December weather forecast
Guimaraes, Portugal

December

Weather in December

The first month of the winter, December, is still a mild month in Guimaraes, Portugal, with an average temperature ranging between max 13.6°C (56.5°F) and min 8.8°C (47.8°F).

Temperature

December's onset records an average high-temperature of a still mild 13.6°C (56.5°F), a near match to November's 15.3°C (59.5°F). Guimaraes registers a subtle dip to an average of 8.8°C (47.8°F) during the nights of December.

Humidity

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

Rainfall

In Guimaraes, in December, it is raining for 13.8 days, with typically 113mm (4.45") of accumulated precipitation. In Guimaraes, during the entire year, the rain falls for 137 days and collects up to 815mm (32.09") of precipitation.

Daylight

The month with the shortest days in Guimaraes is December, with an average of 9h and 12min of daylight.
On the first day of December in Guimaraes, sunrise is at 07:40 and sunset at 17:04. On the last day of the month, sunrise is at 07:59 and sunset at 17:13 WET.

Sunshine

In Guimaraes, 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 Guimaraes. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 3 during December morphs into the following directions:
Make use of precautions - It is urged to ward off sun damage. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

What are December temperatures in Guimaraes?
An average high-temperature, in December, in Guimaraes, is 13.6°C (56.5°F) and the average low-temperature is 8.8°C (47.8°F).
What is the average humidity in December in Guimaraes?
The average relative humidity in December in Guimaraes is 79%.
How much does it rain in Guimaraes in December?
In Guimaraes, Portugal, during December, the rain falls for 13.8 days and regularly aggregates up to 113mm (4.45") of precipitation.
What is the month with the shortest days in Guimaraes?
With an average of 9h and 12min of daylight, December has the shortest days of the year in Guimaraes.
How many hours of daylight does Guimaraes have in December?
In December, the average day length in Guimaraes is 9h and 14min.
When are sunrise and sunset in December in Guimaraes?
On the first day of December, sunrise is at 07:40 and sunset at 17:04. On the last day of the month, sunrise is at 07:59 and sunset at 17:13 WET.
How many hours of sunshine does Guimaraes have in December?
The average sunshine duration in December in Guimaraes, Portugal, is 5.5h.
What are the months with the lowest UV index in Guimaraes?
The months with the lowest UV index in Guimaraes are January, February, November and December, with an average maximum UV index of 3.
What is the UV index intensity in December in Guimaraes?
The average daily maximum UV index in December in Guimaraes is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
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 - Guimaraes, Portugal
Average temperature in December
Guimaraes, Portugal
  • Average high temperature in December: 13.6°C

The warmest month (with the highest average high temperature) is August (25.1°C).
The month with the lowest average high temperature is January (12.8°C).

  • Average low temperature in December: 8.8°C

The months with the highest average low temperature are July and August (15.8°C).
The coldest month (with the lowest average low temperature) is February (7.6°C).

Average pressure in December - Guimaraes, Portugal
Average pressure in December
Guimaraes, Portugal
  • Average pressure in December: 1022.5mbar

The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).

Average wind speed in December - Guimaraes, Portugal
Average wind speed in December
Guimaraes, Portugal
  • Average wind speed in December: 11.9km/h

The windiest month (with the highest average wind speed) is February (12.8km/h).
The calmest month (with the lowest average wind speed) is September (9.6km/h).

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

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (68%).

Average rainfall in December - Guimaraes, Portugal
Average rainfall in December
Guimaraes, Portugal
  • Average rainfall in December: 113mm

The wettest month (with the highest rainfall) is November (126mm).
The driest month (with the least rainfall) is July (9mm).

Average rainfall days in December - Guimaraes, Portugal
Average rainfall days in December
Guimaraes, Portugal
  • Average rainfall days in December: 13.8 days

The month with the highest number of rainy days is November (16.1 days).
The month with the least rainy days is August (4.7 days).

Average daylight in December / Average sunshine in December - Guimaraes, Portugal
Average daylight in December /
Average sunshine in December
Guimaraes, Portugal
  • Average daylight in December: 9h and 1min

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 12min).

  • 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 - Guimaraes, Portugal
Average sunshine days in December
Guimaraes, Portugal
  • Average sunshine days in December: 16.4 days

The month with the most sunshine days is August (24.8 days).
The month with the least sunshine days is November (11.9 days).

Average UV index in December - Guimaraes, Portugal
Average UV index in December
Guimaraes, 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 - Guimaraes, Portugal
Average cloud cover in December
Guimaraes, Portugal
  • Average cloud cover in December: 41

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 - Guimaraes, Portugal
Average visibility in December
Guimaraes, Portugal
  • 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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