Cologne, Germany skyline

Cologne Weather in January

The usual January conditions in Cologne, Germany, drawn from 2006–2025 records.

Cologne in January: highs near 5.5°C (41.9°F), lows near 0.8°C (33.4°F), roughly 15 rainy days adding up to 88 mm, and 3.7 hours of sunshine on an average day.

Avg high

5.5°C (41.9°F)

Avg low

0.8°C (33.4°F)

Rainfall

88 mm (3.5 in)

Rainy days

15 days

Sunshine

3.7 h / day

Humidity

85%

January vs the rest of the year

No month in Cologne is cooler than January; for rain it is the 3rd wettest month.

MonthAvg highvs JanuaryRainRainy days
January5.5°C (41.9°F)—88 mm15
February7.2°C (45°F)+1.7°C (+3.1°F)68 mm13
March10.6°C (51.1°F)+5.1°C (+9.2°F)70 mm13
April14.9°C (58.8°F)+9.4°C (+16.9°F)51 mm10
May18.6°C (65.5°F)+13.1°C (+23.6°F)73 mm12
June22.2°C (72°F)+16.7°C (+30.1°F)76 mm12
July23.9°C (75°F)+18.4°C (+33.1°F)91 mm13
August23.4°C (74.1°F)+17.9°C (+32.2°F)82 mm12
September20°C (68°F)+14.5°C (+26.1°F)70 mm10
October15.3°C (59.5°F)+9.8°C (+17.6°F)73 mm13
November9.9°C (49.8°F)+4.4°C (+7.9°F)82 mm14
December6.7°C (44.1°F)+1.2°C (+2.2°F)93 mm16

What January feels like in Cologne

January is the coldest stretch of winter in Cologne. Daytime temperatures stay cold, and a warm coat is needed even in the middle of the day. There is little difference between day and night: nights hover around freezing, so frost is common, and evenings feel much like the afternoon. Moisture in the air gives the cold a damp edge.

Rain in Cologne in January

Rain is part of normal life this month, falling on about every other day. A rainy day brings about 5.8 mm (0.2 in) on average — steady rain rather than a passing shower. That is close to Cologne's typical rain per wet day for the whole year (about 6 mm). It is among the three wettest months of the year.

Daylight and sunshine in January

On 15 January the sun rises at about 8:29 am and sets around 4:53 pm local time, giving 8 h 24 min of daylight. The days are stretching out — 25 min more daylight than mid-December. About 44% of daylight hours are sunny; in short, sun and cloud share the day.

How January compares to the rest of the year

January is the coolest month of the year in Cologne. Compared with December, afternoons are 1.2°C (2.2°F) cooler, with 5 mm less rain. This is the low point, and February starts to warm up. By February, typical highs are 7.2°C (45°F).

Who January suits

  • Sightseeing: less ideal — it is cold for long walks.
  • Parks & outdoor: less ideal — too cool to sit outside for long.

Tips for visiting Cologne in January

Rain Protection

A compact umbrella and a light waterproof jacket.

Warm Layers

A warm jacket, a hat and gloves for cold mornings and evenings.

Quick questions

How warm is Cologne in January?

Expect around 5.5°C (41.9°F) in the afternoon and 0.8°C (33.4°F) at night, which most visitors would call cold.

Does it rain a lot in Cologne in January?

It does: about 15 rainy days bring roughly 88 mm, so plan some indoor options.

What should I wear in Cologne in January?

Based on the averages: rain protection and warm layers. There is little need to change for the evening.

Is January or February better for visiting Cologne?

On our 12-month climate ranking, February comes out ahead (#9 of 12 vs #11). February is warmer and has fewer rainy days.

Is January a good time to visit Cologne?

Fair

Fair — chilly days, frequent rain (about 15 rainy days). Within Cologne's own year, January ranks #11 of 12 — one of the least comfortable months.

January in other Germany cities

Warmer or drier places in January

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Cologne weather by month.