January weather - Winter 2025

Weather in January
Frequently asked questions
Average temperature in January
Average pressure in January
Average wind speed in January
Average humidity in January
Average rainfall in January
Average rainfall days in January
Average snowfall in January
Average snowfall days in January
Average sea temperature in January
Average daylight in January
Average sunshine in January
Average sunshine days in January
Average UV index in January
Average cloud cover in January
Average visibility in January

The artistic Park Gull designed by Gaudi in Barcelona, Spain

Weather in January

January in Barcelona, Spain, exhibits fairly mild winters with an average high temperature of 12.4°C (54.3°F) and an average low of 7.4°C (45.3°F). The start of the year in this Mediterranean city is characterized by relatively low rainfall of 40mm (1.57") across 8.5 days. Compared to December, January is slightly cooler in temperature and experiences a small drop in rainfall. The weather pattern signifies the winter season in full swing, albeit mild, with an oceanic chill and moderate rain showers. Snowfall is fairly uncommon, with a mere 1mm (0.04") recorded for the month.

Temperature

January tends to be the coldest month, with temperatures averaging a daily high of 12.4°C (54.3°F) and a low of 7.4°C (45.3°F).

Humidity

In January, the average relative humidity in Barcelona is 69%.

Rainfall

In January, in Barcelona, the rain falls for 8.5 days. Throughout January, 40mm (1.57") of precipitation is accumulated. In Barcelona, during the entire year, the rain falls for 117.9 days and collects up to 435mm (17.13") of precipitation.

Snowfall

January, February and September are months with snowfall in Barcelona. The months with the most snowfall in Barcelona are January, February and September, with an average 1mm (0.04") of accumulated snow.

Sea temperature

In Barcelona, in January, the average water temperature is 13.4°C (56.1°F).
Note: Beware of 13.4°C (56.1°F) waters at 13°C (55.4°F), they're uninviting, and a dip below 10°C (50°F) has risks of breath loss and cold shock, contingent on health.

Daylight

In January, the average length of the day in Barcelona is 9h and 35min.
On the first day of the month, sunrise is at 08:17 and sunset at 17:32. On the last day of January, in Barcelona, sunrise is at 08:03 and sunset at 18:05 CET.

Sunshine

The average sunshine in January is 6.8h.

UV index

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in Barcelona. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In January, the maximum UV index of 3 translates into these guidelines:
Ensure safety - Recommendations to avert sunburn are presented. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.

Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Barcelona?

January, on average, is the coldest month, registering a high temperature of 12.4°C (54.3°F) and a low of 7.4°C (45.3°F).

What is the temperature in January in Barcelona?

Barcelona in January has an average high-temperature of 12.4°C (54.3°F) and an average low-temperature of 7.4°C (45.3°F).

What is the average humidity in January in Barcelona?

The average relative humidity in January is 69%.

How many days does it rain in January in Barcelona?

In Barcelona, during January, the rain falls for 8.5 days and regularly aggregates up to 40mm (1.57") of precipitation.

What is the snowiest month in Barcelona?

The months with the most snowfall in Barcelona, Spain, are January, February and September, with an average 1mm (0.04") of accumulated snow.

When does it start snowing in Barcelona?

January is the first month it typically snows in Barcelona, Spain. Throughout January, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow.

What is the sea water temperature in January in Barcelona?

In January, the average sea temperature in Barcelona, Spain, is 13.4°C (56.1°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

What is the average length of the day in January in Barcelona?

In Barcelona, the average day length in January is 9h and 35min.

When are sunrise and sunset in January in Barcelona?

On the first day of January, sunrise is at 08:17 and sunset at 17:32. On the last day of the month, sunrise is at 08:03 and sunset at 18:05 CET.

How many hours of sunshine does Barcelona have in January?

In January, the average sunshine duration in Barcelona, Spain, is 6.8h.

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

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

What is the UV index reading in January in Barcelona?

In January, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

13.4°C 56.1°F

12.4°C 54.3°F

13.1°C 55.6°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.2km/h 7.6mph

12.8km/h 8mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

0.1

0.2

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

22.9

20.8

18.8

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Barcelona, Spain

Average high temperature in January: 12.4°C

The warmest month (with the highest average high temperature) is August (27.5°C).
The month with the lowest average high temperature is January (12.4°C).

Average low temperature in January: 7.4°C

The month with the highest average low temperature is August (22.1°C).
The coldest month (with the lowest average low temperature) is February (7.1°C).

Average pressure in January
Barcelona, Spain

Average pressure in January: 1018.5mbar

The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).

Average wind speed in January
Barcelona, Spain

Average wind speed in January: 11.8km/h

The windiest month (with the highest average wind speed) is March (12.1km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).

Average humidity in January
Barcelona, Spain

Average humidity in January: 69%

The months with the highest relative humidity are April and October (72%).
The months with the lowest relative humidity are February, June and November (68%).

Average rainfall in January
Barcelona, Spain

Average rainfall in January: 40mm

The wettest month (with the highest rainfall) is October (73mm).
The driest month (with the least rainfall) is February (16mm).

Average rainfall days in January
Barcelona, Spain

Average rainfall days in January: 8.5 days

The month with the highest number of rainy days is September (13.8 days).
The month with the least rainy days is December (6.4 days).

Average snowfall in January
Barcelona, Spain

Average snowfall in January: 1mm

The months with the highest snowfall are January, February and September (1mm).
The months with the least snowfall are March, April, May, June, July, August, October, November and December (0mm).

Average snowfall days in January
Barcelona, Spain

Average snowfall days in January: 0.1 days

The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, October, November and December (0 days).

Average sea temperature in January
Barcelona, Spain

Average sea temperature in January: 13.4°C

The best month for swimming (with the highest average sea temperature) is August (25.3°C).
The coldest month (with the lowest average sea temperature) is February (13.1°C).

Average daylight in January /
Average sunshine in January
Barcelona, Spain

Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

Average sunshine in January: 6h and 5min

The months with the most sunshine are June and July (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in January
Barcelona, Spain

Average sunshine days in January: 20.8 days

The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is September (12.3 days).

Average UV index in January
Barcelona, Spain

Average UV index in January: 3

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in January
Barcelona, Spain

Average cloud cover in January: 28

The month with the most cloud cover is April (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 16).

Average visibility in January
Barcelona, Spain

Average visibility in January: 10km

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

January weather forecast
Barcelona, Spain

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