December weather forecast and climate
Rato, Portugal

Weather in December

The first month of the winter, December, is also a moderate month in Rato, Portugal, with average temperature fluctuating between 14.3°C (57.7°F) and 8.6°C (47.5°F).

Temperature

In Rato, the average high-temperature in December is practically the same as in November - a still mild 14.3°C (57.7°F). The average low-temperature, in Rato, is 8.6°C (47.5°F).

Humidity

In Rato, Portugal, the average relative humidity is 79%.

Rainfall

In Rato, in December, during 12.1 rainfall days, 84mm (3.31") of precipitation is typically accumulated. In Rato, during the entire year, the rain falls for 125.4 days and collects up to 619mm (24.37") of precipitation.

Daylight

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

Sunshine

The average sunshine in December is 5.7h.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions - Protection against sun damage is advised. 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.
[Resources]

FAQ

What is the temperature in December in Rato?

In December, in Rato, Portugal, the average high-temperature is 14.3°C (57.7°F), and the average low-temperature is 8.6°C (47.5°F).

What is the average humidity in December in Rato?

In Rato, Portugal, the average relative humidity in December is 79%.

How much does it rain in Rato in December?

In December, the rain falls for 12.1 days. Throughout December, 84mm (3.31") of precipitation is accumulated.

What is the month with the shortest days in Rato?

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

How many hours of daylight does Rato have in December?

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

How long on average sun shines in December in Rato?

In Rato, Portugal, the average sunshine in December is 5.7h.

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

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

What is the UV index reading in December in Rato?

The average daily maximum UV index in December in Rato 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
Rato, Portugal

Average temperature in December - Rato, Portugal
  • Average high temperature in December: 14.3°C

The warmest month (with the highest average high temperature) is August (25.4°C).
The month with the lowest average high temperature is January (13.3°C).

  • Average low temperature in December: 8.6°C

The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (7.6°C).

[Resources]

Average pressure in December
Rato, Portugal

Average pressure in December - Rato, 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).

[Resources]

Average wind speed in December
Rato, Portugal

Average wind speed in December - Rato, Portugal
  • Average wind speed in December: 12km/h

The windiest month (with the highest average wind speed) is February (12.9km/h).
The calmest month (with the lowest average wind speed) is September (9.8km/h).

[Resources]

Average humidity in December
Rato, Portugal

Average humidity in December - Rato, Portugal
  • Average humidity in December: 79%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (70%).

[Resources]

Average rainfall in December
Rato, Portugal

Average rainfall in December - Rato, Portugal
  • Average rainfall in December: 84mm

The wettest month (with the highest rainfall) is November (94mm).
The driest month (with the least rainfall) is July (6mm).

[Resources]

Average rainfall days in December
Rato, Portugal

Average rainfall days in December - Rato, Portugal
  • Average rainfall days in December: 12.1 days

The month with the highest number of rainy days is November (14.9 days).
The month with the least rainy days is August (3.3 days).

[Resources]

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

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

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 5.7h

The month with the most sunshine is July (Average sunshine: 11.3h).
The month with the least sunshine is January (Average sunshine: 5.2h).

[Resources]

Average sunshine days in December
Rato, Portugal

Average sunshine days in December - Rato, Portugal
  • Average sunshine days in December: 17.8 days

The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is November (12.9 days).

[Resources]

Average UV index in December
Rato, Portugal

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

Months with the highest UV index are May, June, July, August and September (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 3).

[Resources]

Average cloud cover in December
Rato, Portugal

Average cloud cover in December - Rato, Portugal
  • Average cloud cover in December: 39

The month with the most cloud cover is January (Cloud cover 43).
Months with the least cloud cover are July, August and September (Cloud cover 19).

[Resources]

Average visibility in December
Rato, Portugal

Average visibility in December - Rato, 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).

[Resources]