December weather forecast
Caldas de São Jorge, Portugal

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Weather in December

The first month of the winter, December, is still a mild month in Caldas de São Jorge, Portugal, with temperature in the range of an average high of 13.6°C (56.5°F) and an average low of 8.1°C (46.6°F).

Temperature

Caldas de São Jorge's shift from November to December is accompanied by an average high-temperature of a still moderate 13.6°C (56.5°F), a slight deviation from 15.3°C (59.5°F). The average low-temperature of 8.1°C (46.6°F) is witnessed in Caldas de São Jorge during December.

Humidity

In Caldas de São Jorge, the average relative humidity in December is 80%.

Rainfall

In Caldas de São Jorge, in December, it is raining for 12.9 days, with typically 106mm (4.17") of accumulated precipitation. In Caldas de São Jorge, during the entire year, the rain falls for 126.3 days and collects up to 725mm (28.54") of precipitation.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December in Caldas de São Jorge, Portugal, sunrise is at 07:39 and sunset at 17:06. On the last day of the month, sunrise is at 07:58 and sunset at 17:15 WET.

Sunshine

In December, the average sunshine 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. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In December, an average UV index of 3 transforms into the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

What are December temperatures in Caldas de São Jorge?

The high-temperature, in December, in Caldas de São Jorge, records 13.6°C (56.5°F), while the low-temperature is 8.1°C (46.6°F).

What is the average humidity in December in Caldas de São Jorge?

In December, the average relative humidity in Caldas de São Jorge, Portugal, is 80%.

How much does it rain in Caldas de São Jorge in December?

In Caldas de São Jorge, Portugal, during December, the rain falls for 12.9 days and regularly aggregates up to 106mm (4.17") of precipitation.

What is the month with the shortest days in Caldas de São Jorge?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Caldas de São Jorge.

How many hours of daylight does Caldas de São Jorge have in December?

In Caldas de São Jorge, Portugal, the average day length in December is 9h and 17min.

When are sunrise and sunset in December in Caldas de São Jorge?

In December, on the first day of the month, sunrise is at 07:39 and sunset at 17:06. On the last day of the month, in Caldas de São Jorge, sunrise is at 07:58 and sunset at 17:15 WET.

How many hours of sunshine does Caldas de São Jorge have in December?

In December, the average sunshine duration in Caldas de São Jorge is 5.5h.

What are the months with the lowest UV index in Caldas de São Jorge?

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

How high is the UV index in December in Caldas de São Jorge?

In Caldas de São Jorge, Portugal, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.

Average temperature in December
Caldas de São Jorge, Portugal

Average temperature in December - Caldas de São Jorge, Portugal
  • Average high temperature in December: 13.6°C

The warmest month (with the highest average high temperature) is August (26.1°C).
The month with the lowest average high temperature is January (12.8°C).

  • Average low temperature in December: 8.1°C

The month with the highest average low temperature is August (15.5°C).
The coldest month (with the lowest average low temperature) is February (6.8°C).

Average pressure in December
Caldas de São Jorge, Portugal

Average pressure in December - Caldas de São Jorge, 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
Caldas de São Jorge, Portugal

Average wind speed in December - Caldas de São Jorge, Portugal
  • Average wind speed in December: 10.4km/h

The windiest month (with the highest average wind speed) is February (11.2km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).

Average humidity in December
Caldas de São Jorge, Portugal

Average humidity in December - Caldas de São Jorge, Portugal
  • Average humidity in December: 80%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (67%).

Average rainfall in December
Caldas de São Jorge, Portugal

Average rainfall in December - Caldas de São Jorge, Portugal
  • Average rainfall in December: 106mm

The wettest month (with the highest rainfall) is November (109mm).
The driest month (with the least rainfall) is July (7mm).

Average rainfall days in December
Caldas de São Jorge, Portugal

Average rainfall days in December - Caldas de São Jorge, Portugal
  • Average rainfall days in December: 12.9 days

The month with the highest number of rainy days is November (15 days).
The month with the least rainy days is August (3.8 days).

Average daylight in December /
Average sunshine in December
Caldas de São Jorge, Portugal

Average daylight in December / Average sunshine in December - Caldas de São Jorge, 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 6min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in December
Caldas de São Jorge, Portugal

Average sunshine days in December - Caldas de São Jorge, Portugal
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is November (13.6 days).

Average UV index in December
Caldas de São Jorge, Portugal

Average UV index in December - Caldas de São Jorge, 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
Caldas de São Jorge, Portugal

Average cloud cover in December - Caldas de São Jorge, Portugal
  • Average cloud cover in December: 42

The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in December
Caldas de São Jorge, Portugal

Average visibility in December - Caldas de São Jorge, Portugal
  • Average visibility in December: 9km

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

Caldas de São Jorge, Portugal

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