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August Weather in Union, United States

Last updated: June 24, 2025

In August, the average temperature in Union, United States hovers around 24°C (75°F), with a minimum dip to 13°C (56°F) and an occasional peak at 34°C (93°F). Expect about 95 mm (3.7 in) of precipitation spread over 12 days, while the average humidity sits at a comfortable 73%.

August Temperature in Union

In August in Union, the average temperature is 24°C (75°F). Maximum can reach 34°C (93°F) and minimum can be as low as 13°C (56°F). This pleasant climate makes Union an ideal destination for travelers seeking comfortable weather during their visit.

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

The chart illustrates August temperature patterns in Union, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Union, August typically has an average temperature of 24°C (75°F), with highs reaching up to 34°C (93°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec333745546673777570594439
Data source: Temperature data for Union 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 Union

In Union in August, the precipitation amount is 95 mm (3.7 in) over the course of 12 days.

August Precipitation Trends in Union

The chart displays monthly precipitation patterns in Union, 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 Union, August typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec8011013512512614611395879893109
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Union

In Union in August humidity is 73%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making it somewhat uncomfortable for traveling if you're not acclimated, as sweat clings to your skin and limits your energy for exploration.

August Average Humidity in Union

This chart illustrates the average monthly humidity levels in Union, 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 Union is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Union

In Union 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 Union.

Maximum UV Index Levels in Union for August

The chart shows the monthly maximum UV Index (UVI) for Union 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 Union typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Union 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 Union Compares to Other Months

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

This table compares monthly weather conditions in Union, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)80 mm (3.1 inches)88%moderate
February Weather3°C (38°F)110 mm (4.3 inches)88%moderate
March Weather7°C (46°F)135 mm (5.3 inches)87%high
April Weather12°C (55°F)125 mm (4.9 inches)85%very high
May Weather19°C (66°F)126 mm (4.9 inches)81%very high
June Weather23°C (74°F)146 mm (5.7 inches)82%very high
July Weather25°C (78°F)113 mm (4.5 inches)81%very high
August Weather24°C (75°F)95 mm (3.7 inches)73%very high
September Weather21°C (71°F)87 mm (3.4 inches)73%very high
October Weather15°C (59°F)98 mm (3.9 inches)78%high
November Weather7°C (44°F)93 mm (3.7 inches)89%moderate
December Weather4°C (39°F)109 mm (4.3 inches)87%moderate

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