July weather forecast
Opal Cliffs, CA

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Weather in July

July, like June, is an agreeable summer month in Opal Cliffs, California, with an average temperature varying between 72.5°F (22.5°C) and 53.4°F (11.9°C).

Temperature

Opal Cliffs, California, records an average high-temperature of a still pleasant 72.5°F (22.5°C) in July, maintaining a close correlation with June's 70°F (21.1°C). Opal Cliffs's average low-temperature in July is measured at a fresh 53.4°F (11.9°C).

Humidity

In July, the average relative humidity is 73%.

Rainfall

The months with the least rainfall are July and August Rain falls for 2.8 days and accumulates 0.04" (1mm) of rain.

Ocean temperature

In Opal Cliffs, the average seawater temperature in July is 56.8°F (13.8°C).
Note: Beware when you're in 56.8°F (13.8°C) waters; 55.4°F (13°C) is chilling and anything below 50°F (10°C) could cause breathing hindrance and a sudden cold shock, given your physical condition.

Daylight

The average length of the day in July is 14h and 24min.
On the first day of the month, sunrise is at 5:52 am and sunset at 8:31 pm. On the last day of July, sunrise is at 6:13 am and sunset at 8:15 pm PDT.

Sunshine

The month with the most sunshine is July, with an average of 11.7h of sunshine.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In July, the average maximum UV index of 5 translates into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in July?

In July, the average high-temperature and low-temperature are 72.5°F (22.5°C) and 53.4°F (11.9°C) respectively.

What is the average humidity in July?

In Opal Cliffs, the average relative humidity in July is 73%.

What is the driest month?

The months with the least rainfall are July and August Rain falls for 2.8 days and accumulates 0.04" (1mm) of rain.

How much does it rain in July?

In Opal Cliffs, in July, it is raining for 2.8 days, with typically 0.04" (1mm) of accumulated precipitation.

What is the water temperature in July in Opal Cliffs?

In Opal Cliffs, in July, the average water temperature is 56.8°F (13.8°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.

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

The average day length in July is 14h and 24min.

When are sunrise and sunset in July in Opal Cliffs?

On the first day of July, sunrise is at 5:52 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:15 pm PDT.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 11.7h of sunshine.

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

The average sunshine duration in July is 11.7h.

What is the month with the highest UV index?

The months with the highest UV index in Opal Cliffs are June through September, with an average maximum UV index of 5.

What is the UV index reading in July?

In Opal Cliffs, the average daily maximum UV index in July is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Opal Cliffs, CA

Average temperature in July - Opal Cliffs, CA
  • Average high temperature in July: 72.5°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 July: 53.4°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).

Average pressure in July
Opal Cliffs, CA

Average pressure in July - Opal Cliffs, CA
  • Average pressure in July: 29.94"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).

Average wind speed in July
Opal Cliffs, CA

Average wind speed in July - Opal Cliffs, CA
  • Average wind speed in July: 5.5mph

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).

Average humidity in July
Opal Cliffs, CA

Average humidity in July - Opal Cliffs, CA
  • Average humidity in July: 73%

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

Average rainfall in July
Opal Cliffs, CA

Average rainfall in July - Opal Cliffs, CA
  • Average rainfall in July: 0.04"

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

Average rainfall days in July
Opal Cliffs, CA

Average rainfall days in July - Opal Cliffs, CA
  • Average rainfall days in July: 2.8 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).

Average sea temperature in July
Opal Cliffs, CA

Average sea temperature in July - Opal Cliffs, CA
  • Average sea temperature in July: 56.8°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).

Average daylight in July /
Average sunshine in July
Opal Cliffs, CA

Average daylight in July / Average sunshine in July - Opal Cliffs, CA
  • Average daylight in July: 14h and 2min

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 July: 11h and 4min

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).

Average sunshine days in July
Opal Cliffs, CA

Average sunshine days in July - Opal Cliffs, CA
  • Average sunshine days in July: 27.4 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).

Average UV index in July
Opal Cliffs, CA

Average UV index in July - Opal Cliffs, CA
  • Average UV index in July: 5

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).

Average cloud cover in July
Opal Cliffs, CA

Average cloud cover in July - Opal Cliffs, CA
  • Average cloud cover in July: 15

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).

Average visibility in July
Opal Cliffs, CA

Average visibility in July - Opal Cliffs, CA
  • Average visibility in July: 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).

Opal Cliffs, California, USA

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