Last updated: August 21, 2025
In Uccle, Belgium, January unveils a chill that combines the city’s characteristic grey skies with a brisk climate. The maximum temperature reaches 14°C (57°F), while the average hovers around a cool 4°C (39°F), dipping to a frosty minimum of -7°C (20°F). A notable feature of the month is its substantial precipitation, amounting to 65 mm (2.5 in) across 12 damp days, resulting in a high humidity level of 91%. This interplay of temperatures and moisture defines January as a time where coats are essential and the atmosphere is rich with the promise of winter's beauty.
In Uccle, Belgium, January ushers in a notable chill, with temperatures ranging from a brisk -7°C (20°F) at their lowest to a mild 14°C (57°F) at their peak. The month's average settles around 4°C (39°F), providing a stark contrast to the warmer months that follow. As we transition into February, there’s a slight dip in the minimum temperature to -8°C (17°F), yet averages begin to climb subtly. The trend clearly indicates that winter is nearing its end, as March sees temperatures warming further, reaching average highs of 7°C (45°F). This pattern of gradual warming persists into spring, showcasing Uccle's shift from cold winter days to the budding brightness of the upcoming months, where April and May promise even higher averages that flirt with 10°C (50°F) and 13°C (57°F) respectively, foreshadowing the summer warmth ahead.
In January, Uccle, Belgium experiences an average precipitation of 65 mm (2.5 in), falling over approximately 12 days. This month marks the beginning of the year with a steady flow of rain, setting the tone for winter's dampness before the showers intensify in February and March, where precipitation slightly increases to 69 mm and 70 mm, respectively. The early months show a trend of relatively consistent rainfall, but as the seasons transition into spring, there’s a noticeable dip in April, with rainfall dropping to 37 mm (1.5 in). This pattern suggests that while January starts the year with moderate precipitation, the subsequent months vary, reflecting the dynamic weather typical of Belgium. By December, the yearly precipitation peaks, highlighting the cyclical nature of Uccle's climate.
In Uccle, Belgium, January is characterized by a notable average humidity of 91%, setting the stage for the damp, chilly atmosphere typical of winter. As the months progress, there’s a gentle decline in humidity; February sees a slight drop to 89%, and by March, it decreases further to 87%. This trend continues through the spring, reaching a low of 85% in April. Summer months bring a modest improvement, with humidity stabilizing at around 80% in July, before slightly increasing again in September to 82%. Interestingly, as autumn sweeps in, humidity spikes once more, peaking at 92% by November and December. This cyclical pattern highlights Uccle's distinctive seasonal humidity fluctuations, creating a rich tapestry of climate experiences throughout the year.
In January, Uccle experiences a UV Index of 1, indicating a low exposure category with an approximate burn time of 45 minutes. This trend of low UV levels persists into February with a slight increase to an index of 2. However, as spring approaches, the UV Index begins to rise more noticeably, jumping to 4 in March and reaching 5 in April, both categorized as moderate. By May, the index escalates to 7, marking the onset of summer with high exposure levels and a reduced burn time of just 25 minutes. The summer peak is reflected in June and July, where the index stabilizes at 8, classified as very high, leading to the shortest burn times of 15 minutes. As August transitions into September, there's a gradual decline with the index dropping back to 5. This downward trend continues into the fall months, ultimately returning to 1 in December. For detailed forecasts, visit Uccle UV Index.
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In Uccle, Belgium, the sunshine hours in January total 121 hours, marking the beginning of the year with a modest sparkle. As winter gives way to spring, a noticeable trend emerges: the days gradually grow brighter. By February, the sun graces the skies for 200 hours, and this increase continues in March with 266 hours of sunlight, heralding the arrival of longer, brighter days. The momentum builds through the spring and into summer, peaking in July with 406 hours of radiant sunshine, inviting residents to revel in outdoor activities and gatherings. As summer wanes into August and September, the hours of sunshine begin to recede to 379 and 319 respectively, ushering in the cooler autumn months. This cycle of sunshine culminates in December, where the days grow shorter again, offering only 143 hours of sunlight. Overall, Uccle's annual sunlight pattern is a captivating reminder of the seasons’ rhythmic dance between light and dark.
In Uccle, Belgium, the likelihood of sunny weather in January is relatively low, with only an 11% chance of clear skies. This sets the stage for a stark contrast as the months progress; February sees nearly a threefold increase to 30%, hinting at the gradual approach of spring. By March, the likelihood of sunshine climbs to 40%, and things continue to brighten, peaking in April at 50%. However, as summer arrives, the sunny days become more sporadic, with May and June both offering around 33% chance of sun. This trend illustrates a slow but steady transition from the cold, grey days of January to the more temperate and brightly lit months ahead, showcasing a shift in the weather that many look forward to as winter wanes.
In Uccle, Belgium, January welcomes about 8 hours of daylight, marking the year's darkest days. As the month progresses into February, daylight begins to extend to 10 hours, signaling the gradual return of sunlight. The trend continues into March, where the increase to 11 hours brings a sense of renewal and anticipation for spring. By April, days brighten further to 13 hours, and May delights with up to 15 hours of natural light, encouraging outdoor activities. The peak occurs in June, with a generous 16 hours of daylight, creating long, vibrant days. However, following this summer peak, daylight begins its gentle decline: July sees 15 hours, and this decrease continues through August with 14 hours. As autumn approaches, September provides 12 hours of light, while October and November settle back to 10 hours and 8 hours, respectively, before returning to the depths of winter in December, echoing the cycle of renewal and retreat that characterizes the seasons in Uccle.
In Uccle, Belgium, January ushers in a refreshing breeze with an average wind speed of 4.4 m/s (10 mph), setting the tone for the winter season. This month boasts a wind speed that is slightly lower than February's peak of 4.6 m/s (10 mph), but remains robust compared to the waning winds of spring, where April dips to just 3.4 m/s (8 mph). Interestingly, the wind picks up again in October with a speed of 4.3 m/s (10 mph), foreshadowing the return of invigorating gusts as the year draws to a close. Overall, the trend reveals that winter months feature stronger winds, while the summer lull sees wind speeds dip to their lowest, like in June, which averages only 2.8 m/s (6 mph). This fluctuation not only influences local climate patterns but also adds a dynamic element to Uccle's charm throughout the year.
Weather in Uccle varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Uccle, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of January and February, both months display relatively mild winter conditions, but February tends to be slightly warmer overall. January sees average temperatures ranging from a minimum of -7°C (20°F) to a maximum of 14°C (57°F), with an average temperature of 4°C (39°F). In contrast, February experiences temperatures that dip only slightly lower with a minimum of -8°C (17°F) and a maximum reaching 19°C (66°F), resulting in an average of 5°C (42°F). Precipitation levels are comparable, with January receiving 65 mm (2.5 in) and February slightly higher at 69 mm (2.7 in), both occurring over approximately 12 days. Humidity levels are also similar, with January at 91% and February slightly lower at 89%. For more detailed insights, check out Uccle weather in February.
January and March present a contrast in weather as winter begins to transition into spring. In January, temperatures range from a chilly -7°C (20°F) to a mild 14°C (57°F), with an average of 4°C (39°F). The month is characterized by high humidity levels at 91% and sees approximately 65 mm (2.5 in) of precipitation over 12 days. In comparison, March experiences a slight increase in overall warmth, with temperatures ranging from -8°C (17°F) to a maximum of 23°C (74°F), and an average of 7°C (45°F). Though March has a comparable level of precipitation at 70 mm (2.8 in) over 14 days, its humidity is slightly lower at 87%. For a more detailed overview of March weather in the area, check out Uccle weather in March.
January weather is characterized by cold temperatures, with minimums dropping as low as -7°C (20°F) and average highs only reaching about 14°C (57°F). The month typically sees considerable precipitation, accumulating to 65 mm (2.5 in) over 12 days, and the humidity remains high at 91%.
In contrast, April experiences a noticeable warming trend, with temperatures ranging from a minimum of -4°C (26°F) to a maximum of 27°C (80°F) and an average of around 10°C (50°F). Precipitation decreases to 37 mm (1.5 in) over 8 days, and humidity slightly lowers to 85%. For more details, you can visit Uccle weather in April.
In January, the weather is much colder, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 14°C (57°F), and an average of 4°C (39°F). The month experiences relatively high humidity at 91% and receives approximately 65 mm (2.5 inches) of precipitation over 12 days. In contrast, May brings a significant warming trend, with temperatures ranging from a minimum of 1°C (33°F) to a peak of 31°C (88°F), averaging 13°C (57°F). While May also has 12 days of precipitation, it sees slightly less rainfall, totaling 58 mm (2.3 inches) and lower humidity at 82%. For more detailed information on May weather, refer to Uccle weather in May.
When comparing the weather in January and June, there are distinct differences. In January, temperatures range from a frigid minimum of -7°C (20°F) to a mild maximum of 14°C (57°F), with an average temperature of 4°C (39°F). This month experiences significant humidity at 91% and sees approximately 65 mm (2.5 in) of precipitation over 12 days. Conversely, June brings a warm transformation, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 32°C (91°F), averaging 18°C (65°F). The precipitation remains relatively similar, with only a slight increase to 66 mm (2.6 in) occurring over just 9 days and humidity decreasing to 82%. For more details about the June weather in the region, you can visit Uccle weather in June.
In January, the weather is much colder, with temperatures ranging from a chilly -7°C (20°F) to a maximum of 14°C (57°F) and an average of 4°C (39°F). The month experiences significant humidity at 91% and has about 65 mm (2.5 in) of precipitation over 12 days, making it a damp and brisk time of year. In contrast, July brings a notable warmth with temperatures ranging from a minimum of 8°C (46°F) to a scorching high of 39°C (102°F), averaging around 19°C (66°F). Although July sees slightly more precipitation at 71 mm (2.8 in) over 11 days, the humidity drops to 80%, creating a more comfortable atmosphere. For a closer look at July's weather specifics, you can check Uccle weather in July.
January and August showcase a striking contrast in weather conditions. In January, temperatures can drop to a frigid minimum of -7°C (20°F), with an average of 4°C (39°F) and a maximum of 14°C (57°F). The month experiences significant humidity at 91%, coupled with 65 mm (2.5 in) of precipitation over 12 days. In stark contrast, August brings warmer weather, starting from a minimum of 8°C (46°F) and reaching an average of 19°C (66°F), with highs of up to 36°C (97°F). Although August has slightly more precipitation at 80 mm (3.2 in) over 14 days, the humidity is notably lower at 76%. For more detailed insights, you can check Uccle weather in August.
In January, Uccle experiences colder temperatures, with a minimum of -7°C and an average of 4°C, while in September, the weather is much milder, featuring a minimum of 4°C and an average of 15°C. The maximum temperatures in January reach only 14°C, whereas September can soar up to 33°C, making it feel significantly warmer. Both months see some precipitation, with January receiving 65 mm over 12 days and September getting slightly less at 55 mm over 9 days. Additionally, January's humidity is higher at 91%, compared to September's 82%, indicating a more damp and chilly atmosphere in the first month. For more details on September weather, check out Uccle weather in September.
In January, the weather is significantly colder, with temperatures ranging from a chilly -7°C (20°F) to a maximum of 14°C (57°F), and an average of 4°C (39°F). The month sees about 65 mm of precipitation over 12 days, accompanied by high humidity levels at 91%. In contrast, October brings milder temperatures, with a minimum of 1°C (34°F) and an average high of 25°C (77°F), making the average temperature rise to 12°C (54°F). Precipitation increases slightly to 76 mm over 13 days, and humidity remains high at 89%. For more details, check out Uccle weather in October.
In January, temperatures are generally much colder, with a minimum of -7°C (20°F) and an average of 4°C (39°F), compared to November, which sees milder temperatures ranging from a minimum of -2°C (28°F) to an average of 7°C (45°F). While both months experience significant humidity, January holds a slightly lower average of 91% compared to November's 92%. Precipitation levels are relatively similar, with January receiving 65 mm over 12 days, whereas November sees slightly less at 57 mm over 11 days. For more detailed insights into the November weather, you can visit Uccle weather in November.
In January, the weather reflects the depth of winter, with average temperatures ranging from a minimum of -7°C (20°F) to a maximum of 14°C (57°F). The month sees about 65 mm (2.5 in) of precipitation over 12 days, accompanied by high humidity levels of 91%. In contrast, December offers slightly milder conditions, with average temperatures from -5°C (24°F) to 15°C (59°F) and a higher precipitation total of 93 mm (3.7 in) spread over 17 days. Humidity in December is comparable at 92%. For a closer look at the December weather patterns, visit Uccle weather in December.
January in Uccle presents a stark contrast to the milder months of the year, characterized by chilly average temperatures and notable humidity levels. With the coldest days often plunging below freezing, residents experience a unique blend of winter's crispness and occasional rain, contributing to the overall dampness that defines the month. While precipitation is spread across several days, the vibrant changes in weather can be both invigorating and challenging. For those looking to understand Uccle's climatic nuances, January is a reminder of winter's hold before the gradual warmth of spring arrives. For a deeper dive into the region's weather patterns, check out Uccle Climate.