December weather forecast and climate
Ribeira Branca, Portugal

Weather in December

December, the first month of the winter, in Ribeira Branca, is also a moderate month, with average temperature fluctuating between 6.9°C (44.4°F) and 14.4°C (57.9°F).

Temperature

In Ribeira Branca, the average high-temperature in December is relatively the same as in November - a moderate 14.4°C (57.9°F). In Ribeira Branca, in December, the average low-temperature is 6.9°C (44.4°F).

Humidity

In Ribeira Branca, the average relative humidity is 79%.

Rainfall

In Ribeira Branca, in December, it is raining for 10.2 days, with typically 52mm (2.05") of accumulated precipitation. Throughout the year, in Ribeira Branca, there are 113.2 rainfall days, and 426mm (16.77") of precipitation is accumulated.

Daylight

With an average of 9.4h of daylight, December has the shortest days of the year.

Sunshine

In December, the average sunshine in Ribeira Branca is 5.4h.

UV index

Months with the lowest UV index in Ribeira Branca are January, February, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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.
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FAQ

What is the temperature in December in Ribeira Branca?

In Ribeira Branca, in December, the average high-temperature is 14.4°C (57.9°F), and the average low-temperature is 6.9°C (44.4°F).

What is the average humidity in December in Ribeira Branca?

In Ribeira Branca, the average relative humidity in December is 79%.

How much does it rain in Ribeira Branca in December?

In Ribeira Branca, Portugal, during December, the rain falls for 10.2 days and regularly aggregates up to 52mm (2.05") of precipitation.

What is the month with the shortest days in Ribeira Branca?

With an average of 9.4h of daylight, December has the shortest days of the year.

How many hours of daylight does Ribeira Branca have in December?

In Ribeira Branca, the average length of the day in December is 9.4h.

How many hours of sunshine does Ribeira Branca have in December?

The average sunshine in December in Ribeira Branca, Portugal, is 5.4h.

What are the months with the lowest UV index in Ribeira Branca?

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

What is the UV index intensity in December in Ribeira Branca?

The average daily maximum UV index in December in Ribeira Branca, Portugal, is 3. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.

Average temperature in December
Ribeira Branca, Portugal

Average temperature in December - Ribeira Branca, Portugal
  • Average high temperature in December: 14.4°C

The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (13.7°C).

  • Average low temperature in December: 6.9°C

The month with the highest average low temperature is July (15.3°C).
The coldest months (with the lowest average low temperature) are January and February (6.2°C).

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Average pressure in December
Ribeira Branca, Portugal

Average pressure in December - Ribeira Branca, Portugal
  • Average pressure in December: 1022.7mbar

The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

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Average wind speed in December
Ribeira Branca, Portugal

Average wind speed in December - Ribeira Branca, Portugal
  • Average wind speed in December: 10.9km/h

The windiest month (with the highest average wind speed) is July (13.3km/h).
The calmest month (with the lowest average wind speed) is October (10.5km/h).

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Average humidity in December
Ribeira Branca, Portugal

Average humidity in December - Ribeira Branca, Portugal
  • Average humidity in December: 79%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (61%).

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Average rainfall in December
Ribeira Branca, Portugal

Average rainfall in December - Ribeira Branca, Portugal
  • Average rainfall in December: 52mm

The wettest month (with the highest rainfall) is November (66mm).
The driest months (with the least rainfall) are July and August (4mm).

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Average rainfall days in December
Ribeira Branca, Portugal

Average rainfall days in December - Ribeira Branca, Portugal
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is April (14.3 days).
The month with the least rainy days is August (3 days).

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Average daylight in December /
Average sunshine in December
Ribeira Branca, Portugal

Average daylight in December / Average sunshine in December - Ribeira Branca, 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: 5.4h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is January (Average sunshine: 4.9h).

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Average sunshine days in December
Ribeira Branca, Portugal

Average sunshine days in December - Ribeira Branca, Portugal
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is July (27.6 days).
The month with the least sunshine days is April (14 days).

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Average UV index in December
Ribeira Branca, Portugal

Average UV index in December - Ribeira Branca, Portugal
  • Average UV index in December: 3

Months with the highest UV index are 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
Ribeira Branca, Portugal

Average cloud cover in December - Ribeira Branca, Portugal
  • Average cloud cover in December: 41

The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 18).

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Average visibility in December
Ribeira Branca, Portugal

Average visibility in December - Ribeira Branca, Portugal
  • Average visibility in December: 9km

Months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).

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