December weather forecast and climate
Santar, Portugal

Weather in December

December, the first month of the winter, in Santar, is also a fresh month, with average temperature ranging between min 4.2°C (39.6°F) and max 11.6°C (52.9°F).

Temperature

In December, the average high-temperature is relatively the same as in November - a cool 11.6°C (52.9°F). In December, the average low-temperature is 4.2°C (39.6°F).

Humidity

The average relative humidity in Santar is 83%.

Rainfall

December is the month with the most rainfall. Rain falls for 11.5 days and accumulates 92mm (3.62") of precipitation.

Snowfall

April through October and December are months without snowfall in Santar.

Daylight

The month with the shortest days is December, with an average of 9.3h of daylight.

Sunshine

In December, the average sunshine is 5.4h.

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 value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. 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 Santar?

In December, in Santar, the average high-temperature is 11.6°C (52.9°F), and the average low-temperature is 4.2°C (39.6°F).

What is the average humidity in December in Santar?

In December, the average relative humidity in Santar is 83%.

How much does it rain in Santar in December?

In Santar, Portugal, in December, during 11.5 rainfall days, 92mm (3.62") of precipitation is typically accumulated.

What is the wettest month in Santar?

The month with the most rainfall is December when the rain falls for 11.5 days and typically aggregates up to 92mm (3.62") of precipitation.

Does it snow in Santar in December?

In December, it doesn't snow. November is the latest month when it typically snows.

When it does not snow in Santar?

In Santar, Portugal, snow does not fall in April through October and December.

What is the month with the shortest days in Santar?

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

How many hours of daylight does Santar have in December?

In Santar, the average length of the day in December is 9.3h.

How long on average sun shines in December in Santar?

In December, the average sunshine in Santar, Portugal, is 5.4h.

What is the month with the lowest UV index in Santar?

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 Santar?

In Santar, Portugal, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in December
Santar, Portugal

Average temperature in December - Santar, Portugal
  • Average high temperature in December: 11.6°C

The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (10.7°C).

  • Average low temperature in December: 4.2°C

The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).

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Average pressure in December
Santar, Portugal

Average pressure in December - Santar, 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 (1015.2mbar).

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Average wind speed in December
Santar, Portugal

Average wind speed in December - Santar, Portugal
  • Average wind speed in December: 8.6km/h

The windiest month (with the highest average wind speed) is March (9.1km/h).
The calmest month (with the lowest average wind speed) is September (7.1km/h).

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Average humidity in December
Santar, Portugal

Average humidity in December - Santar, Portugal
  • Average humidity in December: 83%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (57%).

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Average rainfall in December
Santar, Portugal

Average rainfall in December - Santar, Portugal
  • Average rainfall in December: 92mm

The wettest month (with the highest rainfall) is December (92mm).
The driest month (with the least rainfall) is July (6mm).

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Average rainfall days in December
Santar, Portugal

Average rainfall days in December - Santar, Portugal
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is November (15.5 days).
The month with the least rainy days is August (3.3 days).

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Average snowfall in December
Santar, Portugal

Average snowfall in December - Santar, Portugal
  • Average snowfall in December: 0mm

Months with the highest snowfall are January and February (3mm).
Months with the least snowfall are April, May, June, July, August, September, October and December (0mm).

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Average snowfall days in December
Santar, Portugal

Average snowfall days in December - Santar, Portugal
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.4 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Santar, Portugal
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 5.4h

The month with the most sunshine is July (Average sunshine: 11.5h).
The month with the least sunshine is January (Average sunshine: 4.7h).

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Average sunshine days in December
Santar, Portugal

Average sunshine days in December - Santar, Portugal
  • Average sunshine days in December: 18.3 days

The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is April (13 days).

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Average UV index in December
Santar, Portugal

Average UV index in December - Santar, 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
Santar, Portugal

Average cloud cover in December - Santar, Portugal
  • Average cloud cover in December: 44

The month with the most cloud cover is January (Cloud cover 52).
Months with the least cloud cover are July and August (Cloud cover 17).

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Average visibility in December
Santar, Portugal

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

Months with the highest visibility are June, July, August and September (9km).
Months with the lowest visibility are January and November (7km).

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