Last updated: February 26, 2025
In Dortmund, Germany, January unfolds with a chilly embrace, featuring a maximum temperature of 14°C (57°F) and an average of only 3°C (38°F). The month is marked by crisp days where the temperatures can dip to a minimum of -9°C (16°F), making it a time for warm clothing and cozy interiors. As the region experiences about 14 days of precipitation, accumulating around 78 mm (3.1 in), the air remains humid at 91%, contributing to the typical winter atmosphere. Whether you're exploring the city’s charming streets or enjoying the indoors, January in Dortmund is truly a season of contrasts.
January in Dortmund, Germany typically experiences a chilled embrace of winter, with temperatures ranging from a brisk -9°C (16°F) at the minimum to a mild 14°C (57°F) at the peak. The average sits around 3°C (38°F), marking it as one of the colder months of the year. As the month unfolds, the stark contrast between lows and highs hints at a transitioning season, setting the stage for February's even harsher temperatures, where the minimum can plummet to -16°C (3°F). However, the slight increase in average temperatures as February approaches indicates a rhythmic warming trend, promising the gradual revival of spring in the subsequent months. While January holds firmly to its frosty persona, it also acts as a precursor to the year's climatic progression.
In January, Dortmund experiences an average precipitation of 78 mm (3.1 in) over approximately 14 days, marking the start of the year with a mix of drizzly weather and lighter showers. This sets a tone for the months ahead, as precipitation tends to increase slightly, with February and March reporting higher amounts at 84 mm and 85 mm, respectively. Interestingly, the wettest months, July and October, often see 98 mm and 95 mm, indicating a trend of increased rain during the summer and early autumn. In contrast, late spring and early summer remain relatively drier, hinting at seasonal variations that characterize Dortmund’s climate. While January's rainfall paves the way for the wet months to follow, it's the gentle ebb and flow of precipitation that truly defines the region's weather patterns throughout the year.
In Dortmund during January, humidity levels peak at an impressive 91%, setting the tone for a cold and damp winter month. This high humidity is representative of the season's chill, which gradually ebbs as February follows closely behind with only a slight decrease to 90%. As spring approaches, we see a gradual decline in moisture levels, hitting 84% by April, and continuing downward to 77% in May. The trend of lower humidity persists through the warmer summer months, reaching a comfortable low of 72% in July. However, as autumn sets in, humidity levels begin to climb again, reaching 88% in October and bouncing back to 91% in November, before finishing the year at 92% in December. This cyclical humidity pattern highlights Dortmund's characteristic transition from the cold, moist winters to comparatively drier summer months, only to return to higher humidity as the year closes out.
In January, Dortmund experiences a low UV Index of 1, which means you'll have ample time of about 45 minutes before the risk of sunburn becomes a concern. This trend of low UV exposure continues into February, maintaining the same index and burn time. As winter fades and March approaches, the UV Index rises to a moderate level of 4, shortening burn time to 30 minutes, signaling the onset of increased sun intensity. With the arrival of April and May, the UV Index escalates further, peaking at 7 in May, indicating a high exposure risk and a burn time of just 25 minutes. This rise continues into the summer months, where June and July both register a very high index of 8, drastically reducing safe sun exposure to 15 minutes. As autumn sets in, the levels gradually taper off, returning to lower values in November and December. Overall, the UV Index in Dortmund demonstrates a clear seasonal trend, urging residents to be mindful of sun safety as they transition from winter's cool refuge into the sun-soaked days of summer. For more detailed information, visit Dortmund UV Index.
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In Dortmund, Germany, January shines with only 100 hours of sunlight, a stark contrast to the subsequent months as daylight steadily increases. By February, the total rises to 195 hours, signaling the gradual return of longer, brighter days. March continues this upward trend with 257 hours, while April bursts forth with an impressive 346 hours, marking the arrival of spring and the rejuvenation it brings. As the year progresses into May and June, sunshine peaks at 385 hours, offering residents a delightful early summer. Although July boasts the highest level of sunlight at 403 hours, the remainder of the summer months sees a slight dip, with August recording 379 hours. The decrease becomes more pronounced as the year transitions into autumn, with September at 315 hours and a further decline in the final months, ending the year with a meager 115 hours in December. This rhythm of sunlight captures Dortmund's seasonal cycle, transforming the landscape and influencing the energy of its inhabitants throughout the year.
In Dortmund, Germany, the likelihood of sunny weather in January is quite low, hovering around 10%. This trend marks the coldest month of the year, where the sun seems to shy away compared to the brighter days of spring and summer. As the calendar turns to February, the chances of sunshine gradually improve to 27%, hinting at the early stirrings of warmer weather. As the months progress into March and April, the prospect of clear skies increases significantly, reaching 38% and 35%, respectively. This gradual rise in sunny days signals a shift from the dreary winter months to the more cheerful spring season, where residents can finally anticipate the sun’s warm embrace after enduring the gloom of January's grey days.
In Dortmund, Germany, January heralds the year with a modest daylight duration of 8 hours, a stark contrast to the long summer days that lie ahead. As the calendar turns to February, the days gradually lengthen, gaining an additional hour of light, hinting at the approach of spring. This upward trend continues through March and April, where daylight extends to 11 and then 13 hours, respectively, inviting a vibrant renewal of nature. By May, the days reach a delightful 15 hours, before peaking at a glorious 16 hours in both June and July, making these months a dream for outdoor enthusiasts. However, as summer wanes, a gradual decline begins; August still enjoys 14 hours, but September brings a noticeable drop to 12 hours. The descent continues into October, with a further reduction to 10 hours, until November and December see daylight shrink back to 8 and a mere 7 hours, respectively. This cyclical pattern of daylight in Dortmund not only marks the passage of seasons but also underscores the region's transition from the vibrant energy of summer to the quieter, more introspective days of winter.
In Dortmund, Germany, January greets residents with a consistent wind speed of 4.1 m/s (9 mph), mirroring the conditions found in February. This steady breeze lays the foundation for a transitional period, as the wind gradually decreases through the spring months, dipping to its lowest point in June at 2.6 m/s (6 mph). However, as autumn approaches, wind speeds regain momentum, peaking at 4.4 m/s (10 mph) in October. This cyclical pattern reflects the dynamic interplay of seasonal changes, where winter and early spring embrace brisk winds, giving way to calmer summer days before ushering in an energetic fall. Overall, January stands as a pivotal moment, not only for its chilly air but also for the seamless flow of wind patterns that define Dortmund's unique climate.
The weather in Dortmund changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January'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.
In January, the weather typically features a minimum temperature of -9°C (16°F) and an average of 3°C (38°F), with a maximum of 14°C (57°F), accompanied by relatively high precipitation of 78 mm (3.1 in) over 14 days and humidity levels around 91%. In contrast, February experiences slightly colder nights with a minimum of -16°C (3°F), but a marginally warmer average temperature of 4°C (40°F) and a higher maximum of 20°C (67°F). Precipitation in February increases slightly to 84 mm (3.3 in) over 13 days, alongside a similar humidity level of 90%. For a more detailed look at the February weather patterns, check out Dortmund weather in February.
In comparing the weather between January and March, we notice a significant warming trend. January experiences colder temperatures, ranging from a minimum of -9°C (16°F) to an average of 3°C (38°F), while March sees a rise in the average temperature to 6°C (44°F) with a maximum reaching 22°C (72°F). Despite both months having relatively high humidity—January at 91% and March at 87%—March typically has slightly more precipitation, totaling 85 mm (3.4 inches) over 15 days compared to January's 78 mm (3.1 inches) over 14 days. For more specifics on the weather conditions in March, you can check out Dortmund weather in March.
In January, the weather in Dortmund is characterized by cold temperatures, ranging from a minimum of -9°C (16°F) to a maximum of 14°C (57°F), with an average temperature of 3°C (38°F). The month experiences a fair amount of precipitation, totaling 78 mm (3.1 in) over 14 days, accompanied by high humidity at 91%. In contrast, April brings a significant warming trend, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 28°C (82°F) and an average temperature of 10°C (50°F). Precipitation decreases to 39 mm (1.6 in) spread over 9 days, and humidity is slightly lower at 84%. For a closer look at what to expect, check out Dortmund weather in April.
In January, the weather is notably cold, with temperatures ranging from a chilling minimum of -9°C (16°F) to a maximum of 14°C (57°F) and an average of just 3°C (38°F). The month experiences significant precipitation, with 78 mm (3.1 in) across approximately 14 days, contributing to a high humidity level of 91%. In contrast, May brings a much warmer climate, showcasing a marked increase in temperatures that span from a minimum of 0°C (33°F) to an maximum of 33°C (91°F), with an average of 13°C (56°F). Precipitation levels are slightly reduced to 73 mm (2.9 in) over 13 days, and the humidity decreases to 77%. This shift from winter chill to spring warmth creates a stark contrast between the two months. For more details on the weather in May, visit Dortmund weather in May.
In January, the weather in Dortmund is quite cold, with average temperatures around 3°C (38°F), dipping as low as -9°C (16°F) and occasionally reaching a maximum of 14°C (57°F). The month sees significant precipitation, totaling 78 mm (3.1 in) over about 14 days, accompanied by high humidity levels at 91%.
In contrast, June brings a much milder and warmer climate, with average temperatures rising to 18°C (66°F). The minimum temperature is a comfortable 6°C (43°F), while highs can soar to 35°C (95°F). Although June experiences slightly less precipitation at 70 mm (2.7 in) over approximately 10 days, the humidity drops to 74%, contributing to a more pleasant atmosphere. For a detailed look at the weather conditions in June, you can visit Dortmund weather in June.
When comparing the weather in January and July, a stark contrast emerges in temperature and humidity. January experiences much colder temperatures, ranging from a minimum of -9°C (16°F) to a maximum of 14°C (57°F), with an average of just 3°C (38°F). In contrast, July boasts much warmer conditions, with temperatures ranging from a minimum of 8°C (47°F) to a scorching maximum of 38°C (100°F), and an average of 19°C (66°F).
While both months see a similar number of rainy days, with precipitation around 78 mm (3.1 in) in January and 98 mm (3.9 in) in July, the humidity levels differ significantly: January's humidity is a high 91%, while July's sits at a more comfortable 72%. For more details, you can explore Dortmund weather in July.
January and August present stark contrasts in weather conditions. In January, temperatures can plunge to a minimum of -9°C (16°F) and only reach a maximum of 14°C (57°F), accompanied by high humidity levels at 91%. This month also sees around 78 mm (3.1 in) of precipitation over 14 days, creating a chilly and damp environment. Conversely, August boasts a much milder climate, with temperatures ranging from a minimum of 7°C (46°F) to a sweltering maximum of 36°C (97°F) and an average temperature of 19°C (66°F). Although precipitation remains similar, at 82 mm (3.2 in) over 15 days, the humidity drops to a more comfortable 71%. For a detailed look at what to expect, check out Dortmund weather in August.
January and September present stark contrasts in weather conditions. January typically features colder temperatures, with a minimum of -9°C (16°F) and an average around 3°C (38°F), reaching a maximum of 14°C (57°F). Additionally, it has higher humidity levels at 91% and around 78 mm of precipitation over 14 days. In contrast, September enjoys milder temperatures, with a minimum of 1°C (35°F) and an average of 15°C (59°F), peaking at 31°C (88°F). It also experiences less rainfall, totaling 68 mm over just 11 days, along with a slightly lower humidity of 81%. For more detailed insights, you can check out Dortmund weather in September.
January and October in Dortmund present contrasting weather experiences. In January, temperatures can dip as low as -9°C (16°F) and average around 3°C (38°F), while October offers milder conditions with a minimum of 0°C (33°F) and an average of 12°C (53°F). Precipitation is slightly higher in October, totaling 95 mm (3.7 in) over 15 days, compared to January's 78 mm (3.1 in) across 14 days. Humidity levels remain relatively high in both months, at 91% for January and 88% for October, though the cooler October days create a more inviting atmosphere. For more details, check out Dortmund weather in October.
January and November showcase notable differences in weather patterns. In January, temperatures range from a chilly -9°C (16°F) at the minimum to a maximum of 14°C (57°F), with an average of around 3°C (38°F). The month typically sees about 78 mm (3.1 in) of precipitation over 14 days, maintaining high humidity levels at 91%. In contrast, November features milder temperatures, with a minimum of -5°C (23°F) and a maximum of 19°C (67°F), while averaging 7°C (44°F). The precipitation is slightly lower at 59 mm (2.3 in) across 13 days, yet the humidity remains constant at 91%. For more details on the specific conditions in November, check out Dortmund weather in November.
In comparing the weather between January and December, January generally experiences slightly colder temperatures, with an average of 3°C (38°F) compared to December's average of 5°C (40°F). The minimum temperature in January dips down to -9°C (16°F), while December has a minimum of -7°C (20°F). Precipitation levels are also notable, with January receiving 78 mm (3.1 in) over 14 days, which is less than December's 104 mm (4.1 in) spread across 19 days. Humidity remains high in both months, with January at 91% and December slightly higher at 92%. For further details, you can check the specific conditions for Dortmund weather in December.
As January settles in, Dortmund experiences a distinct shift in weather compared to the milder months that precede it. With temperatures often dipping into chilly ranges and a notable increase in precipitation, this month serves as a reminder of the region's wintry grip. The high humidity levels make the air feel even colder, leading to a damp and brisk atmosphere that invites cozy indoor activities. While January's weather is marked by short, gray days and fluctuating conditions, it sets the stage for the arrival of spring, making it a unique time to enjoy Dortmund's winter charm. For more insights into what to expect throughout the year, visit Dortmund Climate.