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August Weather in Bay City, United States

Last updated: June 24, 2025

In August, the average temperature in Bay City, United States hovers around 15°C (60°F). Expect a minimum of 11°C (53°F) and a pleasant maximum of 25°C (77°F). This month also brings an average precipitation of 17 mm (0.7 in) over approximately 4 days, with a comfortable average humidity of 74%.

August Temperature in Bay City

In August in Bay City, the average temperature is 15°C (60°F). The maximum can reach 25°C (77°F) and the minimum can be as low as 11°C (53°F). This pleasant climate makes Bay City an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

August Weather in Bay City: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Bay City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bay City, August typically has an average temperature of 15°C (60°F), with highs reaching up to 25°C (77°F) and lows dropping to around 11°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec464446485256596059545046
Data source: Temperature data for Bay City 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 Bay City

In Bay City in August, the precipitation amount is 17 mm (0.7 in) over a span of 4 days.

August Precipitation Trends in Bay City

The chart displays monthly precipitation patterns in Bay City, 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 Bay City, August typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec2702441921577767161896176274301
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Bay City

In Bay City in August humidity is 74%. With an average temperature of 15°C (60°F), this humidity feels like a warm embrace that can make outdoor activities feel slightly stifling, so travelers should be prepared to hydrate frequently and take breaks in the shade.

August Average Humidity in Bay City

This chart illustrates the average monthly humidity levels in Bay City, 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 Bay City is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%85%83%83%84%82%74%71%81%87%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Bay City

In Bay City 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 Bay City.

Maximum UV Index Levels in Bay City for August

The chart shows the monthly maximum UV Index (UVI) for Bay City 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 Bay City typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23569101087532
Data source: Bay City 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 Bay City Compares to Other Months

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

This table compares monthly weather conditions in Bay City, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)270 mm (10.6 inches)85%low
February Weather7°C (44°F)244 mm (9.6 inches)84%moderate
March Weather8°C (46°F)192 mm (7.6 inches)85%moderate
April Weather9°C (49°F)157 mm (6.2 inches)83%high
May Weather11°C (53°F)77 mm (3.0 inches)83%very high
June Weather14°C (57°F)67 mm (2.6 inches)83%very high
July Weather15°C (59°F)16 mm (0.6 inches)82%very high
August Weather15°C (60°F)17 mm (0.7 inches)74%very high
September Weather15°C (59°F)96 mm (3.8 inches)71%high
October Weather12°C (54°F)176 mm (6.9 inches)81%moderate
November Weather10°C (50°F)274 mm (10.8 inches)87%moderate
December Weather8°C (46°F)301 mm (11.8 inches)87%low

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