest days?
December has the longest days of the year, with an average of 12h and 36min of daylight.
What is the average length of the day in December?
In December, the average day length is 12h and 38min.
What time are sunrise and sunset in December?
In December, on the first day of the month, sunrise is at 06:07 and sunset at 18:44. On the last day of the month, sunrise is at 06:20 and sunset at 18:59 +09.
How many hours of sunshine does Alas have in December?
The average sunshine duration in December is 8.4h.
What is the month with the lowest UV index?
The months with the lowest UV index are January, February, June through August and December, with an average maximum UV index of 6.
How high is the UV index in December?
In Alas, the average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Alas, East Timor
Average temperature in December
Alas, East Timor
  • Average high temperature in December: 27.9°C

The warmest month (with the highest average high temperature) is October (28.5°C).
The month with the lowest average high temperature is July (26.6°C).

  • Average low temperature in December: 24.7°C

The month with the highest average low temperature is December (24.7°C).
The coldest month (with the lowest average low temperature) is August (22.3°C).

Average pressure in December - Alas, East Timor
Average pressure in December
Alas, East Timor
  • Average pressure in December: 1007.7mbar

The month with the highest atmospheric pressure is August (1012.5mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).

Average wind speed in December - Alas, East Timor
Average wind speed in December
Alas, East Timor
  • Average wind speed in December: 8.1km/h

The windiest month (with the highest average wind speed) is July (12.1km/h).
The calmest month (with the lowest average wind speed) is November (7.1km/h).

Average humidity in December - Alas, East Timor
Average humidity in December
Alas, East Timor
  • Average humidity in December: 76%

The months with the highest relative humidity are January, February and March (79%).
The months with the lowest relative humidity are August and September (69%).

Average rainfall in December - Alas, East Timor
Average rainfall in December
Alas, East Timor
  • Average rainfall in December: 172mm

The wettest month (with the highest rainfall) is December (172mm).
The driest month (with the least rainfall) is August (2mm).

Average rainfall days in December - Alas, East Timor
Average rainfall days in December
Alas, East Timor
  • Average rainfall days in December: 28.4 days

The month with the highest number of rainy days is December (28.4 days).
The month with the least rainy days is August (2.8 days).

Average daylight in December / Average sunshine in December - Alas, East Timor
Average daylight in December /
Average sunshine in December
Alas, East Timor
  • Average daylight in December: 12h and 4min

The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).

  • Average sunshine in December: 8h and 2min

The months with the most sunshine are August and September (Average sunshine: 9h and 54min).
The months with the least sunshine are January and February (Average sunshine: 8h and 6min).

Average sunshine days in December - Alas, East Timor
Average sunshine days in December
Alas, East Timor
  • Average sunshine days in December: 0.8 days

The month with the most sunshine days is August (26.4 days).
The month with the least sunshine days is January (0.6 days).

Average UV index in December - Alas, East Timor
Average UV index in December
Alas, East Timor
  • Average UV index in December: 6

The months with the highest UV index are March, April, May, September, October and November (UV index 7).
The months with the lowest UV index are January, February, June, July, August and December (UV index 6).

Average cloud cover in December - Alas, East Timor
Average cloud cover in December
Alas, East Timor
  • Average cloud cover in December: 37

The months with the most cloud cover are January and February (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 9).

Average visibility in December - Alas, East Timor
Average visibility in December
Alas, East Timor
  • Average visibility in December: 9km

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

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