Climate and monthly weather forecastCologne, Germany

The climate of Cologne

With a categorization in the Köppen climate classification as a Marine West Coast, Warm Summer (Cfb) climate, Cologne finds its place in the heart of Germany. The geographical location bestows Cologne with a climate that patrols mild to cool conditions, and encounters precipitation in every month of the year. The city, snuggled proximate to the Rhine River, experiences a mean annual high temperature that hovers around 15.1°C (59.2°F) and a low-temperature average of 6°C (42.8°F).

An examination of climate data delineates the general weather patterns in the city. The sun graces the city's sky for 5.32 hours per day on average, illuminating the city for relatively longer durations in the summer months. Daylight duration witnesses oscillations, with the shortest daylight of 8 hours per day in winter to a generous 16.4 hours per day in the heart of summer. Rainfall graces the city's landscapes quite evenly throughout all twelfth-parts of the year, with rainfall days oscillating modestly from 14 days to 18 days in a month. The rain gauge records, on average, 72.28 millimeters of precipitation each month.

A noteworthy weather pattern in Cologne is the uniformity in precipitation. Each month sees rainfall, with June recording the highest rainfall of 90.7 millimeters and April experiencing the least precipitation with 53.9 millimeters. As for temperature variations, July tends to run the warmest with an average high of 24.4°C (75.9°F), while January poses as the coldest month with a mean low of -0.6°C (30.9°F).

The best time to visit Cologne

Those who prefer benign weather conditions with moderate temperatures would find the months from May to September most appealing for their visit. The high temperature averages between 19.3°C (66.7°F) to 24°C (75.2°F), while the low temperature ranges from 8.1°C (46.6°F) to 13.2°C (55.8°F) in these months. Clear skies are frequent, with an average daily sunshine of nearly 5.9 hours. Accompanied with robust daylight hours ranging from 15.6 to 16.4 hours, this period simplifies outdoor excursions.

The worst time to visit Cologne

Cologne's weather argues against visitors considering a trip during the months of January and February. During this period, the city is frequently visited by a meager amount of sunlight, averaging 1.4 to 2.6 hours of sunshine per day. Temperatures fluctuate around the freezing point, with average high temperatures of 5.4°C (41.7°F) to 6.7°C (44.1°F) and low temperatures plunging as low as -0.6°C (30.9°F) to -0.7°C (30.7°F). The days are also shorter, with an average of 8 to 10 hours of daylight expected.

Spring weather in Cologne

Spring in Cologne unravels usually mild weather, with temperatures climbing gradually from 10.9°C (51.6°F) in March to 19.3°C (66.7°F) in May. The mercury in the night thermometer dances between 2°C (35.6°F) to 8.1°C (46.6°F). Precipitation is moderate, with rainfall ranging from 53.9 millimeters in April to 72.2 millimeters in May. Sunlight hours increase, brightening the city for 3.3 hours in March and up to 5.9 hours in May.

Summer weather in Cologne

Summer carries Cologne into a realm of comfortable warmth. Average high temperatures during June, July, and August fluctuate between 21.9°C (71.4°F) and 24.4°C (75.9°F). Nightly temperatures rarely drop below 11°C (51.8°F). Rainfall stays high with the wettest month being June, receiving 90.7 millimeters. Sunny periods expand from 5.9 hours in June to a peak of 5.9 hours in July, followed by a slight decrease to 5.8 hours in August.

Autumn weather in Cologne

Autumn denotes a transition in Cologne's weather pattern with temperatures slipping from 19.8°C (67.6°F) in September to 9.5°C (49.1°F) in November during the day. Similarly, nighttime temperatures fall from 9.8°C (49.6°F) in September to 3.1°C (37.6°F) in November. The amount of sunshine decrements from 4.5 to 1.8 hours per day. Rainfall remains steady with a little over 70 millimeters per month through the season.

Winter weather in Cologne

Winter grips Cologne in its cold embrace as temperatures plummet. Daytime temperatures explore the realm from 5.9°C (42.6°F) in December to a chilly 5.4°C (41.7°F) in January. The nights witness thermometers dipping to freezing temperatures from 0.4°C (32.7°F) to -0.6°C (30.9°F). Sunshine is at its annual low, offering just 1.3 to 1.4 hours of brightness daily. The rainfall gauge sees a rise in readings as it captures between 67 millimeters and 71.1 millimeters of precipitation. Winter days are shortest, yielding only 8 to 9 hours of daylight.

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). Weather in January »

Weather in February

February carries on with the winter season, with lingering cold temperatures, yet gives a sneak peek of the bright days to come. The average high temperature increases slightly from 5.4°C (41.7°F) in January to 6.7°C (44.1°F) and daylight extends to a longer 10 hours. Weather in February »

Weather in March

March marks the start of the transitional season from winter to spring. Cologne welcomes a slight upswing in the weather as temperatures rise to an average high of 10.9°C (51.6°F). The days stretch, offering almost 12 hours of daylight, allowing more exploration time for city visitors. Weather in March »

Weather in April

In April, the vibe of spring permeates through every corner of Cologne. The month witnesses a swift jump in the average high temperature to 15.1°C (59.2°F), reflective of a pleasant weather boost. It is the beginning of the leisurely outdoor season, with city-dwelling locals and tourists flocking to bustling streets, cafes and parks. Weather in April »

Weather in May

May's arrival blankets Cologne in definitive warmth. The high temperature stretches to an average of 19.3°C (66.7°F), accompanied by a moderate rise in the number of daylight hours to 15.6. It emphasizes the warm welcome of summer in the city with abundant sunshine, but sees a significant upturn in the rainfall to 72mm (2.83"). Weather in May »

Weather in June

June ushers in summer's peak in Cologne, making it the brightest month with the year's longest daylight duration with 16.4 hours. Owing to the high temperature reaching up to 21.9°C (71.4°F), locals enjoy outdoor activities and tourists revel in city exploration. Weather in June »

Weather in July

The pinnacle of the summer season manifests in July where temperatures soar to the peak of 24.4°C (75.9°F). Cologne basks in delightful sunny hours fitting for outdoor attractions and leisurely strolls around its historic sites. Weather in July »

Weather in August

In August, summer slowly starts to lose its hold in Cologne. The highest average temperature slightly dips to 24°C (75.2°F), marking a subtle transition into the more comfortable climes of fall. However, the sun continues to shower its warm rays for 5.8 hours daily, and the 12.6°C (54.7°F) nighttime temperatures add to the charm of al fresco dining and evening walks. Weather in August »

Weather in September

Fall steps into Cologne in September with a noticeable shift in the weather. An average high temperature of 19.8°C (67.6°F) indicates the slow onset of cooler days. The arrival of autumn leaves paint the city in hues of warm gold, red and orange, a sight to behold. Weather in September »

Weather in October

As October rolls in, Cologne gets wrapped in the heart of fall. The temperature experiences a severe drop falling to an average high of just 15.1°C (59.2°F), signalling the stark departure from the warmth of summer. October's overcast sky showers the city in a serene ambiance, with the richly decorated autumn foliage adding a layer of charm. Weather in October »

Weather in November

November, the last month of the autumn in Cologne, is chilly month, with an average temperature varying between 3.1°C (37.6°F) and 9.5°C (49.1°F). As October shifts into November, a slight alteration in temperatures is observed, with average highs reducing from a mild 15.1°C (59.2°F) to a chilly 9.5°C (49.1°F). Weather in November »

Weather in December

Winter announces its arrival in full fervour in December with Cologne dropping to average high temperatures of just 5.9°C (42.6°F). The city decks up for Christmas, turning into a winter wonderland bedecked with lights and festivities, despite 71mm (2.8") of rainfall. Weather in December »