October weather forecast
Los Altos, CA

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Weather in October

October, the same as September, in Los Altos, California, is another pleasant autumn month, with an average temperature ranging between max 71.8°F (22.1°C) and min 54°F (12.2°C).

Temperature

During the shift to October, a minor reduction in average high-temperature is observed, shifting from a warm 77.9°F (25.5°C) in September to an agreeable 71.8°F (22.1°C). Throughout the month of October, Los Altos sees a steady low-temperature average of 54°F (12.2°C).

Humidity

July, September and October, with an average relative humidity of 63%, are the least humid months in Los Altos, California.

Rainfall

In Los Altos, during October, the rain falls for 2.8 days and regularly aggregates up to 0.12" (3mm) of precipitation. Throughout the year, there are 53.1 rainfall days, and 4.41" (112mm) of precipitation is accumulated.

Daylight

In Los Altos, the average length of the day in October is 11h and 13min.
On the first day of October, sunrise is at 7:04 am and sunset at 6:51 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 6:11 pm PDT.

Sunshine

In October, the average sunshine in Los Altos is 7.1h.

UV index

The average daily maximum UV index in October in Los Altos is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 5 in October interprets into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

What are the temperatures in Los Altos in October?

In October, in Los Altos, the average high-temperature is 71.8°F (22.1°C), and the average low-temperature is 54°F (12.2°C).

What is the least humid month in Los Altos?

July, September and October, with an average relative humidity of 63%, are the least humid months.

What is the average humidity in October in Los Altos?

In Los Altos, the average relative humidity in October is 63%.

How much does it rain in Los Altos in October?

In Los Altos, California, during October, the rain falls for 2.8 days and regularly aggregates up to 0.12" (3mm) of precipitation.

How many hours of daylight does Los Altos have in October?

In October, the average day length is 11h and 13min.

When is the sunrise / sunset in October in Los Altos?

On the first day of October in Los Altos, California, sunrise is at 7:04 am and sunset at 6:51 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 6:11 pm PDT.

How many hours of sunshine does Los Altos have in October?

In Los Altos, the average sunshine duration in October is 7.1h.

How high is the UV index in October in Los Altos?

The average daily maximum UV index in October is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Los Altos, CA

Average temperature in October - Los Altos, CA
  • Average high temperature in October: 71.8°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (56.5°F).

  • Average low temperature in October: 54°F

The month with the highest average low temperature is August (56.8°F).
The coldest month (with the lowest average low temperature) is December (44.1°F).

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Average pressure in October
Los Altos, CA

Average pressure in October - Los Altos, CA
  • Average pressure in October: 29.98"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June and September (29.92"Hg).

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Average wind speed in October
Los Altos, CA

Average wind speed in October - Los Altos, CA
  • Average wind speed in October: 4.7mph

The windiest months (with the highest average wind speed) are April and May (6.2mph).
The calmest months (with the lowest average wind speed) are August, September, October and November (4.7mph).

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Average humidity in October
Los Altos, CA

Average humidity in October - Los Altos, CA
  • Average humidity in October: 63%

The month with the highest relative humidity is March (73%).
The months with the lowest relative humidity are July, September and October (63%).

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Average rainfall in October
Los Altos, CA

Average rainfall in October - Los Altos, CA
  • Average rainfall in October: 0.12"

The wettest months (with the highest rainfall) are February, March and December (0.83").
The driest months (with the least rainfall) are June, July and August (0.04").

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Average rainfall days in October
Los Altos, CA

Average rainfall days in October - Los Altos, CA
  • Average rainfall days in October: 2.8 days

The month with the highest number of rainy days is March (10 days).
The month with the least rainy days is August (0.4 days).

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Average daylight in October /
Average sunshine in October
Los Altos, CA

Average daylight in October / Average sunshine in October - Los Altos, CA
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in October: 7h and 1min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in October
Los Altos, CA

Average sunshine days in October - Los Altos, CA
  • Average sunshine days in October: 27.1 days

The months with the most sunshine days are July and August (29.8 days).
The month with the least sunshine days is March (19.4 days).

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Average UV index in October
Los Altos, CA

Average UV index in October - Los Altos, CA
  • Average UV index in October: 5

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are February, November and December (UV index 3).

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Average cloud cover in October
Los Altos, CA

Average cloud cover in October - Los Altos, CA
  • Average cloud cover in October: 16

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 7).

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Average visibility in October
Los Altos, CA

Average visibility in October - Los Altos, CA
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Los Altos, California, USA

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