July Weather in Winterthur, Switzerland

Last updated: August 27, 2025

Experience the captivating July weather in Winterthur, Switzerland, where temperatures soar with a maximum of 36°C (96°F) and hover around an average of 20°C (68°F). Although the days can be warm, evenings cool down to a refreshing minimum of 8°C (47°F). July is characterized by a humid atmosphere with an average humidity level of 83%, creating a lush, vibrant environment. Prepare for some rain, as the month typically sees 92 mm (3.6 in) of precipitation spread over 14 days, offering a delightful balance to the summer heat. Embrace the seasonal charm of Winterthur, where warm days meet the freshness of rain-kissed landscapes.

July Temperature in Winterthur

In July, Winterthur, Switzerland experiences a significant rise in temperatures, showcasing the peak of summer with a comfortable average of 20°C (68°F). The month starts with minimum temperatures around 8°C (47°F) and can soar to a thrilling maximum of 36°C (96°F), marking one of the hottest times of the year. This sharp upward trend from the cooler months not only invites locals and tourists alike to bask in the warm sunshine but also highlights a dramatic shift from the winter chill, where January's maximum hovers around 15°C (60°F). With July’s inviting warmth, residents enjoy long, sunny days, setting the stage for vibrant outdoor activities and stunning landscapes that make this Swiss city a delightful summer escape.

July Weather in Winterthur: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Winterthur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Winterthur, July 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).
JanFebMarAprMayJunJulAugSepOctNovDec343842495665676759514137
Data source: Temperature data for Winterthur 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.

July Precipitation in Winterthur

In July, Winterthur experiences a moderate precipitation level of 92 mm (3.6 in), falling on an average of 14 days, indicating a consistent pattern of summer rainfall. This marks a slight decrease compared to the wetter months of May and June, where precipitation peaked at 123 mm and 138 mm, respectively. The trend suggests that while early summer is characterized by heavier downpours, July transitions into a drier phase, though still maintaining a notable number of rainy days. As the month gives way to August, precipitation increases once more to 114 mm (4.5 in), creating a cycle of fluctuating rainfall that defines Winterthur’s summer experience. Overall, July serves as a bridge in the seasonal rainfall pattern, balancing the lush greenery fostered by previous rains with the onset of warmer, sunnier days.

July Precipitation Trends in Winterthur

The chart displays monthly precipitation patterns in Winterthur, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Winterthur, July typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec9875866312313892114849462121
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Winterthur

In Winterthur, Switzerland, the humidity levels show an interesting trend throughout the year, peaking in the winter months. Starting strong in January at 92%, the humidity gradually decreases to 80% by May, marking a shift towards drier conditions in late spring. As summer arrives, July holds steady at 83%, just slightly above the average for the season. This mild dip continues into August before the humidity rises again in the fall, hitting 90% in October. The consistent presence of high humidity levels—particularly in the latter part of the year—serves as a reminder of the region's cool, damp climate. Overall, residents can expect a notable balance between moisture and climate variation throughout the seasons in Winterthur.

July Average Humidity in Winterthur

This chart illustrates the average monthly humidity levels in Winterthur, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Winterthur is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Winterthur

In July, Winterthur experiences a very high UV Index of 9, which means sun protection is essential with a burn time of just 15 minutes. This peak level of UV radiation follows a steady rise from January's low exposure of 2 to the moderate levels seen in both February and March. By April, the intensity ramps up to high, foreshadowing the intensity of summer. As we move into June and July, the UV Index remains at its highest, emphasizing the need for sunscreen and protective clothing. Interestingly, this is followed by a slight decrease in August, where the UV Index drops to 8, but still demands vigilance. For more detailed information on UV levels throughout the year, check out Winterthur UV Index.

Maximum UV Index Levels in Winterthur for July

The chart shows the monthly maximum UV Index (UVI) for Winterthur in July, 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 July, the maximum UV index in Winterthur typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Winterthur July 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.

July Sunshine in Winterthur

In Winterthur, Switzerland, July stands out as a beacon of sunshine, boasting an impressive 406 hours of sunlight, making it the brightest month of the year. This peak follows a steady rise from the 147 hours recorded in January, showcasing an uplifting trend as the days lengthen towards summer. The gradual increase in sunlight from February's 215 hours to June's 379 hours paints a vivid picture of the changing seasons, culminating in July's expansive sunshine. As summer wanes into August with 375 hours, the decrease is gentle, hinting that the warmth lingers just a bit longer before reverting to the cooler months ahead. With such a dynamic range throughout the year, Winterthur serves as a reminder of the vibrant interplay between light and shadow, transforming the landscape with each passing season.

Monthly Sunshine Duration in Winterthur: July Highlighted

The July sunshine duration represents the total number of hours Winterthur experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec147h215h286h351h358h379h406h375h316h266h195h165h
Data source: Winterthur July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Winterthur During July

In Winterthur, Switzerland, July brings a 35% chance of sunny weather, leveling out with the slightly lower prospects of June. This reflects a broader trend of fluctuating sunshine as the year progresses, peaking in the early summer months. Following a gradual rise from the chilly winter, where the sun graces the sky just 16% of the time in January, there's a notable leap towards spring, culminating in 49% sunny days by April. While the summer warmth invites outdoor activities, the reliability of sun-filled days varies. August sees a slight increase to 38%, hinting that while the chance of sun remains consistent, it can still be a bit unpredictable during the height of summer. Overall, July presents a perfectly promising but moderated expectation for sunny weather, encouraging residents and visitors alike to enjoy the season while keeping an eye on the clouds.

Percentage of Sunny Days in July in Winterthur

The chart illustrates the percentage of sunny days in Winterthur throughout the year, with July 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 Winterthur experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec16%39%45%49%35%33%35%38%45%37%24%27%
Data source: Winterthur July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Winterthur in July

In Winterthur, Switzerland, the daylight duration dramatically transforms throughout the year, revealing a clear seasonal trend. January starts off with a modest 8 hours of daylight, gradually climbing to 11 hours by March as spring approaches. The arrival of April heralds a brightening landscape, reaching 13 hours, followed by the peak months of May and June, where daylight stretches to a full 15 hours. Interestingly, July mirrors this maximum, maintaining the extended daylight that promotes outdoor activities and vibrant summer life. As summer wanes, daylight begins to diminish, with August offering 14 hours and dropping to 12 in September. The transition into autumn sees a further decline, with October providing 10 hours, before winter returns to 8 hours in both November and December. This cyclical pattern not only influences daily rhythms but also highlights the beauty of seasonal changes in this picturesque Swiss locale.

Average Daylight Hours in Winterthur for July

The chart illustrates the variation in daylight duration in Winterthur throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 54m10h 15m11h 56m13h 39m15h 8m15h 53m15h 29m14h 10m12h 30m10h 48m9h 17m8h 29m
Data source: Winterthur daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Winterthur

In July, Winterthur experiences a gentle breeze, with an average wind speed of 1.9 m/s (4 mph), marking a slight uptick from the calm conditions of June. This trend of gentle winds continues into August, maintaining the same speed. Observing the year as a whole, winds tend to be the lightest during the summer months, with January showcasing the highest winds at 2.5 m/s (6 mph). Overall, the city's wind patterns exhibit a clear seasonal rhythm, with the mildest breezes occurring in the warmest months, inviting residents and visitors alike to enjoy the serene atmosphere.

Average July Wind Speed in Winterthur

The chart displays monthly wind speed patterns in Winterthur, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.22.32.32.81.81.9 m/s1.91.71.82.02.3
Data source: Winterthur July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Winterthur Compares to Other Months

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

July and January present strikingly different weather patterns in Winterthur. In July, temperatures range from a minimum of 8°C (47°F) to a scorching maximum of 36°C (96°F), with an average of 20°C (68°F). This month experiences significant humidity at 83% and receives about 92 mm (3.6 in) of precipitation over 14 days. In contrast, January is much colder, with temperatures ranging from a chilly -13°C (9°F) to a maximum of 15°C (60°F), averaging just 1°C (34°F). Although January has slightly higher precipitation at 97 mm (3.8 in) over 11 days and a humidity level of 92%, the overall experience is one of crisp, cold air compared to the warmth and humidity of July. For more detailed insights, you can check the Winterthur weather in January.

In comparing July and February weather, the stark contrast is evident. July boasts a relatively mild average temperature of 20°C (68°F), with highs reaching up to 36°C (96°F), while February's average temperature is a chilly 3°C (38°F), with lows plummeting to -12°C (10°F). Precipitation is slightly higher in July at 92 mm (3.6 in) over 14 days compared to February's 75 mm (3.0 in) across 12 days, indicating more moisture during the warmer month. Additionally, humidity remains high in both months, at 83% in July and 89% in February. To delve deeper into February's weather, you can explore Winterthur weather in February.

July and March present contrasting weather patterns. In July, temperatures soar with averages around 20°C (68°F) and a maximum of 36°C (96°F), while the air remains humid at 83%. Despite the warmth, July experiences significant precipitation, totaling 92 mm (3.6 in) over 14 days. In stark contrast, March's temperatures are much colder, with a minimum of -12°C (11°F) and an average of only 6°C (43°F). Although the maximum reaches 20°C (69°F), March still shows a slightly lower precipitation level at 86 mm (3.4 in) over the same number of rainy days. The humidity is also high in March, at 87%. For more detailed insights, check out Winterthur weather in March.

In July, the weather is significantly warmer than in April, with average temperatures reaching 20°C (68°F) and highs soaring up to 36°C (96°F). In contrast, April experiences cooler temperatures, with a maximum of 26°C (79°F) and an average of only 10°C (50°F). While both months see precipitation, July is wetter with 92 mm (3.6 in) over 14 days compared to April's 63 mm (2.5 in) over 9 days. Humidity levels remain similar, with July averaging 83% and April at 84%. For more details on April's weather, you can visit Winterthur weather in April.

When comparing the weather in July and May, notable differences emerge in temperature and precipitation patterns. July experiences warmer conditions, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 36°C (96°F), while May has cooler temperatures, averaging between -2°C (28°F) and a maximum of 30°C (87°F). Although July receives less rainfall at 92 mm (3.6 in) over 14 days compared to May's 123 mm (4.9 in) over 17 days, it maintains a similar humidity level of around 83% in July versus 80% in May. For a deeper look into the specifics of May's climate, you can check out Winterthur weather in May.

In comparing the weather patterns of June and July, July generally exhibits a slightly warmer temperature range, with minimums around 8°C (47°F), averages at 20°C (68°F), and maximums reaching 36°C (96°F). In contrast, June has a lower minimum of 5°C (42°F) and averages closer to 18°C (65°F), peaking at 33°C (92°F). Precipitation levels are notably higher in June, with a total of 138 mm (5.4 in) over 14 days, compared to July's 92 mm (3.6 in) over the same number of days. Humidity levels remain similar, with July at 83% and June at 82%. For more detailed weather insights, you can check Winterthur weather in June.

In July, the weather features a broader temperature range with minimums of 8°C (47°F) and maximums reaching up to 36°C (96°F), averaging around 20°C (68°F). This month experiences significant precipitation with a total of 92 mm (3.6 in) over 14 days and a relatively high humidity level of 83%.

In contrast, August shows slightly cooler conditions with a maximum temperature of 35°C (95°F) and an average of 19°C (67°F). Precipitation increases to 114 mm (4.5 in) over 12 days, while humidity drops slightly to 80%. For more details on the weather in August, you can visit Winterthur weather in August.

In comparing the weather between July and September, July typically boasts warmer temperatures, with a minimum of 8°C (47°F), an average of 20°C (68°F), and a maximum reaching up to 36°C (96°F). In contrast, September sees cooler temperatures, experiencing a minimum of 3°C (38°F), an average of 15°C (59°F), and a maximum of 29°C (84°F). Despite the slight difference in precipitation, with July receiving 92 mm (3.6 in) over 14 days and September recording 84 mm (3.3 in) over 11 days, both months maintain a consistent humidity level of 83%. For more detailed insights on the climatic conditions of September, you can check out Winterthur weather in September.

July and October present distinct contrasts in weather. July boasts warmer temperatures, with averages around 20°C (68°F) and peaks reaching up to 36°C (96°F), accompanied by high humidity at 83%. In contrast, October experiences cooler conditions, where average temperatures drop to around 10°C (51°F), maxing out at 23°C (73°F), and even dipping to a chilly -1°C (31°F) at night. Both months see similar precipitation levels—July at 92 mm (3.6 in) over 14 days and October slightly higher at 94 mm (3.7 in) over 12 days, with October’s humidity rising to 90%. To learn more about the weather specifics this October, check out Winterthur weather in October.

July and November present strikingly different weather patterns. In July, temperatures range from a minimum of 8°C (47°F) to a scorching maximum of 36°C (96°F), with an average of 20°C (68°F). The month experiences considerable humidity at 83% and sees about 92 mm (3.6 in) of precipitation spread over 14 days. In contrast, November brings a noticeable chill, with temperatures dipping to a minimum of -3°C (26°F) and averaging only 5°C (41°F). Although the maximum reaches a mild 20°C (69°F), the overall feel is much cooler, accompanied by higher humidity at 88% and less rainfall, totaling 62 mm (2.5 in) over 11 days. For more insights, you can check Winterthur weather in November.

July and December present stark contrasts in weather conditions. In July, temperatures range from a mild 8°C (47°F) at night to a scorching maximum of 36°C (96°F), with an average temperature of 20°C (68°F). This month also sees significant rainfall, totaling 92 mm (3.6 in), with precipitation occurring on about 14 days, while humidity levels sit relatively high at 83%. In contrast, December experiences much colder temperatures, with lows plummeting to -8°C (19°F), an average of just 3°C (37°F), and highs reaching around 14°C (57°F). Additionally, it is wetter, with precipitation levels rising to 121 mm (4.8 in) over 18 days and humidity increasing to 90%. For more detailed information, you can check Winterthur weather in December.

Compare Winterthur's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Winterthur

In July, Winterthur experiences a vibrant shift in weather, characterized by warmer temperatures and increased humidity compared to other months of the year. With an average daily temperature soaring to around 20°C (68°F), residents and visitors alike can enjoy the pleasant warmth, albeit with the possibility of occasional rain as evidenced by the 14 days of precipitation throughout the month. This combination of warmth and moisture creates a unique, sometimes muggy atmosphere not typically felt in the cooler seasons. If you're planning a trip or just want to know more about what to expect, check out the full details on Winterthur Climate.