October weather forecast
Opal Cliffs, CA

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Weather in October

October, the same as September, in Opal Cliffs, California, is an agreeable autumn month, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 53.8°F (12.1°C).

Temperature

At the onset of October, Opal Cliffs records an average high-temperature of a still agreeable 69.4°F (20.8°C), showing little deviation from the preceding month. During October, the temperature in Opal Cliffs tends to dip to an average of 53.8°F (12.1°C) at night.

Humidity

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

Rainfall

In October, the rain falls for 4.5 days. Throughout October, 0.47" (12mm) of precipitation is accumulated. Throughout the year, there are 77.9 rainfall days, and 14.45" (367mm) of precipitation is accumulated.

Ocean temperature

In October, the average ocean temperature in Opal Cliffs is 57.7°F (14.3°C).
Note: You can swim in 57.7°F (14.3°C) below 50°F (10°C) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 55.4°F (13°C) without it is tough.

Daylight

In Opal Cliffs, California, the average length of the day in October is 11h and 14min.
On the first day of the month, sunrise is at 7:03 am and sunset at 6:50 pm. On the last day of October, sunrise is at 7:31 am and sunset at 6:11 pm PDT.

Sunshine

In October, the average sunshine is 7h.

UV index

In Opal Cliffs, the average daily maximum UV index in October is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In October, a regular UV index of 4 translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
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Frequently asked questions

What is the temperature in October in Opal Cliffs?

An average high-temperature, in October, in Opal Cliffs, 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 many days does it rain in October in Opal Cliffs?

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

What is the water temperature in October in Opal Cliffs?

In Opal Cliffs, California, the average seawater temperature in October 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 Opal Cliffs?

In Opal Cliffs, the average day length in October is 11h and 14min.

What time are sunrise and sunset in October in Opal Cliffs?

In October, on the first day of the month, sunrise is at 7:03 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 6:11 pm PDT.

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

In October, the average sunshine duration is 7h.

What is the UV index reading in October in Opal Cliffs?

In Opal Cliffs, the average daily maximum UV index in October is 4. A UV Index estimate of 3 to 5 represents a medium health risk 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
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"Hg

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

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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: 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 0min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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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

The months with the highest UV index are June, July, August and September (UV index 5).
The 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).
The 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

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).

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Opal Cliffs, California, USA

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