Ulm

Planning a trip to Ulm or already there? Get the latest weather updates! In this section, you'll find current weather data and forecasts to help you plan your day.

The climate in Ulm, located in Germany, is temperate, with four distinct seasons. The city experiences noticeable temperature fluctuations throughout the year, allowing tourists to enjoy a variety of weather conditions depending on when they visit. Generally, the weather is characterized by a transition from warm summer months to cool and cold winter ones.

Summer, especially in July and August, offers the warmest weather with average temperatures around 18.7°C and maximums reaching 23-24°C. This is a comfortable time for walking and sightseeing. In contrast, winters are quite cold: in January and December, the average temperature hovers around 1-2°C, and minimum temperatures often drop below freezing. Precipitation is relatively evenly distributed throughout the year, while the number of wet days (from 12 to 17 per month) indicates frequent but usually not overly heavy rain or snow during the winter period.

Spring (March–May) and autumn (September–November) are transitional seasons with gradual temperature changes. In spring, nature comes alive, and temperatures steadily rise from cool to moderately warm. Autumn brings a gradual cooling. May and August stand out with slightly higher precipitation (4 mm), while December has the highest number of precipitation days (17 days), which is worth considering when planning your trip and choosing your wardrobe.

The climate in Ulm is characterized by a distinct change of seasons, offering various temperature conditions throughout the year. The coldest month is usually January, when average temperatures range from -1.5°C at night to 3.6°C during the day. December and February are slightly warmer, where the thermometer also frequently drops below zero, especially during the night hours. The warmest months are July and August, with an average temperature of about 18.7°C. During this period, daily highs reach an average of 23.4°C - 23.5°C, and night lows drop to 13.8°C - 14.0°C.

Summer months in Ulm, from June to August, generally provide pleasantly warm weather. Daytime temperatures rise to an average of 22-24°C, creating comfortable conditions for walking and outdoor activities. Evenings and nights bring a noticeable coolness: the air temperature can drop to 12-14°C. This difference between day and night temperatures, which is about 9-10°C, is a characteristic feature of the summer period in the city, so a light jacket or sweater may come in handy for evening outings.

Winter in Ulm, covering December, January, and February, brings cool and sometimes frosty weather. Average daily temperatures hover around 1-3°C. At night, the air temperature regularly drops below zero, especially in January (to an average of -1.5°C). Daytime highs in the winter months usually do not exceed 3-6°C. Although the temperature difference between day and night in winter is less pronounced than in summer (about 5-7°C), the feeling of cold can be intensified by humidity and wind. Transitional seasons—spring and autumn—are marked by gradual temperature changes, with noticeable fluctuations between day and night figures, especially in April and October.

Precipitation in Ulm is distributed fairly evenly throughout the year, and there is no clearly defined dry or rainy season. The city is characterized by frequent but generally not very heavy precipitation. Based on monthly average data, the total amount of precipitation in millimeters is low, indicating that heavy downpours or prolonged snowfall are rare; light rain or light snow is more likely.

Winter months, especially December and January, bring the highest number of precipitation days (17 and 14 days, respectively). Given the low average temperatures during this period (around 1.1°C to 1.8°C, with minimum temperatures below freezing), precipitation often falls as snow or sleet. December and January each see 3 mm of precipitation. February is also cold, with 13 days of precipitation and 2 mm of rainfall, which also suggests the possibility of snow.

With the arrival of spring and through the summer months, the nature of precipitation changes primarily to rain. May, June, and August stand out as the months with the highest volume of precipitation (4 mm each). At the same time, May is one of the leaders in terms of the number of precipitation days—an average of 16 days. In June and August, precipitation is also frequent, occurring about 14–15 days per month. July is slightly drier in terms of volume (3 mm) but also has about 14 rainy days.

The lowest amount of precipitation in millimeters (2 mm each) is observed in February, March, April, as well as in the autumn months of September, October, and November. However, even during these periods, the number of days with precipitation remains significant, varying from 12 days in April and September to 14 days in November. This confirms that in Ulm, you should be prepared for precipitation at almost any time of year, although its intensity is usually moderate.

When planning a trip to Ulm, it's important to choose the right wardrobe to stay comfortable in any weather. The climate here is temperate, but with a significant number of rainy days throughout the year, so layering will be your best friend. Regardless of the season, be sure to bring comfortable walking shoes, as Ulm is a great city to explore on foot. A lightweight folding umbrella or raincoat will also come in handy, given the frequent, though not always heavy, precipitation.

If your trip falls during the cold season—from late autumn to early spring (roughly from November to March), when average temperatures range from 1°C to 5°C and night temperatures can drop below freezing—pay special attention to warm clothing. You'll need sweaters or fleeces, a warm waterproof and windproof jacket, a hat, gloves, and a scarf. Waterproof shoes will also be an advantage, especially in December when the number of rainy days reaches its peak.

During the warmer months, from May to September, the weather in Ulm becomes significantly more pleasant, with average temperatures ranging from 12°C to nearly 19°C in July and August. Lightweight clothing such as T-shirts, shirts, shorts, or light trousers will be comfortable during the day. However, evenings can be cool, so a light jacket, cardigan, or sweater won't go amiss. Despite the warmer weather, don't forget the possibility of rain, especially in May, June, and August, when the number of wet days remains high. Sunscreen and a hat will be useful on clear summer days.