August Weather in Mountain View, United States

Last updated: June 24, 2025

In Mountain View, United States, the average temperature in August is a warm 26°C (79°F). Expect a range between a cool 16°C (61°F) and a hot 37°C (99°F). This month also sees about 116 mm (4.6 in) of precipitation spread over 13 days, contributing to an average humidity of 74%. Stay prepared for both sunshine and showers!

August Temperature in Mountain View

In August in Mountain View, the average temperature is 26°C (79°F). Maximums can reach 37°C (99°F), while minimums can dip as low as 16°C (61°F). This variety in temperatures makes it a perfect time for travelers to enjoy both the warm days and cooler evenings.

August Weather in Mountain View: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Mountain View, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mountain View, August typically has an average temperature of 26°C (79°F), with highs reaching up to 37°C (99°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec394252586977817874624945
Data source: Temperature data for Mountain View 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 Mountain View

In Mountain View in August, the total precipitation amount reaches 116 mm (4.6 in) over the course of 13 days.

August Precipitation Trends in Mountain View

The chart displays monthly precipitation patterns in Mountain View, 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 Mountain View, August typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec7813113814417410089116821037797
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Mountain View

In Mountain View in August humidity is 74%. With an average temperature of 26°C (79°F), this humidity feels like a warm, enveloping blanket, making it essential for travelers to stay hydrated and take frequent breaks in shaded areas to fully enjoy the vibrant surroundings.

August Average Humidity in Mountain View

This chart illustrates the average monthly humidity levels in Mountain View, 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 Mountain View is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%81%81%83%83%81%74%71%76%84%88%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Mountain View

In Mountain View 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 Mountain View.

Maximum UV Index Levels in Mountain View for August

The chart shows the monthly maximum UV Index (UVI) for Mountain View 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 Mountain View typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109753
Data source: Mountain View 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 Mountain View Compares to Other Months

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

This table compares monthly weather conditions in Mountain View, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)78 mm (3.1 inches)84%moderate
February Weather6°C (42°F)131 mm (5.2 inches)83%high
March Weather11°C (53°F)137 mm (5.4 inches)81%very high
April Weather15°C (59°F)144 mm (5.7 inches)81%very high
May Weather20°C (69°F)174 mm (6.9 inches)83%extreme
June Weather25°C (77°F)100 mm (3.9 inches)83%extreme
July Weather27°C (81°F)89 mm (3.5 inches)81%extreme
August Weather26°C (79°F)116 mm (4.6 inches)74%very high
September Weather23°C (75°F)82 mm (3.2 inches)71%very high
October Weather17°C (62°F)103 mm (4.1 inches)76%high
November Weather9°C (49°F)77 mm (3.0 inches)84%moderate
December Weather7°C (45°F)97 mm (3.8 inches)88%moderate

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