August weather forecast
Newport Beach, CA

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The stunning coastal village of Corona Del Mar, in Newport Beach, California
The stunning coastal village of Corona Del Mar, in Newport Beach, California

Weather in August

August in Newport Beach registers the highest sea temperature of the year. The city experiences the peak of summer with high temperatures plateauing at 76.6°F (24.8°C). Coincidentally, this month also registers the lowest cloud coverage, awarding clear skies and plentiful sunshine to all. With 12 hours of daylight, the opportunities for outdoor ventures are endless. It's a time when the weather complements the mood of inhabitants, setting the scene for summer enjoyment.

Temperature

August, with an average high of 76.6°F (24.8°C) and a low of 64.9°F (18.3°C), signifies the warmest month of the year in Newport Beach.

Humidity

In August, the average relative humidity in Newport Beach, California, is 70%.

Rainfall

In Newport Beach, California, in August, it is raining for 2.8 days, with typically 0.2" (5mm) of accumulated precipitation. Throughout the year, in Newport Beach, there are 50.7 rainfall days, and 3.74" (95mm) of precipitation is accumulated.

Ocean temperature

July and August, with an average ocean temperature of 67.6°F (19.8°C), are months with the warmest seawater.
Note: A surface water temperature of 67.6°F (19.8°C) does not provide an enjoyable swimming experience for most. Breathing control becomes more challenging as the water temperature drops below 69.8°F (21°C).

Daylight

The average length of the day in August is 13h and 22min.
On the first day of the month, sunrise is at 6:04 am and sunset at 7:51 pm. On the last day of August, in Newport Beach, California, sunrise is at 6:25 am and sunset at 7:17 pm PDT.

Sunshine

The month with the most sunshine in Newport Beach is August, with an average of 12h of sunshine.

UV index

The months with the highest UV index are July through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 6 in August translates into this advice:
Guard oneself from overexposure. Defence against sun injury is vital. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Frequently asked questions

What is the warmest month in Newport Beach?

Newport Beach's temperature records reveal August as the warmest month, marked by average highs of 76.6°F (24.8°C) and lows of 64.9°F (18.3°C).

What are the temperatures in Newport Beach in August?

In August, the average high-temperature and low-temperature in Newport Beach are 76.6°F (24.8°C) and 64.9°F (18.3°C) respectively.

What is the average humidity in August in Newport Beach?

In Newport Beach, California, the average relative humidity in August is 70%.

How much does it rain in Newport Beach in August?

In Newport Beach, California, in August, during 2.8 rainfall days, 0.2" (5mm) of precipitation is typically accumulated.

What are the months with the warmest ocean in Newport Beach?

July and August, with an average ocean temperature of 67.6°F (19.8°C), are months with the warmest seawater in Newport Beach, California.

What is the ocean temperature in August in Newport Beach?

In Newport Beach, California, the average seawater temperature in August is 67.6°F (19.8°C). For most, swimming in 67.6°F (19.8°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

What is the average length of the day in August in Newport Beach?

In August, the average day length in Newport Beach is 13h and 22min.

When is the sunrise / sunset in August in Newport Beach?

In August, on the first day of the month, sunrise is at 6:04 am and sunset at 7:51 pm. On the last day of the month, in Newport Beach, California, sunrise is at 6:25 am and sunset at 7:17 pm PDT.

What month has the most sunshine in Newport Beach?

With an average of 12h of sunshine, August has the most sunshine of the year.

How long on average sun shines in August in Newport Beach?

In Newport Beach, the average sunshine duration in August is 12h.

What are the months with the highest UV index in Newport Beach?

July through September, with an average maximum UV index of 6, are months with the highest UV index in Newport Beach.

How high is the UV index in August in Newport Beach?

In August, the average daily maximum UV index in Newport Beach is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to 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 August
Newport Beach, CA

Average temperature in August - Newport Beach, CA
  • Average high temperature in August: 76.6°F

The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (62.4°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (52.3°F).

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Average pressure in August
Newport Beach, CA

Average pressure in August - Newport Beach, CA
  • Average pressure in August: 29.9"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).

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Average wind speed in August
Newport Beach, CA

Average wind speed in August - Newport Beach, CA
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is October (5.2mph).

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Average humidity in August
Newport Beach, CA

Average humidity in August - Newport Beach, CA
  • Average humidity in August: 70%

The month with the highest relative humidity is June (74%).
The month with the lowest relative humidity is November (59%).

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Average rainfall in August
Newport Beach, CA

Average rainfall in August - Newport Beach, CA
  • Average rainfall in August: 0.2"

The wettest month (with the highest rainfall) is December (0.79").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in August
Newport Beach, CA

Average rainfall days in August - Newport Beach, CA
  • Average rainfall days in August: 2.8 days

The month with the highest number of rainy days is March (6.6 days).
The month with the least rainy days is June (1.6 days).

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Average sea temperature in August
Newport Beach, CA

Average sea temperature in August - Newport Beach, CA
  • Average sea temperature in August: 67.7°F

The best months for swimming (with the highest average sea temperature) are July and August (67.7°F).
The coldest month (with the lowest average sea temperature) is January (58.5°F).

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Average daylight in August /
Average sunshine in August
Newport Beach, CA

Average daylight in August / Average sunshine in August - Newport Beach, CA
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in August: 12h and 0min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

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Average sunshine days in August
Newport Beach, CA

Average sunshine days in August - Newport Beach, CA
  • Average sunshine days in August: 25.8 days

The month with the most sunshine days is June (26.5 days).
The month with the least sunshine days is February (20.5 days).

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Average UV index in August
Newport Beach, CA

Average UV index in August - Newport Beach, CA
  • Average UV index in August: 6

The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).

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Average cloud cover in August
Newport Beach, CA

Average cloud cover in August - Newport Beach, CA
  • Average cloud cover in August: 8

The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 8).

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Average visibility in August
Newport Beach, CA

Average visibility in August - Newport Beach, CA
  • Average visibility in August: 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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Newport Beach, California, USA

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