December weather forecast and climate
Oleirinhos, Portugal

Weather in December

The first month of the winter, December, is also a frosty month in Oleirinhos, Portugal, with average temperature fluctuating between 2°C (35.6°F) and 8.9°C (48°F).

Temperature

In Oleirinhos, the average high-temperature is almost the same as in November - a frosty 8.9°C (48°F). The average low-temperature, in Oleirinhos, is 2°C (35.6°F).

Humidity

In December, the average relative humidity is 84%.

Rainfall

In Oleirinhos, Portugal, in December, during 12.7 rainfall days, 70mm (2.76") of precipitation is typically accumulated. Throughout the year, in Oleirinhos, there are 141.7 rainfall days, and 532mm (20.94") of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Oleirinhos. In Oleirinhos, Portugal, during December, snow falls for 1 days and regularly aggregates up to 13mm (0.51") of snow. Throughout the year, there are 6.4 snowfall days, and 51mm (2.01") of snow is accumulated.

Daylight

With an average of 9.2h of daylight, December has the shortest days of the year.

Sunshine

In December, the average sunshine is 5.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Oleirinhos. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the UV radiation for the average person.
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 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Oleirinhos?

In Oleirinhos, Portugal, in December, the average high-temperature is 8.9°C (48°F), and the average low-temperature is 2°C (35.6°F).

What is the average humidity in December in Oleirinhos?

In Oleirinhos, Portugal, the average relative humidity in December is 84%.

How many days does it rain in December in Oleirinhos?

In Oleirinhos, Portugal, during December, the rain falls for 12.7 days and regularly aggregates up to 70mm (2.76") of precipitation.

How many days does it snow in December in Oleirinhos?

In Oleirinhos, Portugal, in December, during 1 snowfall days, 13mm (0.51") of snow is typically accumulated.

What is the month with the shortest days in Oleirinhos?

The month with the shortest days in Oleirinhos, Portugal, is December, with an average of 9.2h of daylight.

What is the average length of the day in December in Oleirinhos?

The average length of the day in December in Oleirinhos, Portugal, is 9.2h.

How long on average sun shines in December in Oleirinhos?

In December, the average sunshine in Oleirinhos is 5.1h.

When is the lowest UV index in Oleirinhos?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in December in Oleirinhos?

In December, the average daily maximum UV index in Oleirinhos, Portugal, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from the exposure to the Sun's UV radiation.

Average temperature in December
Oleirinhos, Portugal

Average temperature in December - Oleirinhos, Portugal
  • Average high temperature in December: 8.9°C

The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (8.3°C).

  • Average low temperature in December: 2°C

The month with the highest average low temperature is July (13.8°C).
The coldest month (with the lowest average low temperature) is February (1.2°C).

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Average pressure in December
Oleirinhos, Portugal

Average pressure in December - Oleirinhos, Portugal
  • Average pressure in December: 1022.9mbar

The month with the highest atmospheric pressure is December (1022.9mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

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Average wind speed in December
Oleirinhos, Portugal

Average wind speed in December - Oleirinhos, Portugal
  • Average wind speed in December: 8.8km/h

The windiest month (with the highest average wind speed) is March (11.2km/h).
The calmest month (with the lowest average wind speed) is September (8.4km/h).

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Average humidity in December
Oleirinhos, Portugal

Average humidity in December - Oleirinhos, Portugal
  • Average humidity in December: 84%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (52%).

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Average rainfall in December
Oleirinhos, Portugal

Average rainfall in December - Oleirinhos, Portugal
  • Average rainfall in December: 70mm

The wettest month (with the highest rainfall) is November (73mm).
The driest month (with the least rainfall) is August (11mm).

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Average rainfall days in December
Oleirinhos, Portugal

Average rainfall days in December - Oleirinhos, Portugal
  • Average rainfall days in December: 12.7 days

The month with the highest number of rainy days is April (17.6 days).
The month with the least rainy days is August (4.2 days).

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Average snowfall in December
Oleirinhos, Portugal

Average snowfall in December - Oleirinhos, Portugal
  • Average snowfall in December: 13mm

The month with the highest snowfall is February (19mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in December
Oleirinhos, Portugal

Average snowfall days in December - Oleirinhos, Portugal
  • Average snowfall days in December: 1 days

The month with the highest number of snowfall days is January (2.1 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Oleirinhos, Portugal
  • Average daylight in December: 9.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in December: 5.1h

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is January (Average sunshine: 4.8h).

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Average sunshine days in December
Oleirinhos, Portugal

Average sunshine days in December - Oleirinhos, Portugal
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is August (24.5 days).
The month with the least sunshine days is April (10.8 days).

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Average UV index in December
Oleirinhos, Portugal

Average UV index in December - Oleirinhos, Portugal
  • Average UV index in December: 2

The month with the highest UV index is July (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
Oleirinhos, Portugal

Average cloud cover in December - Oleirinhos, Portugal
  • Average cloud cover in December: 46

The month with the most cloud cover is January (Cloud cover 50).
Months with the least cloud cover are July and August (Cloud cover 13).

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Average visibility in December
Oleirinhos, Portugal

Average visibility in December - Oleirinhos, Portugal
  • Average visibility in December: 8km

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

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