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August Weather in Pleasanton, United States

Last updated: June 24, 2025

In Pleasanton, United States, the average temperature in August hovers around 25°C (77°F), providing a pleasant climate. However, temperatures can range from a cool 13°C (56°F) to a sizzling 36°C (96°F). Expect about 120 mm (4.7 in) of precipitation over 12 days, with an average humidity level of 78%, creating a warm and humid environment perfect for summer activities.

August Temperature in Pleasanton

In August in Pleasanton, the average temperature is 25°C (77°F). Maximums can reach 36°C (96°F), and minimums can be as low as 13°C (56°F). This makes Pleasanton a great destination for travelers seeking warm weather, but be prepared for cooler evenings!

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

The chart illustrates August temperature patterns in Pleasanton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pleasanton, August typically has an average temperature of 25°C (77°F), with highs reaching up to 36°C (96°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec333548556777807773584639
Data source: Temperature data for Pleasanton 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 Pleasanton

In Pleasanton in August, the precipitation amount is 120 mm (4.7 in) over a period of 12 days.

August Precipitation Trends in Pleasanton

The chart displays monthly precipitation patterns in Pleasanton, 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 Pleasanton, August typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec634910711118793129121771064733
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Pleasanton

In Pleasanton in August, humidity is 78%. With an average temperature of 25°C (77°F), this humidity feels like walking through a warm, damp blanket, making travel feel a bit more exhausting and sticky as you navigate the sights.

August Average Humidity in Pleasanton

This chart illustrates the average monthly humidity levels in Pleasanton, 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 Pleasanton is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%78%75%77%82%83%81%78%72%72%84%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Pleasanton

In Pleasanton 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 Pleasanton.

Maximum UV Index Levels in Pleasanton for August

The chart shows the monthly maximum UV Index (UVI) for Pleasanton 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 Pleasanton typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109743
Data source: Pleasanton 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 Pleasanton Compares to Other Months

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

This table compares monthly weather conditions in Pleasanton, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)63 mm (2.5 inches)80%moderate
February Weather2°C (35°F)49 mm (1.9 inches)78%moderate
March Weather9°C (48°F)107 mm (4.2 inches)75%high
April Weather13°C (56°F)111 mm (4.4 inches)77%very high
May Weather19°C (67°F)186 mm (7.3 inches)82%very high
June Weather25°C (78°F)93 mm (3.6 inches)83%extreme
July Weather27°C (81°F)129 mm (5.1 inches)81%extreme
August Weather25°C (77°F)120 mm (4.7 inches)78%very high
September Weather23°C (73°F)77 mm (3.0 inches)72%very high
October Weather15°C (58°F)106 mm (4.2 inches)72%high
November Weather8°C (46°F)47 mm (1.9 inches)84%moderate
December Weather4°C (40°F)33 mm (1.3 inches)86%moderate

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