December weather forecastMação, Portugal

December

Weather in December

December, the first month of the winter in Mação, is still a mild month, with temperature in the range of an average high of 14.2°C (57.6°F) and an average low of 6.6°C (43.9°F).

Temperature

Mação's weather, upon December's arrival, documents an average high-temperature of a mild 14.2°C (57.6°F), nearly identical to the prior month. Throughout the month of December, Mação witnesses an average low-temperature of 6.6°C (43.9°F).

Humidity

The average relative humidity in December is 78%.

Rainfall

In Mação, during December, the rain falls for 8.3 days and regularly aggregates up to 42mm (1.65") of precipitation. Throughout the year, there are 84.9 rainfall days, and 277mm (10.91") of precipitation is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 07:33 and sunset at 17:08. On the last day of the month, sunrise is at 07:52 and sunset at 17:18 WET.

Sunshine

The average sunshine in December is 5.7h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the UV index of 3 transforms into the following advice:
Guard yourself - Precautionary measures against sun damage are advocated. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Updated: Aug 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Mação, 14.2°C (57.6°F) is the average high-temperature and 6.6°C (43.9°F) is the average low-temperature during December. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in September is appraised at 31°C (87.8°F).

The average relative humidity in December is 78%.

In Mação, in December, during 8.3 rainfall days, 42mm (1.65") of precipitation is typically accumulated.

The month with the shortest days is December, with an average of 9h and 24min of daylight.

In Mação, the average day length in December is 9h and 26min.

On the first day of December, sunrise is at 07:33 and sunset at 17:08. On the last day of the month, sunrise is at 07:52 and sunset at 17:18 WET.

In December, the average sunshine duration in Mação is 5.7h.

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.

The average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

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

Nov

December

Jan

Average high temperature

16.4°C

14.2°C

13.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

11.9km/h

11.5km/h

11.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

17.9

21.6

21.1

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Mação, Portugal

Average high temperature in December: 14.2°C

The warmest month (with the highest average high temperature) is August (32.7°C).
The month with the lowest average high temperature is January (13.3°C).

Average low temperature in December: 6.6°C

The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is January (5.7°C).

Average pressure in December
Mação, Portugal

Average pressure in December: 1022.8mbar

The month with the highest atmospheric pressure is December (1022.8mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).

Average wind speed in December
Mação, Portugal

Average wind speed in December: 10.7km/h

The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is September (9.8km/h).

Average humidity in December
Mação, Portugal

Average humidity in December: 78%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (55%).

Average rainfall in December
Mação, Portugal

Average rainfall in December: 42mm

The wettest month (with the highest rainfall) is November (50mm).
The driest months (with the least rainfall) are July and August (3mm).

Average rainfall days in December
Mação, Portugal

Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is November (11.2 days).
The month with the least rainy days is August (1.6 days).

Average daylight in December /
Average sunshine in December
Mação, Portugal

Average daylight in December: 9h and 24min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

Average sunshine in December: 5h and 42min

The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in December
Mação, Portugal

Average sunshine days in December: 21.6 days

The months with the most sunshine days are July and August (28.7 days).
The month with the least sunshine days is November (17.9 days).

Average UV index in December
Mação, Portugal

Average UV index in December: 3

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).