October Weather in Mountain View, United States

Last updated: June 24, 2025

In October, the average temperature in Mountain View, United States is a pleasant 17°C (62°F). However, be prepared for a range of temperatures; you might experience a chilly minimum of -3°C (27°F) as well as a sweltering maximum of 35°C (96°F). Rain is also a possibility, with average precipitation amounting to 81 mm (3.2 in) over the course of 7 days. Don’t forget to stay comfortable with the average humidity around 71%!

October Temperature in Mountain View

In October in Mountain View, the average temperature is 17°C (62°F). While the maximum can reach 35°C (96°F), the minimum can drop to as low as -3°C (27°F). Be prepared for a wide range of temperatures if you're planning to travel during this time!

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

The chart illustrates October 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, October typically has an average temperature of 17°C (62°F), with highs reaching up to 35°C (96°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec394154607080838275625044
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.

October Precipitation in Mountain View

In Mountain View in October, the precipitation amount is 81 mm (3.2 in) over a period of 7 days.

October Precipitation Trends in Mountain View

The chart displays monthly precipitation patterns in Mountain View, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Mountain View, October typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec3931659414163374478812129
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Mountain View

In Mountain View in October, humidity is 71%. With an average temperature of 17°C (62°F), this humidity feels like a warm embrace that can leave you feeling a bit sticky, making outdoor exploration both refreshing and slightly uncomfortable.

October Average Humidity in Mountain View

This chart illustrates the average monthly humidity levels in Mountain View, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Mountain View is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%76%70%72%82%82%80%72%64%71%81%84%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Mountain View

In Mountain View in October, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Mountain View.

Maximum UV Index Levels in Mountain View for October

The chart shows the monthly maximum UV Index (UVI) for Mountain View in October, 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 October, the maximum UV index in Mountain View typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111112119754
Data source: Mountain View October 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 October 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 October’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 October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)39 mm (1.5 inches)76%moderate
February Weather5°C (41°F)31 mm (1.2 inches)76%high
March Weather12°C (54°F)65 mm (2.6 inches)70%very high
April Weather16°C (60°F)94 mm (3.7 inches)72%very high
May Weather21°C (70°F)141 mm (5.6 inches)82%extreme
June Weather26°C (80°F)63 mm (2.5 inches)82%extreme
July Weather29°C (84°F)37 mm (1.5 inches)80%extreme
August Weather28°C (82°F)44 mm (1.7 inches)72%extreme
September Weather24°C (75°F)78 mm (3.1 inches)64%very high
October Weather17°C (62°F)81 mm (3.2 inches)71%high
November Weather10°C (50°F)21 mm (0.8 inches)81%moderate
December Weather7°C (44°F)29 mm (1.1 inches)84%moderate

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