January weather forecast and climate
Lisbon, Portugal

The beautiful hillside city of Lisbon in Portugal, with a high, far view of the Sao Jorge Castle
The beautiful hillside city of Lisbon in Portugal, with a high, far view of the Sao Jorge Castle
January, like December, is another mild winter month in Lisbon, Portugal, with average temperature ranging between min 8.3°C (46.9°F) and max 14.8°C (58.6°F).

Temperature

The coldest month is January, with an average high-temperature of 14.8°C (58.6°F) and an average low-temperature of 8.3°C (46.9°F).

Rainfall

In Lisbon, in January, it is raining for 14 days, with typically 99.9mm (3.93") of accumulated precipitation. Throughout the year, there are 112 rainfall days, and 774mm (30.47") of precipitation is accumulated.

Sea temperature

In January, the average sea temperature in Lisbon is 15.8°C (60.4°F).
Note: Swimming in 15.8°C (60.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

In Lisbon, the average length of the day in January is 9.8h.

Sunshine

Months with the least sunshine in Lisbon are January, February, November and December, with an average of 5h of sunshine.

UV index

Months with the lowest UV index in Lisbon, Portugal, are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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.

What is the coldest month in Lisbon?

With an average high-temperature of 14.8°C (58.6°F) and an average low-temperature of 8.3°C (46.9°F), January is the coldest month.

What is the temperature in January in Lisbon?

In January, in Lisbon, Portugal, the average high-temperature is 14.8°C (58.6°F), and the average low-temperature is 8.3°C (46.9°F).

How much does it rain in Lisbon in January?

In Lisbon, during January, the rain falls for 14 days and regularly aggregates up to 99.9mm (3.93") of precipitation.

What is the sea temperature in January in Lisbon?

In January, the average sea temperature in Lisbon is 15.8°C (60.4°F). Swimming in 15.8°C (60.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Lisbon have in January?

The average length of the day in January in Lisbon, Portugal, is 9.8h.

What is the month with the least sunshine in Lisbon?

Months with the least sunshine in Lisbon, Portugal, are January, February, November and December, with an average of 5h of sunshine.

How many hours of sunshine does Lisbon have in January?

The average sunshine in January in Lisbon is 5h.

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

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Lisbon.

What is the UV index intensity in January in Lisbon?

In January, the average daily maximum UV index in Lisbon, Portugal, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in January - Lisbon, Portugal
  • Average high temperature in January: 14.8°C

The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (14.8°C).

  • Average low temperature in January: 8.3°C

The month with the highest average low temperature is August (18.6°C).
The coldest month (with the lowest average low temperature) is January (8.3°C).

Average rainfall in January - Lisbon, Portugal
  • Average rainfall in January: 99.9mm

The wettest month (with the highest rainfall) is November (127.6mm).
The driest month (with the least rainfall) is July (4.2mm).

Average rainfall days in January - Lisbon, Portugal
  • Average rainfall days in January: 14 days

Months with the highest number of rainy days are January, February and December (14 days).
Months with the least rainy days are July and August (2 days).

Average sea temperature in January - Lisbon, Portugal
  • Average sea temperature in January: 15.8°C

The best month for swimming (with the highest average sea temperature) is September (19.9°C).
The coldest month (with the lowest average sea temperature) is March (15.1°C).

Average daylight in January / Average sunshine in January - Lisbon, Portugal
  • Average daylight in January: 9.8h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in January: 5h

Months with the most sunshine are July and August (Average sunshine: 11h).
Months with the least sunshine are January, February, November and December (Average sunshine: 5).

Average UV index in January - Lisbon, Portugal
  • Average UV index in January: 2

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January and December (UV index 2).