December weather forecast and climate
Vale de Afonsinho, Portugal

Weather in December

The first month of the winter, December, is also a frosty month in Vale de Afonsinho, Portugal, with average temperature varying between 9.6°C (49.3°F) and 3.1°C (37.6°F).

Temperature

In Vale de Afonsinho, the average high-temperature in December is almost the same as in November - a frosty 9.6°C (49.3°F). The average low-temperature, in December, is 3.1°C (37.6°F).

Humidity

In December, the average relative humidity is 82%.

Rainfall

The month with the most rainfall in Vale de Afonsinho is December when the rain falls for 9.8 days and typically aggregates up to 65mm (2.56") of precipitation.

Snowfall

January through April, November and December are months with snowfall in Vale de Afonsinho. In Vale de Afonsinho, during December, snow falls for 1.7 days and regularly aggregates up to 32mm (1.26") of snow. In Vale de Afonsinho, during the entire year, snow falls for 13 days, and aggregates up to 161mm (6.34") of snow.

Daylight

With an average of 9.3h of daylight, December has the shortest days of the year in Vale de Afonsinho.

Sunshine

In December, the average sunshine is 5h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from the exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Vale de Afonsinho?

In Vale de Afonsinho, Portugal, in December, the average high-temperature is 9.6°C (49.3°F), and the average low-temperature is 3.1°C (37.6°F).

What is the average humidity in December in Vale de Afonsinho?

The average relative humidity in December in Vale de Afonsinho is 82%.

How many days does it rain in December in Vale de Afonsinho?

In Vale de Afonsinho, in December, during 9.8 rainfall days, 65mm (2.56") of precipitation is typically accumulated.

What is the wettest month in Vale de Afonsinho?

December is the month with the most rainfall in Vale de Afonsinho. Rain falls for 9.8 days and accumulates 65mm (2.56") of precipitation.

How much does it snow in Vale de Afonsinho in December?

In December, in Vale de Afonsinho, it is snowing for 1.7 days. Throughout December, 32mm (1.26") of snow is accumulated.

What is the month with the shortest days in Vale de Afonsinho?

December has the shortest days of the year, with an average of 9.3h of daylight.

What is the average length of the day in December in Vale de Afonsinho?

The average length of the day in December in Vale de Afonsinho, Portugal, is 9.3h.

How long on average sun shines in December in Vale de Afonsinho?

In December, the average sunshine in Vale de Afonsinho, Portugal, is 5h.

When is the lowest UV index in Vale de Afonsinho?

Months with the lowest UV index in Vale de Afonsinho are January, February, November and December, with an average maximum UV index of 2.

How high is the UV index in December in Vale de Afonsinho?

In Vale de Afonsinho, Portugal, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to the UV radiation.

Average temperature in December
Vale de Afonsinho, Portugal

Average temperature in December - Vale de Afonsinho, Portugal
  • Average high temperature in December: 9.6°C

The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (8.7°C).

  • Average low temperature in December: 3.1°C

The month with the highest average low temperature is July (14.2°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).

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Average pressure in December
Vale de Afonsinho, Portugal

Average pressure in December - Vale de Afonsinho, Portugal
  • Average pressure in December: 1023.1mbar

The month with the highest atmospheric pressure is December (1023.1mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).

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Average wind speed in December
Vale de Afonsinho, Portugal

Average wind speed in December - Vale de Afonsinho, Portugal
  • Average wind speed in December: 11.3km/h

The windiest month (with the highest average wind speed) is February (12.7km/h).
The calmest month (with the lowest average wind speed) is September (9.1km/h).

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Average humidity in December
Vale de Afonsinho, Portugal

Average humidity in December - Vale de Afonsinho, Portugal
  • Average humidity in December: 82%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (50%).

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Average rainfall in December
Vale de Afonsinho, Portugal

Average rainfall in December - Vale de Afonsinho, Portugal
  • Average rainfall in December: 65mm

The wettest month (with the highest rainfall) is December (65mm).
The driest month (with the least rainfall) is August (6mm).

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Average rainfall days in December
Vale de Afonsinho, Portugal

Average rainfall days in December - Vale de Afonsinho, Portugal
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is April (16.2 days).
The month with the least rainy days is August (2.7 days).

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Average snowfall in December
Vale de Afonsinho, Portugal

Average snowfall in December - Vale de Afonsinho, Portugal
  • Average snowfall in December: 32mm

Months with the highest snowfall are January and February (44mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in December
Vale de Afonsinho, Portugal

Average snowfall days in December - Vale de Afonsinho, Portugal
  • Average snowfall days in December: 1.7 days

The month with the highest number of snowfall days is January (3.9 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Vale de Afonsinho, Portugal

Average daylight in December / Average sunshine in December - Vale de Afonsinho, Portugal
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 5h

Months with the most sunshine are July and August (Average sunshine: 11.6h).
The month with the least sunshine is January (Average sunshine: 4.3h).

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Average sunshine days in December
Vale de Afonsinho, Portugal

Average sunshine days in December - Vale de Afonsinho, Portugal
  • Average sunshine days in December: 19.7 days

The month with the most sunshine days is August (27.1 days).
The month with the least sunshine days is April (12.5 days).

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Average UV index in December
Vale de Afonsinho, Portugal

Average UV index in December - Vale de Afonsinho, Portugal
  • Average UV index in December: 2

Months with the highest UV index are July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Vale de Afonsinho, Portugal

Average cloud cover in December - Vale de Afonsinho, Portugal
  • Average cloud cover in December: 47

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 12).

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Average visibility in December
Vale de Afonsinho, Portugal

Average visibility in December - Vale de Afonsinho, Portugal
  • Average visibility in December: 8km

Months with the highest visibility are July, August and September (10km).
Months with the lowest visibility are January, February, April, November and December (8km).

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