April Weather in Grimbergen, Belgium

Last updated: August 21, 2025

In Grimbergen, Belgium, April ushers in a mix of mild to warm temperatures, with a maximum reaching 27°C (81°F) and an average of 10°C (51°F). Nights can be quite chilly, dipping down to a minimum of -3°C (26°F). Rainfall is moderate, totaling 38 mm (1.5 in) over 8 days, contributing to the region's lush greenery. With humidity levels averaging around 85%, the air can feel quite heavy, adding to the vibrant yet unpredictable charm of early spring in Grimbergen.

April Temperature in Grimbergen

April in Grimbergen, Belgium, marks a noticeable transition toward warmer weather as winter recedes. With minimum temperatures hovering around -3°C (26°F) and average highs reaching a comfortable 27°C (81°F), this month heralds the arrival of spring. The substantial leap from March's maximum of 23°C (73°F) showcases a significant warming trend, enticing residents and visitors alike to revel in the blossoming landscape. As the month progresses, the inviting climate encourages outdoor activities and exploration, making April a delightful time to experience the scenic beauty of Grimbergen. With temperatures steadily rising, it's clear that spring is in full swing, promising a vibrant month ahead.

April Weather in Grimbergen: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Grimbergen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grimbergen, April 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).
JanFebMarAprMayJunJulAugSepOctNovDec404245505765666660554642
Data source: Temperature data for Grimbergen generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Grimbergen

April in Grimbergen, Belgium, brings a noticeable dip in precipitation, with only 38 mm (1.5 in) recorded over 8 rainy days. This decrease follows a steady upward trend from the beginning of the year, where January began with 62 mm and steadily climbed to 69 mm in March. As spring takes hold, the lighter showers of April pave the way for a more pleasant May, which sees precipitation increase again to 58 mm. The patterns suggest a transitional phase, where the city sheds the heavier rains of winter and welcomes the softer, rejuvenating rains of spring, setting the stage for the vibrant growth of the coming months.

April Precipitation Trends in Grimbergen

The chart displays monthly precipitation patterns in Grimbergen, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Grimbergen, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec626769385863677351795389
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Grimbergen

In April, Grimbergen, Belgium, experiences a noticeable shift in humidity levels as they drop to 85%, reflecting the gradual transition from the damp chill of winter to the more temperate spring. This decline continues the pattern established over the previous months, where humidity rates have consistently decreased since January, when they peaked at a substantial 91%. As the days grow longer and warmer, April's lower humidity hints at the approaching summer months, promising drier conditions that will continue, reaching 82% in May and persisting through June. The overall trend indicates a refreshing respite from the heavier air experienced in the colder months, fostering a more comfortable environment just as the blossoming season unfolds.

April Average Humidity in Grimbergen

This chart illustrates the average monthly humidity levels in Grimbergen, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Grimbergen is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%85%82%82%80%76%82%89%92%92%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Grimbergen

As we step into April in Grimbergen, Belgium, the UV Index rises to 5, indicating a moderate exposure level that requires some caution. This month, the burn time decreases to 30 minutes, reflecting the strengthening sun's intensity compared to earlier months. Following a gradual increase since January, where the index started at a low 1, April marks a noticeable transition towards more intense sun exposure, setting the stage for May's even higher levels. With the onset of spring, it's essential to remain mindful of UV protection, especially as we anticipate the upcoming summer months. For more details, check out the Grimbergen UV Index.

Maximum UV Index Levels in Grimbergen for April

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

April Sunshine in Grimbergen

As April unfolds in Grimbergen, Belgium, the days grow noticeably brighter, culminating in an impressive 348 hours of sunshine—an inviting contrast to the dreary winter months. This steady increase in daylight hours marks a shift from the 120 hours of January, progressively climbing through the spring months. Following the promising gains in March, April’s sunshine not only signals warmer weather ahead but also lays the groundwork for the splendid brightness of May, which boasts 397 hours. The trend is clear: each passing month welcomes more sunlight, transforming Grimbergen from the chill of winter's grasp to the vibrant embrace of spring, creating an alluring atmosphere for revelry and rejuvenation beneath the sun.

Monthly Sunshine Duration in Grimbergen: April Highlighted

The April sunshine duration represents the total number of hours Grimbergen experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec120h203h272h348h397h400h411h383h320h241h191h143h
Data source: Grimbergen April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Grimbergen During April

As spring unfolds in Grimbergen, Belgium, April emerges as a beacon of brighter days, boasting a 48% chance of sunny weather—the highest rate for the month compared to the colder winter months and early spring. This gradual increase from the 11% in January to 39% in March highlights a significant trend: the days are getting longer and sunnier as winter recedes. In fact, while May sees a slight dip to 33%, April's promise of sunshine invites outdoor activities and a revival of nature, setting a perfect stage for blooming flowers and vibrant landscapes. As April rolls in, residents and visitors alike can relish the warming sun, suggesting that this month serves as a delightful transition into the sunnier days of summer ahead.

Percentage of Sunny Days in April in Grimbergen

The chart illustrates the percentage of sunny days in Grimbergen throughout the year, with April 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 Grimbergen experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec11%31%39%48%33%34%34%30%34%30%23%16%
Data source: Grimbergen April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Grimbergen in April

In Grimbergen, Belgium, the month of April heralds a delightful increase in daylight duration, stretching to 13 hours—a clear signal that spring is firmly underway. This burgeoning light feels like a breath of fresh air after the shorter days of winter, which hover around 8 hours in January and November. As we transition from March's 11 hours to April's vibrant stretch of daylight, the promise of longer, sunnier days invigorates nature and communities alike. Following April, May continues this upward trend, offering even more sunshine with 15 hours of daylight, while June peaks at an impressive 16 hours. This gradual increase not only marks a shift in the seasons but also invites longer outdoor activities, fostering a sense of renewal and connection to the environment.

Average Daylight Hours in Grimbergen for April

The chart illustrates the variation in daylight duration in Grimbergen throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 28m10h11h 55m13h 52m15h 34m16h 27m15h 59m14h 27m12h 34m10h 38m8h 54m7h 58m
Data source: Grimbergen daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Grimbergen

In April, the winds in Grimbergen begin to mellow, with an average speed of 3.4 m/s (8 mph). Compared to the spring months, April’s breezes are notably lighter than March's 3.9 m/s, hinting at a transition toward warmer days. This gentle wind sets a serene backdrop, offering a refreshing respite as nature awakens from its winter slumber. As we move into May, the winds pick up slightly again to 4.2 m/s, but April’s softer gusts create an inviting atmosphere perfect for outdoor activities and leisurely strolls. Overall, the April breeze is a delightful harbinger of spring, providing just the right touch of freshness without overwhelming the senses.

Average April Wind Speed in Grimbergen

The chart displays monthly wind speed patterns in Grimbergen, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.34.43.93.4 m/s4.22.83.23.33.04.23.24.0
Data source: Grimbergen April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Grimbergen Compares to Other Months

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

In comparing the weather between April and January, we can see notable differences in temperature and precipitation. April experiences milder conditions, with average temperatures ranging from a minimum of -3°C (26°F) to a maximum of 27°C (81°F), while January typically sees colder temperatures, averaging between -6°C (21°F) and 14°C (58°F). Precipitation is also lower in April, with only 38 mm (1.5 in) falling over 8 days, compared to January's 62 mm (2.4 in) over 12 days. Additionally, humidity levels are slightly higher in January at 91%, compared to April's 85%. For more detailed insights on January weather, visit Grimbergen weather in January.

April weather offers a noticeable warming trend compared to February. While February sees minimum temperatures plummet to -12°C (11°F), April's lows only dip to -3°C (26°F). The average temperature in April rises significantly to 10°C (51°F), compared to February's average of 6°C (42°F). Additionally, April can reach a maximum of 27°C (81°F), providing a stark contrast to February's peak of 19°C (66°F). Although April experiences slightly less precipitation at 38 mm (1.5 in) over 8 days compared to February's 67 mm (2.6 in) over 12 days, the humidity remains high in both months, with April at 85% and February at 89%. For more details on February weather, you can visit Grimbergen weather in February.

April generally presents milder weather compared to March, with average temperatures rising from 7°C (46°F) in March to 10°C (51°F) in April. While both months experience a range of temperatures, April can reach a maximum of 27°C (81°F), significantly warmer than March's maximum of 23°C (73°F). Additionally, March sees higher precipitation levels at 69 mm (2.7 in) over 14 days, compared to April's 38 mm (1.5 in) over just 8 days. Humidity remains quite similar, with April at 85% and March slightly higher at 87%. For a detailed look at March weather patterns, you can visit Grimbergen weather in March.

April and May exhibit notable differences in weather patterns. In April, temperatures range from a chilly minimum of -3°C (26°F) to a more pleasant average of 10°C (51°F), peaking at a maximum of 27°C (81°F). The month sees a total of 38 mm (1.5 in) of precipitation over 8 days, accompanied by high humidity levels of 85%. In contrast, May experiences a milder temperature with a minimum of 1°C (35°F) and an average of 14°C (57°F), reaching up to 31°C (88°F). However, precipitation rises to 58 mm (2.3 in) across 12 days, with humidity slightly lower at 82%. For a closer look at the weather in May, you can check Grimbergen weather in May.

April's weather features a wide temperature range, with minimums dipping to -3°C (26°F) and maximums reaching 27°C (81°F), providing an average of 10°C (51°F). In contrast, June offers a significantly warmer climate, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 32°C (91°F), resulting in a pleasant average of 18°C (65°F). April experiences 38 mm (1.5 in) of precipitation over about 8 days, while June has relatively higher rainfall at 63 mm (2.5 in) across 9 days, though humidity levels remain similar at 85% for April and 82% for June. For more detailed information, you can check the Grimbergen weather in June.

April and July present contrasting weather patterns that reflect the transition from spring to summer. In April, temperatures range from a chilly minimum of -3°C (26°F) to a pleasant average of 10°C (51°F), peaking at a maximum of 27°C (81°F). This month sees about 38 mm (1.5 in) of precipitation over 8 days, with humidity levels at a high 85%. In contrast, July experiences milder temperatures, with a minimum of 8°C (47°F), an average of 19°C (67°F), and a maximum soaring to 39°C (102°F). This summer month has more precipitation, totaling 67 mm (2.6 in) over 11 days, but slightly lower humidity at 80%. For a deeper dive into July weather specifics, check out Grimbergen weather in July.

April and August present notably different weather patterns. In April, temperatures can fluctuate significantly, ranging from a chilly minimum of -3°C (26°F) to a pleasant average of 10°C (51°F), with a peak reaching 27°C (81°F). The month experiences an average of 38 mm (1.5 in) of precipitation over approximately 8 days, coupled with high humidity levels of 85%. On the other hand, August features a more moderate climate, with minimum temperatures at 8°C (47°F) and an average of 19°C (66°F), peaking at a hot 35°C (96°F). This month sees increased rainfall, totaling 73 mm (2.9 in) across 14 days, and lower humidity at 76%. For a detailed overview of the weather, check out Grimbergen weather in August.

April and September offer distinct weather experiences, with notable differences in temperature and precipitation. In April, temperatures can drop to as low as -3°C (26°F) but may reach a pleasant average of 10°C (51°F), peaking at 27°C (81°F) on warmer days. The month sees around 38 mm (1.5 in) of precipitation over 8 days, accompanied by a high humidity level of 85%, creating a fresh, damp atmosphere.

Conversely, September tends to be milder, with minimum temperatures around 4°C (40°F) and average highs reaching 16°C (60°F), soaring up to a maximum of 33°C (91°F). This month experiences slightly more rainfall at 50 mm (2.0 in) across 9 days, but the humidity is a touch lower at 82%. For more detailed information about the weather during this month, you can check Grimbergen weather in September. Overall, while April ushers in spring's chill, September serves as a transition to autumn warmth, each offering unique weather patterns to enjoy.

April and October present distinct weather characteristics. In April, temperatures range from a chilly minimum of -3°C (26°F) to a comfortable average of 10°C (51°F), peaking at 27°C (81°F), with a total precipitation of 38 mm (1.5 in) spread across about 8 days. The humidity tends to be quite high at 85%. Conversely, October has slightly warmer conditions, with minimum temperatures around 2°C (35°F) and an average of 13°C (55°F), reaching a maximum of 25°C (78°F). This month experiences significantly more rainfall, accumulating 79 mm (3.1 in) over 13 days, accompanied by an even higher humidity level of 89%. For those interested in a detailed overview, you can check the Grimbergen weather in October.

Comparing the weather in April and November reveals some interesting contrasts. In April, temperatures range from a chilly -3°C (26°F) to a warm 27°C (81°F), with an average of 10°C (51°F). The month experiences around 38 mm (1.5 in) of precipitation over approximately 8 days, accompanied by a relatively high humidity level of 85%. In contrast, November sees slightly milder temperatures, with a minimum of -2°C (28°F) and a maximum of 19°C (66°F), averaging 8°C (46°F). This month also brings more rain, totaling 53 mm (2.1 in) over about 11 days, and humidity increases to 92%. For more specific details, you can check out Grimbergen weather in November.

April and December showcase distinctly different weather patterns. In April, temperatures range from a chilly min of -3°C (26°F) to a pleasant max of 27°C (81°F), with an average of 10°C (51°F). The month sees around 38 mm (1.5 in) of precipitation over 8 days and experiences 85% humidity. In contrast, December brings colder temperatures, with a minimum of -4°C (24°F) and a maximum of 15°C (59°F), resulting in an average of 6°C (43°F). This month is wetter, with 89 mm (3.5 in) of precipitation spread across 16 days and a higher humidity level of 92%. For more detailed insights into December weather, you can visit Grimbergen weather in December.

Compare Grimbergen's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Grimbergen

April in Grimbergen is a month of transition, where the chill of winter begins to wane and the promise of spring emerges. With temperatures fluctuating from crisp mornings to pleasantly warm afternoons, this month stands out as a time of rejuvenation and change. While precipitation is moderate, the high humidity serves as a reminder that spring showers are a precursor to the blossoming beauty of the landscape. Unlike the frigid conditions of February or the heat of summer months, April offers a unique blend of refreshing coolness and budding warmth, making it an ideal time for outdoor exploration. For more detailed insights into the region's weather patterns, visit Grimbergen Climate.