December weather forecast and climate
Ribeira de Moinhos, Portugal

Weather in December

December, the first month of the winter, in Ribeira de Moinhos, is still a comfortable month, with average temperature ranging between min 12.5°C (54.5°F) and max 16°C (60.8°F).

Temperature

In December, the average high-temperature is relatively the same as in November - a still enjoyable 16°C (60.8°F). In December, in Ribeira de Moinhos, the average low-temperature is 12.5°C (54.5°F).

Humidity

In December, the average relative humidity in Ribeira de Moinhos is 74%.

Rainfall

In December, the rain falls for 9.4 days. Throughout December, 42mm (1.65") of precipitation is accumulated. Throughout the year, there are 94.6 rainfall days, and 327mm (12.87") of precipitation is accumulated.

Daylight

The month with the shortest days in Ribeira de Moinhos is December, with an average of 9.6h of daylight.

Sunshine

In December, the average sunshine is 6.2h.

UV index

Months with the lowest UV index are January through April, November and December, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 4 transform into the following instructions:
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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
[Resources]

FAQ

What is the temperature in December in Ribeira de Moinhos?

In December, in Ribeira de Moinhos, Portugal, the average high-temperature is 16°C (60.8°F), and the average low-temperature is 12.5°C (54.5°F).

What is the average humidity in December in Ribeira de Moinhos?

The average relative humidity in December is 74%.

How many days does it rain in December in Ribeira de Moinhos?

In Ribeira de Moinhos, in December, it is raining for 9.4 days, with typically 42mm (1.65") of accumulated precipitation.

What is the month with the shortest days in Ribeira de Moinhos?

December has the shortest days of the year in Ribeira de Moinhos, Portugal, with an average of 9.6h of daylight.

How many hours of daylight does Ribeira de Moinhos have in December?

In December, the average length of the day is 9.6h.

How many hours of sunshine does Ribeira de Moinhos have in December?

The average sunshine in December is 6.2h.

What is the month with the lowest UV index in Ribeira de Moinhos?

Months with the lowest UV index in Ribeira de Moinhos are January through April, November and December, with an average maximum UV index of 4.

What is the UV index intensity in December in Ribeira de Moinhos?

In Ribeira de Moinhos, the average daily maximum UV index in December is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.

Average temperature in December
Ribeira de Moinhos, Portugal

Average temperature in December - Ribeira de Moinhos, Portugal
  • Average high temperature in December: 16°C

The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is February (14.8°C).

  • Average low temperature in December: 12.5°C

Months with the highest average low temperature are August and September (18.8°C).
The coldest month (with the lowest average low temperature) is February (10.8°C).

[Resources]

Average pressure in December
Ribeira de Moinhos, Portugal

Average pressure in December - Ribeira de Moinhos, 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 (1015.7mbar).

[Resources]

Average wind speed in December
Ribeira de Moinhos, Portugal

Average wind speed in December - Ribeira de Moinhos, Portugal
  • Average wind speed in December: 18km/h

The windiest month (with the highest average wind speed) is February (19.4km/h).
The calmest month (with the lowest average wind speed) is September (15.1km/h).

[Resources]

Average humidity in December
Ribeira de Moinhos, Portugal

Average humidity in December - Ribeira de Moinhos, Portugal
  • Average humidity in December: 74%

The month with the highest relative humidity is April (76%).
The month with the lowest relative humidity is October (72%).

[Resources]

Average rainfall in December
Ribeira de Moinhos, Portugal

Average rainfall in December - Ribeira de Moinhos, Portugal
  • Average rainfall in December: 42mm

The wettest month (with the highest rainfall) is November (56mm).
The driest month (with the least rainfall) is July (1mm).

[Resources]

Average rainfall days in December
Ribeira de Moinhos, Portugal

Average rainfall days in December - Ribeira de Moinhos, Portugal
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is November (13.4 days).
The month with the least rainy days is August (1.1 days).

[Resources]

Average daylight in December /
Average sunshine in December
Ribeira de Moinhos, Portugal

Average daylight in December / Average sunshine in December - Ribeira de Moinhos, Portugal
  • Average daylight in December: 9.6h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in December: 6.2h

The month with the most sunshine is July (Average sunshine: 11.5h).
The month with the least sunshine is January (Average sunshine: 5.7h).

[Resources]

Average sunshine days in December
Ribeira de Moinhos, Portugal

Average sunshine days in December - Ribeira de Moinhos, Portugal
  • Average sunshine days in December: 20.4 days

The month with the most sunshine days is August (29.4 days).
The month with the least sunshine days is April (15.3 days).

[Resources]

Average UV index in December
Ribeira de Moinhos, Portugal

Average UV index in December - Ribeira de Moinhos, Portugal
  • Average UV index in December: 4

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are January, February, March, April, November and December (UV index 4).

[Resources]

Average cloud cover in December
Ribeira de Moinhos, Portugal

Average cloud cover in December - Ribeira de Moinhos, Portugal
  • Average cloud cover in December: 31

The month with the most cloud cover is January (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 10).

[Resources]

Average visibility in December
Ribeira de Moinhos, Portugal

Average visibility in December - Ribeira de Moinhos, Portugal
  • Average visibility in December: 10km

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

[Resources]