April Weather in Dortmund, Germany

Last updated: February 26, 2025

April in Dortmund, Germany showcases a vibrant transition into spring, with maximum temperatures reaching a delightful 28°C (82°F), while the average settles around a brisk 10°C (50°F). The month can be unpredictable, highlighted by a notable minimum of -4°C (25°F), making warm layers essential for evening outings. Rainfall contributes to the city's charm, with 39 mm (1.6 in) of precipitation spread over 9 days, leading to a lush, green landscape. Coupled with a high humidity level of 84%, April in Dortmund is a month of fresh beginnings, blossoming flora, and a refreshing, albeit occasionally damp, atmosphere.

April Temperature in Dortmund

April in Dortmund, Germany, marks a significant transition as the city shakes off the chill of winter. With temperatures ranging from a low of -4°C (25°F) to a comfortable max of 28°C (82°F), this month introduces a more inviting climate, where the average hovers around 10°C (50°F). This notable rise sets the stage for blossoming spring, as residents can finally enjoy the outdoors without heavy winter gear. Following the fluctuating temperatures in March, April presents a clear upward trend, promising longer days and a vibrant atmosphere, making it an ideal time for outings and exploration in this lively city.

April Weather in Dortmund: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Dortmund, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec373944495665666659534440
Data source: Temperature data for Dortmund generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Dortmund

In April, Dortmund experiences a noticeable dip in precipitation, with only 39 mm (1.6 in) of rain falling over a mere 9 days. This marks a sharp contrast to the wetter months preceding it; both February and March average around 84 mm (3.3 in) and 85 mm (3.4 in) respectively, highlighting a seasonal transition as spring emerges. The decline in rainfall not only signifies a respite from the gloomier winter months but also sets the stage for more moderate conditions ahead in May, which typically sees a rise in precipitation to about 73 mm (2.9 in). Observing these trends, it's clear that April serves as a bridge, ushering in drier weather while still retaining a mild connection to the preceding wetter season.

April Precipitation Trends in Dortmund

The chart displays monthly precipitation patterns in Dortmund, with values for each month alongside April's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec7884853973709882689559104
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Dortmund

In April, Dortmund experiences a noticeable drop in humidity, averaging 84%, a trend that reflects the gradual transition from the damp winter months. This decline from 87% in March marks the start of drier spring conditions, allowing the city to shed its heavy winter cloak. As temperatures begin to rise, humidity levels will continue to decrease, reaching their annual low of 72% in July. However, the cyclical nature of the climate is evident as humidity will gradually climb again in the fall, peaking at 92% in December. Thus, April serves as a pivotal moment in Dortmund’s annual humidity pattern, signaling a shift toward milder, more comfortable conditions.

April Average Humidity in Dortmund

This chart illustrates the average monthly humidity levels in Dortmund, with April's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how April's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%84%77%74%72%71%81%88%91%92%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Dortmund

In April, Dortmund experiences a moderate UV Index of 5, indicating it’s time to start taking some sun safety precautions. As the days grow longer and sunnier, the burn time decreases to just 30 minutes, signaling that outdoor enthusiasts should be mindful of their sun exposure. This shift from March's lower index reflects the gradual increase in solar intensity as spring unfolds. It's essential to stay protected during this time, as May will bring even higher UV levels. For more details on how to stay safe under the sun, check out Dortmund UV Index.

Maximum UV Index Levels in Dortmund for April

The chart shows the monthly maximum UV Index (UVI) for Dortmund in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Dortmund April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

April Sunshine in Dortmund

As spring unfolds in Dortmund, Germany, April marks a delightful transition with an impressive 346 hours of sunshine, showcasing a vibrant increase from the previous months. This upward trend begins in January with a modest 100 hours, steadily building through February and March as the days grow longer and warmer. The pattern continues into May and June, where sunshine reaches its peak at 385 hours, promising ample opportunities for outdoor activities and leisurely strolls. Even as summer approaches with July's sunniest days at 403 hours, there is a noticeable ebb in hours as the year progresses, leading to a gentle decline in the latter months. This rhythmic dance of daylight not only brightens the mood in Dortmund but also serves as a reminder of nature's cyclical beauty.

Monthly Sunshine Duration in Dortmund: April Highlighted

The April sunshine duration represents the total number of hours Dortmund experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec100h195h257h346h385h385h403h379h315h229h172h115h
Data source: Dortmund April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Dortmund During April

As April arrives in Dortmund, Germany, there's a noticeable shift in the likelihood of sunny weather compared to the preceding months. With a 35% chance of sun, April maintains a slightly lower likelihood than March's peak of 38%, yet it is a significant improvement from the dreary winter months of January and February, which offered just 10% and 27% chances, respectively. This trend suggests that while April can still be unpredictable, it signals the beginning of a seasonal transition where residents can start to anticipate more sun-filled days, notably as the region begins to shake off the winter chill. Overall, April stands out as a month of promise, hinting at the warmer months ahead.

Percentage of Sunny Days in April in Dortmund

The chart illustrates the percentage of sunny days in Dortmund throughout the year, with April highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Dortmund experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec10%27%38%35%28%28%29%32%35%26%20%15%
Data source: Dortmund April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Dortmund in April

As spring unfolds in Dortmund, April marks a noticeable shift in daylight duration, basking the city in 13 hours of daylight—a significant increase from the 11 hours experienced in March. This trend of growing sunlight illustrates the transition from the shorter, winter days of January and February, which offer only 8 and 9 hours, respectively. The ascent continues into May with 15 hours of daylight, leading seamlessly into the long, bright days of summer. April's sunshine not only illuminates the landscape but also awakens a sense of renewal, inviting residents to embrace outdoor activities as the days grow longer and warmer.

Average Daylight Hours in Dortmund for April

The chart illustrates the variation in daylight duration in Dortmund throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 23m9h 58m11h 54m13h 54m15h 38m16h 33m16h 4m14h 30m12h 35m10h 36m8h 50m7h 53m
Data source: Dortmund daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Dortmund

April in Dortmund is marked by a gentle breeze, with an average wind speed of 3.1 m/s (7 mph), making it one of the calmest months of the year. Following the slightly more blustery months of January and February, which both share a consistent wind speed of 4.1 m/s (9 mph), April shows a notable decrease. This trend continues into the warmer months, with May and June seeing slight fluctuations before settling into a pattern of softer winds. As spring unfolds, the milder breezes of April create a refreshing atmosphere, perfect for outdoor activities, setting the tone for a transition into the more dynamic wind patterns of late summer and fall. Overall, April serves as a tranquil interlude in Dortmund's wind calendar, reflecting the gentle onset of spring.

Average April Wind Speed in Dortmund

The chart displays monthly wind speed patterns in Dortmund, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.14.13.73.1 m/s4.02.62.83.22.74.43.43.9
Data source: Dortmund April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Dortmund Compares to Other Months

The weather in Dortmund changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of April'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.

April and January present markedly different weather conditions. In April, temperatures typically range from a minimum of -4°C (25°F) to a comfortable average of 10°C (50°F), occasionally peaking at 28°C (82°F). The month sees about 39 mm (1.6 in) of precipitation over approximately 9 days, with a humidity level of 84%. In contrast, January is considerably colder, with temperatures dropping to a minimum of -9°C (16°F) and averaging only 3°C (38°F), while the maximum rarely exceeds 14°C (57°F). January is also wetter, accumulating 78 mm (3.1 in) of precipitation over 14 days and experiencing higher humidity at 91%. For more details, you can check Dortmund weather in January.

April and February weather exhibits notable differences in temperature and precipitation patterns. In April, temperatures range from a minimum of -4°C (25°F) to a maximum of 28°C (82°F), with an average of 10°C (50°F). In contrast, February is colder, with temperatures ranging from a minimum of -16°C (3°F) to a maximum of 20°C (67°F) and an average of 4°C (40°F). While April has a total precipitation of 39 mm (1.6 in) over about 9 days, February sees significantly higher precipitation levels at 84 mm (3.3 in) across 13 days. Additionally, February has higher humidity at 90% compared to April's 84%. For more details, check Dortmund weather in February.

In comparing the weather between March and April, April generally shows a significant warming trend. While March experiences lower average temperatures with a minimum of -9°C (16°F) and an average of 6°C (44°F), April boasts a higher minimum of -4°C (25°F) and an average temperature of 10°C (50°F). Additionally, April sees a maximum temperature reaching up to 28°C (82°F), whereas March only peaks at 22°C (72°F). Precipitation in March is notably higher, with 85 mm (3.4 in) spread over 15 days, compared to April's 39 mm (1.6 in) over 9 days. Humidity levels remain relatively similar, with April at 84% and March at 87%. For more detailed insights on March weather, you can check Dortmund weather in March.

April and May exhibit notable differences in weather patterns. April experiences a broader temperature range, with minimums dipping to -4°C (25°F) and maximums reaching up to 28°C (82°F), leading to an average temperature of 10°C (50°F). The month also sees relatively high humidity at 84% and 39 mm (1.6 in) of precipitation over 9 days. In contrast, May offers warmer averages with minimum temperatures at 0°C (33°F) and maximums soaring to 33°C (91°F), resulting in an average of 13°C (56°F). However, this month also brings increased precipitation, totaling 73 mm (2.9 in) over 13 days, alongside a slight decrease in humidity to 77%. For more detailed insights, you can check the Dortmund weather in May.

April and June present quite different weather patterns. In April, temperatures range from a chilly minimum of -4°C (25°F) to a pleasant average of 10°C (50°F), with a maximum of 28°C (82°F). The month also sees around 39 mm (1.6 in) of precipitation spread over approximately 9 days, accompanied by a high humidity level of 84%. In contrast, June enjoys warmer temperatures, with a minimum of 6°C (43°F) and an average of 18°C (66°F), peaking at a sizzling 35°C (95°F). Rainfall increases to 70 mm (2.7 in) across about 10 days, but humidity drops to a more comfortable 74%. For more details, check out Dortmund weather in June.

April and July present contrasting weather patterns in terms of temperature and precipitation. In April, temperatures range from a chilly minimum of -4°C (25°F) to a pleasant average of 10°C (50°F), peaking at 28°C (82°F), with an average humidity of 84% and about 39 mm (1.6 in) of rain over 9 days. In contrast, July boasts warmer temperatures with a minimum of 8°C (47°F), an average of 19°C (66°F), and highs reaching a scorching 38°C (100°F). Rainfall also increases significantly in July, amounting to 98 mm (3.9 in) over 14 days, alongside lower humidity levels at 72%. For more detailed insights into July's weather, you can visit Dortmund weather in July.

April and August showcase contrasting weather patterns in terms of temperature and precipitation. In April, temperatures range from a chilly minimum of -4°C (25°F) to a comfortable maximum of 28°C (82°F), averaging around 10°C (50°F). However, it experiences an average of 39 mm (1.6 in) of precipitation over about 9 days and high humidity of 84%. In contrast, August brings warmer weather, with minimum temperatures starting at 7°C (46°F) and peaking at 36°C (97°F), averaging 19°C (66°F). The month sees significantly more rainfall, with 82 mm (3.2 in) spread across 15 days, but the humidity is lower at 71%. For more detailed information, you can check Dortmund weather in August.

April and September exhibit distinct weather patterns, showcasing the transitional nature of spring and early autumn. In April, temperatures range from a chilly -4°C (25°F) at night to a pleasant average of 10°C (50°F), peaking at a comfortable 28°C (82°F). The month experiences approximately 39 mm (1.6 in) of precipitation over 9 days, accompanied by high humidity levels at 84%. In contrast, September offers a broader temperature spectrum, with minimums of 1°C (35°F) and an average of 15°C (59°F), occasionally reaching highs of 31°C (88°F). Rainfall increases to 68 mm (2.7 in) across 11 days, while humidity remains slightly lower at 81%. This comparison highlights the increasing warmth and moisture of September compared to the cooler, more variable April weather. For more information, check out Dortmund weather in September.

April and October present distinct weather patterns as spring transitions into autumn. In April, temperatures can range from a chilly -4°C (25°F) at night to a warm 28°C (82°F) during the day, with an average of 10°C (50°F). This month sees about 39 mm (1.6 in) of precipitation over approximately 9 days, coupled with a high humidity level of 84%. In contrast, October experiences milder temperatures, ranging from a minimum of 0°C (33°F) to a maximum of 26°C (80°F), averaging 12°C (53°F). However, it is noticeably wetter, with precipitation reaching 95 mm (3.7 in) over about 15 days and slightly higher humidity at 88%. For more detailed insights into the climate, check out the Dortmund weather in October.

In comparing the weather of April and November, we see distinct seasonal differences. April tends to be milder with temperatures ranging from a minimum of -4°C to a maximum of 28°C, averaging around 10°C. There is moderate precipitation of 39 mm over about 9 days, along with a relatively high humidity of 84%. In contrast, November is cooler, featuring temperatures from -5°C to a maximum of 19°C, averaging 7°C. This month experiences higher precipitation at 59 mm spread over approximately 13 days, with humidity rising slightly to 91%. For more detailed insights, you can check Dortmund weather in November.

April and December present contrasting weather conditions. In April, temperatures can range from a chilly -4°C (25°F) to a pleasant 28°C (82°F), with an average of 10°C (50°F), while December sees a colder range, with minimum temperatures dipping to -7°C (20°F) and a maximum of 15°C (59°F), averaging just 5°C (40°F). Precipitation is more frequent in December, occurring on 19 days and totaling 104 mm (4.1 in), compared to April’s 39 mm (1.6 in) over 9 days. Additionally, humidity levels are higher in December at 92%, compared to 84% in April, making the atmosphere feel more damp and colder. For a deeper understanding of the December climate, check out Dortmund weather in December.

Compare Dortmund's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Dortmund

April in Dortmund marks a distinctive transition into spring, characterized by a delightful mix of warming days and cooler nights. As temperatures bounce between the chilly remnants of winter and the mild embrace of early spring, it’s a time when the landscape begins to awaken with vibrant greenery. With an average humidity of 84%, the air feels refreshing, even as rainfall remains present, making this month a pivotal moment for the blossoming flora. Unlike the harsher conditions of winter, April’s milder climate invites residents and visitors to enjoy outdoor activities, yet the occasional rain can be a reminder of the unpredictable nature of spring weather. For more insights into what to expect throughout the year, explore the comprehensive details at Dortmund Climate.