August Weather in Zurich, Switzerland

Last updated: August 27, 2025

August in Zurich, Switzerland, offers a vibrant blend of summer warmth and refreshing showers. With maximum temperatures soaring to 34°C (93°F), the city experiences an enjoyable average of 20°C (67°F), while cooler nights bring temperatures down to a refreshing 9°C (49°F). Despite the 80% humidity, lush landscapes thrive, complemented by 141 mm (5.6 in) of precipitation over approximately 14 days, ensuring the city remains green and lively. Whether basking in the sun or strolling through a gentle rain, August showcases the charm of Zurich in full bloom.

August Temperature in Zurich

In August, Zurich basks in the warmth of summer, with temperatures showcasing a delightful blend of mild nights and balmy days. The minimum temperature hovers around 9°C (49°F), ensuring evenings remain comfortably cool, while the average climbs to a pleasant 20°C (67°F), perfect for exploring the city. During this peak of summer, the maximum temperature can soar to 34°C (93°F), making it one of the warmest months of the year. This trend of rising temperatures from June through August highlights Zurich’s vibrant summer atmosphere, inviting both locals and visitors to revel in outdoor activities amid the scenic backdrop of the Alps. As summer wanes, a gradual shift towards cooler weather begins, but August stands proud as a month filled with warmth and vitality.

August Weather in Zurich: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Zurich, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Zurich, August 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).
JanFebMarAprMayJunJulAugSepOctNovDec353943505665676760524238
Data source: Temperature data for Zurich 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.

August Precipitation in Zurich

In August, Zurich experiences a notable increase in precipitation, with an average of 141 mm (5.6 in) recorded over approximately 14 days of rain. This month marks a peak in the summer season, showcasing a slight rise from July's 134 mm. The consistency of rainy days throughout the summer, particularly from June to August, emphasizes a trend of late summer showers contributing to the lush greenery of the region. As the summer wanes, August's rainfall plays a crucial role in preparing the landscape for the upcoming autumn, ensuring that Zurich's picturesque scenery remains vibrant and alive.

August Precipitation Trends in Zurich

The chart displays monthly precipitation patterns in Zurich, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Zurich, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec112871007713714913414110512276136
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Zurich

In August, Zurich experiences a humidity level of 80%, marking one of the drier months of the year. This slight drop from the summer peak in July at 83% suggests a gradual transition toward the more humid conditions that winter brings. Throughout the year, humidity in Zurich remains relatively high, peaking in the winter months, with January and December both reaching 92%. The overall trend reveals that while summer months may offer slightly lower humidity, the city's atmospheric moisture is a constant presence, creating a unique climate that residents have come to appreciate. As the seasons shift, the return to higher humidity levels in the fall and winter serves as a reminder of Zurich's mesic environment.

August Average Humidity in Zurich

This chart illustrates the average monthly humidity levels in Zurich, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Zurich 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 August generated using information from the Copernicus Climate Change Service.

August UV Index in Zurich

In August, Zurich experiences a very high UV Index of 8, prompting a burn time of just 15 minutes for unprotected skin. This month rounds out a summer where UV levels peaked at 9 during June and July, highlighting a trend of intensified sun exposure as summer unfolds. Although August sees a slight dip from the previous month's maximum, it's crucial for residents and visitors alike to remain vigilant about sun protection. As the UV Index begins to decrease in September, it serves as a reminder to protect yourself throughout the hotter months. For more detailed insights, visit the Zurich UV Index.

Maximum UV Index Levels in Zurich for August

The chart shows the monthly maximum UV Index (UVI) for Zurich in August, 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 August, the maximum UV index in Zurich typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986432
Data source: Zurich August 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.

August Sunshine in Zurich

In August, Zurich basks in an impressive 384 hours of sunshine, keeping the summer vibes alive just a step behind July's peak of 415 hours. As the warm embrace of summer gradually gives way to the cooler months, August remains a shining moment in the city's annual weather cycle. The gradual decline in daylight hours begins to reveal itself, as sunshine hours taper off into September's 320 hours. This month not only highlights the lingering warmth but also reflects a seasonal transition, inviting both locals and visitors to savor the last bits of sunny outdoor activities before autumn sets in. As Zurich glimmers under the summer sun, it offers a perfect backdrop for exploration, relaxation, and unforgettable experiences.

Monthly Sunshine Duration in Zurich: August Highlighted

The August sunshine duration represents the total number of hours Zurich experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec164h228h300h358h370h385h415h384h320h279h219h185h
Data source: Zurich August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Zurich During August

August in Zurich offers a moderate likelihood of sunny weather, with a 38% chance of sunshine illuminating the city. This figure is slightly higher than the average chances seen in the preceding summer months of June (32%) and July (35%), though it trails slightly behind the upcoming September, which enjoys a 41% chance of sun. As summer transitions into autumn, Zurich's weather reveals a trend of increasing sunshine opportunities in the later summer months, inviting both locals and visitors to enjoy the vibrant cityscape bathed in golden light before the cooler months set in.

Percentage of Sunny Days in August in Zurich

The chart illustrates the percentage of sunny days in Zurich throughout the year, with August 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 Zurich experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec15%37%45%49%33%32%35%38%41%36%23%30%
Data source: Zurich August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Zurich in August

In August, Zurich experiences a delightful transition as daylight begins to wane, offering around 14 hours of sunlight. This marks a slight decrease from the peak summer months of June and July, which each enjoyed a generous 15 hours of daylight. As the year progresses from the vibrant 15 hours in midsummer, August signals the gradual shift towards autumn, with September further dropping to 12 hours of light. This month embodies a harmonious balance, where the days are still long enough to savor the city's outdoor charms, yet hint at the cozy changes to come as nature prepares for the fall.

Average Daylight Hours in Zurich for August

The chart illustrates the variation in daylight duration in Zurich throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 57m10h 17m11h 56m13h 37m15h 5m15h 50m15h 26m14h 8m12h 30m10h 49m9h 19m8h 32m
Data source: Zurich daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Zurich

In August, Zurich experiences a gentle breeze with an average wind speed of 1.5 m/s (3 mph), marking a subtle dip from the summer months of May and June, which boast slightly higher winds. This tranquil air reflects the city's relaxed atmosphere during the late summer, where the lower wind speeds create a peaceful backdrop for outdoor activities. As the year progresses, a consistent pattern emerges: wind speeds generally decline as autumn approaches, peaking in the earlier months of the year. Thus, August stands out as a transitional period, heralding the serene end of summer while hinting at the calmer, cooler days ahead.

Average August Wind Speed in Zurich

The chart displays monthly wind speed patterns in Zurich, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.01.81.81.92.11.51.61.5 m/s1.41.51.61.8
Data source: Zurich August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Zurich Compares to Other Months

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

August and January present strikingly contrasting weather patterns. In August, temperatures typically range from a pleasant minimum of 9°C (49°F) to a warm maximum of 34°C (93°F), with an average of 20°C (67°F), making it one of the warmest months of the year. However, the high humidity at around 80% and significant rainfall of 141 mm (5.6 in) over 14 days can create an uncomfortable muggy feeling. In contrast, January experiences a much colder climate with temperatures ranging from a chilly minimum of -11°C (13°F) to a maximum of 15°C (59°F) and an average of just 1°C (35°F). Although January receives slightly less precipitation—112 mm (4.4 in) over 12 days—the humidity is notably higher at 92%. This stark difference underscores the shift from the warm, humid summer of August to the cold, crisp winter of January. For more details about the January climate, visit Zurich weather in January.

In August, Zurich experiences a warm and humid climate, with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 34°C (93°F) and an average of 20°C (67°F). The month sees significant rainfall, with 141 mm (5.6 in) of precipitation over about 14 days, making it one of the wetter months. In contrast, February is characterized by a much colder climate, with temperatures often dipping to a minimum of -12°C (10°F) and averaging around 4°C (39°F), while reaching highs of 18°C (65°F). Although February receives less precipitation at 87 mm (3.4 in) over 11 days, it is marked by higher humidity at 89%. For more details, visit Zurich weather in February.

In August, the weather in Zurich is characterized by much warmer temperatures, with a minimum of 9°C (49°F) and an average of 20°C (67°F), reaching a maximum of 34°C (93°F). In contrast, March experiences significantly cooler conditions, with temperatures dropping as low as -11°C (13°F) and an average of just 6°C (43°F). While August sees more sunshine and warmth, it also has higher humidity at 80%, compared to the 87% humidity in March. Precipitation patterns differ as well; August receives 141 mm (5.6 in) across 14 days, whereas March has 100 mm (3.9 in) over 16 days. For a detailed look at the weather conditions in March, check out Zurich weather in March.

When comparing the weather in August and April, we can see a stark contrast in temperatures and precipitation. August boasts a much warmer range, with minimums around 9°C (49°F) and highs reaching up to 34°C (93°F), compared to April's chilly lows of -3°C (26°F) and maximums of 26°C (79°F). Precipitation in August is more substantial, with 141 mm (5.6 in) over 14 days, whereas April experiences only 77 mm (3.0 in) over 10 days. Notably, humidity levels are relatively high in both months, with August at 80% and April slightly higher at 84%. For more detailed insights, visit Zurich weather in April.

When comparing the weather in August and May, a distinct difference in temperatures becomes evident. August generally boasts warmer temperatures with a minimum of 9°C (49°F), an average of 20°C (67°F), and a maximum of 34°C (93°F). In contrast, May’s temperatures range from a chilly minimum of -2°C (29°F) to a more moderate maximum of 30°C (86°F), with an average of 13°C (56°F). Both months experience similar levels of precipitation, with August recording 141 mm (5.6 in) over 14 days, while May has 137 mm (5.4 in) over 16 days. Additionally, humidity levels remain consistent at 80% for both months, making for a humid climate regardless of the season. For a more detailed look at May's weather, check out Zurich weather in May.

In comparing the weather of August and June, both months experience similar high temperatures, peaking at 34°C (93°F). However, August has a slightly warmer average temperature of 20°C (67°F), compared to June's average of 18°C (65°F). Precipitation levels are also comparable, with August receiving 141 mm (5.6 in) over 14 days and June slightly higher at 149 mm (5.9 in) across 16 days. Additionally, humidity levels are consistently high in both months, with August at 80% and June at 82%. For a detailed look at June's weather, you can visit Zurich weather in June.

In comparing the weather conditions of August and July, we see some notable similarities and differences. Both months exhibit a range of temperatures, with minimums around 9-10°C, and average highs peaking at approximately 34°C. August generally experiences slightly higher precipitation, totaling 141 mm over 14 days compared to July's 134 mm over 16 days. Humidity levels are also comparable, with August at 80% and July slightly higher at 83%. For more detailed insights, you can refer to Zurich weather in July.

August presents a warmer climate with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 34°C (93°F), and an average temperature of 20°C (67°F). The month is marked by significant rainfall, accumulating 141 mm (5.6 in) over 14 days, paired with high humidity levels averaging around 80%. In contrast, September experiences cooler temperatures, with a minimum of 5°C (41°F), an average of 16°C (60°F), and a maximum of 28°C (83°F). This month sees slightly less precipitation at 104 mm (4.1 in), spread over 11 days, while humidity rises slightly to 83%. For more details on September weather, you can visit Zurich weather in September.

August weather in Zurich features a broader temperature range, with minimums around 9°C (49°F) and maximums soaring up to 34°C (93°F), resulting in an average of 20°C (67°F). In contrast, October sees much cooler conditions, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 23°C (73°F), leading to a lower average of 11°C (52°F). While August experiences relatively high humidity at 80% and more precipitation (141 mm over 14 days), October is slightly wetter with 122 mm but maintains a higher humidity level at 90%, often making the air feel more damp. For more information, visit Zurich weather in October.

August weather in Zurich is characterized by warm temperatures, with a minimum of 9°C (49°F), an average of 20°C (67°F), and a maximum reaching up to 34°C (93°F). This month experiences significant precipitation, with 141 mm (5.6 in) falling over an average of 14 days, and humidity levels around 80%. In contrast, November brings much cooler conditions, with temperatures ranging from a minimum of -1°C (30°F) to an average of 6°C (43°F), peaking at 21°C (71°F). Precipitation decreases to 76 mm (3.0 in) spread across 12 days, but humidity rises to 88%. For more detailed information, check out Zurich weather in November.

August and December in Zurich present a stark contrast in weather conditions. In August, temperatures range from a mild 9°C (49°F) at night to a warm 34°C (93°F) during the day, accompanied by relatively high humidity levels at 80%. While precipitation is frequent, with rain on about 14 days, the overall atmosphere remains warm and summery.

In contrast, December brings a significant drop in temperatures, with lows plunging to -5°C (23°F) and daytime highs averaging around 3°C (38°F). Although precipitation is slightly lower at 136 mm (5.4 in), it occurs on more days, totaling 19, leading to a damp and chilly environment with heightened humidity at 90%. For a more detailed look at December weather, you can visit Zurich weather in December.

Compare Zurich's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Zurich

As summer reaches its peak in August, Zurich transforms into a vibrant city, marked by warm temperatures that invite outdoor activities. With average highs around 20°C and occasional spikes soaring to 34°C, the month offers a delightful mix of warmth and sunshine, although it can also be characterized by increased humidity and frequent rain, totaling about 14 rainy days. This blend of weather makes August distinct from the milder temperatures of spring and the crispness of early autumn, ensuring that visitors experience a lively urban atmosphere alongside the natural beauty of the surrounding landscapes. For a deeper dive into the nuances of Zurich's climate, visit Zurich Climate.