January weather forecast
Cacia, Portugal

January

Weather in January

January, like December, is another mild winter month in Cacia, Portugal, with temperature in the range of an average low of 7.8°C (46°F) and an average high of 13.3°C (55.9°F).

Temperature

The coldest month is January, with an average high-temperature of 13.3°C (55.9°F) and an average low-temperature of 7.8°C (46°F).

Humidity

The most humid month is January, with an average relative humidity of 81%.

Rainfall

In Cacia, in January, during 14.5 rainfall days, 78mm (3.07") of precipitation is typically accumulated. Throughout the year, in Cacia, there are 125.8 rainfall days, and 623mm (24.53") of precipitation is accumulated.

Daylight

In Cacia, the average length of the day in January is 9h and 39min.
On the first day of the month, sunrise is at 07:58 and sunset at 17:17. On the last day of January, sunrise is at 07:45 and sunset at 17:49 WET.

Sunshine

With an average of 5.2h of sunshine, January has the least sunshine of the year.

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 estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 3 during January translates into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.

Frequently asked questions

What month is the coldest?
Cacia's January weather reaches an average high of 13.3°C (55.9°F) and an average low of 7.8°C (46°F), making it the coldest month.
What is the average January temperature?
In Cacia, 13.3°C (55.9°F) is the average high-temperature and 7.8°C (46°F) is the average low-temperature during January.
What is the most humid month?
The most humid month is January, with an average relative humidity of 81%.
What is the average humidity in January?
In Cacia, the average relative humidity in January is 81%.
How many days does it rain in January?
In January, the rain falls for 14.5 days. Throughout January, 78mm (3.07") of precipitation is accumulated.
How many hours of daylight does Cacia have in January?
In January, the average day length is 9h and 39min.
What time are sunrise and sunset in January?
In January, on the first day of the month, sunrise is at 07:58 and sunset at 17:17. On the last day of the month, sunrise is at 07:45 and sunset at 17:49 WET.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 5.2h of sunshine.
How many hours of sunshine does Cacia have in January?
In Cacia, the average sunshine duration in January is 5.2h.
What are the months with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.
What is the UV index reading in January?
The average daily maximum UV index in January is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January
Cacia, Portugal
  • Average high temperature in January: 13.3°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 January: 7.8°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).

Average pressure in January
Cacia, Portugal
  • Average pressure in January: 1022mbar

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

Average wind speed in January
Cacia, Portugal
  • Average wind speed in January: 12.3km/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 (9.9km/h).

Average humidity in January
Cacia, Portugal
  • Average humidity in January: 81%

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

Average rainfall in January
Cacia, Portugal
  • Average rainfall in January: 78mm

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

Average rainfall days in January
Cacia, Portugal
  • Average rainfall days in January: 14.5 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).

Average daylight in January /
Average sunshine in January
Cacia, Portugal
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in January
Cacia, Portugal
  • Average sunshine days in January: 15 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).

Average UV index in January
Cacia, Portugal
  • Average UV index in January: 3

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

Average cloud cover in January
Cacia, Portugal
  • Average cloud cover in January: 43

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

Average visibility in January
Cacia, Portugal
  • Average visibility in January: 9km

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

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