August Weather in Romanshorn, Switzerland

Last updated: August 27, 2025

In Romanshorn, Switzerland, August brings a delightful mix of summer warmth and occasional rain. Temperatures soar to a maximum of 33°C (91°F), providing plenty of opportunities for outdoor activities. The average temperature hovers around a comfortable 19°C (67°F), while cooler nights can dip to a minimum of 9°C (49°F). With a total precipitation amount of 175 mm (6.9 in) over 14 days, residents and visitors can expect some rainy spells, contributing to an overall humidity level of 80%. This blend of warm days and refreshing rain creates a lush landscape and a vibrant atmosphere, making August a unique time to experience the beauty of Romanshorn.

August Temperature in Romanshorn

In August, Romanshorn experiences mild yet pleasant temperatures, making it one of the most enjoyable months of the year. With a minimum of 9°C (49°F), an average of 19°C (67°F), and a maximum reaching up to 33°C (91°F), the summer warmth lingers, creating ideal conditions for outdoor activities by the scenic Lake Constance. This month typically showcases a steady climb in temperatures, following July's peak heat, suggesting a trend towards balmy summer days that invite both tourists and locals to revel in sun-soaked adventures. As the summer begins to wind down, the gradual transition towards cooler days can be felt, providing a delightful end to the season.

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

The chart illustrates August temperature patterns in Romanshorn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Romanshorn, 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).
JanFebMarAprMayJunJulAugSepOctNovDec323641495665676659514236
Data source: Temperature data for Romanshorn 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 Romanshorn

August stands out in Romanshorn, Switzerland, as the month with the highest precipitation, accumulating a notable 175 mm (6.9 in) over 14 days. This spike in rainfall follows a summer filled with consistent, albeit lower, totals in June and July, which recorded 152 mm (6.0 in) and 146 mm (5.7 in) respectively. The transition into August marks a shift towards wetter conditions, likely due to the interplay of climatic patterns bringing more robust storm systems into the region. As summer fades, this increase in moisture contributes to the lush landscape, foreshadowing the gradual descent into the wetter autumn months. Overall, August not only delivers the peak rainfall of the year but also emphasizes a pattern of escalating precipitation leading into the fall season.

August Precipitation Trends in Romanshorn

The chart displays monthly precipitation patterns in Romanshorn, 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 Romanshorn, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec10983987614215214617511711873131
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Romanshorn

In Romanshorn, Switzerland, August brings a noticeable shift in humidity levels, settling at 80%, the lowest for the summer months. Following a gradual decline from January's high of 92%, the humidity dips steadily as the seasons progress, reflecting the transition from the lush, moisture-laden winter months to the warmer summer period. Interestingly, August's humidity is aligned with May and slightly lower than the July peak of 83%, hinting at a brief respite before the autumn months ramp up the moisture again. As September approaches, the humidity rises again to 83%, signaling the onset of fall and a return to the heavier air that characterizes the later months. This ebb and flow of humidity not only influences the local climate but also lends a unique rhythm to life in this scenic lakeside town.

August Average Humidity in Romanshorn

This chart illustrates the average monthly humidity levels in Romanshorn, 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 Romanshorn 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 Romanshorn

In August, Romanshorn experiences a UV Index of 8, categorized as very high, which signifies that sun exposure can quickly lead to skin damage. With a burn time of just 15 minutes, it's vital for residents and visitors to take protective measures during peak hours. This month, the UV Index reflects a slight decrease from the previous months of June and July, which each registered a peak of 9, yet it remains a significant concern for outdoor activities. The data clearly illustrates a trend where summer months intensify UV radiation, necessitating greater vigilance against sun exposure. For further details, you can explore more at Romanshorn UV Index.

Maximum UV Index Levels in Romanshorn for August

The chart shows the monthly maximum UV Index (UVI) for Romanshorn 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 Romanshorn typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986431
Data source: Romanshorn 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 Romanshorn

In Romanshorn, Switzerland, the month of August continues the trend of abundant sunshine, offering 373 hours of golden rays. Following the peak of July, which boasts an impressive 405 hours, August maintains a strong presence, albeit with slightly fewer hours. This summer warmth is reflective of a gradual increase in daylight that begins in January with a mere 154 hours and steadily climbs to a glorious zenith in mid-summer. As the seasons transition into autumn, the sunlight begins to wane, with September and October recording 315 and 276 hours respectively. Overall, August serves as a delightful bridge between the peak of summer and the tranquil onset of fall, inviting both locals and visitors to savor the lingering warmth.

Monthly Sunshine Duration in Romanshorn: August Highlighted

The August sunshine duration represents the total number of hours Romanshorn 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.
JanFebMarAprMayJunJulAugSepOctNovDec154h223h291h348h359h381h405h373h315h276h213h176h
Data source: Romanshorn August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Romanshorn During August

In August, Romanshorn experiences a 34% chance of sunny weather, a figure consistent with the previous summer months. Notably, this percentage reflects a slight dip compared to the sunnier days seen earlier in the year, particularly from February to April when the sunshine probabilities climb higher, peaking at 48% in April. As the summer unfolds into August, residents and visitors alike can expect a blend of bright days interspersed with the occasional clouds, setting the stage for a delightful late-summer experience along Lake Constance. Following August, the chance of sun increases again in September to 44%, hinting at a transitional phase as the region enters autumn with its picturesque colors.

Percentage of Sunny Days in August in Romanshorn

The chart illustrates the percentage of sunny days in Romanshorn 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 Romanshorn experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec17%41%42%48%34%34%33%34%44%35%26%28%
Data source: Romanshorn August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Romanshorn in August

In Romanshorn, Switzerland, the daylight duration peaks during the summer months, with June, July, and August basking in around 15 hours of sunlight each. As the height of summer gives way to August's 14 hours of daylight, one can feel the gradual shift toward autumn as the days begin to shorten. The transition is evident as daylight dips to 12 hours in September, continuing its descent through the cooler months. This trend highlights the comforting warmth and brightness of summer, which gives way to the more subdued light of early autumn, offering a captivating rhythm to the changing seasons.

Average Daylight Hours in Romanshorn for August

The chart illustrates the variation in daylight duration in Romanshorn throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 54m10h 14m11h 55m13h 39m15h 8m15h 54m15h 30m14h 10m12h 31m10h 48m9h 16m8h 28m
Data source: Romanshorn daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Romanshorn

In Romanshorn, Switzerland, the month of August brings a gentle breeze, with an average wind speed of just 1.6 m/s (4 mph). This consistent softness is part of a broader trend observed throughout the summer months, where wind speeds linger around the lower end of the spectrum. Notably, August mirrors the calming calm of July and June, where breezes also hover around the 1.6 m/s mark. As the year progresses into September, a slight dip to 1.4 m/s (3 mph) indicates a seasonal shift. Overall, the August winds in Romanshorn reflect a serene and stable period in the yearly climate cycle, emphasizing a tranquil atmosphere perfect for summer evenings by the lake.

Average August Wind Speed in Romanshorn

The chart displays monthly wind speed patterns in Romanshorn, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.01.81.81.92.31.61.61.6 m/s1.41.61.71.9
Data source: Romanshorn August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Romanshorn Compares to Other Months

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

August and January present stark contrasts in weather. August typically sees temperatures ranging from a cool 9°C (49°F) at night to a warm 33°C (91°F) during the day, with an average of about 19°C (67°F). This month also experiences significant precipitation, averaging 175 mm (6.9 in) over 14 days, coupled with a high humidity level of 80%. In contrast, January is marked by much colder conditions, where temperatures can drop as low as -16°C (3°F), with an average of 0°C (33°F) and a maximum of 13°C (55°F). Precipitation is lower in January at 109 mm (4.3 in) over 12 days, but humidity is notably high at 92%. For a more detailed look at January weather in this region, see Romanshorn weather in January.

August and February present stark contrasts in weather conditions. In August, temperatures range from a mild 9°C (49°F) at night to a scorching 33°C (91°F) during the day, with an average of 19°C (67°F). The month sees significant precipitation, totaling 175 mm (6.9 in) across 14 days, and the humidity hovers around 80%. In contrast, February is much colder, with temperatures dropping to a minimum of -13°C (9°F) and peaking at a maximum of 16°C (62°F), averaging just 2°C (37°F). February experiences considerably less precipitation, at 83 mm (3.3 in) over 12 days, but the humidity remains high at 89%. For more on February weather specifics, check out Romanshorn weather in February.

When comparing the weather in August and March, significant differences emerge. August typically boasts a much warmer climate, with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 33°C (91°F) and an average of 19°C (67°F). In contrast, March experiences much colder conditions, with temperatures dipping as low as -14°C (6°F) and only reaching an average of 5°C (42°F). Additionally, August sees higher humidity levels at 80%, paired with substantial rainfall of 175 mm (6.9 in) over 14 days, while March has even more rainy days—16 in total—with less precipitation at 98 mm (3.8 in) and a humidity of 87%. For more detailed information on March weather, you can visit Romanshorn weather in March.

When comparing the weather in August and April, notable differences emerge. August typically boasts a warm range of temperatures, with a minimum of 9°C (49°F) and maximum reaching up to 33°C (91°F), averaging around 19°C (67°F). In contrast, April presents a cooler climate, with temperatures ranging from a chilly -4°C (24°F) to a comfortable 24°C (76°F) and an average of 9°C (49°F).

Precipitation also plays a significant role in the seasonal contrast; August sees 175 mm (6.9 in) of rainfall over approximately 14 days, while April has considerably less, totaling 76 mm (3.0 in) over about 9 days. Moreover, humidity levels are quite high in both months, with April at 84% and August at 80%. For more specific insights, you can visit Romanshorn weather in April.

The weather in August typically features warmer temperatures, with averages around 19°C (67°F) and maximums reaching 33°C (91°F), compared to May's cooler averages of 13°C (56°F) and a maximum of 30°C (85°F). Both months experience high humidity levels of 80%, but August sees more significant rainfall, accumulating about 175 mm (6.9 in) over 14 days, while May has a slightly lower precipitation total of 142 mm (5.6 in) across 16 days. For a closer look at May's weather, you can explore Romanshorn weather in May.

August and June share similar maximum temperatures, both reaching up to 33°C (91°F), but August typically experiences slightly warmer nights with average minimum temperatures of 9°C (49°F), compared to June's 6°C (43°F). The overall average temperature in August is marginally higher at 19°C (67°F), compared to June's 18°C (65°F). Precipitation levels are relatively close, with August receiving 175 mm (6.9 in) over 14 days and June recording 152 mm (6.0 in) over 15 days. Humidity levels also remain high in both months, measuring 80% in August and 82% in June. For more detailed information about June weather, you can check Romanshorn weather in June.

In comparing the weather of August and July, both months exhibit similar average temperatures, hovering around 19°C (67°F). However, August experiences a slightly wider range, with minimum temperatures dropping to 9°C (49°F) and maximums reaching 33°C (91°F). In contrast, July maintains a minimum temperature of 11°C (51°F) and a maximum of 32°C (90°F). Precipitation is higher in August at 175 mm (6.9 in) over 14 days, compared to July's 146 mm (5.7 in) across 16 days. Additionally, humidity levels are slightly lower in August at 80%, while July sees a higher 83% humidity. For more details on July's weather, you can check Romanshorn weather in July.

August and September present a noticeable shift in weather patterns. In August, temperatures range from a minimum of 9°C (49°F) to a maximum of 33°C (91°F), averaging around 19°C (67°F). This month is characterized by higher precipitation at 175 mm (6.9 in) over 14 days, alongside a humidity level of 80%. In contrast, September experiences cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 26°C (80°F), averaging 15°C (59°F). The precipitation decreases to 117 mm (4.6 in) over 12 days, while humidity rises slightly to 83%. For those interested in more details about September weather specifics, check out Romanshorn weather in September.

August and October present notably different weather patterns. In August, temperatures range from a minimum of 9°C (49°F) to a maximum of 33°C (91°F), with an average of 19°C (67°F). The month is characterized by higher humidity at 80% and a significant amount of precipitation, totaling 175 mm (6.9 in) over approximately 14 days. In contrast, October sees cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 22°C (72°F), averaging 11°C (51°F). Although October has slightly less precipitation at 118 mm (4.7 in) over 13 days, the humidity is higher at 90%. For more details on October's weather specifics, check out Romanshorn weather in October.

August and November display strikingly contrasting weather patterns. In August, temperatures range from a minimum of 9°C (49°F) to a maximum of 33°C (91°F), creating a warm and humid atmosphere with an average of 19°C (67°F). However, November sees a significant drop in temperatures, with a minimum of -2°C (28°F) and an average of just 5°C (42°F), peaking at 20°C (68°F). While August is characterized by higher humidity at 80% and substantial precipitation totaling 175 mm (6.9 in) over 14 days, November experiences lower rainfall at 73 mm (2.9 in) over 11 days, but a higher humidity level at 88%. For more insights into November weather specifics, visit Romanshorn weather in November.

August and December in Romanshorn present contrasting weather experiences. August features a much warmer climate with temperatures ranging from a minimum of 9°C (49°F) to a blistering maximum of 33°C (91°F), making it a peak summer month. It also sees significant precipitation, with 175 mm (6.9 in) falling over 14 days, and an average humidity of 80%. In contrast, December brings a chilly winter atmosphere, with temperatures dropping to a minimum of -9°C (16°F) and peaking at a mere 13°C (55°F). Although December experiences slightly less precipitation at 131 mm (5.2 in) across 19 days, the humidity is higher at 90%, contributing to a damp and frosty environment. For more detailed information, you can check the Romanshorn weather in December.

Compare Romanshorn's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Romanshorn

August in Romanshorn is a month that stands out with its warm embrace, where temperatures can soar to a delightful peak, often reaching the high 30s°C (90s°F). This warmth sets it apart from the cooler, crisper days of previous months. However, the month is not devoid of its character; with nearly half the days experiencing precipitation, the humidity lingers around an elevated 80%, adding a balmy feel to the air. Whether you’re basking in the sun or seeking shelter from an unexpected shower, August offers a unique blend of summer heat and occasional refreshment, making it a distinct time in Romanshorn’s yearly climate tapestry. For a comprehensive look at how Romanshorn's climate evolves throughout the year, visit Romanshorn Climate.