nomadseason

August Weather in Palo Alto, United States

Last updated: June 24, 2025

In August in Palo Alto, United States, the average temperature hovers around 22°C (73°F). Visitors can expect a minimum chill of 11°C (52°F) and a warm maximum of 34°C (93°F). With an average humidity of 62%, it's a comfortable time to explore. However, be prepared for precipitation—approximately 155 mm (6.1 in) over 15 days, so a light raincoat might be a good companion!

August Temperature in Palo Alto

In August in Palo Alto, the average temperature is 22°C (73°F). Maximums can reach 34°C (93°F), while minimums can drop as low as 11°C (52°F). This makes Palo Alto a pleasant destination for travelers seeking comfortable weather.

August Weather in Palo Alto: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Palo Alto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Palo Alto, August typically has an average temperature of 22°C (73°F), with highs reaching up to 34°C (93°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec303339506169757266564135
Data source: Temperature data for Palo Alto generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Palo Alto

In Palo Alto in August, the precipitation amount is 155 mm (6.1 in) over a period of 15 days.

August Precipitation Trends in Palo Alto

The chart displays monthly precipitation patterns in Palo Alto, 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 Palo Alto, August typically receives around 155 mm (6.1 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec74106961111331181631551171179993
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Palo Alto

In Palo Alto in August, humidity is 62%. With an average temperature of 22°C (73°F), this humidity feels like a warm embrace, making it perfect for leisurely strolls but slightly uncomfortable for intense outdoor activities.

August Average Humidity in Palo Alto

This chart illustrates the average monthly humidity levels in Palo Alto, 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 Palo Alto is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%85%83%75%74%65%62%66%79%87%85%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Palo Alto

In Palo Alto 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 Palo Alto.

Maximum UV Index Levels in Palo Alto for August

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

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

This table compares monthly weather conditions in Palo Alto, 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)87%moderate
February Weather1°C (33°F)106 mm (4.2 inches)85%moderate
March Weather4°C (39°F)96 mm (3.8 inches)85%high
April Weather10°C (50°F)111 mm (4.4 inches)83%very high
May Weather16°C (61°F)133 mm (5.2 inches)75%very high
June Weather21°C (69°F)118 mm (4.6 inches)73%very high
July Weather24°C (75°F)163 mm (6.4 inches)65%very high
August Weather22°C (73°F)155 mm (6.1 inches)62%very high
September Weather19°C (67°F)117 mm (4.6 inches)66%very high
October Weather13°C (57°F)117 mm (4.6 inches)79%high
November Weather5°C (42°F)99 mm (3.9 inches)87%moderate
December Weather1°C (35°F)93 mm (3.7 inches)85%low

Compare Palo Alto's Climate with Cities Worldwide