December weather forecast
Maia, Portugal

December

Weather in December

December is the coldest month and ushers in the crisp winter season in Maia. The city exhibits shorter daylight hours, fewer daily sunshine hours, and increased cloud coverage, resulting in lowered temperatures that reach no more than 13.8°C (56.8°F). Moreover, rainfall becomes a prominent climatic feature of Maia city in December. Despite a surpassing cloud presence and darker days, the city remains engulfed in calm winds and balanced humidity levels.

Temperature

The advent of December denotes an average high-temperature of a still moderate 13.8°C (56.8°F), subtly different from November's 15.4°C (59.7°F). A consistent average low-temperature of 9.5°C (49.1°F), with a minor variance from the daytime highs, is noted in Maia during the nights of December.

Humidity

The average relative humidity in December in Maia, Portugal, is 79%.

Rainfall

In Maia, Portugal, in December, it is raining for 13.7 days, with typically 93mm (3.66") of accumulated precipitation. In Maia, during the entire year, the rain falls for 137.1 days and collects up to 682mm (26.85") of precipitation.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 07:41 and sunset at 17:06. On the last day of the month, sunrise is at 07:59 and sunset at 17:15 WET.

Sunshine

The average sunshine in December is 5.5h.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Maia. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In December, a daily maximum UV index of 3 leads to the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

What is the temperature in December in Maia?
The high-temperature, in December, in Maia, is 13.8°C (56.8°F), while the low-temperature averages to 9.5°C (49.1°F).
What is the average humidity in December in Maia?
In December, the average relative humidity in Maia is 79%.
How much does it rain in Maia in December?
In Maia, in December, during 13.7 rainfall days, 93mm (3.66") of precipitation is typically accumulated.
What is the month with the shortest days in Maia?
December has the shortest days of the year, with an average of 9h and 18min of daylight.
How many hours of daylight does Maia have in December?
In December, the average day length in Maia, Portugal, is 9h and 16min.
What time are sunrise and sunset in December in Maia?
In December, on the first day of the month, sunrise is at 07:41 and sunset at 17:06. On the last day of the month, in Maia, sunrise is at 07:59 and sunset at 17:15 WET.
How many hours of sunshine does Maia have in December?
The average sunshine duration in December in Maia is 5.5h.
What is the month with the lowest UV index in Maia?
The months with the lowest UV index in Maia are January, February, November and December, with an average maximum UV index of 3.
How high is the UV index in December in Maia?
The average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average temperature in December - Maia, Portugal
Average temperature in December
Maia, Portugal
  • Average high temperature in December: 13.8°C

The warmest month (with the highest average high temperature) is August (23.9°C).
The month with the lowest average high temperature is January (12.8°C).

  • Average low temperature in December: 9.5°C

The month with the highest average low temperature is August (16.5°C).
The coldest month (with the lowest average low temperature) is February (8.1°C).

Average pressure in December - Maia, Portugal
Average pressure in December
Maia, Portugal
  • Average pressure in December: 1022.4mbar

The month with the highest atmospheric pressure is December (1022.4mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).

Average wind speed in December - Maia, Portugal
Average wind speed in December
Maia, Portugal
  • Average wind speed in December: 13.5km/h

The windiest months (with the highest average wind speed) are February and November (14.3km/h).
The calmest month (with the lowest average wind speed) is September (10.7km/h).

Average humidity in December - Maia, Portugal
Average humidity in December
Maia, Portugal
  • Average humidity in December: 79%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is September (71%).

Average rainfall in December - Maia, Portugal
Average rainfall in December
Maia, Portugal
  • Average rainfall in December: 93mm

The wettest month (with the highest rainfall) is November (108mm).
The driest month (with the least rainfall) is July (10mm).

Average rainfall days in December - Maia, Portugal
Average rainfall days in December
Maia, Portugal
  • Average rainfall days in December: 13.7 days

The month with the highest number of rainy days is November (16.5 days).
The month with the least rainy days is August (4.6 days).

Average daylight in December / Average sunshine in December - Maia, Portugal
Average daylight in December /
Average sunshine in December
Maia, Portugal
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in December - Maia, Portugal
Average sunshine days in December
Maia, Portugal
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is November (11.9 days).

Average UV index in December - Maia, Portugal
Average UV index in December
Maia, Portugal
  • Average UV index in December: 3

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

Average cloud cover in December - Maia, Portugal
Average cloud cover in December
Maia, Portugal
  • Average cloud cover in December: 40

The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 18).

Average visibility in December - Maia, Portugal
Average visibility in December
Maia, Portugal
  • Average visibility in December: 10km

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

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