December weather forecast and climate
Valhascos, Portugal

Weather in December

The first month of the winter, December, is also a moderate month in Valhascos, Portugal, with average temperature varying between 14.2°C (57.6°F) and 6.6°C (43.9°F).

Temperature

In December, the average high-temperature is practically the same as in November - a moderate 14.2°C (57.6°F). In December, in Valhascos, the average low-temperature is 6.6°C (43.9°F).

Humidity

The average relative humidity in December is 78%.

Rainfall

In Valhascos, in December, during 8.3 rainfall days, 42mm (1.65") of precipitation is typically accumulated. Throughout the year, there are 85.1 rainfall days, and 280mm (11.02") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 9.4h of daylight.

Sunshine

In December, the average sunshine in Valhascos, Portugal, is 5.7h.

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 health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 3 in December transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. 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 Valhascos?

In Valhascos, Portugal, in December, the average high-temperature is 14.2°C (57.6°F), and the average low-temperature is 6.6°C (43.9°F).

What is the average humidity in December in Valhascos?

In December, the average relative humidity is 78%.

How much does it rain in Valhascos in December?

In Valhascos, in December, during 8.3 rainfall days, 42mm (1.65") of precipitation is typically accumulated.

What is the month with the shortest days in Valhascos?

The month with the shortest days in Valhascos is December, with an average of 9.4h of daylight.

How many hours of daylight does Valhascos have in December?

In December, the average length of the day in Valhascos, Portugal, is 9.4h.

How many hours of sunshine does Valhascos have in December?

The average sunshine in December in Valhascos, Portugal, is 5.7h.

When is the lowest UV index in Valhascos?

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.

What is the UV index intensity in December in Valhascos?

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

Average temperature in December
Valhascos, Portugal

Average temperature in December - Valhascos, Portugal
  • Average high temperature in December: 14.2°C

The warmest month (with the highest average high temperature) is August (32.7°C).
The month with the lowest average high temperature is January (13.3°C).

  • Average low temperature in December: 6.6°C

The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is January (5.7°C).

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Average pressure in December
Valhascos, Portugal

Average pressure in December - Valhascos, Portugal
  • Average pressure in December: 1022.8mbar

The month with the highest atmospheric pressure is December (1022.8mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).

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Average wind speed in December
Valhascos, Portugal

Average wind speed in December - Valhascos, Portugal
  • Average wind speed in December: 10.7km/h

The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is September (9.8km/h).

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Average humidity in December
Valhascos, Portugal

Average humidity in December - Valhascos, Portugal
  • Average humidity in December: 78%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (55%).

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Average rainfall in December
Valhascos, Portugal

Average rainfall in December - Valhascos, Portugal
  • Average rainfall in December: 42mm

The wettest month (with the highest rainfall) is November (50mm).
The driest months (with the least rainfall) are July and August (3mm).

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Average rainfall days in December
Valhascos, Portugal

Average rainfall days in December - Valhascos, Portugal
  • Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is November (11.2 days).
The month with the least rainy days is August (1.6 days).

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

Average daylight in December / Average sunshine in December - Valhascos, Portugal
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 5.7h

The month with the most sunshine is July (Average sunshine: 11.6h).
The month with the least sunshine is January (Average sunshine: 5.1h).

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Average sunshine days in December
Valhascos, Portugal

Average sunshine days in December - Valhascos, Portugal
  • Average sunshine days in December: 21.6 days

Months with the most sunshine days are July and August (28.7 days).
The month with the least sunshine days is November (17.9 days).

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Average UV index in December
Valhascos, Portugal

Average UV index in December - Valhascos, Portugal
  • Average UV index in December: 3

Months with the highest UV index are May, June, July, August and September (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in December
Valhascos, Portugal

Average cloud cover in December - Valhascos, Portugal
  • Average cloud cover in December: 38

The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 12).

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Average visibility in December
Valhascos, Portugal

Average visibility in December - Valhascos, Portugal
  • Average visibility in December: 9km

The month with the highest visibility is June (10km).
The month with the lowest visibility is January (8km).

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