October weather forecast and climate
Monterey, CA

The rugged mountainous coast of Big Sur in Monterey, California
The rugged mountainous coast of Big Sur in Monterey, California

Weather in October

October, like September, is another pleasant autumn month in Monterey, California, with average temperature fluctuating between 53.6°F (12°C) and 68.7°F (20.4°C).

Temperature

In October, the average high-temperature is relatively the same as in September - a still agreeable 68.7°F (20.4°C). In Monterey, California, in October, the average low-temperature is 53.6°F (12°C).

Humidity

In October, the average relative humidity in Monterey, California, is 69%.

Rainfall

In Monterey, during October, the rain falls for 4.5 days and regularly aggregates up to 0.47" (12mm) of precipitation. In Monterey, California, during the entire year, the rain falls for 73.6 days and collects up to 11.77" (299mm) of precipitation.

Ocean temperature

In Monterey, the average water temperature is 57.7°F (14.3°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

In Monterey, California, the average length of the day in October is 11.2h.

Sunshine

In Monterey, California, the average sunshine in October is 7.2h.

UV index

The average daily maximum UV index in Monterey is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV rays for the average person.
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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in October in Monterey?

In October, in Monterey, the average high-temperature is 68.7°F (20.4°C), and the average low-temperature is 53.6°F (12°C).

What is the average humidity in October in Monterey?

In Monterey, the average relative humidity in October is 69%.

How much does it rain in Monterey in October?

In October, in Monterey, California, the rain falls for 4.5 days. Throughout October, 0.47" (12mm) of precipitation is accumulated.

What is the ocean temperature in October in Monterey?

In October, the average ocean temperature in Monterey, California, is 57.7°F (14.3°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the average length of the day in October in Monterey?

In October, the average length of the day is 11.2h.

How many hours of sunshine does Monterey have in October?

The average sunshine in October is 7.2h.

What is the UV index reading in October in Monterey?

In October, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in October
Monterey, CA

Average temperature in October - Monterey, CA
  • Average high temperature in October: 68.7°F

The warmest month (with the highest average high temperature) is September (72.5°F).
The month with the lowest average high temperature is December (57.2°F).

  • Average low temperature in October: 53.6°F

Months with the highest average low temperature are August and September (55.2°F).
The coldest month (with the lowest average low temperature) is February (46°F).

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Average pressure in October
Monterey, CA

Average pressure in October - Monterey, CA
  • Average pressure in October: 29.98"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is September (29.92").

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Average wind speed in October
Monterey, CA

Average wind speed in October - Monterey, CA
  • Average wind speed in October: 5.8mph

The windiest months (with the highest average wind speed) are April and May (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in October
Monterey, CA

Average humidity in October - Monterey, CA
  • Average humidity in October: 69%

Months with the highest relative humidity are March and May (76%).
The month with the lowest relative humidity is November (68%).

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Average rainfall in October
Monterey, CA

Average rainfall in October - Monterey, CA
  • Average rainfall in October: 0.47"

The wettest month (with the highest rainfall) is December (2.4").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in October
Monterey, CA

Average rainfall days in October - Monterey, 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 (1.1 days).

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Average sea temperature in October
Monterey, CA

Average sea temperature in October - Monterey, CA
  • Average sea temperature in October: 57.8°F

The best months for swimming (with the highest average sea temperature) are August and September (58.1°F).
The coldest month (with the lowest average sea temperature) is April (53.8°F).

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Average daylight in October /
Average sunshine in October
Monterey, CA

Average daylight in October / Average sunshine in October - Monterey, CA
  • Average daylight in October: 11.2h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in October: 7.2h

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

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Average sunshine days in October
Monterey, CA

Average sunshine days in October - Monterey, CA
  • Average sunshine days in October: 25.4 days

The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is March (16.8 days).

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Average UV index in October
Monterey, CA

Average UV index in October - Monterey, CA
  • Average UV index in October: 4

Months with the highest UV index are June, July, August and September (UV index 5).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in October
Monterey, CA

Average cloud cover in October - Monterey, CA
  • Average cloud cover in October: 16

The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 9).

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Average visibility in October
Monterey, CA

Average visibility in October - Monterey, 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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