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August Weather in Pomona, United States

Last updated: June 24, 2025

In August, the average temperature in Pomona, United States is a warm 25°C (77°F). However, temperatures can vary quite a bit, with a minimum of 13°C (57°F) and a maximum of 36°C (97°F). Be prepared for occasional rain, as the area receives approximately 109 mm (4.3 in) of precipitation over 11 days. The average humidity hovers around 69%, making it feel quite comfortable.

August Temperature in Pomona

In August in Pomona, the average temperature is 25°C (77°F). The maximum can reach 36°C (97°F), while the minimum can drop as low as 13°C (57°F). This varied climate makes it a great time for travelers to experience both warm days and cooler evenings.

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

The chart illustrates August temperature patterns in Pomona, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pomona, August typically has an average temperature of 25°C (77°F), with highs reaching up to 36°C (97°F) and lows dropping to around 13°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec363950566675797773594642
Data source: Temperature data for Pomona 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 Pomona

In Pomona in August, the precipitation amount is 109 mm (4.3 in), occurring over a span of 11 days.

August Precipitation Trends in Pomona

The chart displays monthly precipitation patterns in Pomona, 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 Pomona, August typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec841131531631877977109501277677
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Pomona

In Pomona in August humidity is 69%. With an average temperature of 25°C (77°F), this humidity feels like a warm, heavy blanket enveloping you, making every step feel slightly sluggish and encouraging frequent breaks to enjoy refreshing beverages and cool breezes.

August Average Humidity in Pomona

This chart illustrates the average monthly humidity levels in Pomona, 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 Pomona is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%81%80%80%83%83%76%69%68%72%83%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Pomona

In Pomona 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 Pomona.

Maximum UV Index Levels in Pomona for August

The chart shows the monthly maximum UV Index (UVI) for Pomona 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 Pomona typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710111111109753
Data source: Pomona 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 Pomona Compares to Other Months

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

This table compares monthly weather conditions in Pomona, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)84 mm (3.3 inches)83%moderate
February Weather4°C (39°F)113 mm (4.4 inches)81%high
March Weather10°C (50°F)153 mm (6.0 inches)80%high
April Weather13°C (56°F)163 mm (6.4 inches)80%very high
May Weather19°C (67°F)187 mm (7.4 inches)83%extreme
June Weather24°C (75°F)79 mm (3.1 inches)83%extreme
July Weather26°C (79°F)77 mm (3.0 inches)76%extreme
August Weather25°C (77°F)109 mm (4.3 inches)69%very high
September Weather23°C (73°F)50 mm (2.0 inches)68%very high
October Weather15°C (60°F)127 mm (5.0 inches)72%high
November Weather8°C (46°F)76 mm (3.0 inches)83%moderate
December Weather5°C (42°F)77 mm (3.0 inches)86%moderate

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