December weather forecast and climate
Samão, Portugal

Weather in December

The first month of the winter, December, is still a cool month in Samão, Portugal, with average temperature fluctuating between 11.5°C (52.7°F) and 4.8°C (40.6°F).

Temperature

In Samão, the average high-temperature is relatively the same as in November - a cool 11.5°C (52.7°F). In December, the average low-temperature is 4.8°C (40.6°F).

Humidity

The average relative humidity in Samão is 85%.

Rainfall

The month with the most rainfall is December when the rain falls for 14 days and typically aggregates up to 135mm (5.31") of precipitation.

Snowfall

In Samão snow does not fall in April through October and December.

Daylight

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

Sunshine

The average sunshine in Samão is 5h.

UV index

In December, the average daily maximum UV index in Samão is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 3 in December interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in December in Samão?

The average high-temperature, in December, in Samão, is 11.5°C (52.7°F), while the average low-temperature is 4.8°C (40.6°F).

What is the average humidity in December in Samão?

In Samão, Portugal, the average relative humidity in December is 85%.

How much does it rain in Samão in December?

In Samão, in December, during 14 rainfall days, 135mm (5.31") of precipitation is typically accumulated.

What is the wettest month in Samão?

December is the month with the most rainfall in Samão. Rain falls for 14 days and accumulates 135mm (5.31") of precipitation.

Does it snow in Samão in December?

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

When it does not snow in Samão?

April through October and December are months without snowfall in Samão, Portugal.

What is the month with the shortest days in Samão?

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

How many hours of daylight does Samão have in December?

In Samão, Portugal, the average length of the day in December is 9.2h.

How long on average sun shines in December in Samão?

In December, the average sunshine is 5h.

How high is the UV index in December in Samão?

In December, the average daily maximum UV index in Samão, Portugal, is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to the UV radiation.

Average temperature in December
Samão, Portugal

Average temperature in December - Samão, Portugal
  • Average high temperature in December: 11.5°C

The warmest months (with the highest average high temperature) are July and August (27.8°C).
The month with the lowest average high temperature is January (10.8°C).

  • Average low temperature in December: 4.8°C

The month with the highest average low temperature is July (13.7°C).
The coldest month (with the lowest average low temperature) is February (3.5°C).

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Average pressure in December
Samão, Portugal

Average pressure in December - Samão, Portugal
  • Average pressure in December: 1022.6mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).

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Average wind speed in December
Samão, Portugal

Average wind speed in December - Samão, Portugal
  • Average wind speed in December: 7.6km/h

The windiest month (with the highest average wind speed) is March (8km/h).
The calmest month (with the lowest average wind speed) is September (6.4km/h).

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Average humidity in December
Samão, Portugal

Average humidity in December - Samão, Portugal
  • Average humidity in December: 85%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (62%).

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Average rainfall in December
Samão, Portugal

Average rainfall in December - Samão, Portugal
  • Average rainfall in December: 135mm

The wettest month (with the highest rainfall) is December (135mm).
The driest month (with the least rainfall) is July (7mm).

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Average rainfall days in December
Samão, Portugal

Average rainfall days in December - Samão, Portugal
  • Average rainfall days in December: 14 days

The month with the highest number of rainy days is January (16.2 days).
The month with the least rainy days is August (3.2 days).

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Average snowfall in December
Samão, Portugal

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

The month with the highest snowfall is January (5mm).
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
Samão, Portugal

Average snowfall days in December - Samão, Portugal
  • Average snowfall days in December: 0 days

Months with the highest number of snowfall days are January and February (0.3 days).
Months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).

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

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

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in December: 5h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is January (Average sunshine: 4.3h).

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Average sunshine days in December
Samão, Portugal

Average sunshine days in December - Samão, Portugal
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is November (12.2 days).

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Average UV index in December
Samão, Portugal

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

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

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Average cloud cover in December
Samão, Portugal

Average cloud cover in December - Samão, Portugal
  • Average cloud cover in December: 49

The month with the most cloud cover is January (Cloud cover 55).
Months with the least cloud cover are July and August (Cloud cover 22).

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Average visibility in December
Samão, Portugal

Average visibility in December - Samão, Portugal
  • Average visibility in December: 7km

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

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