Last updated: August 27, 2025
In January, Katwijk aan Zee experiences a cool coastal climate, with maximum temperatures reaching 13°C (55°F) and averages hovering around 5°C (42°F). The month can be chilly, with minimum temperatures dipping to a brisk -4°C (25°F). Visitors should prepare for frequent rain, as 66 mm (2.6 in) of precipitation falls over approximately 14 days, contributing to a high humidity level of 87%. This blend of cool air and moisture creates an invigorating atmosphere, perfect for winter beach strolls and cozy local cafés.
In January, Katwijk aan Zee experiences a chilly embrace, with temperatures ranging from a brisk -4°C (25°F) to a mild 13°C (55°F) as the month progresses. The average hovers around 5°C (42°F), offering a taste of winter by the sea. This month marks one of the colder periods in the year, as temperatures begin to trend upward toward spring. Notably, February hints at the warmth to come, with slightly lower minimums but a peak of 16°C (60°F), suggesting a gradual transition. By March, the mercury rises further, signaling the early stirrings of spring with an increased average of 7°C (44°F). This gradual warming trend throughout winter invites visitors to enjoy the coastal scenery while bundled up, anticipating the milder months ahead.
In January, Katwijk aan Zee experiences a moderate amount of precipitation, with 66 mm (2.6 in) of rain falling over approximately 14 days. This sets the stage for a wet winter, as the month typically heralds the onset of the year’s damp weather pattern. As winter progresses into February, precipitation slightly increases to 72 mm (2.8 in), maintaining a similar number of rainy days. Interestingly, the early months of the year see a trend of consistent rainfall, with March following closely behind at 71 mm (2.8 in). This steady accumulation underscores the coastal town's reputation for a relatively wet start to the year, forming a contrast with the drier spell that surfaces in the spring months. Ultimately, while January may be among the wetter months, it lays the groundwork for the shifting precipitation patterns that follow, leading to a dynamic annual cycle.
In January, Katwijk aan Zee experiences high humidity levels at 87%, setting the tone for a winter characterized by moisture. This pattern continues into February, maintaining the same humidity, while a slight dip occurs in March at 86%. As spring approaches, a gradual decline is observed, with humidity easing to 85% in April and 84% in May. The summer months bring a further drop, reaching a low of 80% in July. However, as autumn sets in, humidity levels rise again, peaking back at 87% in November. By December, the humidity stabilizes at a balanced 86%, reflecting a cyclical trend that underscores the coastal area's consistent moisture throughout the year. Overall, the data highlights a pattern of high humidity during winter and fall, contrasting with the more moderate levels of spring and summer.
In January, Katwijk aan Zee experiences a low UV Index of 1, indicating that sun exposure is relatively safe with a burn time of 45 minutes. This trend of low exposure continues into February, albeit with a slight increase to an index of 2. As spring approaches, the UV Index rises significantly, reaching 4 in March and 5 in April, transitioning into a moderate exposure category where burn times reduce to 30 minutes. The UV Index peaks in the summer months, particularly in June and July, where it reaches a high of 8, marking a very high exposure risk and necessitating careful sun protection with a burn time slashed to only 15 minutes. As summer wanes into September, the index drops back to 5, followed by a gradual decline into the winter months, concluding the year with the familiar low indices of 2 in November and 1 in December. For a detailed look at UV trends throughout the year, check the Katwijk aan Zee UV Index.
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In January, Katwijk aan Zee greets the new year with a modest 117 hours of sunshine, a gentle reminder of winter's hold. As February rolls in, the days begin to brighten, yielding 202 hours of sunlight, inviting a sense of promise. March further elevates the spirits with 290 hours, signaling the approach of spring. By April, the sunshine explodes to 367 hours, painting the sandy shores with warmth and vibrancy. The trend continues into May and June, where travelers bask in 419 and 422 hours respectively, perfect for beach outings and leisurely strolls along the coast. July peaks at 431 hours, a golden month that perfectly encapsulates the essence of summer, before gradually tapering off in August with 402 hours. As autumn arrives, sunlight starts to retreat, revealing 331 hours in September, followed by a steadier decline through autumn to 245 hours in October, and further down to 199 hours in November. December brings a gentle closure with 142 hours of sunshine, wrapping up the year on a reflective note. This rhythmic shift between seasons highlights the dynamic climate of Katwijk aan Zee, where each month unveils its own unique charm under the sun.
In January, Katwijk aan Zee, Netherlands, experiences a modest 18% chance of sunny weather, making it one of the cloudier months of the year. However, as winter transitions to spring, the likelihood of sunshine steadily increases, with February climbing to 27% and March reaching 36%. This upward trend continues into April and May, where sunny days become more frequent, peaking at 42% in April. As summer approaches, the chances hover around 40% in June before gradually declining again later in the year. This pattern highlights a clear seasonal shift, where the likelihood of clear skies rises significantly as the months progress from January to spring and into summer, creating a delightful anticipation for sunnier days ahead.
In Katwijk aan Zee, January marks the beginning of a gradual shift towards longer days, with approximately 8 hours of daylight. As winter yields to spring, daylight steadily increases, reaching 9 hours in February and expanding to a refreshing 11 hours by March. The pattern continues, with April showcasing 13 hours, and May basking in a delightful 15 hours, heralding the full bloom of spring and the approach of summer. June and July peak with 16 hours of daylight, offering plenty of opportunities for outdoor activities under the sun. As summer transitions into autumn, the days gradually shorten, retreating to 14 hours in August and then tapering off to 12 hours in September. By the end of the year, November and December see daylight dwindle back down to 8 and 7 hours respectively. This cyclical metamorphosis illustrates the vibrant dance of daylight across the seasons in this charming coastal town.
In January, the coastal winds of Katwijk aan Zee reach an average speed of 5.9 m/s (13 mph), consistent with February's breezy conditions. This moderate wind sets the stage for the winter landscape, where the invigorating air invites outdoor adventures along the beach. As the seasons transition, the winds gradually ease, dropping to 5.6 m/s in March and further to 5.4 m/s by April, creating a notably calmer atmosphere as spring approaches. This trend continues into the warmer months, with wind speeds dipping to 4.0 m/s (9 mph) in June, perfect for leisurely strolls along the shoreline. However, come October, Katwijk experiences a resurgence of wind activity, boasting the year's highest average at 6.3 m/s (14 mph), signaling the dramatic shifts of autumn. In summary, January's breezy beginnings lead into a year characterized by varying wind patterns, reflecting the beauty of each season along this picturesque Dutch coast.
Weather in Katwijk aan Zee varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Katwijk aan Zee, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, Katwijk aan Zee experiences a chilly climate with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 13°C (55°F), alongside an average temperature of 5°C (42°F). The month sees 66 mm (2.6 in) of precipitation over approximately 14 days, while humidity remains high at 87%.
In contrast, February is slightly colder, with temperatures dipping to a minimum of -8°C (19°F), although the average remains the same at 5°C (42°F); however, the maximum temperature rises to 16°C (60°F). Precipitation increases marginally to 72 mm (2.8 in) over 13 days, with humidity remaining consistent at 87%. Overall, while both months feature similar humidity and average temperatures, February offers slightly milder maximum temperatures and a bit more precipitation. For a detailed look at the weather trends, check out Katwijk aan Zee weather in February.
In January, the weather is generally cold, with temperatures averaging around 5°C (42°F) and reaching highs of 13°C (55°F). The month sees around 66 mm (2.6 in) of precipitation over 14 days, accompanied by high humidity at 87%. In contrast, March shows a slightly warmer trend, with average temperatures rising to 7°C (44°F) and maximums hitting 18°C (65°F). Although precipitation increases slightly to 71 mm (2.8 in) over the same number of rainy days, humidity remains similar at 86%. For a more detailed comparison of conditions, you can explore Katwijk aan Zee weather in March.
The weather in January is notably colder than in April, with average temperatures hovering around 5°C (42°F), while April sees a mild average of 9°C (49°F). January experiences a wider range of temperatures, from a chilly -4°C (25°F) to a maximum of 13°C (55°F), compared to April's milder extremes of 1°C (35°F) to 24°C (75°F). Additionally, January has more precipitation, totaling 66 mm (2.6 in) over 14 days, while April's rainfall is lighter at 43 mm (1.7 in) across just 9 days. Despite the slight difference in humidity, with January at 87% and April at 85%, the overall weather conditions in April offer a more inviting atmosphere. For more on what to expect, check out Katwijk aan Zee weather in April.
The weather in January is quite chilly, with temperatures ranging from a low of -4°C (25°F) to a high of 13°C (55°F), averaging around 5°C (42°F). During this month, residents experience a fair amount of precipitation, with 66 mm (2.6 in) falling over 14 days and humidity levels lingering at a high 87%. In contrast, May brings much warmer weather, with temperatures ranging from a minimum of 4°C (40°F) to a pleasant maximum of 27°C (80°F), averaging 13°C (55°F). Although May has slightly less rainfall at 58 mm (2.3 in) over 11 days, humidity remains close at 84%. For more details about the weather patterns in May, you can check Katwijk aan Zee weather in May.
In January, the weather is quite chilly, with temperatures ranging from a frigid -4°C (25°F) to a mild 13°C (55°F), and an average of around 5°C (42°F). This month experiences significant precipitation of 66 mm (2.6 in) spread over 14 days, coupled with high humidity at 87%, making it feel even colder. In contrast, June brings much warmer conditions, with temperatures ranging from a comfortable 9°C (49°F) to a pleasant maximum of 29°C (84°F), and an average of 17°C (62°F). While June sees slightly higher precipitation at 70 mm (2.8 in) over just 10 days, the humidity drops to 81%, contributing to a more enjoyable and summery atmosphere. For a closer look at June weather, visit Katwijk aan Zee weather in June.
In January, the weather in Katwijk aan Zee features chilly temperatures, with a minimum of -4°C (25°F) and an average of 5°C (42°F), peaking at 13°C (55°F). The month also brings considerable precipitation, totaling 66 mm (2.6 in) over approximately 14 days, paired with a high humidity level of 87%. In contrast, July offers a much warmer climate, with temperatures ranging from a minimum of 11°C (52°F) to an average of 18°C (65°F), and a maximum of 33°C (92°F). Although July sees slightly higher precipitation at 68 mm (2.7 in) spread over about 13 days, the humidity is lower at 80%. For more detailed information, check out Katwijk aan Zee weather in July.
In Katwijk aan Zee, January presents a chillier climate with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 13°C (55°F), accompanied by high humidity at 87%. The month sees about 66 mm (2.6 in) of precipitation over 14 days, making it a fairly wet winter month. In contrast, August boasts much warmer temperatures, with average lows of 12°C (53°F) and highs reaching 30°C (86°F). It experiences slightly more precipitation at 95 mm (3.7 in) over 15 days, but with lower humidity at 78%, creating a more pleasant summer atmosphere. For a detailed look at the weather in August, check out Katwijk aan Zee weather in August.
In January, the weather is quite chilly, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 13°C (55°F), averaging around 5°C (42°F). Precipitation is moderate, with 66 mm (2.6 in) over 14 days and high humidity at 87%. In contrast, September enjoys a much milder climate, with minimum temperatures of 8°C (46°F) and a pleasant average of 16°C (61°F), peaking at 27°C (81°F). Although September sees slightly more precipitation at 96 mm (3.8 in) across 13 days, the humidity is lower at 83%. For a closer look at the weather specifics in September, you can check out Katwijk aan Zee weather in September.
January and October exhibit notable differences in weather patterns. In January, temperatures range from a chilly -4°C (25°F) at night to a mild 13°C (55°F) during the day, with an average of 5°C (42°F). Precipitation is moderate, with 66 mm (2.6 in) falling over approximately 14 days, and the humidity hovers around 87%. In contrast, October experiences a warmer climate with minimum temperatures of 4°C (39°F) and maximums reaching up to 23°C (74°F), averaging 13°C (56°F). However, it is also wetter, with precipitation totaling 120 mm (4.7 in) over about 17 days, and humidity slightly lower at 86%. For more detailed insights, you can visit Katwijk aan Zee weather in October.
In comparing the weather of January and November, it becomes clear that November is generally milder. January experiences a chillier climate with minimum temperatures dipping as low as -4°C (25°F), while November starts at a minimum of 1°C (33°F). The average temperature in January is 5°C (42°F), compared to 9°C (48°F) in November, leading to a more comfortable feel during the latter month. Additionally, while both months have similar humidity levels at 87%, November sees slightly more precipitation—70 mm (2.8 in) over 15 days compared to January's 66 mm (2.6 in) across 14 days. For more specific details about November weather in Katwijk aan Zee, you can visit Katwijk aan Zee weather in November.
When comparing January and December weather, January tends to be slightly colder, with minimum temperatures dropping to -4°C (25°F) compared to December's minimum of -2°C (28°F). The average temperatures are quite similar, with January averaging 5°C (42°F) and December averaging 6°C (44°F). Both months see the same maximum temperature of 13°C (55°F). Precipitation is notably higher in December, with 110 mm (4.3 in) over 18 days, while January receives 66 mm (2.6 in) across 14 days. Humidity remains fairly consistent, with January at 87% and December at 86%. For more detailed insights into December weather patterns, you can explore Katwijk aan Zee weather in December.
January in Katwijk aan Zee presents a unique blend of winter’s chill and the promise of spring, with temperatures dipping to as low as -4°C and rarely soaring above 13°C. This month is characterized by higher humidity levels, averaging around 87%, and a significant amount of precipitation, making it one of the wetter months of the year. Unlike the mild summer months that invite beachgoers, January’s cool air and frequent rain create a serene atmosphere perfect for cozy indoor activities and wrapped-up seaside strolls. If you're curious about the climate throughout the year, explore more at Katwijk aan Zee Climate.