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August Weather in Gossau, Switzerland

Last updated: August 27, 2025

In August, the average temperature in Gossau, Switzerland hovers around 19°C (66°F). Expect a range of 9°C (49°F) to 33°C (91°F), highlighting the variability of the climate. During this month, total precipitation amounts to 194 mm (7.7 in) spread over 17 days, contributing to an average humidity of 80%. Whether you're planning outdoor activities or cozy indoor time, be prepared for this dynamic weather!

August Temperature in Gossau

In August in Gossau, the average temperature is 19°C (66°F). Maximum temperatures can reach 33°C (91°F), while minimums can drop as low as 9°C (49°F). This climate offers a pleasant experience for travelers looking to enjoy mild weather with the possibility of warm days and cooler evenings.

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

The chart illustrates August temperature patterns in Gossau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gossau, August typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (91°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec333642495565666659514136
Data source: Temperature data for Gossau 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 Gossau

In Gossau in August, the precipitation amount is 194 mm (7.7 in) over a span of 17 days.

August Precipitation Trends in Gossau

The chart displays monthly precipitation patterns in Gossau, 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 Gossau, August typically receives around 194 mm (7.7 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec106851007914716915919512811972135
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Gossau

In Gossau in August humidity is 80%. With an average temperature of 19°C (66°F), this humidity feels like a warm, thick blanket wrapping around you, making outdoor activities feel more strenuous and sticky, which can ultimately dampen the experience of traveling.

August Average Humidity in Gossau

This chart illustrates the average monthly humidity levels in Gossau, 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 Gossau is approximately 80%, 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 Gossau

In Gossau in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Gossau.

Maximum UV Index Levels in Gossau for August

The chart shows the monthly maximum UV Index (UVI) for Gossau 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 Gossau typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Gossau 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.

How August Weather in Gossau Compares to Other Months

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

This table compares monthly weather conditions in Gossau, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)106 mm (4.2 inches)92%low
February Weather2°C (37°F)85 mm (3.3 inches)89%moderate
March Weather5°C (42°F)100 mm (3.9 inches)87%moderate
April Weather9°C (49°F)79 mm (3.1 inches)84%high
May Weather13°C (56°F)147 mm (5.8 inches)80%very high
June Weather18°C (65°F)168 mm (6.6 inches)82%very high
July Weather19°C (67°F)159 mm (6.3 inches)83%very high
August Weather19°C (66°F)194 mm (7.7 inches)80%very high
September Weather15°C (59°F)128 mm (5.0 inches)83%high
October Weather10°C (51°F)119 mm (4.7 inches)90%moderate
November Weather5°C (42°F)72 mm (2.8 inches)88%low
December Weather2°C (36°F)135 mm (5.3 inches)90%low

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