Last updated: August 21, 2025
March in Brussels, Belgium brings a mix of early spring charm and lingering winter chill. With maximum temperatures reaching 23°C (74°F) and dropping to a brisk minimum of -8°C (17°F), the weather can surprise even the most seasoned locals. The average temperature hovers around a cool 7°C (45°F), making layers essential for staying comfortable. This month experiences about 70 mm (2.8 in) of precipitation over 14 days, highlighting the often overcast skies typical of Brussels. Coupled with a high humidity level of 87%, March showcases the city's unpredictable climate as it transitions into warmer seasons. Expect both drizzles and sunny spells as you navigate this vibrant capital!
In March, Brussels, Belgium begins to shake off the chill of winter, with temperatures gradually climbing as spring approaches. The minimum temperature, still brisk at -8°C (17°F), hints at the last remnants of frost, while the average temperature rises to a comfortable 7°C (45°F), making outdoor activities more appealing. As days lengthen, the maximum temperature can reach a delightful 23°C (74°F), inviting residents and visitors alike to revel in the city's vibrant parks and open cafés. This transition marks a significant warm-up from the colder months, showcasing a welcoming shift that sets the stage for the blossoming beauty of April.
March in Brussels sees a slight uptick in precipitation, with 70 mm (2.8 in) of rain falling over 14 days. This marks a gradual increase from the preceding months of January and February, where rainfall measured 65 mm and 69 mm, respectively. As winter wanes, March often brings a mix of showers, hinting at the impending spring. This trend continues into April, where precipitation takes a dip to 37 mm (1.5 in), suggesting that the wet, grey days of early spring give way to sunnier, drier conditions. Overall, March serves as a transitional month, highlighting an increase in rain that prepares Brussels for the blossoming season ahead.
As we transition into March, Brussels experiences a noticeable dip in humidity, averaging 87% compared to the heftier 91% and 89% of the preceding winter months. This reduction reflects the gradual warming trend as spring approaches, setting the stage for lighter and drier conditions in the coming weeks. By April, humidity is projected to drop even further to 85%, hinting at a shift towards a more temperate climate. Overall, March serves as a pivotal month, bridging the lofty humidity of winter with the refreshing, milder air of springtime in Belgium.
As March unfolds in Brussels, Belgium, the UV Index takes a noticeable leap to 4, marking the transition into the moderate exposure category and reducing the safe sunburn time to just 30 minutes. This uptick indicates a significant shift from the low levels observed in January and February, encouraging residents and visitors alike to start being more vigilant about sun protection. With April's index poised to rise further to 5, it's essential to adjust your sun safety practices as the days get warmer and sunnier. For detailed information on the UV Index throughout the year, check out Brussels UV Index.
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As March unfolds in Brussels, the city welcomes a remarkable increase in sunshine hours, soaring to 266 hours, a significant leap from January's mere 121 hours. This transition marks a slow but steady shift toward brighter days, setting the tone for spring. With each passing month, the city basks in increasingly longer daylight, showcasing an upward trend that continues into April and May, where sunshine reaches a peak of 346 and 394 hours respectively. March serves as a delightful bridge between the cold winter's end and the vibrant energy of spring, inviting residents and visitors alike to revel in the beauty of longer, sunnier days for the first time in the year.
As March approaches in Brussels, the likelihood of sunny weather begins to brighten, with chances rising to 40%—a notable increase from the winter months. This upward trend is promising, transitioning from January's dismal 11% and February's modest 30%, signaling a shift toward more favorable conditions. While April further elevates the chances to 50%, March serves as a compelling precursor to spring, hinting at the blossoming days ahead. With sunlight becoming more prevalent, residents and visitors alike can look forward to enjoying the early signs of brighter days in the heart of Belgium.
As March arrives in Brussels, daylight begins to stretch, offering residents about 11 hours of light each day, a clear progression from 10 hours in February. This gradual increase marks the transition to spring, where the days continue to lengthen, culminating in a substantial 13 hours by April. The trend showcases a rising harmony between sunlight and daily life, as the city shakes off winter's grip. As daylight increases, so does the vibrancy of outdoor activities, reflecting a growing anticipation for the warmer months ahead. This steady ascent in daylight not only brightens the atmosphere but also invites the enchanting sights of spring to flourish in the heart of Brussels.
In March, Brussels experiences a gentle breeze, with an average wind speed of 4.0 m/s (9 mph). This marks a slight decline from the winter months of January and February, which boast average wind speeds of 4.4 m/s and 4.6 m/s, respectively. As the city transitions into spring, it's evident that the winds begin to ease, dropping further to 3.4 m/s (8 mph) by April. However, this March wind is still invigorating, encouraging residents and visitors to embrace outdoor activities as nature begins to awaken. Interestingly, the pattern reveals that while the winds are milder, they maintain a favorable rhythm that complements the blossoming landscape of the city.
Weather in Brussels varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Brussels, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of March and January, March experiences a wider temperature range, with minimums dropping to -8°C (17°F) and maximums reaching up to 23°C (74°F), whereas January's temperatures hover between -7°C (20°F) and 14°C (57°F). Precipitation is slightly higher in March at 70 mm (2.8 in) over 14 days, compared to January's 65 mm (2.5 in) across 12 days. Additionally, while both months exhibit high humidity, March's average of 87% is marginally lower than January's 91%. For a more detailed look at January weather, you can visit Brussels weather in January.
In comparing the weather of March to that of February, we see a noticeable shift in temperatures. While both months share a minimum temperature of -8°C (17°F), March boasts a higher average temperature of 7°C (45°F) compared to February's 5°C (42°F). Additionally, March reaches a maximum of 23°C (74°F), surpassing February's high of 19°C (66°F). Precipitation levels are similar, with March receiving 70 mm (2.8 in) over 14 days, slightly more than February's 69 mm (2.7 in) across 12 days. Humidity remains consistently high, with March at 87% and February at 89%. For a closer look at February's specific weather patterns, check out Brussels weather in February.
In March, temperatures range from a minimum of -8°C (17°F) to a maximum of 23°C (74°F), with an average of 7°C (45°F). This month experiences more precipitation, totaling 70 mm (2.8 in) across 14 days, and high humidity levels at 87%. In contrast, April sees a milder temperature range, with lows of -4°C (26°F) and highs reaching 27°C (80°F), averaging 10°C (50°F). Precipitation drops significantly to 37 mm (1.5 in) over just 8 days, along with slightly lower humidity at 85%. This transition marks a shift toward warmer and drier conditions. For more detailed insights, check Brussels weather in April.
When comparing the weather in March and May, notable differences emerge. March experiences a broader temperature range, with minimums dropping to -8°C (17°F) and maximums reaching 23°C (74°F), while May typically sees milder conditions, with temperatures ranging from a minimum of 1°C (33°F) to a pleasant maximum of 31°C (88°F). March also has higher humidity levels at 87%, compared to May's 82%, and more frequent precipitation, occurring on 14 days in March versus 12 days in May. The total precipitation is slightly lower in May at 58 mm (2.3 in) compared to March's 70 mm (2.8 in). For a deeper look at the conditions you can expect in May, check out Brussels weather in May.
In March, temperatures begin to rise, with a minimum of -8°C (17°F) and an average of 7°C (45°F), though it can reach as high as 23°C (74°F) on warmer days. The month experiences considerable precipitation at 70 mm (2.8 in) spread over 14 days, and humidity is relatively high at 87%. In contrast, June brings more stable and warmer weather, with temperatures ranging from a minimum of 7°C (44°F) to an average of 18°C (65°F), peaking at a scorching 32°C (91°F). This month has slightly less precipitation at 66 mm (2.6 in) over just 9 days, and humidity decreases a bit to 82%. For more specific details about the weather during this month, you can check Brussels weather in June.
March and July present contrasting weather experiences, showcasing the transition from a cool, early spring to the warmth of summer. In March, temperatures can drop as low as -8°C (17°F) with an average of 7°C (45°F) and a maximum reaching 23°C (74°F). The month is characterized by high humidity at 87%, with 70 mm (2.8 in) of precipitation spread over 14 days. In contrast, July offers a much milder climate with minimum temperatures of 8°C (46°F), an average of 19°C (66°F), and maximums soaring to 39°C (102°F). The precipitation remains similar at 71 mm (2.8 in) but occurs over just 11 days, with a slightly lower humidity of 80%. For more details, you can check out Brussels weather in July.
March and August present significantly different weather experiences, reflecting the transition from winter to summer. In March, temperatures fluctuate from a chilly minimum of -8°C (17°F) to a pleasant average of 7°C (45°F), while in August, the temperature range begins at a milder 8°C (46°F) and can soar to a peak of 36°C (97°F). Both months receive similar levels of precipitation, around 70-80 mm, albeit with March experiencing slightly higher humidity at 87% compared to August's 76%. For those interested in specific August conditions, check out Brussels weather in August.
March and September present notably different weather patterns, reflecting the transition between winter and autumn. In March, temperatures can dip as low as -8°C (17°F), with an average of 7°C (45°F) and a maximum of 23°C (74°F). The month often sees considerable precipitation, totaling 70 mm (2.8 in) over about 14 days, along with high humidity at 87%. In contrast, September offers milder conditions, with minimum temperatures of 4°C (39°F) and an average of 15°C (60°F), peaking at 33°C (91°F). Precipitation decreases to 55 mm (2.2 in) over 9 days, and humidity is slightly lower at 82%. For a more detailed look at the weather patterns in this month, you can visit Brussels weather in September.
In March, temperatures in Brussels range from a chilly minimum of -8°C (17°F) to an average of 7°C (45°F), peaking at a comfortable 23°C (74°F). The month experiences about 70 mm (2.8 in) of precipitation over 14 days, with humidity levels at 87%. In contrast, October sees milder conditions with minimum temperatures around 1°C (34°F) and an average of 12°C (54°F), reaching a maximum of 25°C (77°F). The month registers slightly higher precipitation at 76 mm (3.0 in) across 13 days, with humidity increasing to 89%. For more in-depth insights, you can check Brussels weather in October.
In comparing the weather between March and November, both months exhibit an average temperature of around 7°C (45°F), but the specific temperature ranges differ significantly. March can experience a wider temperature variation, with minimums plummeting to -8°C (17°F) and maximums reaching 23°C (74°F), while November’s temperatures are milder, ranging from a minimum of -2°C (28°F) to a maximum of 18°C (65°F). Precipitation levels are slightly higher in March, totaling 70 mm (2.8 in) over 14 days, compared to November's 57 mm (2.2 in) over 11 days. Furthermore, humidity is generally higher in November at 92% versus 87% in March. For more detailed insights, you can visit Brussels weather in November.
March and December in Brussels present contrasting weather patterns. In March, temperatures range from a chilly minimum of -8°C (17°F) to a pleasant maximum of 23°C (74°F), averaging around 7°C (45°F). The month experiences about 70 mm (2.8 in) of precipitation over 14 days, with humidity levels averaging 87%. In contrast, December sees slightly milder temperatures, with a minimum of -5°C (24°F) and a maximum of 15°C (59°F), giving an average of 5°C (42°F). This month is wetter, recording approximately 93 mm (3.7 in) of precipitation across 17 days, and slightly higher humidity at 92%. For more detailed information on December weather, check out Brussels weather in December.
As March rolls into Brussels, the city's weather becomes a tale of transition. This month offers a noticeable shift from the biting chill of winter to the promising warmth of spring, with temperatures fluctuating significantly. While average conditions linger around a crisp 7°C, residents can enjoy the occasional rise to a pleasant 23°C, a welcome contrast to the colder months. However, March is also marked by increased precipitation, with many days bringing rain, contributing to a high humidity level of 87%. This blend of warmth and wetness sets the stage for the vibrant renewal of spring. To learn more about the yearly climate variations, visit Brussels Climate.