December weather forecast and climate
Santa Maria de Emeres, Portugal

Weather in December

The first month of the winter, December, is still a chilly month in Santa Maria de Emeres, Portugal, with average temperature ranging between min 2.5°C (36.5°F) and max 9.8°C (49.6°F).

Temperature

In December, the average high-temperature is almost the same as in November - a chilly 9.8°C (49.6°F). In December, in Santa Maria de Emeres, the average low-temperature is 2.5°C (36.5°F).

Humidity

In Santa Maria de Emeres, the average relative humidity in December is 86%.

Rainfall

The month with the most rainfall is December when the rain falls for 12.4 days and typically aggregates up to 72mm (2.83") of precipitation.

Snowfall

In Santa Maria de Emeres snow does not fall in March through December.

Daylight

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

Sunshine

In Santa Maria de Emeres, the average sunshine in December is 4.9h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Santa Maria de Emeres. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 2 in December transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Santa Maria de Emeres?

The average high-temperature, in December, is 9.8°C (49.6°F), while the average low-temperature is 2.5°C (36.5°F).

What is the average humidity in December in Santa Maria de Emeres?

In Santa Maria de Emeres, Portugal, the average relative humidity in December is 86%.

How many days does it rain in December in Santa Maria de Emeres?

In December, in Santa Maria de Emeres, the rain falls for 12.4 days. Throughout December, 72mm (2.83") of precipitation is accumulated.

What is the rainiest month in Santa Maria de Emeres?

December is the month with the most rainfall. Rain falls for 12.4 days and accumulates 72mm (2.83") of precipitation.

Does it snow in Santa Maria de Emeres in December?

In Santa Maria de Emeres, in December, it doesn't snow. In January, it regularly snows.

When it does not snow in Santa Maria de Emeres?

In Santa Maria de Emeres snow does not fall in March through December.

What is the month with the shortest days in Santa Maria de Emeres?

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

What is the average length of the day in December in Santa Maria de Emeres?

In December, the average length of the day in Santa Maria de Emeres is 9.2h.

How long on average sun shines in December in Santa Maria de Emeres?

In December, the average sunshine in Santa Maria de Emeres, Portugal, is 4.9h.

When is the lowest UV index in Santa Maria de Emeres?

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

How high is the UV index in December in Santa Maria de Emeres?

In Santa Maria de Emeres, 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 the exposure to the Sun's UV radiation.

Average temperature in December
Santa Maria de Emeres, Portugal

Average temperature in December - Santa Maria de Emeres, Portugal
  • Average high temperature in December: 9.8°C

The warmest month (with the highest average high temperature) is August (29.1°C).
The month with the lowest average high temperature is January (8.9°C).

  • Average low temperature in December: 2.5°C

Months with the highest average low temperature are July and August (13.1°C).
The coldest month (with the lowest average low temperature) is February (1.5°C).

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Average pressure in December
Santa Maria de Emeres, Portugal

Average pressure in December - Santa Maria de Emeres, 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 (1015.3mbar).

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Average wind speed in December
Santa Maria de Emeres, Portugal

Average wind speed in December - Santa Maria de Emeres, Portugal
  • Average wind speed in December: 6.7km/h

The windiest month (with the highest average wind speed) is March (8.3km/h).
The calmest months (with the lowest average wind speed) are September and October (6.5km/h).

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Average humidity in December
Santa Maria de Emeres, Portugal

Average humidity in December - Santa Maria de Emeres, Portugal
  • Average humidity in December: 86%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (56%).

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Average rainfall in December
Santa Maria de Emeres, Portugal

Average rainfall in December - Santa Maria de Emeres, Portugal
  • Average rainfall in December: 72mm

The wettest month (with the highest rainfall) is December (72mm).
The driest months (with the least rainfall) are July and August (11mm).

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Average rainfall days in December
Santa Maria de Emeres, Portugal

Average rainfall days in December - Santa Maria de Emeres, Portugal
  • Average rainfall days in December: 12.4 days

The month with the highest number of rainy days is April (14.6 days).
The month with the least rainy days is August (3.8 days).

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Average snowfall in December
Santa Maria de Emeres, Portugal

Average snowfall in December - Santa Maria de Emeres, Portugal
  • Average snowfall in December: 0mm

The month with the highest snowfall is February (5mm).
Months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

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Average snowfall days in December
Santa Maria de Emeres, Portugal

Average snowfall days in December - Santa Maria de Emeres, Portugal
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.3 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
Santa Maria de Emeres, Portugal

Average daylight in December / Average sunshine in December - Santa Maria de Emeres, 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: 4.9h

The month with the most sunshine is July (Average sunshine: 11.5h).
The month with the least sunshine is January (Average sunshine: 4.4h).

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Average sunshine days in December
Santa Maria de Emeres, Portugal

Average sunshine days in December - Santa Maria de Emeres, Portugal
  • Average sunshine days in December: 17.1 days

The month with the most sunshine days is August (25.5 days).
The month with the least sunshine days is November (13.5 days).

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Average UV index in December
Santa Maria de Emeres, Portugal

Average UV index in December - Santa Maria de Emeres, 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
Santa Maria de Emeres, Portugal

Average cloud cover in December - Santa Maria de Emeres, Portugal
  • Average cloud cover in December: 49

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in December
Santa Maria de Emeres, Portugal

Average visibility in December - Santa Maria de Emeres, Portugal
  • Average visibility in December: 7km

The month with the highest visibility is August (10km).
The month with the lowest visibility is January (6km).

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