October weather forecast
Monte Sereno, CA

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Weather in October

October, the same as September, in Monte Sereno, California, is another pleasant autumn month, with an average temperature varying between 53.1°F (11.7°C) and 72.3°F (22.4°C).

Temperature

The shift from September to October includes a minor decrease in the average high-temperature, lightly dropping from a moderately hot 78.4°F (25.8°C) to an agreeable 72.3°F (22.4°C). In the month of October, the nighttime temperature dips to a steady average of 53.1°F (11.7°C).

Humidity

In October, the average relative humidity in Monte Sereno is 63%.

Rainfall

In Monte Sereno, during October, the rain falls for 4.5 days and regularly aggregates up to 0.39" (10mm) of precipitation. In Monte Sereno, during the entire year, the rain falls for 68.6 days and collects up to 11.57" (294mm) of precipitation.

Daylight

In Monte Sereno, 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 6:50 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 6:10 pm PDT.

Sunshine

In October, the average sunshine in Monte Sereno is 7.2h.

UV index

In Monte Sereno, the average daily maximum UV index in October is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: In October, the maximum UV index of 4 transforms into these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures in Monte Sereno?

October temperatures in Monte Sereno vary between a high-temperature of 72.3°F (22.4°C) and a low-temperature of 53.1°F (11.7°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in July is appraised at 82.4°F (28°C).

What is the average humidity in October in Monte Sereno?

In Monte Sereno, the average relative humidity in October is 63%.

How many days does it rain in October in Monte Sereno?

In Monte Sereno, California, during October, the rain falls for 4.5 days and regularly aggregates up to 0.39" (10mm) of precipitation.

How many hours of daylight does Monte Sereno have in October?

In October, the average day length in Monte Sereno, California, is 11h and 13min.

What time are sunrise and sunset in October in Monte Sereno?

In October, on the first day of the month, sunrise is at 7:04 am and sunset at 6:50 pm. On the last day of the month, in Monte Sereno, California, sunrise is at 7:32 am and sunset at 6:10 pm PDT.

How long on average sun shines in October in Monte Sereno?

The average sunshine duration in October in Monte Sereno is 7.2h.

How high is the UV index in October in Monte Sereno?

In October, the average daily maximum UV index in Monte Sereno is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's 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
Monte Sereno, CA

Average temperature in October - Monte Sereno, CA
  • Average high temperature in October: 72.3°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is December (56.7°F).

  • Average low temperature in October: 53.1°F

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).

Average pressure in October
Monte Sereno, CA

Average pressure in October - Monte Sereno, 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).

Average wind speed in October
Monte Sereno, CA

Average wind speed in October - Monte Sereno, CA
  • Average wind speed in October: 4.5mph

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest months (with the lowest average wind speed) are August, September, October and November (4.5mph).

Average humidity in October
Monte Sereno, CA

Average humidity in October - Monte Sereno, CA
  • Average humidity in October: 63%

The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and September (62%).

Average rainfall in October
Monte Sereno, CA

Average rainfall in October - Monte Sereno, CA
  • Average rainfall in October: 0.39"

The wettest month (with the highest rainfall) is February (2.2").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in October
Monte Sereno, CA

Average rainfall days in October - Monte Sereno, CA
  • Average rainfall days in October: 4.5 days

The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (0.9 days).

Average daylight in October /
Average sunshine in October
Monte Sereno, CA

Average daylight in October / Average sunshine in October - Monte Sereno, 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 42min).

  • Average sunshine in October: 7h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in October
Monte Sereno, CA

Average sunshine days in October - Monte Sereno, CA
  • Average sunshine days in October: 24.9 days

The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (17.3 days).

Average UV index in October
Monte Sereno, CA

Average UV index in October - Monte Sereno, CA
  • Average UV index in October: 4

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

Average cloud cover in October
Monte Sereno, CA

Average cloud cover in October - Monte Sereno, CA
  • Average cloud cover in October: 15

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 6).

Average visibility in October
Monte Sereno, CA

Average visibility in October - Monte Sereno, 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).

Monte Sereno, California, USA

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