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August Weather in Saint Paul, United States

Last updated: June 24, 2025

In August, the average temperature in Saint Paul, United States is a pleasant 22°C (71°F). Expect a minimum of 11°C (53°F) and a maximum of around 31°C (88°F). However, be prepared for some rain, as 131 mm (5.1 in) of precipitation can fall over 15 days during the month, accompanied by an average humidity of 66%.

August Temperature in Saint Paul

In August in Saint Paul, the average temperature is 22°C (71°F). Maximum temperatures can reach 31°C (88°F) while minimums can drop to 11°C (53°F). This comfortable climate makes it an ideal time for travelers to explore and enjoy the sights.

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

The chart illustrates August temperature patterns in Saint Paul, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Paul, August typically has an average temperature of 22°C (71°F), with highs reaching up to 31°C (88°F) and lows dropping to around 11°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec364146546469737167584440
Data source: Temperature data for Saint Paul 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 Paul

In Saint Paul in August, the precipitation amount is 131 mm (5.1 in) over a span of 15 days.

August Precipitation Trends in Saint Paul

The chart displays monthly precipitation patterns in Saint Paul, 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 Paul, August typically receives around 131 mm (5.1 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec9116412615512914911413111812877122
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Saint Paul

In Saint Paul in August, humidity is 66%. With an average temperature of 22°C (71°F), this humidity feels like a warm blanket, making travel comfortable yet slightly sticky, necessitating frequent breaks to hydrate and seek shade.

August Average Humidity in Saint Paul

This chart illustrates the average monthly humidity levels in Saint Paul, 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 Paul is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%84%83%83%79%66%68%78%89%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Saint Paul

In Saint Paul in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Saint Paul.

Maximum UV Index Levels in Saint Paul for August

The chart shows the monthly maximum UV Index (UVI) for Saint Paul 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 Paul typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36810111111109753
Data source: Saint Paul 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 Paul Compares to Other Months

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

This table compares monthly weather conditions in Saint Paul, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)91 mm (3.6 inches)87%moderate
February Weather5°C (42°F)164 mm (6.4 inches)87%high
March Weather8°C (47°F)126 mm (5.0 inches)86%very high
April Weather12°C (54°F)155 mm (6.1 inches)84%very high
May Weather18°C (64°F)129 mm (5.1 inches)83%extreme
June Weather21°C (69°F)149 mm (5.8 inches)83%extreme
July Weather23°C (73°F)114 mm (4.5 inches)79%extreme
August Weather22°C (71°F)131 mm (5.1 inches)66%very high
September Weather20°C (68°F)118 mm (4.6 inches)68%very high
October Weather14°C (58°F)127 mm (5.0 inches)78%high
November Weather7°C (44°F)77 mm (3.0 inches)89%moderate
December Weather4°C (40°F)122 mm (4.8 inches)86%moderate

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