Last updated: August 27, 2025
January in Leiden, Netherlands presents a chilly and damp atmosphere, where temperatures hover between a maximum of 13°C (55°F) and a minimum of -4°C (25°F), with an average of 5°C (42°F). This month sees an abundant precipitation of 66 mm (2.6 in) spread over 14 days, contributing to a notable humidity level of 87%. Visitors can expect overcast skies and a distinct winter chill, making it essential to dress warmly and prepare for the frequent rain.
In Leiden, Netherlands, January marks the heart of winter, with temperatures that can dip as low as -4°C (25°F) at night. The month features an average temperature of 5°C (42°F), slowly transitioning to milder weather as it progresses. On particularly warm days, highs can reach a pleasant 13°C (55°F), hinting at the impending arrival of spring. This blend of chilly evenings and moderate afternoons creates a dynamic winter atmosphere, ideal for cozy indoor activities while still offering opportunities to enjoy the crisp air. As January winds down, anticipation builds for the gradual warming that February brings, showcasing the region's evolving climate.
In January, Leiden experiences a moderate amount of precipitation, averaging 66 mm (2.6 in) over approximately 14 days of rain. This sets a promising tone for the months ahead, as February and March see an uptick in both precipitation and rainy days, with February reaching 72 mm (2.8 in) and maintaining a similar number of rainy days. The trend continues into early spring with March matching January's rainfall but showing no significant reduction in wet weather. However, as the city transitions to April, there's a noticeable decline in precipitation, dropping to 43 mm (1.7 in) and just 9 rainy days, heralding the arrival of drier days. This pattern of fluctuation in rainfall continues throughout the year, with notable peaks in late summer and autumn, particularly in October, which presents the highest rainfall at 120 mm (4.7 in) over 17 days. Overall, Leiden's January weather offers a glimpse into a year characterized by a blend of wet and dry spells, emphasizing the region's dynamic climate.
In January, Leiden experiences a notable humidity level of 87%, which sets the tone for a winter characterized by dampness. This trend continues throughout February, maintaining the same high percentage. As spring approaches in March, humidity slightly drops to 86%, and it continues a gradual descent through April and May, reaching 84%. The summer months of June and July bring a further decrease, with humidity levels hitting 81% and 80%, respectively. However, as autumn arrives, the humidity begins to rise again, peaking at 87% in both November and December. This cyclical pattern showcases Leiden’s consistently high humidity during the winter and autumn months, contributing to its characteristic cool and moist climate.
In January, Leiden experiences a low UV Index of 1, meaning sun exposure poses minimal risk with a burn time of 45 minutes. This trend of low UV levels continues into February, maintaining the same index and burn time. As spring approaches, the UV Index begins to rise, reaching 4 in March and 5 in April, indicating moderate exposure risks with reduced burn times of 30 minutes. The summer months see a significant jump, peaking at a high of 8 in June and July, where the risk is categorized as very high, and the burn time shrinks to just 15 minutes. As the season transitions to fall, the UV levels gradually decrease, with moderate levels returning in September, October, and ultimately dropping back to low levels in November and December. This pattern highlights the shifting UV exposure throughout the year in Leiden, reminding residents and visitors alike to be mindful of sun safety, especially during the sunnier months. For more detailed information on UV levels throughout the year, check out Leiden UV Index.
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In January, Leiden experiences a modest 117 hours of sunshine, signaling the depths of winter. However, as the months transition, the city awakens, with February providing a noticeable increase to 202 hours. The trend continues its ascent into spring, culminating in a vibrant 290 hours in March and an impressive 367 hours in April as the days lengthen and warmth returns. This sunny momentum peaks in the summer, with June nudging 422 hours and July reaching a delightful 431 hours. As autumn begins, sunshine hours start to taper, with 331 hours in September giving way to 245 hours in October and further decline into the winter months. Overall, the progression from winter's low light to the radiant summer months highlights Leiden's dynamic climate, ensuring residents enjoy a rich variety of daylight throughout the year.
In January, Leiden, Netherlands, experiences a modest 18% chance of sunny weather, setting the stage for a wintry atmosphere. This likelihood marks the beginning of a gradual upward trend in sunshine, with percentages climbing to 27% in February and reaching 36% by March. As spring approaches, the likelihood of sunny days continues to improve, peaking at 42% in April. Interestingly, the chances of sunshine in the following months—such as May, June, and July—remain relatively stable, hovering around the mid-30s to 40%. This trend suggests a seasonal shift away from the starkness of winter, inviting longer, sunnier days as the year progresses.
In Leiden, the transition from winter to spring is beautifully marked by the gradual increase in daylight hours. January begins with a modest 8 hours of sunlight, setting the tone for a slow but steady ascent. By February, this extends to 9 hours, hinting at brighter days ahead. As spring unfolds, March brings 11 hours, paving the way for a significant leap in April with 13 hours of daylight, further reaching 15 hours in May. The culmination of summer arrives in June and July, each boasting 16 hours of glorious sunlight, perfect for enjoying the season. However, as autumn approaches, daylight begins its descent, with August offering a still-generous 14 hours, which then tapers to 12 hours in September and continues down to 8 hours by November. December, the darkest month, closes the year with just 7 hours of daylight, reminding us of nature's cyclical rhythm and the promise of light returning.
In Leiden, Netherlands, January greets residents with a brisk average wind speed of 5.9 m/s (13 mph), a figure that remains steady into February, keeping the atmosphere lively. As the seasons shift, March sees a slight decline to 5.6 m/s (13 mph), hinting at the arrival of spring, while April and May continue the trend of gentler breezes, dropping to 5.4 m/s (12 mph) and 5.2 m/s (12 mph) respectively. The summer brings a notable decrease, with June's winds mellowing to 4.0 m/s (9 mph), creating a more serene environment. However, by October, as autumn takes hold, the winds pick up again to a robust 6.3 m/s (14 mph), showcasing nature's dramatic shifts. This rollercoaster of wind speeds captures the evolving character of Leiden from the chill of winter through the calm of summer, back to the spirited gusts of autumn, painting a vibrant picture of the city's seasonal landscape.
Weather in Leiden varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Leiden, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between January and February, we can observe some notable differences despite both months sharing similar average temperatures of around 5°C (42°F). January experiences milder conditions with minimum temperatures at -4°C (25°F) and maximums reaching 13°C (55°F), while February sees a cooler minimum of -8°C (19°F) and slightly warmer maximums at 16°C (60°F). Precipitation in January totals 66 mm (2.6 in) over 14 days, whereas February has slightly higher precipitation at 72 mm (2.8 in) across 13 days. Both months maintain a consistent humidity level of 87%, making for rather damp conditions overall. For more details on February weather, you can visit Leiden weather in February.
In comparison to January, March experiences slightly milder temperatures, with an average rising from 5°C (42°F) in January to 7°C (44°F) in March. While January has a maximum temperature of 13°C (55°F), March sees a warmer high of 18°C (65°F), although both months can dip to chilly lows of -4°C (25°F) and -7°C (20°F), respectively. Precipitation levels remain comparable, with January receiving 66 mm (2.6 in) and March slightly higher at 71 mm (2.8 in), both experiencing rain on about 14 days. Humidity stays relatively consistent, with January at 87% and March at 86%. For a detailed look at March weather specifically, you can visit Leiden weather in March.
In January, temperatures in Leiden are quite chilly, with averages hovering around 5°C (42°F) and nighttime lows dropping to -4°C (25°F). The month is also marked by relatively high humidity at 87% and frequent precipitation, totaling 66 mm (2.6 in) over about 14 days. In contrast, April brings a welcome shift in weather, with average temperatures rising to 9°C (49°F) and maximums reaching up to 24°C (75°F). Although April sees less rainfall, with just 43 mm (1.7 in) over 9 days, the slightly lower humidity of 85% contributes to a more pleasant atmosphere. For those interested in more details, you can find information about Leiden weather in April.
In January, the weather is characterized by cold temperatures, with a minimum of -4°C (25°F) and an average of 5°C (42°F), while the maximum reaches around 13°C (55°F). This month experiences significant precipitation, totaling 66 mm (2.6 in) over 14 days, accompanied by high humidity levels of 87%. In contrast, May brings a much warmer climate, with temperatures ranging from a minimum of 4°C (40°F) to an average of 13°C (55°F), peaking at 27°C (80°F). The precipitation in May is slightly lower at 58 mm (2.3 in) across 11 days, and humidity remains fairly high at 84%. For more details on May weather, you can check out Leiden weather in May.
In January, temperatures in Leiden can drop to a minimum of -4°C (25°F), with averages around 5°C (42°F) and a maximum of 13°C (55°F). The month experiences high humidity at 87%, contributing to a chilly atmosphere, with precipitation occurring on about 14 days, totaling 66 mm (2.6 in). In stark contrast, June brings significantly warmer conditions, with minimum temperatures around 9°C (49°F) and average highs reaching 29°C (84°F). Although June sees slightly higher precipitation at 70 mm (2.8 in) over 10 days, the humidity levels are slightly lower at 81%. For more detailed insights into the weather during this month, visit Leiden weather in June.
January and July present stark contrasts in weather. January experiences colder temperatures, with minimums dipping to -4°C (25°F) and average highs around 13°C (55°F). The month is characterized by high humidity at 87% and precipitation occurring on 14 days, totaling 66 mm (2.6 in). In contrast, July boasts a much warmer climate, with minimum temperatures starting at 11°C (52°F) and average highs soaring to 33°C (92°F). The humidity is relatively lower at 80%, and precipitation is slightly higher at 68 mm (2.7 in), spread over 13 days. For more detailed insights on weather during July, visit Leiden weather in July.
In January, the weather is notably cold, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 13°C (55°F). The average temperature hovers around 5°C (42°F), accompanied by relatively high humidity at 87% and precipitation occurring on 14 days, totaling 66 mm (2.6 in).
Conversely, August presents a much warmer and more humid climate, with temperatures varying from a minimum of 12°C (53°F) to a maximum of 30°C (86°F) and an average of 19°C (66°F). The month sees slightly more precipitation at 95 mm (3.7 in) over 15 days, but the humidity is lower at 78%. For more details on the warm weather experiences in August, visit Leiden weather in August.
In January, temperatures can drop to a chilly minimum of -4°C (25°F), with an average of 5°C (42°F) and a maximum of 13°C (55°F). The month is characterized by high humidity at 87% and receives around 66 mm (2.6 in) of precipitation over 14 days. Conversely, September offers a much milder climate with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 27°C (81°F) and an average of 16°C (61°F). While it experiences slightly more precipitation at 96 mm (3.8 in) over 13 days, humidity decreases to 83%. For more details on the weather trends in September, you can visit Leiden weather in September.
In January, temperatures in Leiden typically range from a chilly -4°C (25°F) at night to a mild 13°C (55°F) during the day, with an average of around 5°C (42°F). The month experiences approximately 66 mm (2.6 in) of precipitation over about 14 days, contributing to a high humidity of 87%. In contrast, October brings milder temperatures with a minimum of 4°C (39°F) and a maximum of 23°C (74°F), averaging around 13°C (56°F). This month is wetter than January, with around 120 mm (4.7 in) of precipitation spread over 17 days, and a slightly lower humidity at 86%. For more detailed information about October weather, you can check Leiden weather in October.
In January, the weather is generally colder, with average temperatures ranging from a chilly -4°C (25°F) at night to a mild 13°C (55°F) during the day. This month sees about 66 mm (2.6 in) of precipitation over 14 days, coupled with high humidity levels of 87%. In contrast, November offers a more temperate climate, with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 17°C (63°F). The precipitation is slightly higher at 70 mm (2.8 in) over 15 days, maintaining the same humidity levels of 87%. Overall, while both months are wet and humid, November is notably milder than January. For more detailed insights, check out Leiden weather in November.
In Leiden, January and December exhibit quite similar weather patterns, though January tends to be slightly colder. January sees minimum temperatures dropping to -4°C (25°F) and an average of 5°C (42°F), while December records a minimum of -2°C (28°F) and an average of 6°C (44°F). Precipitation is notably higher in December, with 110 mm (4.3 in) falling over 18 days compared to January's 66 mm (2.6 in) over 14 days. Humidity levels are quite comparable, with January at 87% and December slightly lower at 86%. For more detailed information on December's weather, you can check Leiden weather in December.
In January, Leiden experiences a distinct shift in weather compared to other months, with chilly temperatures averaging around 5°C and frequent precipitation, often making it one of the wetter months of the year. With days of rain adding up to a total of 66 mm, the humidity remains high at 87%, creating a damp atmosphere. While the mildest days may reach a maximum of 13°C, the nights can drop to as low as -4°C, reminding residents and visitors alike that winter is firmly in place. For those looking to understand how January contrasts with other months, more detailed information can be found at Leiden Climate.