Last updated: August 27, 2025
In July, Rotterdam experiences a diverse weather profile that sees maximum temperatures soar up to 38°C (101°F), providing plenty of summer heat. The average temperature rests comfortably at around 18°C (65°F), while nighttime lows can dip to a cool 8°C (47°F). Rainfall is frequent, with approximately 68 mm (2.7 in) of precipitation over 13 days, resulting in a relative humidity of around 80%. Despite the rain, the city thrives under the summer sun, making July a unique blend of warmth and refreshing showers in the heart of the Netherlands.
In July, Rotterdam experiences its warmest temperatures of the year, with minimums around 8°C (47°F) and averages peaking at 18°C (65°F). This month showcases the city's potential for heat, as temperatures can soar to a sizzling 38°C (101°F), making it a perfect time for outdoor activities and exploring the vibrant streets. After the gradually warming months of May and June, which set the stage with their rising averages, July confidently cements summer's arrival. As the city basks in the sunshine, it's no surprise that locals and tourists alike flock to enjoy the canals and parks, reflecting the inviting and lively spirit that characterizes Rotterdam in midsummer.
In July, Rotterdam experiences a mix of warmth and rainfall, with an average precipitation of 68 mm (2.7 in) spread over about 13 days. This creates a lush backdrop for summer activities, even as the rainfall provides a refreshing contrast to the heat. While the precipitation amount is slightly lower than June's 72 mm, it still plays a significant role in the city's vibrant summer landscape. As the month progresses into August, precipitation tends to increase, peaking at 84 mm (3.3 in), which suggests that while July offers a generally pleasant climate, the latter part of summer can get wetter. Overall, July in Rotterdam is characterized by its balance of sunshine and rain, indicative of the Netherlands' maritime climate.
In July, Rotterdam experiences a notable dip in humidity, dropping to 80%, the lowest of the year. This decline marks a shift from the persistently high levels seen in the colder months, where humidity hovers around 91% in January and 92% in December. As spring transitions to summer, humidity levels gradually decrease, reaching 82% in both May and June. While August sees a further reduction to 76%, July stands out as a pivotal month where residents finally enjoy a brief respite from the dampness characteristic of the Netherlands. This trend of lower humidity in the warmer months creates a welcome contrast, enhancing the summer experience before autumn ushers in more humid conditions again.
In July, Rotterdam experiences one of its peak UV Index readings, soaring to an impressive 8, which falls into the very high exposure category. This means that outdoor enthusiasts should be extra cautious as the burn time is a mere 15 minutes—a stark contrast to the more leisurely hours of safety seen in the colder months like January and February, where the UV Index hovers at only 1 or 2. The intense summer sun continues this trend from June, maintaining the same high levels of UV exposure, which significantly decreases to 7 in August. As you enjoy the sunny days of July, be sure to protect your skin and take advantage of the pleasant weather while being mindful of the sun's strength. For more detailed insights, visit the Rotterdam UV Index.
UV Risk Categories
In July, Rotterdam basks in the warmth of approximately 425 hours of sunshine, marking it as the sunniest month of the year. This period of radiant weather follows a gradual increase in daylight hours, starting from a modest 118 hours in January and steadily climbing to reach its peak in mid-summer. The month of July stands out not only for its vibrant sunshine but also for the consistent trend of increasing light that characterizes the first half of the year. Following July, although August still enjoys a generous 398 hours, a noticeable decline in sunshine begins as the days shorten, transitioning into the cooler months. Hence, July serves as a joyful highlight in Rotterdam's seasonal tapestry, where residents and visitors alike can fully embrace the brilliance of summer before the year's gradual fade into autumn.
In Rotterdam, July brings a 34% chance of sunny weather, making it a relatively bright month compared to the winter and early spring months. As we transition from the colder season, where sunlight is scarce, these summer days reflect a gradual increase in sunshine—starting from a mere 16% in January to a peak during the late spring. Although July's sunshine likelihood dips slightly from June’s 38%, it still outshines May's 32%. This trend underscores the city's shift toward a sun-favorable climate, inviting residents and visitors alike to make the most of the long summer days and enjoy the outdoors.
In Rotterdam, Netherlands, July stands out as a peak in daylight duration, matching June's impressive 16 hours of sunlight. As the year unfolds, the length of day steadily increases from a modest 8 hours in January to this summer zenith. Following July, daylight begins its graceful decline, with August seeing a reduction to 14 hours. This trend highlights a seasonal rhythm where longer days lead to vibrant summer activities, before transitioning back into the cozy embrace of shorter nights as autumn approaches. The gradual shift throughout the year illuminates not only the changing seasons but also the lively spirit of the city, making it a fantastic time to enjoy the bright days of July.
In July, the wind in Rotterdam tends to be mild, with an average speed of 3.7 m/s (8 mph). This marks a slight increase from June's lull of 3.2 m/s (7 mph), suggesting a gentle revival of breezes as summer reaches its peak. Throughout the year, wind patterns fluctuate, with the strongest gusts typically felt in October at 4.8 m/s (11 mph), while July's winds are calmer compared to the earlier months. Conversely, this summer month sits between the more robust winds of August at 4.1 m/s (9 mph) and the less blustery June, highlighting a transitional phase in the seasonal climate. These shifts create an inviting atmosphere, perfect for enjoying the vibrant outdoor life that Rotterdam has to offer during the summer.
Weather in Rotterdam varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Rotterdam, focusing on differences in temperature, rainfall, humidity, and UV levels.
July and January present strikingly contrasting weather conditions. In July, temperatures range from a cool 8°C (47°F) at night to a scorching maximum of 38°C (101°F) during the day, with an average temperature of 18°C (65°F). Despite experiencing 68 mm (2.7 in) of precipitation over approximately 13 days, the humidity level remains high at 80%, creating a warm and often muggy atmosphere. Conversely, January exhibits frigid conditions, with temperatures plummeting to a minimum of -8°C (19°F) and averaging just 5°C (41°F). The maximum temperature typically reaches only 14°C (58°F), and although there is slightly less precipitation at 57 mm (2.3 in) over about 12 days, the humidity is a bit higher at 91%. For a closer look at January weather specifics, you can explore Rotterdam weather in January.
July and February present stark contrasts in weather patterns. In July, temperatures can soar as high as 38°C (101°F), with an average temperature of 18°C (65°F) and a minimum of 8°C (47°F). The month experiences significant humidity at 80% and receives 68 mm (2.7 in) of precipitation over 13 days. In contrast, February is much colder, with temperatures ranging from a minimum of -9°C (15°F) to a maximum of 18°C (65°F), and an average of only 5°C (42°F). While it sees slightly less precipitation at 65 mm (2.6 in) across 12 days, humidity is higher at 89%. For a detailed look at February conditions, check out Rotterdam weather in February.
July and March present distinct contrasts in weather patterns. July boasts warmer temperatures, with a minimum of 8°C (47°F) and an average of 18°C (65°F), peaking at a scorching 38°C (101°F). In contrast, March experiences much cooler conditions, where temperatures range from a minimum of -8°C (18°F) to an average of 7°C (45°F), with a maximum of 21°C (71°F). Both months have similar precipitation levels, around 68-69 mm (2.7 in), but July sees a slight reduction in rainy days, averaging 13, compared to March's 14 days of precipitation. Furthermore, humidity levels remain high in both months, with July at 80% and March at 87%. For a more detailed comparison of March weather, check out Rotterdam weather in March.
In comparing the weather between July and April, one can observe distinct differences in temperature and precipitation patterns. July experiences much warmer conditions, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 38°C (101°F), averaging around 18°C (65°F). In contrast, April's temperatures are notably cooler, with a minimum of -1°C (30°F) and a maximum of 27°C (81°F), averaging 10°C (50°F). Precipitation is also more pronounced in July, with 68 mm (2.7 in) of rainfall over 13 days, compared to April's 44 mm (1.7 in) over 9 days. Humidity remains fairly high throughout both months, with July at 80% and April slightly higher at 85%. For more details on April's weather, you can check Rotterdam weather in April.
In comparing the weather between May and July, we notice significant differences in temperature and precipitation patterns. July boasts a much wider temperature range, with minimums of 8°C (47°F), average highs of 18°C (65°F), and peaks that can reach up to 38°C (101°F). In contrast, May's temperatures are milder, with a minimum of 1°C (35°F), an average of 13°C (56°F), and a maximum of 31°C (87°F). While July experiences slightly more precipitation (68 mm or 2.7 in) over 13 days, May follows closely with 65 mm (2.5 in) over 12 days. Humidity levels remain fairly high in both months, at 80% in July and 82% in May. For more detailed insights, check out Rotterdam weather in May.
When comparing the weather in July to June, July generally sees warmer temperatures, with a minimum of 8°C (47°F) and a maximum of 38°C (101°F), compared to June's range of 7°C (45°F) to a maximum of 32°C (89°F). The average temperature in July is also slightly higher at 18°C (65°F) compared to June's 17°C (63°F). While both months experience similar levels of precipitation—68 mm (2.7 in) in July versus 72 mm (2.8 in) in June—July has slightly more rainy days at 13 compared to 10 in June. Humidity levels remain relatively high in both months, with July at 80% and June at 82%. For more detailed information on June weather specifically, you can refer to Rotterdam weather in June.
In comparing the weather between July and August, we see some notable differences. July boasts a wider temperature range, with a minimum of 8°C (47°F) and a maximum of 38°C (101°F), while August sees milder temperatures, peaking at 33°C (93°F). Both months share the same average temperature of 18°C (65°F). When it comes to precipitation, August experiences slightly higher rainfall at 84 mm (3.3 in) over 14 days, compared to July’s 68 mm (2.7 in) over 13 days. Additionally, humidity levels in August are marginally lower at 76%, contrasted with July's higher humidity of 80%. For more details on the weather in August, check out Rotterdam weather in August.
July and September present contrasting weather patterns in terms of temperature and precipitation. In July, temperatures can range from a minimum of 8°C (47°F) to a blistering maximum of 38°C (101°F), with an average of 18°C (65°F). The month is characterized by 68 mm (2.7 in) of precipitation spread over 13 days and a high humidity level of 80%. In contrast, September sees cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 31°C (87°F), averaging 15°C (60°F). While it experiences slightly higher precipitation at 75 mm (3.0 in) over 11 days, the humidity remains comparable at 82%. For further details, you can explore Rotterdam weather in September.
July and October exhibit significantly different weather patterns, reflecting the transition from the height of summer to the onset of autumn. In July, temperatures range from a minimum of 8°C (47°F) to a maximum of 38°C (101°F), with an average of 18°C (65°F). The month experiences moderate precipitation, totaling 68 mm (2.7 in) over about 13 days, accompanied by a humidity level of 80%. In contrast, October sees cooler temperatures, with a minimum of 2°C (36°F), an average of 12°C (55°F), and a maximum of 25°C (78°F). This month has higher precipitation, totaling 92 mm (3.6 in) across 16 days, and a slightly increased humidity level of 89%. For more detailed information about the weather in October, visit Rotterdam weather in October.
In July, temperatures in the region can soar, with a minimum of 8°C (47°F) and an average of 18°C (65°F), peaking at a scorching 38°C (101°F). The month experiences significant humidity at 80% and has about 68 mm (2.7 in) of precipitation over 13 days. In contrast, November brings a much cooler climate, with temperatures ranging from a minimum of -2°C (29°F) to an average of 8°C (46°F) and a maximum of 18°C (65°F). Precipitation decreases slightly to 56 mm (2.2 in) over 12 days, yet the humidity increases to a notable 92%. For more details on weather patterns during this month, check Rotterdam weather in November.
In comparing July and December weather, one can see a stark contrast between the two months. July brings a minimum temperature of 8°C (47°F) and an average of 18°C (65°F), reaching highs of 38°C (101°F) on hotter days, with relatively moderate precipitation at 68 mm (2.7 in) over 13 days. In contrast, December features a much cooler climate with a minimum temperature of -4°C (25°F) and an average of 6°C (43°F), peaking at 14°C (57°F). Interestingly, December experiences higher precipitation levels at 90 mm (3.5 in) across 17 days, coupled with higher humidity at 92%. For those interested in more details about the December weather in Rotterdam, I recommend checking out Rotterdam weather in December.
July in Rotterdam brings a delightful shift in weather, offering a blend of warmth and occasional rain. With temperatures reaching their peak, residents and visitors can experience the summer's heat, contrasting with the cooler months of spring and autumn. The humidity remains relatively high, contributing to a lush landscape, but it's balanced by the vibrancy of summer activities. While the month can see a few wet days, the sunshine predominates compared to the colder, rainier winter months. For more in-depth insights about the seasonal climate dynamics, explore Rotterdam Climate.