October weather forecast and climate
Opal Cliffs, CA

Weather in October

October, like September, is another pleasant autumn month in Opal Cliffs, California, with average temperature varying between 69.4°F (20.8°C) and 53.8°F (12.1°C).

Temperature

In Opal Cliffs, the average high-temperature in October is essentially the same as in September - a still pleasant 69.4°F (20.8°C). The average low-temperature, in Opal Cliffs, is 53.8°F (12.1°C).

Humidity

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

Rainfall

In Opal Cliffs, in October, during 4.5 rainfall days, 0.47" (12mm) of precipitation is typically accumulated. In Opal Cliffs, during the entire year, the rain falls for 77.9 days and collects up to 14.45" (367mm) of precipitation.

Ocean temperature

In October, the average ocean temperature is 57.7°F (14.3°C).
Note: Swimming in 57.7°F (14.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

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

Sunshine

The average sunshine in Opal Cliffs is 7h.

UV index

The average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Opal Cliffs?

In Opal Cliffs, in October, the average high-temperature is 69.4°F (20.8°C), and the average low-temperature is 53.8°F (12.1°C).

What is the least humid month in Opal Cliffs?

The least humid month in Opal Cliffs is October, with an average relative humidity of 68%.

What is the average humidity in October in Opal Cliffs?

In Opal Cliffs, California, the average relative humidity in October is 68%.

How much does it rain in Opal Cliffs in October?

In Opal Cliffs, California, during October, the rain falls for 4.5 days and regularly aggregates up to 0.47" (12mm) of precipitation.

What is the ocean temperature in October in Opal Cliffs?

In Opal Cliffs, the average seawater temperature in October is 57.7°F (14.3°C). Swimming in 57.7°F (14.3°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Opal Cliffs have in October?

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

How long on average sun shines in October in Opal Cliffs?

In Opal Cliffs, the average sunshine in October is 7h.

How high is the UV index in October in Opal Cliffs?

The average daily maximum UV index in October in Opal Cliffs, California, is 4. A UV Index reading of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.

Average temperature in October
Opal Cliffs, CA

Average temperature in October - Opal Cliffs, CA
  • Average high temperature in October: 69.4°F

The warmest months (with the highest average high temperature) are August and September (73°F).
The month with the lowest average high temperature is December (57.2°F).

  • Average low temperature in October: 53.8°F

The month with the highest average low temperature is September (55.2°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).

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Average pressure in October
Opal Cliffs, CA

Average pressure in October - Opal Cliffs, 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
Opal Cliffs, CA

Average wind speed in October - Opal Cliffs, CA
  • Average wind speed in October: 5.7mph

The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in October
Opal Cliffs, CA

Average humidity in October - Opal Cliffs, CA
  • Average humidity in October: 68%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in October
Opal Cliffs, CA

Average rainfall in October - Opal Cliffs, CA
  • Average rainfall in October: 0.47"

The wettest month (with the highest rainfall) is December (2.8").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in October
Opal Cliffs, CA

Average rainfall days in October - Opal Cliffs, CA
  • Average rainfall days in October: 4.5 days

The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is August (1.2 days).

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Average sea temperature in October
Opal Cliffs, CA

Average sea temperature in October - Opal Cliffs, 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
Opal Cliffs, CA

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

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in October: 7h

The month with the most sunshine is July (Average sunshine: 11.7h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days in October
Opal Cliffs, CA

Average sunshine days in October - Opal Cliffs, CA
  • Average sunshine days in October: 25.3 days

The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (16.4 days).

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Average UV index in October
Opal Cliffs, CA

Average UV index in October - Opal Cliffs, CA
  • Average UV index in October: 4

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

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Average cloud cover in October
Opal Cliffs, CA

Average cloud cover in October - Opal Cliffs, CA
  • Average cloud cover in October: 19

The month with the most cloud cover is March (Cloud cover 38).
Months with the least cloud cover are July and September (Cloud cover 15).

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Average visibility in October
Opal Cliffs, CA

Average visibility in October - Opal Cliffs, 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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