January Weather in Bad Honnef, Germany

Last updated: February 26, 2025

In January, Bad Honnef, Germany experiences a chill that can be felt in both the air and the atmosphere. With maximum temperatures reaching 14°C (57°F) and minimums dipping down to -8°C (17°F), residents and visitors alike should brace for a substantial average temperature of 3°C (38°F). The month is also marked by frequent precipitation, totaling 83 mm (3.3 in) over 14 days, making it one of the wetter times of the year. Humidity levels hover around a notable 91%, contributing to the often overcast and damp conditions that characterize this midwinter month. Prepare for a mix of cold breezes and soft drizzles as you navigate the picturesque landscapes of Bad Honnef.

January Temperature in Bad Honnef

In Bad Honnef, Germany, January brings a crisp chill to the air, with temperatures ranging from a minimum of -8°C (17°F) to a maximum of 14°C (57°F). This month serves as a bridge between the deeper cold of winter and the awakening prospects of spring, featuring an average temperature of 3°C (38°F). As January unfolds, residents and visitors can anticipate the frosty allure of winter while gradually acknowledging the upward trend in temperatures that will continue into February and March, when milder days begin to emerge. Despite moments of warmth peeking through, January's cold snap paints a picture of a tranquil yet brisk environment, perfectly capturing the essence of a German winter.

January Weather in Bad Honnef: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Bad Honnef, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec374044505766676760534440
Data source: Temperature data for Bad Honnef generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Bad Honnef

In January, Bad Honnef experiences a noteworthy precipitation pattern, with a total of 83 mm (3.3 in) of rain falling over 14 days. This marks a robust start to the year, setting the stage for the wetter months ahead. Interestingly, precipitation begins to taper off slightly in February, with 79 mm (3.1 in) recorded over 12 days, suggesting a gradual shift towards drier conditions as winter progresses. As spring approaches, March presents a slight uptick in precipitation with 85 mm (3.3 in) over 16 days, indicating the transitional nature of the weather. Overall, January stands out as one of the rainier months, contributing significantly to the region's annual precipitation cycle.

January Precipitation Trends in Bad Honnef

The chart displays monthly precipitation patterns in Bad Honnef, with values for each month alongside January's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec8379853973679182618059118
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Bad Honnef

In January, the humidity in Bad Honnef, Germany, reaches a peak of 91%, marking the start of a trend that characterizes the region's winter months. This high humidity is a precursor to the slightly lower levels seen in February at 90%, followed by a gradual decline through the spring, culminating in April's 84%. As the weather warms up, humidity continues to drop, hitting a low of 71% by August. However, the transition to autumn brings a notable increase, with September climbing back to 81%, and both October and November see humidity levels return to a humid 88% and 91%, respectively. Finally, December welcomes winter back with a slight rise to 92%, creating a cycle that showcases Bad Honnef's distinctly humid climate throughout the year.

January Average Humidity in Bad Honnef

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

January UV Index in Bad Honnef

In January, Bad Honnef, Germany experiences a low UV Index of 1, with a burn time of 45 minutes, making it a safe period for most outdoor activities without much risk of sunburn. As the seasons shift into February, the UV Index slightly rises to 2, remaining in the low exposure category, and maintaining the same 45-minute burn time. A noticeable increase occurs in March with a moderate UV Index of 4, reducing burn time to 30 minutes. This trend of rising UV levels continues through the spring, peaking in the summer months of June and July at 8, categorized as very high, where sunburn can happen in as little as 15 minutes. As autumn arrives, the UV Index gradually decreases, reflecting a return to lower levels, with values settling back to 2 in November and 1 in December. This yearly cycle highlights the importance of adjusting sun protection strategies throughout the year. For more information on UV levels, visit Bad Honnef UV Index.

Maximum UV Index Levels in Bad Honnef for January

The chart shows the monthly maximum UV Index (UVI) for Bad Honnef in January, 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: Bad Honnef January 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.

January Sunshine in Bad Honnef

In Bad Honnef, January sets the stage for the year with just 106 hours of sunshine, a gentle reminder of winter’s embrace. As the months progress, we witness a remarkable transformation; February brings a notable increase to 199 hours, heralding the slow approach of spring. March and April continue the upward trend, jumping to 263 and 341 hours respectively, as longer days and brighter skies kindle a warm anticipation for summer. The peak sunshine is seen in the summer months of June and July, where residents bask in 392 and 409 hours of radiant light. Interestingly, from August onward, the hours begin to decline, signaling the transition to fall, with 314 hours in September and 230 hours in October. By November and December, the sunlight dwindles to just 173 and 117 hours, wrapping the year with a cozy, introspective close. This cyclical dance of sunlight not only marks the changing seasons but also invites both locals and visitors to savor the enchanting charms of Bad Honnef throughout the year.

Monthly Sunshine Duration in Bad Honnef: January Highlighted

The January sunshine duration represents the total number of hours Bad Honnef experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec106h199h263h341h389h392h409h380h314h230h173h117h
Data source: Bad Honnef January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Bad Honnef During January

In Bad Honnef, Germany, the likelihood of seeing sunny weather in January is quite low, hovering around just 10%. This marks the beginning of a gradual shift towards brighter days as the year progresses. By February, the chance of sunshine rises significantly to 32%, and as spring approaches, March sees an even more optimistic 42%. Interestingly, April maintains a healthy 39%, indicating that the sun begins to reappear with more regularity. However, from the summer months onwards, the sunshine percentages begin to stabilize around the 30% mark, suggesting that while sunny days are more frequent, they remain interspersed with cloudy spells. Overall, January's dismal outlook contrasts sharply with the sunnier prospects that await in the following months, reminding us that winter in Bad Honnef is defined more by its cloudy skies than its sunlight.

Percentage of Sunny Days in January in Bad Honnef

The chart illustrates the percentage of sunny days in Bad Honnef throughout the year, with January 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 Bad Honnef experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec10%32%42%40%30%30%31%32%38%28%22%13%
Data source: Bad Honnef January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Bad Honnef in January

In Bad Honnef, Germany, January marks the beginning of the year with approximately 8 hours of daylight, setting a subdued tone as winter lingers. As the month unfolds, the days gradually lengthen, with February bringing 10 hours of brightness, hinting at the approaching spring. March continues this upward trend, reaching 11 hours, while April elevates daylight to 13 hours, encouraging outdoor activities. The peak of summer arrives in June with 16 hours of radiant sunlight, creating a vibrant atmosphere. However, as summer fades, July and August witness a gentle decline, with daylight hours decreasing to 15 and 14 hours, respectively. By September, the realization of autumn’s approach is evident with 12 hours of daylight, followed by a further reduction in October to 10 hours. The year closes again in darkness, with November and December both returning to 8 hours of daylight, reminding us of the cyclical nature of the seasons in this enchanting region.

Average Daylight Hours in Bad Honnef for January

The chart illustrates the variation in daylight duration in Bad Honnef throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 31m10h 2m11h 55m13h 50m15h 30m16h 23m15h 55m14h 25m12h 34m10h 39m8h 56m8h 2m
Data source: Bad Honnef daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Bad Honnef

In January, Bad Honnef, Germany, experiences an average wind speed of 3.5 m/s (approximately 8 mph), which sets the tone for the winter months. While January's breezy conditions are slightly less than those of February, which sees a modest uptick at 3.7 m/s, the trend appears to favor a general consistency in wind patterns through the early part of the year. As spring approaches, however, the winds begin to taper off, with March recording a decrease to 3.3 m/s and April dropping further to 2.9 m/s. These figures suggest a gentle transition from the brisk winter gusts to more tranquil spring breezes, indicating that January, with its relatively brisk winds, acts as a refreshing prelude to the calmer days ahead.

Average January Wind Speed in Bad Honnef

The chart displays monthly wind speed patterns in Bad Honnef, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.5 m/s3.73.32.93.42.42.52.82.23.52.63.3
Data source: Bad Honnef January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Bad Honnef Compares to Other Months

The weather in Bad Honnef 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 Bad Honnef and find detailed weather information for every month.

January and February present similar yet distinct weather patterns, with February generally showing slightly milder temperatures. In January, the minimum temperature hovers around -8°C (17°F), while February can drop to -11°C (13°F). However, February boasts a higher maximum temperature of 20°C (68°F) compared to January's high of 14°C (57°F). Precipitation levels are comparable, with January receiving 83 mm (3.3 in) over 14 days and February slightly less at 79 mm (3.1 in) over 12 days. Humidity remains fairly high in both months, with January at 91% and February at 90%. For more detailed insights on February weather, you can explore Bad Honnef weather in February.

January weather typically features cooler temperatures, with a minimum of -8°C (17°F) and an average high of 14°C (57°F), while March starts to warm up, showcasing a minimum temperature of -10°C (14°F) but achieving a higher average maximum of 22°C (73°F). Both months experience similar levels of precipitation, with January receiving 83 mm (3.3 in) over 14 days and March slightly higher at 85 mm (3.3 in) across 16 days. Humidity levels are also relatively close, with January at 91% and March dipping slightly to 87%. For more detailed information, you can check Bad Honnef weather in March.

In January, the weather is notably colder, with temperatures ranging from a minimum of -8°C (17°F) to a maximum of 14°C (57°F) and an average of 3°C (38°F). This month sees relatively high precipitation, totaling 83 mm (3.3 in) over 14 days, accompanied by high humidity levels of 91%. In contrast, April brings a significant warming trend, with temperatures ranging from -3°C (26°F) to 27°C (80°F) and an average of 10°C (50°F). Precipitation decreases to 39 mm (1.5 in) across 9 days, and humidity also drops to a more comfortable 84%. For further details on April weather, you can check this link: Bad Honnef weather in April.

In January, the weather is notably colder, with temperatures ranging from a minimum of -8°C (17°F) to a maximum of 14°C (57°F), and an average of just 3°C (38°F). The month is characterized by high humidity at 91% and frequent precipitation, totaling 83 mm (3.3 in) over about 14 days. In contrast, May brings a significant warming trend, with temperatures ranging from 0°C (33°F) to a high of 33°C (91°F) and an average of 14°C (57°F). While it sees slightly less precipitation at 73 mm (2.9 in) over 13 days, the humidity also drops to a more comfortable 77%. For more detailed weather information specific to May, visit Bad Honnef weather in May.

January and June present starkly contrasting weather patterns. In January, temperatures range from a chilling -8°C (17°F) to a mild 14°C (57°F), with an average of 3°C (38°F). The month is characterized by high humidity at 91% and considerable precipitation, totaling 83 mm (3.3 in) over 14 days. In contrast, June offers a much warmer climate, with temperatures varying from 8°C (46°F) to a scorching 35°C (95°F), averaging 19°C (66°F). The month experiences lower precipitation, with only 67 mm (2.6 in) over 11 days and reduced humidity at 74%. For more insights into June's weather, you can visit Bad Honnef weather in June.

The weather in January is markedly colder than in July, with average temperatures ranging from a frigid -8°C (17°F) to a maximum of 14°C (57°F), compared to July's much warmer range of 8°C (47°F) to a scorching 40°C (104°F). Additionally, January experiences higher humidity levels at 91%, while July's humidity is relatively lower at 72%. Precipitation is similar in both months, with January receiving 83 mm (3.3 in) over 14 days and July seeing slightly more at 91 mm (3.6 in) over 11 days. For more details on July weather, you can check Bad Honnef weather in July.

In January, the weather is characterized by cold temperatures, with a minimum of -8°C (17°F) and an average of 3°C (38°F), reaching a maximum of 14°C (57°F). The month sees significant precipitation, averaging 83 mm (3.3 in) over 14 days, accompanied by high humidity at 91%. In contrast, August brings much warmer conditions, with minimum temperatures around 7°C (45°F) and an average of 19°C (67°F), peaking at a maximum of 36°C (97°F). Precipitation slightly decreases to 82 mm (3.2 in) over 15 days, while humidity drops to a more comfortable 71%. For more details on the weather patterns in August, you can check Bad Honnef weather in August.

January and September present contrasting weather conditions. In January, temperatures range from a chilly -8°C (17°F) to a mild 14°C (57°F) with an average of 3°C (38°F), accompanied by significant precipitation of 83 mm (3.3 in) over 14 days and high humidity at 91%. In contrast, September enjoys a much warmer climate with temperatures fluctuating from a minimum of 2°C (36°F) to a maximum of 33°C (92°F), averaging 15°C (60°F). The month brings less rainfall, totaling 61 mm (2.4 in) over 10 days, and slightly lower humidity at 81%. For more details on September weather, visit Bad Honnef weather in September.

January and October display significant differences in weather patterns. In January, temperatures range from a chilly minimum of -8°C (17°F) to a maximum of 14°C (57°F), with an average of 3°C (38°F), making it one of the coldest months. The humidity is quite high at 91%, and the region receives around 83 mm (3.3 in) of precipitation over 14 days. In contrast, October offers more mild conditions with minimum temperatures around 1°C (33°F) and maximums reaching up to 26°C (79°F), resulting in a comfortable average of 12°C (53°F). The precipitation in October is slightly lower at 80 mm (3.2 in) over the same number of days, with humidity at 88%. For a closer look at what October has to offer, you can check Bad Honnef weather in October.

January and November present distinct weather patterns, with January experiencing colder temperatures and a higher average precipitation. In January, temperatures range from a chilly minimum of -8°C (17°F) to a maximum of 14°C (57°F), while November offers milder conditions, with temperatures ranging from -4°C (25°F) to 20°C (68°F). Despite January's greater temperature extremes, both months have a similar humidity level of 91%. Additionally, January sees more precipitation overall, totaling 83 mm (3.3 in) over 14 days, compared to November's 59 mm (2.3 in) over 13 days. For more specifics, you can check Bad Honnef weather in November.

In comparing the weather between January and December, January tends to be slightly colder, with average temperatures ranging from a minimum of -8°C (17°F) to a maximum of 14°C (57°F), while December experiences milder conditions with temperatures ranging from -5°C (23°F) to 15°C (59°F). Precipitation in January is lower, totaling 83 mm (3.3 in) over about 14 days, compared to December's 118 mm (4.7 in) over approximately 20 days. Humidity levels are quite similar, with January at 91% and December slightly higher at 92%. For more insights on December weather, visit Bad Honnef weather in December.

Compare Bad Honnef's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Bad Honnef

January in Bad Honnef presents a distinct contrast to the milder months of the year. With temperatures plunging to an average of just 3°C, this month is notably colder, often reaching chilly lows around -8°C. The high humidity of 91% combined with nearly half the month experiencing precipitation creates a damp atmosphere, setting January apart from the sunnier and warmer spring and summer months. Despite the shorter and colder days, this month offers a unique charm, allowing visitors to experience the serene beauty of winter. For more insights on the weather patterns throughout the year, check out Bad Honnef Climate.