Last updated: February 26, 2025
In Heidelberg, Germany, July weather offers a dynamic range of temperatures, with maximums soaring up to 37°C (100°F), while averaging a comfortable 20°C (68°F) and dropping to a cool 8°C (47°F) during the night. This month is marked by 66 mm (2.6 in) of precipitation, occurring on approximately 11 days, contributing to the region's lush scenery. With humidity levels sitting at a notable 83%, outdoor enthusiasts should be prepared for a mix of sunny days and occasional rain, making for an invigorating summer experience in this picturesque city.
In Heidelberg, Germany, July brings a delightful warmth that marks the height of summer. With minimum temperatures around 8°C (47°F) and averaging 20°C (68°F), residents and visitors can enjoy vibrant outdoor activities. However, the real attraction is the peak temperature, which can soar up to a sizzling 37°C (100°F), making this month one of the hottest of the year. This sharp rise from the cooler months is indicative of a significant seasonal shift, as the July climate offers a much-needed contrast to the frosty beginnings of the year. Whether you're strolling along the Neckar River or exploring the historical sites, July's warm embrace enhances the charm of Heidelberg, inviting everyone to bask in its summer splendor.
In July, Heidelberg experiences a moderate precipitation level, with an average of 66 mm (2.6 inches) of rain spread over 11 days. This amount is slightly lower than the previous months of June and May, which recorded 85 mm and 89 mm respectively, indicating a gradual decline as the summer progresses. Interestingly, while July's rainfall is less than what is seen earlier in the season, it still aligns with the overall trend of summer months tending to have fewer precipitation days compared to the earlier spring months. This combination of a moderate rainfall total and a consistent number of wet days contributes to Heidelberg's lush green landscapes during the summer, making it a picturesque time to explore the city.
In Heidelberg, Germany, July sees a humidity level of 83%, maintaining a relatively stable atmosphere compared to the preceding months. Throughout the year, the humidity exhibits a slight decline from the winter months, starting at a peak of 91% in January and gradually decreasing to 79% in May. As summer unfolds, a resurgence occurs, with June’s 82% paving the way for July's consistent 83%. This trend continues into August, which registers at 84%, highlighting a summer pattern where humidity levels remain notably high, creating a warm and often moist environment that's characteristic of the season.
In Heidelberg, Germany, July is a month marked by very high UV Index levels, consistently at 8, just like June and May. This intensity signals an increased risk of harm from unprotected sun exposure, giving residents and visitors alike a burn time of only 15 minutes. As summer reaches its peak, the need for sun protection becomes crucial. Notably, the UV Index begins to taper off in August, dropping to 7 and transitioning to high exposure conditions. This trend underscores the importance of being vigilant about UV safety throughout the summer months in Heidelberg. For more details, check out Heidelberg UV Index.
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In July, Heidelberg basks in an impressive 413 hours of sunshine, marking its peak brightness for the year. This vibrant month stands as a testament to the progressive increase in daylight hours, soaring from 118 hours in January to over 390 hours in June. As the summer unfolds, the city transitions from the gentle warmth of spring into the full embrace of solar abundance, paving the way for outdoor activities and a lively atmosphere. This trend continues into August, where the sunshine remains abundant at 385 hours, but starts to taper off as the year advances into the cooler months. The contrast between July’s sun-kissed days and the darker winter months is striking, revealing a rhythmic cycle that defines Heidelberg's seasonal charm.
In Heidelberg, Germany, the likelihood of sunny weather in July stands at a moderate 38%, slightly higher than the previous months of June and May, which recorded 35% and 32%, respectively. While July doesn’t boast the highest chances of sunshine throughout the year—those peaks occur in the spring months of March and April with 46% and 47%, respectively—it remains a promising time for outdoor activities compared to the gloomy depths of winter, where the chances dip as low as 13% in January. This summer month offers a pleasant respite, marking a transition towards sunnier September, which rises to 43%, capturing the essence of summer while hinting at the shifting seasons ahead.
In July, Heidelberg basks in approximately 15 hours of daylight, marking a peak in the summer months. This month, while slightly shorter than June's 16 hours, still promotes vibrant outdoor activities and lively gatherings, a continuation of the sun-soaked days that started in May with 15 hours. As the seasons transition towards late summer and early autumn, daylight gradually wanes; August offers 14 hours, hinting at the shorter days to come. This gradual decline, which begins in earnest as summer draws to a close, illustrates the rhythmic ebb and flow of daylight throughout the year, from the sparse 8 hours in January to a rich tapestry of light and life during the height of summer.
In July, Heidelberg experiences a gentle average wind speed of 2.4 m/s (5 mph), slightly calmer than the preceding months. While the spring months showcase a noticeable uptick in wind, May boasts the highest speed of 3.5 m/s (8 mph), the winds start to taper off as summer sets in. This trend of diminishing wind continues into June, where the speed drops to 2.1 m/s (5 mph). The mild breeze of July is emblematic of the region's warmer summer climate, providing a serene backdrop for residents and visitors alike to enjoy the charming landscapes without the interference of strong gusts. As the season transitions, August sees a minor increase in wind speed to 2.6 m/s (6 mph), hinting at the gradual return to the breezier autumn months ahead.
The weather in Heidelberg changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of July's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Heidelberg and find detailed weather information for every month.
In July, the weather in Heidelberg offers a warm average temperature of 20°C (68°F), with highs reaching up to 37°C (100°F) on hotter days, while minimum temperatures stay relatively mild at 8°C (47°F). Conversely, January presents a stark contrast, with chilly average temperatures around 2°C (36°F) and nighttime lows plunging to -13°C (9°F). Although July experiences some precipitation with 66 mm (2.6 in) over 11 days, January sees slightly more rain at 78 mm (3.1 in) over 13 days, paired with higher humidity levels at 91%. For a closer look at January weather specifics, you can visit Heidelberg weather in January.
July and February present a striking contrast in weather conditions. In July, temperatures can soar to a maximum of 37°C (100°F), with an average temperature of 20°C (68°F), while the region experiences high humidity levels of 83%. Precipitation during this month amounts to 66 mm (2.6 in) over 11 days. In stark contrast, February features much colder temperatures, peaking at 18°C (65°F) with an average of just 4°C (39°F) and a chilling minimum of -10°C (14°F). Although February has slightly higher precipitation at 72 mm (2.8 in), the increased humidity at 89% contributes to a different, more frigid feel. For more details on February weather, check Heidelberg weather in February.
July and March present stark contrasts in weather patterns. In July, temperatures range from a minimum of 8°C (47°F) to a scorching maximum of 37°C (100°F), with an average temperature of 20°C (68°F). The month sees about 66 mm (2.6 in) of precipitation over 11 days, accompanied by high humidity levels at 83%. In contrast, March experiences cooler temperatures, starting at a minimum of -10°C (15°F) and peaking at 23°C (73°F), with an average of 6°C (44°F). This month is wetter, with 92 mm (3.6 in) of precipitation spread across 14 days, and slightly higher humidity at 87%. For more detailed information on March weather, visit Heidelberg weather in March.
When comparing the weather in July and April, notable differences emerge. July experiences a much warmer range, with temperatures ranging from a minimum of 8°C (47°F) to a scorching maximum of 37°C (100°F) and an average of 20°C (68°F). In contrast, April's temperatures are significantly cooler, with a minimum of -4°C (25°F) and a maximum of 27°C (80°F), averaging at 10°C (51°F). Precipitation is also greater in July, accumulating to 66 mm (2.6 in) over 11 days, while April sees less rain at 35 mm (1.4 in) across 8 days. Interestingly, both months have the same humidity level of 83%, contributing to a feeling of heaviness in the air regardless of the seasonal warmth. For more detailed information, you can check Heidelberg weather in April.
When comparing the weather in July and May, a few notable differences emerge. July typically enjoys higher average temperatures, ranging from a minimum of 8°C (47°F) to a maximum of 37°C (100°F), with an overall average of 20°C (68°F). In contrast, May has a cooler profile, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 31°C (88°F) and an average of 14°C (57°F). Precipitation is slightly lower in July at 66 mm (2.6 in) over 11 days, compared to May's 89 mm (3.5 in) across 13 days. Both months experience high humidity, with July at 83% and May at 79%. For a more detailed look at what to expect, check out Heidelberg weather in May.
In comparing the weather of July and June, both months exhibit similar humidity levels, with July at 83% and June slightly lower at 82%. July experiences a wider temperature range, with a minimum of 8°C (47°F), an average of 20°C (68°F), and a maximum of 37°C (100°F), while June's temperatures range from a minimum of 7°C (45°F), an average of 19°C (67°F), to a maximum of 35°C (96°F). Precipitation is slightly lower in July at 66 mm (2.6 in) compared to June's 85 mm (3.4 in), though both months see precipitation on 11 days. For more detailed insights, you can check Heidelberg weather in June.
July and August in Heidelberg showcase quite similar weather patterns, but with some notable differences. July typically sees a slightly higher maximum temperature of 37°C (100°F) compared to August's 36°C (96°F), while the minimum temperature in August dips to 7°C (44°F), just a notch lower than July's 8°C (47°F). Both months maintain an average temperature around 20°C (68°F for July and 69°F for August), indicating a consistent warmth. Precipitation is fairly comparable, with July receiving 66 mm (2.6 in) over 11 days and August slightly lower at 60 mm (2.4 in) over 12 days. Humidity remains elevated in both months, with August experiencing a marginally higher level at 84% compared to July's 83%. For more detailed insights, check out Heidelberg weather in August.
In comparing the weather of July and September, July boasts significantly warmer temperatures, with a minimum of 8°C (47°F) and an average high of 37°C (100°F), while September sees cooler conditions, ranging from a minimum of 4°C (39°F) to a maximum of 31°C (89°F). Despite July's higher average temperature of 20°C (68°F), September maintains a relatively close average of 16°C (61°F). Rainfall is also slightly lower in September, with 58 mm (2.3 in) over 8 days compared to July’s 66 mm (2.6 in) across 11 days, leading to a mildly drier feel in the early autumn month while humidity remains comparable at 83% in July and 85% in September. For more detailed weather information, you can check this link: Heidelberg weather in September.
In July, the weather showcases a wide temperature range with minimums around 8°C (47°F) and maximums soaring up to 37°C (100°F), making it the warmest month of the year. The average temperature hovers at a comfortable 20°C (68°F), coupled with relatively high humidity at 83%. However, this month sees around 66 mm (2.6 in) of precipitation over 11 days.
In contrast, October experiences a cooler climate, with minimum temperatures dropping to 2°C (35°F) and an average of only 11°C (52°F). While maximum temperatures can reach 26°C (78°F), the overall atmosphere feels distinctly autumnal. Precipitation slightly increases to 74 mm (2.9 in) across 13 days, and humidity rises to 88%. For a detailed look at weather patterns, you can check Heidelberg weather in October.
In July, the weather is warm with temperatures ranging from a minimum of 8°C (47°F) to a scorching maximum of 37°C (100°F), averaging around 20°C (68°F). The humidity is relatively high at 83%, and there are 11 days of precipitation totaling 66 mm (2.6 in). In contrast, November sees much cooler temperatures, with a minimum of -4°C (26°F) and a maximum of 21°C (70°F). The average temperature drops to 6°C (43°F), accompanied by slightly lower precipitation of 57 mm (2.3 in) over 10 days, but the humidity increases to 89%. For a more detailed look at the weather in November, you can check out Heidelberg weather in November.
In July, the weather in Heidelberg is characterized by warm temperatures, with a minimum of 8°C (47°F) and a comfortable average of 20°C (68°F), peaking at a scorching 37°C (100°F). Despite relatively low precipitation levels of 66 mm (2.6 in) over 11 days, humidity is quite high at 83%, creating a muggy atmosphere. In stark contrast, December brings much cooler temperatures, with a minimum of -6°C (21°F) and an average of just 4°C (39°F), while max temperatures reach a chilly 14°C (58°F). Precipitation also increases to 134 mm (5.3 in) over 19 days, accompanied by even higher humidity at 91%. For more details, you can check out Heidelberg weather in December.
In July, Heidelberg experiences a notable shift in weather compared to other months, with warmer temperatures and increased humidity, creating a vibrant summer atmosphere. While the month can reach scorching highs around 37°C, the average warmth promotes outdoor activities amidst beautiful landscapes. However, don't forget to prepare for scattered rain, as July typically sees around 11 days of precipitation, which contributes to the overall moist air with humidity levels peaking at 83%. This blend of heat and humidity is characteristic of summer, making it essential to stay hydrated and enjoy the seasonal charm of the city. For more details on what to expect throughout the year, visit Heidelberg Climate.