December weather forecast
Montemor-o-Velho, Portugal

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Weather in December

The first month of the winter, December, is still a refreshing month in Montemor-o-Velho, Portugal, with an average temperature ranging between max 14.5°C (58.1°F) and min 10.1°C (50.2°F).

Temperature

During December, Montemor-o-Velho observes a subtle ascent to a mild 14.5°C (58.1°F) from November's 16.3°C (61.3°F) in the average high-temperature. The December nights show a slight decrease to a mean low-temperature of 10.1°C (50.2°F).

Humidity

The average relative humidity in December is 76%.

Rainfall

In Montemor-o-Velho, in December, during 12.1 rainfall days, 74mm (2.91") of precipitation is typically accumulated. In Montemor-o-Velho, during the entire year, the rain falls for 130.4 days and collects up to 585mm (23.03") of precipitation.

Daylight

December has the shortest days of the year in Montemor-o-Velho, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 07:38 and sunset at 17:09. On the last day of the month, sunrise is at 07:56 and sunset at 17:18 WET.

Sunshine

The average sunshine in December in Montemor-o-Velho is 5.7h.

UV index

In Montemor-o-Velho, the average daily maximum UV index in December is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 4 transforms into these recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Feb 3, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What are December temperatures in Montemor-o-Velho?

The average high-temperature and low-temperature in Montemor-o-Velho, Portugal, during December are 14.5°C (58.1°F) and 10.1°C (50.2°F) respectively.

What is the average humidity in December in Montemor-o-Velho?

In December, the average relative humidity in Montemor-o-Velho, Portugal, is 76%.

How much does it rain in Montemor-o-Velho in December?

In Montemor-o-Velho, during December, the rain falls for 12.1 days and regularly aggregates up to 74mm (2.91") of precipitation.

What is the month with the shortest days in Montemor-o-Velho?

December has the shortest days of the year in Montemor-o-Velho, with an average of 9h and 24min of daylight.

How many hours of daylight does Montemor-o-Velho have in December?

In December, the average day length in Montemor-o-Velho, Portugal, is 9h and 22min.

When is the sunrise / sunset in December in Montemor-o-Velho?

In December, on the first day of the month, sunrise is at 07:38 and sunset at 17:09. On the last day of the month, sunrise is at 07:56 and sunset at 17:18 WET.

How long on average sun shines in December in Montemor-o-Velho?

In Montemor-o-Velho, Portugal, the average sunshine duration in December is 5.7h.

What is the UV index intensity in December in Montemor-o-Velho?

The average daily maximum UV index in December in Montemor-o-Velho is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.

Average temperature in December
Montemor-o-Velho, Portugal

Average temperature in December - Montemor-o-Velho, Portugal
  • Average high temperature in December: 14.5°C

The warmest month (with the highest average high temperature) is August (23.4°C).
The month with the lowest average high temperature is January (13.7°C).

  • Average low temperature in December: 10.1°C

The months with the highest average low temperature are July and August (16.8°C).
The coldest month (with the lowest average low temperature) is February (9.3°C).

Average pressure in December
Montemor-o-Velho, Portugal

Average pressure in December - Montemor-o-Velho, 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 (1015.4mbar).

Average wind speed in December
Montemor-o-Velho, Portugal

Average wind speed in December - Montemor-o-Velho, Portugal
  • Average wind speed in December: 15.9km/h

The windiest month (with the highest average wind speed) is February (17.2km/h).
The calmest month (with the lowest average wind speed) is September (12.8km/h).

Average humidity in December
Montemor-o-Velho, Portugal

Average humidity in December - Montemor-o-Velho, Portugal
  • Average humidity in December: 76%

The month with the highest relative humidity is January (78%).
The months with the lowest relative humidity are September and October (74%).

Average rainfall in December
Montemor-o-Velho, Portugal

Average rainfall in December - Montemor-o-Velho, Portugal
  • Average rainfall in December: 74mm

The wettest month (with the highest rainfall) is November (97mm).
The driest month (with the least rainfall) is July (6mm).

Average rainfall days in December
Montemor-o-Velho, Portugal

Average rainfall days in December - Montemor-o-Velho, Portugal
  • Average rainfall days in December: 12.1 days

The month with the highest number of rainy days is November (16 days).
The month with the least rainy days is August (4.5 days).

Average daylight in December /
Average sunshine in December
Montemor-o-Velho, Portugal

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in December
Montemor-o-Velho, Portugal

Average sunshine days in December - Montemor-o-Velho, Portugal
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is August (23.9 days).
The month with the least sunshine days is November (11.9 days).

Average UV index in December
Montemor-o-Velho, Portugal

Average UV index in December - Montemor-o-Velho, Portugal
  • Average UV index in December: 4

The months with the highest UV index are May, June, July, August and September (UV index 5).
The month with the lowest UV index is January (UV index 3).

Average cloud cover in December
Montemor-o-Velho, Portugal

Average cloud cover in December - Montemor-o-Velho, Portugal
  • Average cloud cover in December: 38

The month with the most cloud cover is January (Cloud cover 42).
The months with the least cloud cover are August and September (Cloud cover 20).

Average visibility in December
Montemor-o-Velho, Portugal

Average visibility in December - Montemor-o-Velho, Portugal
  • Average visibility in December: 10km

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

Montemor-o-Velho, Portugal

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