Last updated: February 26, 2025
In May, Dortmund experiences a dynamic range of temperatures, with a peak reaching 33°C (91°F), while the average settles around a mild 13°C (56°F) and the temperature occasionally dips to a brisk 0°C (33°F). The month also showcases a significant level of precipitation, totaling approximately 73 mm (2.9 in) across 13 days, contributing to the lush spring scenery. With an average humidity of 77%, residents and visitors can expect a refreshing atmosphere, perfect for exploring the city's vibrant parks and cultural sites while navigating the occasional spring shower.
In May, Dortmund experiences a significant uptick in temperatures, marking a transition into warmer weather. With minimums around 0°C (33°F) and average highs soaring to 33°C (91°F), the month sets the stage for vibrant springtime activities. This leap from the cooler April averages to May's 13°C (56°F) highlights the increasing warmth, encouraging residents and visitors alike to embrace outdoor adventures. As the city shakes off the last remnants of winter, the sunny days invite everyone to relish the blooming parks and bustling street life, characterized by a palpable energy that invigorates the spirit of Dortmund.
In May, Dortmund experiences a moderate precipitation level of 73 mm (2.9 in), which falls into a comfortable range compared to the wetter months earlier in the year. The 13 days of rainfall during this month suggest a balanced distribution, contributing to the lush greenery typical of spring. This slight dip from April's 39 mm signifies a transition, as May often heralds the onset of more stable weather patterns before the summer rains arrive. Interestingly, while May shares a similar amount of precipitation with June and August, it stands out with a relatively higher frequency of rainy days than those months. Overall, May's precipitation pattern reflects Dortmund's typical springtime vibrancy, setting the stage for the warm months ahead.
In May, Dortmund experiences a drop in humidity to 77%, marking a noticeable shift towards drier conditions after the damp winter months. This gradual decline from 91% in January to 84% in April sets the stage for a more comfortable spring. As the city transitions into summer, humidity continues to decrease, reaching its lowest point in July at 72%. This trend reveals a pattern of increasing comfort and livability as the year progresses, with May serving as a key turning point where residents can begin to enjoy the warmer weather without the oppressive stickiness that often accompanies the colder months.
As May unfolds in Dortmund, Germany, the UV Index climbs to 7, marking a shift to a high exposure category. This increase signals that residents and visitors should be more vigilant about sun safety, with a burn time of just 25 minutes. Compared to earlier months, like April's moderate index of 5 and March's index of 4, May's rays are significantly more intense, highlighting the approach of summer. As we transition into June, when the UV Index peaks at 8, it’s crucial to take protective measures, ensuring skin health while enjoying the outdoors. For more detailed information on UV trends throughout the year, explore the Dortmund UV Index.
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As spring unfolds in Dortmund, Germany, May shines with an impressive 385 hours of sunshine, marking a delightful peak that draws visitors and locals outdoors. This month sets the stage for a radiant summer, closely followed by June, which mirrors May's luminous offering. The upward trend from the cold, grey beginnings of winter in January, with a mere 100 hours, to the vibrant glow of May showcases the gradual transition into a season of warmth and vitality. Sunshine hours continue to hold steady into July, where they reach their annual zenith. This sunny escalation emphasizes Dortmund's transformation into a lively hub, where the increase in daylight invites outdoor activities and blossoms in parks, enriching the cultural tapestry of this vibrant city.
In May, Dortmund enjoys a 28% chance of sunny weather, a slight dip compared to the previous months of March and April, which boast higher probabilities of sunshine at 38% and 35% respectively. While May's sunshine chances are comparable to those in June and July, it's evident that the onset of late spring brings a mix of cloudy days alongside the sun. This trend suggests that while outdoor enthusiasts might catch some lovely sunny spells, they should also be prepared for the unpredictable weather that characterizes this transitional month. As summer approaches, the likelihood of sunny days seems to stabilize, indicating a more balanced yet varied climate ahead.
As spring blooms into summer in Dortmund, Germany, May heralds a significant leap in daylight, offering an impressive 15 hours of brightness. This increase follows the gradual extending of daylight hours from a modest 8 hours in January to 13 hours by April, marking a distinct trend towards longer, sunlit days. The month of May stands out as a vibrant peak, before daylight reaches its zenith in June with 16 hours. As the season progresses into summer, residents can fully embrace the longer evenings, reveling in the warmth and light that enhance outdoor activities. However, as daylight begins to taper off with the onset of autumn, May serves as a powerful reminder of nature's cyclical patterns and the joy that comes with each longer day.
In Dortmund, Germany, May brings a refreshing breath of air with an average wind speed of 4.0 m/s (9 mph), slightly higher than the preceding months. After experiencing a steady decline from the winter months’ gusty breezes, which hovered around 4.1 m/s, April's calmness at 3.1 m/s marks a notable dip. However, as spring unfolds, May’s winds pick up the pace, providing a delightful balance between warmth and gentle breezes that rejuvenate the city's atmosphere. This trend of increasing wind speeds continues into the early summer months, only to taper off with the onset of hotter weather in June. Thus, May serves as a pivotal transition, blending the freshness of spring with the anticipation of summer's arrival.
The weather in Dortmund changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Dortmund and find detailed weather information for every month.
May is characterized by significantly warmer temperatures, with averages reaching 13°C (56°F) and highs soaring as high as 33°C (91°F), compared to January's chilly average of 3°C (38°F) and maximum temperatures of just 14°C (57°F). While both months experience similar levels of precipitation—73 mm (2.9 in) in May and 78 mm (3.1 in) in January—January has a slightly higher humidity at 91%, contrasting with May's more moderate 77%. For a detailed look at how the weather shapes up in January, check out Dortmund weather in January.
May and February present contrasting weather patterns in terms of temperature and precipitation. In February, temperatures range from a chilly -16°C (3°F) to a mild 20°C (67°F), with an average of just 4°C (40°F), while May boasts a more varied range, with minimum temperatures of 0°C (33°F) and highs reaching up to 33°C (91°F), averaging around 13°C (56°F). February experiences slightly higher precipitation at 84 mm (3.3 in) over 13 days, compared to May's 73 mm (2.9 in), but May has a higher humidity level at 77% versus 90% in February. For more detailed information on February weather, you can check Dortmund weather in February.
In comparing the weather between March and May, we observe distinct differences in temperature and precipitation. March experiences a cooler climate with average temperatures around 6°C (44°F) and occasional lows dipping to -9°C (16°F), while May brings a warmer atmosphere with average temperatures of 13°C (56°F) and highs reaching 33°C (91°F). Precipitation is slightly higher in March at 85 mm (3.4 in) over about 15 days, compared to 73 mm (2.9 in) in May over 13 days. Additionally, March has a slightly higher humidity level at 87% versus May's 77%. For a closer look at March weather specifics, visit Dortmund weather in March.
In comparing the weather between April and May, it's evident that May brings warmer temperatures, with an average of 13°C (56°F) compared to April's average of 10°C (50°F). The maximum temperature in May can reach up to 33°C (91°F), significantly higher than April's 28°C (82°F). However, May also experiences more precipitation, totaling 73 mm (2.9 in) over 13 days, whereas April sees less rain, with 39 mm (1.6 in) over 9 days. Humidity levels are slightly lower in May at 77% compared to April's 84%. For more detailed information about April's weather, you can visit Dortmund weather in April.
In May, temperatures in Dortmund range from a chilly minimum of 0°C (33°F) to a warm maximum of 33°C (91°F), with an average of 13°C (56°F). The month experiences approximately 73 mm (2.9 in) of precipitation over 13 days, contributing to a higher humidity level of 77%. In contrast, June brings slightly milder conditions, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 35°C (95°F), and an average of 18°C (66°F). Rainfall decreases to around 70 mm (2.7 in) over just 10 days, resulting in a slightly lower humidity of 74%. For more detailed information, you can check Dortmund weather in June.
In comparing the weather in May and July, we see noticeable differences in temperature and precipitation. May features a broader temperature range, with a minimum of 0°C (33°F) and a maximum of 33°C (91°F), averaging around 13°C (56°F). It also has a higher humidity level at 77% and receives about 73 mm (2.9 in) of precipitation over 13 days. In contrast, July brings milder minimum temperatures of 8°C (47°F) and a higher average of 19°C (66°F), reaching up to 38°C (100°F) at its peak. The month sees increased rainfall, totaling 98 mm (3.9 in) over 14 days, but with slightly lower humidity at 72%. For more detailed insights, you can check Dortmund weather in July.
In May, temperatures exhibit a greater range with a minimum of 0°C (33°F) and a maximum of 33°C (91°F), averaging around 13°C (56°F). The month sees an average of 13 rainy days, resulting in a total precipitation of 73 mm (2.9 in) and 77% humidity. By contrast, August experiences milder minimum temperatures at 7°C (46°F) and a higher average of 19°C (66°F), with a peak reaching 36°C (97°F). The month has an increased precipitation of 82 mm (3.2 in) over 15 days and slightly lower humidity at 71%. For detailed insights on the weather during August, you can visit Dortmund weather in August.
May and September both exhibit mild temperatures and similar precipitation levels, though there are noticeable differences. In May, temperatures range from a minimum of 0°C (33°F) to a maximum of 33°C (91°F), with an average of 13°C (56°F) and fairly high humidity at 77%. Conversely, September shows slightly warmer average temperatures, with a minimum of 1°C (35°F) and a maximum of 31°C (88°F), averaging 15°C (59°F) alongside higher humidity at 81%. While precipitation is quite comparable, with May receiving 73 mm (2.9 inches) over 13 days and September slightly less at 68 mm (2.7 inches) over 11 days, both months maintain a humid climate. For more details on weather trends, check out Dortmund weather in September.
May and October showcase notable differences in weather, reflecting the transition from spring to autumn. In May, temperatures can range from a minimum of 0°C (33°F) to a maximum of 33°C (91°F), with an average of 13°C (56°F), while October sees a milder range with a minimum of 0°C (33°F) and a maximum of 26°C (80°F), averaging at 12°C (53°F). Rainfall is also more pronounced in October, accumulating 95 mm (3.7 in) over 15 days compared to May's 73 mm (2.9 in) over 13 days. Additionally, October experiences higher humidity at 88%, compared to May's 77%. For more detailed insights into October weather, visit Dortmund weather in October.
May and November present contrasting weather experiences. In May, temperatures range from a chilly 0°C (33°F) at night to a warm 33°C (91°F) during the day, with an average of 13°C (56°F). The month sees about 73 mm (2.9 in) of precipitation over 13 days, and the humidity sits at 77%. In contrast, November is marked by cooler temperatures, with nighttime lows dipping to -5°C (23°F) and daytime highs reaching only 19°C (67°F), averaging 7°C (44°F). Precipitation is slightly lower at 59 mm (2.3 in) over the same number of days, but the humidity rises to 91%. For more insights into the weather during this month, visit Dortmund weather in November.
May and December in Dortmund showcase stark contrasts in weather. May typically sees mild average temperatures around 13°C (56°F), peaking at a warm 33°C (91°F) on sunnier days, while December's average dips to a chilly 5°C (40°F), with a maximum of only 15°C (59°F). Precipitation is also more frequent in December, with 104 mm (4.1 in) falling over 19 days compared to May’s 73 mm (2.9 in) over 13 days. Additionally, December boasts higher humidity levels at 92%, reflecting the moist conditions of winter. For more detailed information, you can check out Dortmund weather in December.
As May unfolds in Dortmund, the weather begins to transition from the cool embrace of spring to the warmth of early summer. With temperatures swinging from brisk mornings to warmer afternoons, residents can expect a notable increase in warmth compared to the chillier months that preceded it. However, the month is also marked by a fair share of precipitation, with rain making an appearance on nearly half of the days, ensuring that the lush greenery of the region thrives. The humidity hovers around a comfortable level, providing a refreshing backdrop for outdoor activities. For those considering a visit or planning for the month, May offers a unique blend of warmth and variability that sets the stage for the summer ahead. To explore more about the weather throughout the year, visit Dortmund Climate.