Last updated: August 21, 2025
April in Waterloo, Belgium signals the arrival of spring, showcasing a remarkable temperature range from a brisk -4°C (26°F) at night to a warm 27°C (81°F) during the day. With an average temperature of 10°C (50°F), residents and visitors can expect significant variation in their daily experiences. While this month sees 36 mm (1.4 in) of precipitation spread over 8 days, the humidity can climb to a notable 85%, creating a refreshing yet occasionally damp atmosphere. Embrace the charm of Waterloo in April, where the milder climate breathes life into the vibrant surroundings.
In April, Waterloo, Belgium, experiences a remarkable shift towards warmth as the chill of winter fades away. The minimum temperature hovers around -4°C (26°F), providing a gentle start to the month. By midday, the average temperature climbs to a comfortable 10°C (50°F), allowing residents and visitors alike to enjoy the blossoming spring scenery. The peaks of the month can reach a delightful 27°C (81°F), which marks a significant jump from the lower temperatures of the preceding months. This trend showcases how April acts as a bridge between winter's cold grasp and the vibrant warmth of spring, inviting outdoor activities and blooming landscapes that make Waterloo a charming destination.
April in Waterloo, Belgium, brings a refreshing change in precipitation patterns, with only 36 mm (1.4 in) of rain falling over 8 days. This marked decrease from the preceding months—particularly the heavier rains seen in January (65 mm) through March (71 mm)—highlights a transition into the drier spring season. While March frequently greets residents with rain on 14 days, April's lighter showers offer a brief respite, paving the way for the May blooms ahead. As temperatures rise and the days grow longer, the shift in rainfall not only brightens the atmosphere but also sets the stage for the lush foliage that characterizes the region's summer months.
In April, Waterloo, Belgium, experiences a shift in humidity, dropping to 85%, a noticeable decrease from the colder months' averages of around 91% in January and 89% in February. This trend reflects the gradual transition toward spring, as humidity levels continue to decline through May and June, reaching 82% by May. The warmer months bring drier air, with July and August offering even lower humidity levels of 80% and 76%, respectively. This pattern illustrates a seasonal ebb and flow, where the humid embrace of winter slowly gives way to the crisp, invigorating air of spring and summer.
In April, Waterloo, Belgium experiences a moderate UV Index of 5, signaling an important shift as the region transitions into spring. This increase from the previous months' lower levels indicates that sun protection becomes essential, with a burn time of just 30 minutes for fair-skinned individuals. As nature comes back to life, it's prudent for residents and visitors to be mindful of the sun's intensity and take steps to safeguard their skin, particularly as the UV Index is likely to continue rising in the coming months. For more detailed information and updates, check out the Waterloo UV Index.
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April in Waterloo, Belgium, typically basks in a glow of 346 hours of sunshine, marking a delightful transition into spring. This month not only showcases a significant leap from 266 hours in March but also sets the stage for even brighter days ahead, as May boasts an impressive 394 hours. The steady rise in sunshine from the beginning of the year—starting at a modest 121 hours in January—highlights a joyful shift in weather, inviting residents and visitors alike to embrace outdoor activities. As the days grow longer and warmer, April acts as the perfect bridge, beckoning the vibrant blooms and lush landscapes that flourish in the months that follow.
As we transition into April in Waterloo, Belgium, the likelihood of sunny weather jumps significantly to 49%, marking a noticeable increase from the cooler months. This shift highlights a trend of gradually improving sunshine opportunities as spring unfolds, with March already providing a hint of brighter days at 39%. April's sunnier disposition is a refreshing change after the gloomy winter months of January, which registers a mere 10% chance of sun. After April, however, the chance of sun sees a decline in May to 33% and continues to hover around that figure through the summer, indicating that while April brings a promise of sunny skies, the subsequent months may not match its brightness.
As spring unfolds in Waterloo, Belgium, April marks a significant increase in daylight, with residents enjoying an impressive 13 hours of sunlight—a notable jump from the 11 hours in March. This transition heralds the arrival of longer, brighter days that culminate in the summer months. Following the upward trend, May offers even more sunlight at 15 hours, while June peaks with 16 hours, presenting opportunities for outdoor activities and enjoying nature. As the year progresses, daylight gradually recedes, dipping back to 10 hours in October and returning to 8 hours during the winter months. This rhythmic cycle of light not only enhances the beauty of spring but also influences the lifestyle and mood of the community in Waterloo.
In April, Waterloo, Belgium, experiences a gentle shift in wind patterns, with an average speed of 3.4 m/s (8 mph). This marks a noticeable decrease compared to the preceding months of January through March, which boast more vigorous winds averaging around 4.1 to 4.6 m/s. As spring unfolds, the breezes become softer, providing a refreshing yet mild touch to the budding landscape. This calming trend continues into the summer months, where winds remain gentle, averaging around 3.4 m/s in both July and August. Interestingly, April's lower wind speed hints at a transition, setting the stage for the warmer days ahead, where the gentle breezes of spring invite outdoor exploration and enjoyment of the blossoming scenery.
Weather in Waterloo varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Waterloo, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of April and January, April tends to be milder with average temperatures around 10°C (50°F), while January remains colder with an average of only 4°C (39°F). The maximum temperature in April can reach up to 27°C (81°F), significantly warmer than January's peak of 14°C (57°F). Despite April being generally more pleasant, it still experiences some rain with about 36 mm (1.4 in) over 8 days, whereas January sees a higher precipitation level of 65 mm (2.6 in) spread across 12 days. Additionally, humidity levels are slightly lower in April at 85%, compared to January's 91%. For more detailed information, you can visit Waterloo weather in January.
In comparing the weather between February and April, April tends to be significantly milder. The average temperature in April is around 10°C (50°F), a noticeable increase from February's average of 5°C (42°F). While both months experience chilly temperatures, with February dipping as low as -9°C (17°F) and April reaching a minimum of -4°C (26°F), April sees a higher maximum temperature of 27°C (81°F) compared to February's peak of 19°C (66°F). Precipitation levels are also notably different, with February receiving 70 mm (2.7 in) across 12 days, while April drops to 36 mm (1.4 in) over 8 days. Despite the wetter February, both months share similarly high humidity levels, with February at 89% and April slightly lower at 85%. For more details on February weather, you can visit Waterloo weather in February.
April generally offers a more varied temperature range compared to March, with a minimum of -4°C and a maximum reaching 27°C, leading to an average temperature of 10°C. In contrast, March experiences colder nights, with a minimum temperature of -9°C and a maximum of 23°C, averaging at 7°C. Precipitation levels are notably higher in March at 71 mm over 14 days, while April sees a reduction with 36 mm of rain across 8 days. Additionally, humidity levels remain high in both months, but March has slightly higher humidity at 87% compared to April's 85%. For a detailed comparison of weather conditions, you can check Waterloo weather in March.
In comparing the weather of April and May, April tends to have cooler temperatures, with a minimum of -4°C (26°F) and an average of 10°C (50°F), while May sees milder conditions with a minimum of 0°C (33°F) and an average of 13°C (57°F). The maximum temperatures also rise in May, reaching up to 31°C (87°F) compared to April's peak of 27°C (81°F). However, May experiences greater precipitation, totaling 60 mm (2.4 in) over 13 days, compared to April's 36 mm (1.4 in) over 8 days, and slightly lower humidity levels at 82% versus April's 85%. For more detailed insights, check out the following link: Waterloo weather in May.
Comparing the weather between April and June reveals a notable transition from the coolness of early spring to the warmth of early summer. In April, temperatures range from a chilly minimum of -4°C (26°F) to a comfortable maximum of 27°C (81°F), with an average of 10°C (50°F) and fairly high humidity at 85%. Precipitation occurs over 8 days, totaling 36 mm (1.4 in). By June, temperatures rise significantly, with minimums of 7°C (45°F), averages of 18°C (65°F), and maximums reaching up to 33°C (91°F). This month also sees increased rainfall, with 72 mm (2.8 in) spread across 11 days, and humidity slightly decreased at 82%. For more detailed insights, you can visit Waterloo weather in June.
April and July present contrasting weather patterns. In April, temperatures can range from a chilly -4°C (26°F) at their lowest to a mild average of 10°C (50°F), peaking at a maximum of 27°C (81°F). This month experiences about 36 mm (1.4 in) of precipitation over 8 days, with a high humidity level of 85%. In comparison, July brings warmer conditions, with temperatures starting at a minimum of 8°C (46°F) and averaging around 19°C (66°F), reaching maximums of 39°C (102°F). Rainfall increases in July to 74 mm (2.9 in) over 11 days, while humidity slightly decreases to 80%. For more details on July's weather, you can visit Waterloo weather in July.
April and August showcase distinctly different weather patterns. In April, temperatures range from a minimum of -4°C (26°F) to a maximum of 27°C (81°F), with an average of 10°C (50°F). The month sees about 36 mm (1.4 in) of precipitation over 8 days, accompanied by high humidity levels at 85%. In contrast, August features warmer temperatures, with a minimum of 7°C (46°F) and a maximum soaring to 36°C (97°F), averaging 19°C (66°F). This month experiences significantly more rainfall, totaling 84 mm (3.3 in) across 14 days, while the humidity drops to 76%. For a more detailed look at what to expect, visit Waterloo weather in August.
April and September showcase distinct weather patterns. In April, temperatures can dip as low as -4°C (26°F) and rise to a pleasant average of 10°C (50°F), with highs reaching up to 27°C (81°F). The month sees about 36 mm (1.4 in) of precipitation over approximately 8 days, accompanied by relatively high humidity at 85%. Conversely, September offers a warmer climate, with minimum temperatures starting at 4°C (39°F) and comfortable averages around 15°C (60°F), climbing to a maximum of 33°C (91°F). This month experiences slightly more rainfall, totaling 58 mm (2.3 in) over 10 days, while humidity remains relatively low at 82%. For more detailed information, check out Waterloo weather in September.
In comparing the weather of April and October, we see a notable shift in temperatures and precipitation patterns. April experiences a broader temperature range, with minimums dipping to -4°C (26°F) and maximums reaching up to 27°C (81°F), while October’s temperatures are milder, with minimums around 1°C (35°F) and a maximum of 25°C (77°F). However, October witnesses higher precipitation levels, with an average of 78 mm (3.1 in) over 13 days compared to April's 36 mm (1.4 in) over 8 days. Additionally, October's humidity increases slightly to 89%, in contrast to April's 85%, making it feel a bit more damp. For more detailed insights on October weather, you can check out Waterloo weather in October.
April and November present contrasting weather patterns, both in temperature and precipitation. In April, temperatures range from a minimum of -4°C (26°F) to a pleasant maximum of 27°C (81°F), with an average temperature of around 10°C (50°F). This month typically experiences about 36 mm (1.4 in) of precipitation over 8 days, alongside a humidity level of 85%. In contrast, November sees a more muted temperature range, with a minimum of -3°C (28°F), an average of 7°C (45°F), and a maximum of 18°C (65°F). It tends to be wetter, with approximately 57 mm (2.3 in) of rainfall spread over 11 days and higher humidity at 92%. For a more detailed look at the specific weather conditions during this month, visit Waterloo weather in November.
April and December present contrasting weather conditions. In April, temperatures can range from a chilly -4°C (26°F) to a pleasant max of 27°C (81°F), with an average of 10°C (50°F). This month experiences about 36 mm (1.4 in) of precipitation over approximately 8 days, accompanied by a humidity level of 85%. In contrast, December typically sees cooler temperatures, with a minimum of -4°C (24°F), an average of 5°C (42°F), and a maximum of 15°C (59°F). The month is much wetter, with precipitation reaching 92 mm (3.6 in) over 17 days, alongside higher humidity at 92%. For more details about December weather in Waterloo, visit Waterloo weather in December.
April in Waterloo marks a notable transition from the chill of winter to the warmth of spring, with temperatures beginning to rise and infusing the atmosphere with a sense of renewal. Unlike the cold grip of previous months, this time of year sees a maximum reach of 27°C, complementing the mild average of 10°C. However, the lingering effects of winter are still felt, as minimum temperatures can dip to around -4°C, reminding us that spring is still finding its footing. With 36 mm of precipitation spread over 8 days, April balances sunny spells with occasional showers, contributing to the invigorating 85% humidity that breathes life into blossoming landscapes. Discover more about the unique characteristics of Waterloo's climate by visiting Waterloo Climate.