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August Weather in Union City, United States

Last updated: June 24, 2025

In Union City, United States, the average temperature in August reaches a pleasant 23°C (73°F). Expect pleasant variability, with lows dipping to 11°C (51°F) and highs soaring up to 32°C (90°F). Rainfall is moderate, averaging 107 mm (4.2 in) over 12 days, while humidity lingers around a comfortable 78%.

August Temperature in Union City

In August in Union City, the average temperature is 23°C (73°F), with maximums reaching up to 32°C (90°F) and minimums dropping to as low as 11°C (51°F). This moderate climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates August temperature patterns in Union City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Union City, August typically has an average temperature of 23°C (73°F), with highs reaching up to 32°C (90°F) and lows dropping to around 11°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec293241516372757368574135
Data source: Temperature data for Union 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 Union City

In Union City in August, the precipitation amount is 107 mm (4.2 in) spread over 12 days.

August Precipitation Trends in Union City

The chart displays monthly precipitation patterns in Union 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 Union City, August typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec749610710013812711010781998874
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Union City

In Union City in August, humidity is 78%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor activities a little challenging but still enjoyable for travelers who appreciate a tropical atmosphere.

August Average Humidity in Union City

This chart illustrates the average monthly humidity levels in Union 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 Union City is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Union City

In Union City 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 City.

Maximum UV Index Levels in Union City for August

The chart shows the monthly maximum UV Index (UVI) for Union 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 Union City typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Union 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 Union City Compares to Other Months

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

This table compares monthly weather conditions in Union City, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)74 mm (2.9 inches)88%moderate
February Weather0°C (33°F)96 mm (3.8 inches)87%moderate
March Weather5°C (42°F)107 mm (4.2 inches)87%high
April Weather11°C (51°F)99 mm (3.9 inches)87%very high
May Weather17°C (63°F)138 mm (5.4 inches)81%very high
June Weather22°C (72°F)127 mm (5.0 inches)82%very high
July Weather24°C (76°F)110 mm (4.3 inches)81%very high
August Weather23°C (73°F)107 mm (4.2 inches)78%very high
September Weather20°C (69°F)81 mm (3.2 inches)78%very high
October Weather14°C (57°F)99 mm (3.9 inches)82%high
November Weather5°C (41°F)88 mm (3.5 inches)89%moderate
December Weather2°C (35°F)74 mm (2.9 inches)86%low

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