October weather forecast and climate
San Quentin, CA

Weather in October

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

Temperature

In San Quentin, the average high-temperature is relatively the same as in September - a still pleasant 68.9°F (20.5°C). In San Quentin, the average low-temperature is 54.3°F (12.4°C).

Humidity

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

Rainfall

In San Quentin, it is raining for 2.6 days, with typically 0.12" (3mm) of accumulated precipitation. Throughout the year, in San Quentin, there are 48 rainfall days, and 3.94" (100mm) of precipitation is accumulated.

Daylight

The average length of the day in October is 11.2h.

Sunshine

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

UV index

In October, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 4 in October interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in October in San Quentin?

In San Quentin, California, in October, the average high-temperature is 68.9°F (20.5°C), and the average low-temperature is 54.3°F (12.4°C).

What is the least humid month in San Quentin?

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

What is the average humidity in October in San Quentin?

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

How many days does it rain in October in San Quentin?

In San Quentin, during October, the rain falls for 2.6 days and regularly aggregates up to 0.12" (3mm) of precipitation.

What is the average length of the day in October in San Quentin?

The average length of the day in October in San Quentin, California, is 11.2h.

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

In October, the average sunshine is 6.8h.

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

The average daily maximum UV index in October in San Quentin, California, is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV radiation.

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).

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Average pressure in October
San Quentin, CA

Average pressure in October - San Quentin, CA
  • Average pressure in October: 29.98"

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

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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).

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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%).

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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").

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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).
Months with the least rainy days are June and August (1.2 days).

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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: 11.2h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in October: 6.8h

The month with the most sunshine is July (Average sunshine: 11.2h).
The month with the least sunshine is December (Average sunshine: 5.5h).

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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).

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Average UV index in October
San Quentin, CA

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

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

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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).

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Average visibility in October
San Quentin, CA

Average visibility in October - San Quentin, CA
  • Average visibility in October: 6mi

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

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