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August Weather in Saint Joseph, United States

Last updated: June 24, 2025

In August, the average temperature in Saint Joseph, United States hovers around 24°C (75°F), offering a pleasant climate for outdoor activities. Expect minimums dipping to 11°C (53°F) and maximums soaring to 34°C (94°F), providing a range of temperatures to suit your preferences. There's a notable precipitation of 105 mm (4.1 in) over about 10 days, so a light raincoat might come in handy. With an average humidity level of 82%, you'll feel the warmth, making it the perfect time to enjoy all that Saint Joseph has to offer!

August Temperature in Saint Joseph

In August in Saint Joseph, the average temperature is 24°C (75°F), with maximums reaching up to 34°C (94°F) and minimums dropping as low as 11°C (53°F). This pleasant climate makes it an ideal time for outdoor activities and exploring the local attractions.

August Weather in Saint Joseph: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Saint Joseph, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Joseph, August typically has an average temperature of 24°C (75°F), with highs reaching up to 34°C (94°F) and lows dropping to around 11°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec293243526574777470574136
Data source: Temperature data for Saint Joseph 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 Saint Joseph

In Saint Joseph in August, the precipitation amount is 105 mm (4.1 in) over the course of 10 days.

August Precipitation Trends in Saint Joseph

The chart displays monthly precipitation patterns in Saint Joseph, 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 Saint Joseph, August typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec797811211714210387105801177759
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Saint Joseph

In Saint Joseph in August, humidity is 82%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making travel feel sticky and heavy on the skin, often requiring more frequent breaks and hydration.

August Average Humidity in Saint Joseph

This chart illustrates the average monthly humidity levels in Saint Joseph, 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 Saint Joseph is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Saint Joseph

In Saint Joseph in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Saint Joseph.

Maximum UV Index Levels in Saint Joseph for August

The chart shows the monthly maximum UV Index (UVI) for Saint Joseph 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 Saint Joseph typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Saint Joseph 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 Saint Joseph Compares to Other Months

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

This table compares monthly weather conditions in Saint Joseph, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)78 mm (3.1 inches)84%moderate
February Weather0°C (32°F)78 mm (3.1 inches)82%moderate
March Weather6°C (43°F)112 mm (4.4 inches)84%high
April Weather11°C (53°F)117 mm (4.6 inches)83%very high
May Weather18°C (65°F)142 mm (5.6 inches)80%very high
June Weather24°C (75°F)103 mm (4.1 inches)83%extreme
July Weather25°C (78°F)87 mm (3.4 inches)82%very high
August Weather24°C (75°F)105 mm (4.1 inches)82%very high
September Weather21°C (70°F)80 mm (3.2 inches)79%very high
October Weather14°C (58°F)117 mm (4.6 inches)79%high
November Weather5°C (42°F)77 mm (3.0 inches)88%moderate
December Weather2°C (36°F)59 mm (2.3 inches)87%moderate

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