December weather forecast and climate
Passagem, Portugal

Weather in December

The first month of the winter, December, is still a mild month in Passagem, Portugal, with average temperature fluctuating between 8.5°C (47.3°F) and 14.5°C (58.1°F).

Temperature

In December, the average high-temperature is relatively the same as in November - a mild 14.5°C (58.1°F). The average low-temperature, in December, is 8.5°C (47.3°F).

Humidity

In Passagem, the average relative humidity in December is 78%.

Rainfall

In Passagem, it is raining for 11.4 days, with typically 54mm (2.13") of accumulated precipitation. In Passagem, during the entire year, the rain falls for 120.2 days and collects up to 453mm (17.83") of precipitation.

Daylight

The month with the shortest days is December, with an average of 9.4h of daylight.

Sunshine

The average sunshine in Passagem is 5.6h.

UV index

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for the average person.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. 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.
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FAQ

What is the temperature in December in Passagem?

In December, in Passagem, Portugal, the average high-temperature is 14.5°C (58.1°F), and the average low-temperature is 8.5°C (47.3°F).

What is the average humidity in December in Passagem?

The average relative humidity in December in Passagem is 78%.

How many days does it rain in December in Passagem?

In December, in Passagem, Portugal, the rain falls for 11.4 days. Throughout December, 54mm (2.13") of precipitation is accumulated.

What is the month with the shortest days in Passagem?

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

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

In December, the average length of the day in Passagem, Portugal, is 9.4h.

How many hours of sunshine does Passagem have in December?

In Passagem, Portugal, the average sunshine in December is 5.6h.

When is the lowest UV index in Passagem?

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in Passagem.

What is the UV index intensity in December in Passagem?

The average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in December
Passagem, Portugal

Average temperature in December - Passagem, Portugal
  • Average high temperature in December: 14.5°C

The warmest month (with the highest average high temperature) is August (26.8°C).
The month with the lowest average high temperature is January (13.8°C).

  • Average low temperature in December: 8.5°C

The month with the highest average low temperature is July (15.9°C).
The coldest month (with the lowest average low temperature) is February (7.8°C).

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Average pressure in December
Passagem, Portugal

Average pressure in December - Passagem, 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 (1015.4mbar).

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Average wind speed in December
Passagem, Portugal

Average wind speed in December - Passagem, Portugal
  • Average wind speed in December: 13.1km/h

The windiest month (with the highest average wind speed) is February (14.8km/h).
The calmest month (with the lowest average wind speed) is September (11km/h).

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Average humidity in December
Passagem, Portugal

Average humidity in December - Passagem, Portugal
  • Average humidity in December: 78%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is September (70%).

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Average rainfall in December
Passagem, Portugal

Average rainfall in December - Passagem, Portugal
  • Average rainfall in December: 54mm

The wettest month (with the highest rainfall) is November (74mm).
The driest month (with the least rainfall) is July (5mm).

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Average rainfall days in December
Passagem, Portugal

Average rainfall days in December - Passagem, Portugal
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is November (14.8 days).
The month with the least rainy days is August (3.1 days).

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

Average daylight in December / Average sunshine in December - Passagem, Portugal
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 5.6h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is January (Average sunshine: 5.2h).

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Average sunshine days in December
Passagem, Portugal

Average sunshine days in December - Passagem, Portugal
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is August (25.4 days).
Months with the least sunshine days are April and November (13.9 days).

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Average UV index in December
Passagem, Portugal

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

The month with the highest UV index is August (UV index 6).
Months with the lowest UV index are January, February and December (UV index 3).

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Average cloud cover in December
Passagem, Portugal

Average cloud cover in December - Passagem, Portugal
  • Average cloud cover in December: 38

The month with the most cloud cover is January (Cloud cover 43).
Months with the least cloud cover are August and September (Cloud cover 21).

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Average visibility in December
Passagem, Portugal

Average visibility in December - Passagem, Portugal
  • Average visibility in December: 10km

Months with the highest visibility are February, June and December (10km).
Months with the lowest visibility are January, March, April, May, July, August, September, October and November (9km).

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