January weather forecast
Cologne, Germany

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Weather in January

The first month of the year in Cologne, Germany typically features chilly temperatures, resulting in a frosty landscape. Compared to December, the low temperature in January is slightly lower, dropping into negative territory at -0.6°C (30.9°F). This icy weather combined with overcast skies, turns Cologne into a winter wonderland. With just 8.5 hours of daylight and only about 1.4 hours of actual sunshine, it is one of the darker months of the year. The trend of chilly temperatures continues into February, though precipitation moderates slightly.

Temperature

January is the month when Cologne sees the lowest average temperatures, with a high of 5.4°C (41.7°F) and a low of -0.6°C (30.9°F).

Rainfall

In January, the rain falls for 18 days. Throughout January, 62mm (2.44") of precipitation is accumulated. In Cologne, during the entire year, the rain falls for 192 days and collects up to 839mm (33.03") of precipitation.

Daylight

In Cologne, the average length of the day in January is 8h and 32min.
On the first day of January in Cologne, sunrise is at 08:34 and sunset at 16:36. On the last day of the month, sunrise is at 08:10 and sunset at 17:20 CET.

Sunshine

In Cologne, the average sunshine in January is 1.4h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In January, a regular UV index of 1 translates into these guidelines:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

What month is the coldest in Cologne?

Cologne's coldest temperatures are experienced in January, with average high temperatures of 5.4°C (41.7°F) and lows of -0.6°C (30.9°F).

How cold is it in Cologne in January?

The average high-temperature and low-temperature in Cologne during January are 5.4°C (41.7°F) and -0.6°C (30.9°F) respectively.

How many days does it rain in January in Cologne?

In January, in Cologne, the rain falls for 18 days. Throughout January, 62mm (2.44") of precipitation is accumulated.

How many hours of daylight does Cologne have in January?

In January, the average day length in Cologne, Germany, is 8h and 32min.

What time are sunrise and sunset in January in Cologne?

On the first day of January, sunrise is at 08:34 and sunset at 16:36. On the last day of the month, sunrise is at 08:10 and sunset at 17:20 CET.

How many hours of sunshine does Cologne have in January?

The average sunshine duration in January in Cologne, Germany, is 1.4h.

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

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.

What is the UV index intensity in January in Cologne?

In January, the average daily maximum UV index in Cologne, Germany, is 1. A UV Index reading of 2, and below, represents a low health risk from exposure to Sun's UV rays.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in January
Cologne, Germany

Average temperature in January - Cologne, Germany
  • Average high temperature in January: 5.4°C

The warmest month (with the highest average high temperature) is July (24.4°C).
The month with the lowest average high temperature is January (5.4°C).

  • Average low temperature in January: -0.6°C

The month with the highest average low temperature is July (13.2°C).
The coldest month (with the lowest average low temperature) is February (-0.7°C).

Average rainfall in January
Cologne, Germany

Average rainfall in January - Cologne, Germany
  • Average rainfall in January: 62.1mm

The wettest month (with the highest rainfall) is June (90.7mm).
The driest month (with the least rainfall) is April (53.9mm).

Average rainfall days in January
Cologne, Germany

Average rainfall days in January - Cologne, Germany
  • Average rainfall days in January: 18 days

The months with the highest number of rainy days are January and December (18 days).
The month with the least rainy days is February (14 days).

Average daylight in January /
Average sunshine in January
Cologne, Germany

Average daylight in January / Average sunshine in January - Cologne, Germany
  • Average daylight in January: 8h and 3min

The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).

  • Average sunshine in January: 1h and 2min

The months with the most sunshine are May, June and July (Average sunshine: 5h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).

Average UV index in January
Cologne, Germany

Average UV index in January - Cologne, Germany
  • Average UV index in January: 1

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 1).

Cologne, Germany

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