December weather forecast and climate
Relíquias, Portugal

Weather in December

The first month of the winter, December, is also a moderate month in Relíquias, Portugal, with temperature in the range of an average high of 15.8°C (60.4°F) and an average low of 10.9°C (51.6°F).

Temperature

In December, the average high-temperature is almost the same as in November - a mild 15.8°C (60.4°F). The average low-temperature, in Relíquias, is 10.9°C (51.6°F).

Humidity

In December, the average relative humidity in Relíquias, Portugal, is 76%.

Rainfall

In December, the rain falls for 7.8 days. Throughout December, 20mm (0.79") of precipitation is accumulated. Throughout the year, there are 85.4 rainfall days, and 164mm (6.46") of precipitation is accumulated.

Daylight

The month with the shortest days in Relíquias is December, with an average of 9.6h of daylight.

Sunshine

The average sunshine is 6.3h.

UV index

In December, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV radiation for the average person.
Note: In December, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in December in Relíquias?

In December, in Relíquias, the average high-temperature is 15.8°C (60.4°F), and the average low-temperature is 10.9°C (51.6°F).

What is the average humidity in December in Relíquias?

In Relíquias, the average relative humidity in December is 76%.

How much does it rain in Relíquias in December?

In December, in Relíquias, the rain falls for 7.8 days. Throughout December, 20mm (0.79") of precipitation is accumulated.

What is the month with the shortest days in Relíquias?

With an average of 9.6h of daylight, December has the shortest days of the year.

How many hours of daylight does Relíquias have in December?

In Relíquias, Portugal, the average length of the day in December is 9.6h.

How long on average sun shines in December in Relíquias?

In Relíquias, the average sunshine in December is 6.3h.

How high is the UV index in December in Relíquias?

The average daily maximum UV index in December in Relíquias, Portugal, is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in December
Relíquias, Portugal

Average temperature in December - Relíquias, Portugal
  • Average high temperature in December: 15.8°C

The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (14.5°C).

  • Average low temperature in December: 10.9°C

The month with the highest average low temperature is August (18.4°C).
The coldest month (with the lowest average low temperature) is February (9.2°C).

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Average pressure in December
Relíquias, Portugal

Average pressure in December - Relíquias, Portugal
  • Average pressure in December: 1022.6mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).

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Average wind speed in December
Relíquias, Portugal

Average wind speed in December - Relíquias, Portugal
  • Average wind speed in December: 14.5km/h

The windiest month (with the highest average wind speed) is February (16.1km/h).
The calmest month (with the lowest average wind speed) is September (11.2km/h).

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Average humidity in December
Relíquias, Portugal

Average humidity in December - Relíquias, Portugal
  • Average humidity in December: 76%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in December
Relíquias, Portugal

Average rainfall in December - Relíquias, Portugal
  • Average rainfall in December: 20mm

The wettest month (with the highest rainfall) is November (25mm).
The driest month (with the least rainfall) is July (1mm).

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Average rainfall days in December
Relíquias, Portugal

Average rainfall days in December - Relíquias, Portugal
  • Average rainfall days in December: 7.8 days

The month with the highest number of rainy days is March (12.2 days).
The month with the least rainy days is August (1.5 days).

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

Average daylight in December / Average sunshine in December - Relíquias, Portugal
  • Average daylight in December: 9.6h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in December: 6.3h

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is January (Average sunshine: 5.9h).

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Average sunshine days in December
Relíquias, Portugal

Average sunshine days in December - Relíquias, Portugal
  • Average sunshine days in December: 20.7 days

The month with the most sunshine days is July (28.6 days).
The month with the least sunshine days is April (15.3 days).

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Average UV index in December
Relíquias, Portugal

Average UV index in December - Relíquias, Portugal
  • Average UV index in December: 4

Months with the highest UV index are May, June, July, August and September (UV index 6).
The month with the lowest UV index is January (UV index 3).

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Average cloud cover in December
Relíquias, Portugal

Average cloud cover in December - Relíquias, Portugal
  • Average cloud cover in December: 30

The month with the most cloud cover is January (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 8).

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Average visibility in December
Relíquias, Portugal

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

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

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