October weather forecast
San Quentin, CA

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Weather in October

October, the same as September, in San Quentin, California, is an agreeable autumn month, with an average temperature fluctuating between 54.3°F (12.4°C) and 68.9°F (20.5°C).

Temperature

San Quentin experiences a recorded average high-temperature of a still agreeable 68.9°F (20.5°C) in October, closely aligned with September's 72.3°F (22.4°C). An average low-temperature of 54.3°F (12.4°C) is recorded during the nights in October in San Quentin.

Humidity

With an average relative humidity of 68%, October is the least humid month in San Quentin.

Rainfall

In San Quentin, California, in October, during 2.6 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. In San Quentin, California, during the entire year, the rain falls for 48 days and collects up to 3.94" (100mm) of precipitation.

Daylight

In October, the average length of the day in San Quentin is 11h and 12min.
On the first day of the month, sunrise is at 7:06 am and sunset at 6:52 pm. On the last day of October, in San Quentin, sunrise is at 7:35 am and sunset at 6:11 pm PDT.

Sunshine

In October, the average sunshine is 6.8h.

UV index

In October, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 4 in October transforms into this advice:
Ensure safety - Recommendations to avert sunburn are presented. To protect against the Sun's most potent rays, avoid direct exposure around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

Frequently asked questions

What are the temperatures in San Quentin in October?

The high-temperature during October is 68.9°F (20.5°C) and the low-temperature is 54.3°F (12.4°C).

What is the least humid month in San Quentin?

October is the least humid month in San Quentin, California, with an average relative humidity of 68%.

What is the average humidity in October in San Quentin?

In October, the average relative humidity in San Quentin, California, is 68%.

How much does it rain in San Quentin in October?

In San Quentin, California, in October, it is raining for 2.6 days, with typically 0.12" (3mm) of accumulated precipitation.

How many hours of daylight does San Quentin have in October?

In October, the average day length in San Quentin, California, is 11h and 12min.

When are sunrise and sunset in October in San Quentin?

In October, on the first day of the month, sunrise is at 7:06 am and sunset at 6:52 pm. On the last day of the month, in San Quentin, sunrise is at 7:35 am and sunset at 6:11 pm PDT.

How long on average sun shines in October in San Quentin?

In San Quentin, the average sunshine duration in October is 6.8h.

What is the UV index reading in October in San Quentin?

The average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a moderate health threat 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
San Quentin, CA

Average temperature in October - San Quentin, CA
  • Average high temperature in October: 68.9°F

The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in October: 54.3°F

The month with the highest average low temperature is September (56.1°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).

Average pressure in October
San Quentin, CA

Average pressure in October - San Quentin, 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, August and September (29.92"Hg).

Average wind speed in October
San Quentin, CA

Average wind speed in October - San Quentin, CA
  • Average wind speed in October: 5.5mph

The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).

Average humidity in October
San Quentin, CA

Average humidity in October - San Quentin, CA
  • Average humidity in October: 68%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is October (68%).

Average rainfall in October
San Quentin, CA

Average rainfall in October - San Quentin, CA
  • Average rainfall in October: 0.12"

The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").

Average rainfall days in October
San Quentin, CA

Average rainfall days in October - San Quentin, CA
  • Average rainfall days in October: 2.6 days

The month with the highest number of rainy days is March (8.8 days).
The months with the least rainy days are June and August (1.2 days).

Average daylight in October /
Average sunshine in October
San Quentin, CA

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in October: 6h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in October
San Quentin, CA

Average sunshine days in October - San Quentin, CA
  • Average sunshine days in October: 26.2 days

The month with the most sunshine days is June (26.4 days).
The month with the least sunshine days is March (20.7 days).

Average UV index in October
San Quentin, CA

Average UV index in October - San Quentin, CA
  • Average UV index in October: 4

The months with the highest UV index are April, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in October
San Quentin, CA

Average cloud cover in October - San Quentin, CA
  • Average cloud cover in October: 21

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).

Average visibility in October
San Quentin, CA

Average visibility in October - San Quentin, 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).

San Quentin, California, USA

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