Last updated: August 27, 2025
April in Rotterdam brings a refreshing transition from winter chill to spring warmth. With maximum temperatures soaring to 27°C (81°F), the city experiences an average of 10°C (50°F), while even colder spells can drop to a minimum of -1°C (30°F). The month is characterized by 85% humidity, creating a lively atmosphere. Nevertheless, residents can expect some rain, with 44 mm (1.7 in) of precipitation spread over 9 days. This mix of sunshine and showers makes April a dynamic time to explore Rotterdam's vibrant streets and parks, as nature awakens from its slumber.
In April, Rotterdam experiences a notable transition as winter gives way to spring, with temperatures steadily warming. The month begins with chilly minimums around -1°C (30°F), but soon the average climbs to a comfortable 10°C (50°F). As the days progress, the city enjoys higher maximum temperatures, peaking at an impressive 27°C (81°F), showcasing the vibrant shift in climate. This dramatic increase signifies not only the end of frosty nights but also hints at the warmer months ahead, making April a delightful time to explore the blossoming scenery and outdoor attractions of this dynamic Dutch city.
April in Rotterdam experiences a notable dip in precipitation, with an average of 44 mm (1.7 in) spread over just 9 days, making it one of the dryer months of the year. This is a significant decrease compared to the preceding months, where rainfall gradually increased through January to March. Despite April's lighter showers, the city’s overall wet pattern persists, as it transitions into the rainier late spring and summer months, with May's precipitation climbing back to 65 mm (2.5 in). This trend highlights how April serves as a brief intermission before the usual increase in rainfall that continues through the summer, providing a mix of refreshing breezes and blooming spring landscapes for residents and visitors alike.
In April, Rotterdam experiences a humidity level of 85%, marking a gradual decline from the higher humidity of the winter months. This slight decrease reflects a continuing trend that begins in January, where humidity peaks at 91%. As spring unfolds, the weather becomes milder, and by May, humidity dips further to 82%, indicating a transition into the drier summer season. The overall pattern showcases a comforting shift from the damp chill of early winter to the more refreshing, temperate climate of late spring, making April a delightful time to enjoy the city's blooming landscapes.
April marks an intriguing shift in Rotterdam's UV Index, rising to 5 and landing in the moderate exposure category. This change signals a more careful approach to sun exposure, as the burn time decreases to just 30 minutes. As spring unfolds, residents and visitors alike should be more mindful of sun protection, especially with the upcoming months bringing even higher indices. It's a reminder that as the days lengthen and temperatures warm, UV radiation intensifies. Staying informed about these trends is crucial for outdoor activities, and you can find more details at Rotterdam UV Index.
UV Risk Categories
As spring unfolds in Rotterdam, April shines brightest with an impressive 363 hours of sunshine, marking a clear transition from the gloom of winter. The city experiences a noticeable surge in daylight, with sunlight increasing significantly from 282 hours in March. This trend continues as the days grow longer into May, where sunshine peaks at 411 hours, showcasing the vibrant energy of the season. With each passing month, the gradual rise in sunshine illuminates the charm of Rotterdam, inviting residents and visitors alike to bask in the warmth and beauty of the city.
As spring unfolds in Rotterdam, April marks a significant transition in sunny weather, boasting a 40% chance of sunshine. This increase stands out as a notable uplift compared to the preceding months, with February and March only seeing 28% and 36% chances, respectively. Despite the potential for sun, May slightly dips to 32%, indicating that April might be one of the best bets for enjoying those bright, sunny days. As winter's grayness recedes, April invites a refreshing promise of sunshine, making it an ideal time to soak in the growing warmth and vibrancy of the city.
As spring unfolds in Rotterdam, the increase in daylight becomes unmistakable. In April, residents enjoy 13 hours of sunlight, marking a significant leap from 11 hours in March. This upward trend continues into May and June, where daylight stretches to an impressive 15 and 16 hours respectively, inviting longer days filled with vibrant outdoor activities. As summer wanes into August, daylight begins to taper off, settling at 14 hours, before gradually decreasing again in the fall months. This natural rhythm showcases the delightful transition from the shorter, darker days of winter to the bright, sun-soaked months of spring and summer, highlighting how Rotterdam basks in an ever-increasing embrace of light as the year progresses.
As April sweeps into Rotterdam, the city experiences a gentle shift in its average wind speed, dropping to 4.2 m/s (9 mph), the lowest recorded since January. This decrease marks a transitional phase as spring fully unfurls, following closely behind a consistent trend of slightly stronger winds in the earlier months of the year. Interestingly, while the winds are softer than in the winter and early spring, they still create a refreshing atmosphere ideal for outdoor activities. As we look ahead to May, a slight uptick to 4.4 m/s is anticipated, hinting at the playful breezes that characterize the late spring months. Overall, April’s winds serve as a reminder of nature's rhythm, making way for warmer days and vibrant blooms across Rotterdam.
Weather in Rotterdam varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Rotterdam, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January offer distinctly different weather experiences. In April, temperatures range from a chilly -1°C (30°F) at night to a pleasant 27°C (81°F) during the day, with an average of 10°C (50°F). This month sees about 44 mm (1.7 in) of precipitation over 9 days and a humidity level of 85%. In contrast, January is much colder, with temperatures dipping as low as -8°C (19°F) and averaging around 5°C (41°F), peaking at 14°C (58°F). The month receives more precipitation, totaling 57 mm (2.3 in) across 12 days, coupled with a slightly higher humidity of 91%. For a more detailed look at weather conditions in January, you can refer to Rotterdam weather in January.
April weather typically showcases a significant warming trend compared to February. In April, temperatures range from a chilly minimum of -1°C (30°F) to a pleasant maximum of 27°C (81°F), with an average of 10°C (50°F). In contrast, February is much colder, with temperatures ranging from -9°C (15°F) to a maximum of 18°C (65°F) and an average of only 5°C (42°F). Additionally, April experiences less precipitation, with 44 mm (1.7 in) over 9 days, while February sees more rainfall, accumulating 65 mm (2.6 in) over 12 days. Humidity remains high in both months, but it is slightly higher in February at 89% compared to April's 85%. For more details on February weather, you can visit Rotterdam weather in February.
When comparing the weather in April and March, April tends to be milder with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 27°C (81°F) and an average of 10°C (50°F). In contrast, March experiences colder temperatures, with a minimum of -8°C (18°F), an average of 7°C (45°F), and a maximum of 21°C (71°F). While April sees less precipitation at 44 mm (1.7 in) over 9 days, March has more rainfall, totaling 69 mm (2.7 in) over 14 days. Additionally, humidity levels are slightly higher in March at 87% compared to April's 85%. For further details, you can check Rotterdam weather in March.
April and May present a noticeable transition in weather patterns. In April, temperatures range from a chilly -1°C (30°F) to a mild 27°C (81°F), with an average of 10°C (50°F). The month experiences around 44 mm (1.7 in) of precipitation over nine days, coupled with high humidity at 85%. In contrast, May brings slightly warmer temperatures, starting at a minimum of 1°C (35°F) and peaking at 31°C (87°F), with an average of 13°C (56°F). However, May also sees increased precipitation, amounting to 65 mm (2.5 in) across 12 rainy days, while humidity remains relatively lower at 82%. For more details, you can check Rotterdam weather in May.
April weather presents a cooler picture compared to June, with temperatures ranging from a chilly minimum of -1°C (30°F) to a mild maximum of 27°C (81°F) and an average of 10°C (50°F). In April, the precipitation totals around 44 mm (1.7 in) over approximately 9 days, coupled with relatively high humidity at 85%. In contrast, June warms up significantly, offering a minimum temperature of 7°C (45°F), an average of 17°C (63°F), and a maximum reaching 32°C (89°F). June also sees a slight increase in rainfall, with a total of 72 mm (2.8 in) spread over 10 days, and humidity levels drop slightly to 82%. For more detailed insights on June weather, check out Rotterdam weather in June.
April and July present a stark contrast in weather conditions. In April, temperatures range from a chilly minimum of -1°C (30°F) to a comfortable average of 10°C (50°F), peaking at 27°C (81°F). The month experiences a fair amount of precipitation, with around 44 mm (1.7 in) of rain falling over nine days, contributing to a high humidity level of 85%.
In contrast, July boasts significantly warmer temperatures, with a minimum of 8°C (47°F) and an average of 18°C (65°F), soaring to a maximum of 38°C (101°F). This month encounters even more rainfall, totaling 68 mm (2.7 in) across 13 days, while humidity remains slightly lower at 80%. For more detailed information on July weather, check out Rotterdam weather in July.
In April, temperatures range from a chilly minimum of -1°C (30°F) to a pleasant average of 10°C (50°F), peaking at 27°C (81°F). The month sees around 44 mm (1.7 in) of rainfall over about 9 days, accompanied by high humidity levels averaging 85%. In contrast, August offers a warmer climate with minimum temperatures of 8°C (48°F) and an average temperature of 18°C (65°F), reaching as high as 33°C (93°F). However, it's also rainier, with 84 mm (3.3 in) of precipitation across 14 days and a lower humidity level of 76%. For more details, check Rotterdam weather in August.
April and September present distinctly different weather patterns. In April, temperatures range from a chilly minimum of -1°C (30°F) to a pleasant maximum of 27°C (81°F), with an average of 10°C (50°F). The month experiences about 44 mm (1.7 in) of precipitation over 9 days, combined with a relatively high humidity of 85%. In contrast, September brings milder conditions, with temperatures starting at a minimum of 4°C (40°F), averaging 15°C (60°F), and peaking at 31°C (87°F). This month sees increased precipitation, totaling 75 mm (3.0 in) over 11 days, and a slightly lower humidity of 82%. For a more detailed look at September weather, check out Rotterdam weather in September.
April and October present distinct weather patterns, each with its own charm. In April, temperatures can dip as low as -1°C (30°F), but typically average around 10°C (50°F) and can reach a maximum of 27°C (81°F). The month is relatively mild with 44 mm (1.7 in) of precipitation occurring over about 9 days, and it boasts a humidity level of 85%. In contrast, October sees slightly warmer minimum temperatures at 2°C (36°F) and an average temperature of 12°C (55°F), peaking at around 25°C (78°F). However, this month is marked by higher rainfall, totaling 92 mm (3.6 in) over 16 days, along with a similar humidity level of 89%. For a closer look at October's unique weather elements, you can check out Rotterdam weather in October.
April and November present distinctly different weather experiences. In April, temperatures range from a chilly -1°C (30°F) to a warm 27°C (81°F), with an average of 10°C (50°F). The month typically sees about 44 mm (1.7 in) of precipitation spread over 9 days, while humidity levels hover around 85%. In contrast, November is cooler with temperatures ranging from -2°C (29°F) to a maximum of 18°C (65°F) and an average of 8°C (46°F). The month is wetter, with approximately 56 mm (2.2 in) of precipitation over 12 days and higher humidity at 92%. For a more detailed look at rainfall and conditions, check out Rotterdam weather in November.
April and December exhibit distinctly different weather patterns. In April, temperatures range from a minimum of -1°C (30°F) to a comfortable average of 10°C (50°F), peaking at a high of 27°C (81°F). The month sees about 44 mm (1.7 in) of precipitation spread over 9 days, accompanied by relatively high humidity at 85%. In contrast, December experiences colder conditions, with temperatures ranging from a minimum of -4°C (25°F) to an average of 6°C (43°F), reaching a maximum of only 14°C (57°F). This month is significantly wetter, with precipitation totaling 90 mm (3.5 in) over 17 days, and a higher humidity at 92%. For a closer look at December's conditions, you can visit Rotterdam weather in December.
April in Rotterdam stands out as a month of transformation, with temperatures gradually warming up after the chill of winter. As the city shakes off the frost, average daily highs reach a comfortable 27°C, while nighttime lows dip to around 10°C. This shift is accompanied by increased humidity, which can make the air feel quite damp, emphasizing the frequent rain expected during this period—over nine days of precipitation contribute to an average of 44 mm for the month. Unlike the colder, wetter months preceding it, April offers a refreshing glimpse of spring, albeit with a few rainy days that remind us of the unpredictable Dutch climate. To dive deeper into the nuances of Rotterdam's weather throughout the year, check out Rotterdam Climate.