Weather in Aachen

Find out the current weather in Aachen right now. In this section, you will find the latest data, forecasts, and useful weather charts to make your stay in the city as comfortable as possible.

The climate in Aachen, located in Germany, can be characterised as temperate. The city experiences a change of four distinct seasons, each with its own weather features, which is important to consider when planning a trip. Temperature fluctuations throughout the year are noticeable but without extreme values, which is typical for the temperate climate zone.

Winters in Aachen (from December to February) are quite cool, with average temperatures around 3.6°C - 5.2°C, and are the period with the highest number of days with precipitation, although the precipitation itself is not heavy. Summer (from June to August) is warm and pleasant, average temperatures rise to 17.6°C - 19.0°C, while maximum values can reach 22-23°C. Spring (March-May) and autumn (September-November) are transitional seasons with gradual temperature changes, also characterised by frequent but small amounts of precipitation.

One of the distinctive features of the weather in Aachen is the significant number of days with precipitation throughout the year – on average from 12 to 19 days per month. However, the total amount of monthly precipitation remains quite modest, usually within 2-3 mm. This means that although heavy and prolonged downpours are rare here, tourists should be prepared for frequent drizzle or light rain at almost any time of the year, so having an umbrella or a raincoat will be useful.

In Aachen, located in Germany, a temperate climate is observed with noticeable seasonal temperature changes. Throughout the year, average temperatures fluctuate from a cool 3.6°C in January, which is the coldest month, to a comfortable 19.0°C in August, traditionally the warmest period. Minimum night temperatures in winter, for example, in January, can drop on average to 1.5°C, while maximum day temperatures in summer, in August, reach an average of 23.3°C.

Summer months in Aachen, especially June, July, and August, are characterised by pleasant warmth. Average daily maximum temperatures are usually in the range of 22.2°C to 23.3°C, creating comfortable conditions for walks and active recreation. Nights bring refreshing coolness, with temperatures dropping on average to 13.0°C - 14.7°C. The difference between day and night temperatures in summer is quite perceptible, amounting to about 8-9 degrees, which ensures comfortable sleep after warm days.

Winter in Aachen, covering December, January, and February, is distinguished by cool weather, but typically without severe and prolonged frosts. Average temperatures during this period fluctuate from 3.6°C to 5.2°C. Night minimums usually remain above freezing, averaging from 1.5°C to 2.8°C, although occasional frosts are not excluded. Daytime maximums in winter months are around 5.7°C to 8.2°C. Daily temperature fluctuations in winter are less pronounced than in summer and amount to approximately 4-6 degrees.

The climate of Aachen is characterised by a fairly even distribution of precipitation throughout the year, without clearly defined wet or dry seasons. A peculiarity is that the total monthly rainfall is small, yet it falls quite often, predominantly in the form of light rain or drizzle.

Speaking of volume, the highest amount of precipitation, about 3 mm per month, falls in January, February, June, October, and December. In other months, this figure is about 2 mm. In terms of frequency, the "wettest" months are December, when precipitation is observed on average for 19 days, and January with 17 rainy or snowy days. The lowest number of days with precipitation, about 12, is noted in June and September, but even during these periods, the probability of catching a light rain remains.

In the cold season, especially in January (average temperature about 3.6°C) and December (average temperature about 4.8°C), precipitation can fall not only as rain but also as snow or sleet, albeit in small quantities. In spring, summer, and autumn, these are usually light and short-lived rains. Considering that only 2-3 mm of precipitation falls per month, distributed over a large number of days, the intensity of precipitation is usually low.

When planning a trip to Aachen, it is important to consider its temperate maritime climate with fairly frequent precipitation throughout the year. The key moment when packing your suitcase will be the principle of layering. Regardless of the season, be sure to take comfortable waterproof shoes for walking around the city, as the number of days with precipitation ranges from 12 to 19 per month. A compact umbrella or a light waterproof jacket will become your faithful companions at almost any time of the year.

If your trip falls during the cold period, from late autumn to early spring (approximately from October to April), when average temperatures range from 3.6°C to 9.6°C, and night temperatures can drop to 1.5°C, pay special attention to warm clothing. You will need warm sweaters, trousers, a winter jacket (especially from December to February), a hat, a scarf, and gloves. Given the frequent precipitation, waterproof outerwear and footwear will be especially relevant. Rains are not uncommon in these months, so protection from moisture and wind is extremely important.

For travel in warmer months, from May to September, when the average temperature rises from 13.3°C to 19.0°C, and the maximum can reach 23°C, you can pack lighter items: t-shirts, light trousers, or shorts. However, do not forget about the variability of the weather. A light jacket, cardigan, or fleece sweater will come in handy for cool evenings or in case of a sudden cold snap. And, of course, even in summer, do not neglect light rain protection. On sunny summer days, do not forget sunscreen and sunglasses.