January Weather in Arnhem, Netherlands

Last updated: August 27, 2025

In January, Arnhem, Netherlands experiences a chilly climate, with temperatures ranging from a maximum of 14°C (58°F) to a minimum of -8°C (17°F). The average temperature settles at around 4°C (39°F), providing a brisk atmosphere typical of winter months. Rainfall is noteworthy, with 64 mm (2.5 in) of precipitation spread over 13 days, making it a wet month for the region. High humidity levels at 91% can make the cold feel even more penetrating, urging residents and visitors alike to bundle up and prepare for the Dutch winter weather.

January Temperature in Arnhem

In January, Arnhem experiences a mix of chilly temperatures, with nighttime lows plunging to -8°C (17°F), while the day offers a mild average of 4°C (39°F) that can occasionally peak at 14°C (58°F). This month marks the heart of winter, where frosty mornings slowly transition into slightly more pleasant afternoons. As the month progresses, a gradual warming trend can be observed, with February typically bringing even colder nights at -13°C (9°F), but daytime averages inching up to 5°C (41°F). By March, temperatures continue to rise both day and night, showcasing a more pronounced spring feel, evidenced by an average of 7°C (44°F). This gentle shift in the weather sets the stage for the upcoming, warmer months, emphasizing Arnhem's transition from the starkness of winter to the invigorating freshness of early spring.

January Weather in Arnhem: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Arnhem, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arnhem, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec394044505765666659544541
Data source: Temperature data for Arnhem 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 Arnhem

In January, Arnhem experiences an average precipitation of 64 mm (2.5 in) spread across approximately 13 rainy days. This sets a relatively wet tone for the start of the year, as precipitation levels gradually increase in the following months, peaking in December with 87 mm (3.4 in) over 16 days. Interestingly, while January has more rainfall than some spring months like April (only 35 mm), it ushers in a trend of escalating moisture as the year progresses. The pattern suggests a transition from the chill of winter into the wetter spring months, giving way to the lush greeneries of the Netherlands that follow in May and June. Overall, January marks a pivotal start to the precipitation cycle, setting the stage for the wetter periods ahead.

January Precipitation Trends in Arnhem

The chart displays monthly precipitation patterns in Arnhem, 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. In Arnhem, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec647471356169757959855287
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Arnhem

In January, Arnhem, Netherlands, experiences a high humidity level of 91%, creating a cool and damp atmosphere that sets the tone for winter. As the season transitions into February, the humidity remains notably high at 90%, gradually decreasing to 87% in March. This slight decline continues throughout the spring months, reaching 84% in April and 77% in May, as warmer temperatures begin to assert themselves. The summer months bring a more comfortable environment, with humidity levels dropping to 72% in July and 71% in August. However, as autumn arrives, the trend shifts again, with humidity spiking back up to 81% in September and climbing to 91% in November, mirroring the high of January. The year wraps up with December bringing in a slightly higher humidity of 92%, concluding a cycle of fluctuating moisture that strongly characterizes Arnhem's climate throughout the year.

January Average Humidity in Arnhem

This chart illustrates the average monthly humidity levels in Arnhem, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Arnhem is approximately {2}%, offering insight into how humid the weather typically is during this month.
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 Arnhem

In January, Arnhem experiences a low UV Index of 1, allowing for a generous burn time of 45 minutes under the sun. As the month progresses into February, the index slightly rises to 2, maintaining a low exposure category. However, by March, a noticeable shift occurs with the UV Index climbing to 4, indicating a moderate level of sun exposure, where the burn time decreases to 30 minutes. This upward trend continues into April, peaking at 5 before the month of May introduces a high UV Index of 7, where careful sun exposure is crucial with a burn time of just 25 minutes. As summer unfolds, June and July bring very high UV levels of 8, necessitating extra caution with a reduced burn time of 15 minutes. Fortunately, as autumn sets in from August to October, the index gradually decreases back to moderate levels, with the final months of the year returning to low exposure. This seasonal variation underscores the importance of being sun-smart throughout the year in Arnhem. For more detailed information, visit Arnhem UV Index.

Maximum UV Index Levels in Arnhem for January

The chart shows the monthly maximum UV Index (UVI) for Arnhem 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. In January, the maximum UV index in Arnhem typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Arnhem 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 Arnhem

In January, Arnhem embraces a modest 111 hours of sunshine, marking the start of the year with a gentle glow that gradually intensifies as the months unfold. By February, the sun's presence increases significantly to 195 hours, hinting at the approaching spring. As the season transitions, March and April witness remarkable growth, with sunshine hours reaching 268 and 344, respectively, illustrating the city's awakening after winter's slumber. This trend continues into May and June, where residents enjoy 399 and 393 hours of sunlight, as longer days bring warmth and vibrancy. Despite a slight dip in July, with 407 hours of sunshine, the overall pattern remains one of optimism and brightness through the summer, before yielding to a gradual decline in the latter months of the year. By December, the sunshine retreats to 128 hours, a soft reminder of the cycle of seasons in this picturesque Dutch city.

Monthly Sunshine Duration in Arnhem: January Highlighted

The January sunshine duration represents the total number of hours Arnhem 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.
JanFebMarAprMayJunJulAugSepOctNovDec111h195h268h344h399h393h407h385h318h237h190h128h
Data source: Arnhem January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Arnhem During January

In January, Arnhem experiences one of its least sunny months, with a mere 15% chance of sunshine gracing the city. This trend of diminished sunlight continues into early winter, highlighted by a slight increase to 16% in December. As the seasons transition into spring, the likelihood of sunny days markedly improves, with February seeing a jump to 27% and March rising further to 36%. By April, the probability surges to 41%, indicating a clear upward trend as the days grow longer and warmer. Overall, while January offers little in terms of bright skies, the months that follow promise a refreshing shift towards more favorable weather.

Percentage of Sunny Days in January in Arnhem

The chart illustrates the percentage of sunny days in Arnhem 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 Arnhem experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec15%27%36%41%30%34%32%33%32%28%23%16%
Data source: Arnhem January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Arnhem in January

In Arnhem, Netherlands, January ushers in the year with approximately 8 hours of daylight, a stark contrast to the longer days that follow. As February arrives, daylight gradually increases to 9 hours, hinting at the coming spring. By March, the sun shines for 11 hours, and with each passing month, the duration expands dramatically, reaching a peak of 16 hours during the summer months of June and July. As the year progresses into August, daylight starts its gentle decline, with 14 hours still brightening the days. September sees a reduction to 12 hours, followed by October's 10 hours, reminding residents of the seasonal shifts ahead. As autumn deepens into November and December, daylight dwindles back to 8 and 7 hours, respectively, closing the year on a softer note. This cyclical pattern in Arnhem not only highlights the rhythmic dance of the seasons but also the gradual transition from the stark winter months to the vibrant, sun-drenched days of summer.

Average Daylight Hours in Arnhem for January

The chart illustrates the variation in daylight duration in Arnhem throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 20m9h 56m11h 55m13h 55m15h 41m16h 36m16h 7m14h 32m12h 35m10h 35m8h 47m7h 50m
Data source: Arnhem daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Arnhem

In January, the winds in Arnhem, Netherlands, whip through at an average speed of 4.2 m/s (9 mph), setting a brisk tone for the new year. As winter tightens its grip, the winds remain fairly steady compared to the following months; February sees only a slight dip to 4.0 m/s, while March cools down further to 3.9 m/s. With the arrival of spring in April, the winds ease to 3.6 m/s, hinting at a gradual transition toward calmer weather. By mid-year, the breezes mellow significantly, especially in June, where they drop to just 2.9 m/s, before gently rising again through the summer months. Interestingly, October reintroduces the stronger gales akin to January, returning to 4.2 m/s, showcasing the cyclical nature of Arnhem’s wind patterns as it flows through the seasons, reminding us how they shape the region’s character throughout the year.

Average January Wind Speed in Arnhem

The chart displays monthly wind speed patterns in Arnhem, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.2 m/s4.03.93.63.92.93.23.53.04.23.33.9
Data source: Arnhem January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Arnhem Compares to Other Months

Weather in Arnhem varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Arnhem, focusing on differences in temperature, rainfall, humidity, and UV levels.

January and February present notable differences in weather patterns. In January, temperatures range from a chilly -8°C (17°F) to a mild 14°C (58°F), with an average of 4°C (39°F) and precipitation occurring over 13 days, totaling 64 mm (2.5 in). The humidity is quite high at 91%, contributing to the overall cold feel. In contrast, February sees slightly lower minimum temperatures at -13°C (9°F) but a marginally higher average of 5°C (41°F) and maximum temperatures reaching 18°C (66°F). There is also a slight increase in precipitation to 74 mm (2.9 in) over 12 days, with humidity slightly lower at 90%. For more insights on the weather during this month, check out Arnhem weather in February.

January and March present distinct differences in weather patterns, despite both months experiencing similar minimum temperatures. In January, temperatures range from a chilly -8°C (17°F) at night to an average of 4°C (39°F) during the day, with a maximum of 14°C (58°F). This month sees around 64 mm (2.5 in) of precipitation over 13 days, accompanied by high humidity levels of 91%.

In contrast, March brings a noticeable warming trend, with average temperatures rising to 7°C (44°F) and daytime highs reaching 21°C (71°F). Precipitation slightly increases to 71 mm (2.8 in) over 15 days, and humidity decreases to 87%. Thus, while January remains cold and damp, March showcases a more temperate climate with milder conditions. For more details, you can check Arnhem weather in March.

In January, the weather can be quite chilly, with temperatures ranging from a minimum of -8°C (17°F) to an average high of 14°C (58°F). This month experiences significant precipitation, totaling 64 mm (2.5 in) over about 13 days, accompanied by high humidity levels of 91%. In contrast, April brings a noticeable warmth, with temperatures swinging from a minimum of -3°C (27°F) to an average high of 28°C (82°F). Notably, precipitation decreases to 35 mm (1.4 in) over just 9 days, and humidity levels drop to 84%. For more details on weather specifics, you can check Arnhem weather in April.

January and May exhibit stark contrasts in weather conditions. In January, temperatures range from a chilly minimum of -8°C (17°F) to a milder maximum of 14°C (58°F), with an average of 4°C (39°F). The month experiences significant humidity at 91%, alongside 64 mm (2.5 in) of precipitation over 13 days, making it quite damp and cold. In contrast, May offers a much warmer climate, with temperatures soaring from a minimum of 0°C (33°F) to a maximum of 31°C (88°F) and an average of 14°C (57°F). Although May also sees precipitation on 13 days, it totals slightly less at 61 mm (2.4 in) and is accompanied by a lower humidity level of 77%. For more insights into May's weather, check out Arnhem weather in May.

In January, the weather tends to be much colder, with average temperatures hovering around 4°C (39°F) and nighttime lows dropping to -8°C (17°F). The month also experiences high humidity at 91%, making it feel chillier, alongside 64 mm (2.5 in) of precipitation spread over 13 days. In contrast, June brings a significant warming trend, with average temperatures rising to 18°C (65°F) and daytime highs reaching up to 34°C (94°F). Although precipitation is slightly higher at 69 mm (2.7 in), it falls over fewer days, with only 11 rainy days and significantly lower humidity at 74%. For more details about the weather during this summer month, you can check Arnhem weather in June.

In January, the weather in Arnhem is quite chilly, with temperatures ranging from a minimum of -8°C (17°F) to a mild maximum of 14°C (58°F), averaging around 4°C (39°F). The month sees significant precipitation, with about 64 mm (2.5 in) over 13 days and a high humidity level of 91%. In contrast, July experiences significantly warmer temperatures, with a minimum of 7°C (45°F) and soaring maximums reaching up to 39°C (103°F), leading to an average temperature of 19°C (66°F). Although July has a slightly higher total precipitation of 75 mm (3.0 in) over 12 days, the humidity drops to a more comfortable 72%. For more detailed weather insights, check out Arnhem weather in July.

In January, the weather in Arnhem is characterized by cold temperatures, with a minimum of -8°C (17°F) and an average of 4°C (39°F), peaking at 14°C (58°F). This month typically sees 64 mm (2.5 in) of precipitation over 13 days, accompanied by high humidity levels at 91%. In contrast, August brings a significant warm-up, with temperatures ranging from a minimum of 7°C (45°F) to an average of 19°C (66°F), reaching a high of 35°C (95°F). Precipitation increases slightly to 79 mm (3.1 in), occurring over 14 days, but humidity drops to a more comfortable 71%. For more information, check out Arnhem weather in August.

In January, the weather is quite chilly, with temperatures ranging from a minimum of -8°C (17°F) to a maximum of 14°C (58°F) and an average of 4°C (39°F). The month experiences 64 mm (2.5 in) of precipitation over 13 days, coupled with high humidity at 91%. In contrast, September presents a much milder climate, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 31°C (89°F), and an average temperature of 15°C (59°F). This month has slightly less precipitation at 59 mm (2.3 in) over 10 days, and the humidity decreases to 81%. For more details on September weather, you can check Arnhem weather in September.

In January, the weather is notably colder, with temperatures ranging from a minimum of -8°C (17°F) to a maximum of 14°C (58°F) and an average of just 4°C (39°F). The month experiences a significant amount of precipitation, totaling 64 mm (2.5 in) over 13 days, along with high humidity at 91%. In contrast, October brings milder temperatures, with the minimum at 1°C (34°F), an average of 12°C (54°F), and a high of 27°C (80°F). Precipitation in October is slightly higher at 85 mm (3.3 in) across 12 days, and humidity is still quite high at 88%. For more detailed information, check out the Arnhem weather in October.

January and November present distinct weather patterns, with January generally being colder. In January, temperatures can drop as low as -8°C (17°F), while the average temperature hovers around 4°C (39°F), peaking at 14°C (58°F). Contrastingly, November experiences milder conditions, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 19°C (67°F) and an average of 7°C (45°F). Precipitation is slightly higher in January at 64 mm (2.5 in) over 13 days compared to November's 52 mm (2.0 in) over 11 days. Both months share a high humidity of 91%, which can make the cold feel more intense in January. For details specific to November, you can refer to Arnhem weather in November.

In comparing the weather patterns of January and December, both months exhibit chilly temperatures, though January tends to be slightly colder overall. January's average temperature hovers around 4°C (39°F), with minimums dipping to -8°C (17°F), while December has a marginally milder average temperature of 5°C (42°F) with minimums reaching -4°C (24°F). Precipitation is more prevalent in December, totaling 87 mm (3.4 in) over 16 days compared to January's 64 mm (2.5 in) across 13 days. Humidity levels are quite similar, with January at 91% and December slightly higher at 92%. For more detailed insights, you can check Arnhem weather in December.

Compare Arnhem's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Arnhem

As January settles over Arnhem, it brings a distinct chill compared to the milder months that precede and follow it. With average temperatures hovering around 4°C (39°F) and the potential for sub-zero lows, this month stands out as one of the coldest in the year. The atmospheric humidity peaks at an impressive 91%, contributing to the frequent precipitation that graces 13 days of the month. While other months may flaunt clearer skies and warmer temperatures, January’s persistent dampness and brisk air create a unique winter ambiance, perfect for cozy indoor activities. For a deeper dive into how January fits into the broader weather patterns, check out the detailed insights on Arnhem Climate.