Climate and monthly 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

The climate of Newport Beach

Newport Beach, situated in California, USA, sits in a Mediterranean zone, characterized by hot summers, under the Köppen climate classification noted as Csa type. This area experiences mild winter temperatures and obtains most of its rainfall during this cooler season. The dry, hot summers are a defining attribute of this climate, adding to Newport Beach's allure as a coastal get-away.

Consistent throughout the year, temperatures max out around 76.6°F (24.8°C) in the summer and dip down to 52.3°F (11.3°C) in the winter; the coastal setting moderates the climate, resulting in pleasant, temperate conditions all year round. Humidity varies slightly from 59% to 74% with a moderate monthly rainfall of 0.04" (1mm) to 0.79" (20mm). Sea temperatures range from 58.5°F (14.7°C) to 67.7°F (19.8°C), offering enjoyable conditions for water-based activities throughout the year.

Bright sunshine graces Newport Beach on average from 6.6 hours to 12 hours a day, which along with low levels of cloud cover, offers clear days for outdoor pursuits and scenic landscapes. The presence of UV index between 4 and 6 urges caution and protection against potential skin damage for those spending prolonged hours outdoors. Superior visibility of 6 miles, due to lower pollution, augments the outdoor venture. Winds generally stay below 6.6mph (10.6km/h), making it ideal for windsurfing and sailing.

The best time to visit Newport Beach

Summer months from June through August can be the ideal time to visit Newport Beach. With high temperatures hovering near 76.6°F (24.8°C), combined with the lower humidity levels falling around 72%, results in a pleasing blend of sunshine and warmth. Sea temperatures during these months offer a refreshing contrast, sitting around a relaxing 67.7°F (19.8°C). With the highest sunshine hours reaching 12 in July, visitors will have ample time to explore and engage in outdoor activities. Lastly, the UV index reaches its maximal point at 6 so sunscreen is necessary during this period.

The worst time to visit Newport Beach

Although Newport Beach has a comparatively mild climate throughout the year, certain individuals may find the winter months of December through February less agreeable for a visit. With temperatures dropping down to 52.3°F (11.3°C) and the rainfall being as high as 0.79" (20mm) in December, outdoor activities can become somewhat limited and less enjoyable. Similarly, sea temperatures hit their lowest measure at 58.5°F (14.7°C) in January, which can deter visitors from going for a swim.

Spring weather in Newport Beach

Transitional from March to May, feature a slow and pleasant climb in temperature from 64.4°F (18°C) to 67.6°F (19.8°C) and decrease in rainfall from 0.43" (11mm) to 0.12" (3mm). Sunshine hours increase significantly from 8.7 hours in March to 11 hours in May, offering bright, longer days. The sea gradually warms from 58.6°F (14.8°C) to 62.2°F (16.8°C), making it conducive for beach visits, while the cloud cover reduces from 24% to 21% assuring clear days.

Summer weather in Newport Beach

Between June to August, summers are a highlight in Newport Beach. Highs reach 76.6°F (24.8°C) in August, the humidity levels range between 72% to 74% and there is minimal rainfall with 0.04" (1mm) in June. Sea temperatures hit their peak at 67.7°F (19.8°C) during July and August. Sunshine hours pinnacles at 12 during July, allowing for more daylight activities, while cloud cover stays low at 11% in July, ensuring clear skies.

Autumn weather in Newport Beach

Fall months from September to November present a gentle decline in temperatures, dropping from 76.1°F (24.5°C) to 68.5°F (20.3°C). The rainfall begins to increase again from 0.16" (4mm) in September to 0.39" (10mm) in November. The increase in cloud cover from 11% to 17% signifies the approach of the cooler winter months. However, the regular sunshine hours from 10.5 to 7.1 and easing sea temperatures from 66.8°F (19.3°C) to 62.5°F (16.9°C) still offer favorable conditions for outdoor activities.

Winter weather in Newport Beach

During winter months from December through February, the temperatures in Newport Beach experience a cooler phase with highest drop to 62.4°F (16.9°C) in December and a dip down to 52.3°F (11.3°C) in January. Rainfall is at its peak, with 0.79" (20mm) in December and an increase in cloud cover up to 24% in February. However, sunshine still prevails for 6.6 hours on average in December, offering opportunities for outdoor fun.

Weather in January

With relatively mild temperatures, January in Newport Beach, California, ushers in the New Year with its own unique style. This month experiences a high of 64.4°F (18°C) and a low of 53.6°F (12°C) while basking in approximately 6.7 hours of sunshine every day. Weather in January »

Weather in February

The weather in February exhibits a slight increase in rainfall and relative humidity levels compared to January. The average high temperature slightly decreases to 63.3°F (17.4°C) but it is offset by an increase in the low temperature to 52.3°F (11.3°C). Weather in February »

Weather in March

March in Newport Beach brings a hint of early spring warmth, evidenced by the slight increase in high and low temperatures to 64.8°F (18.2°C) and 53.4°F (11.9°C) respectively. Despite recording more rainy days (6.6 days on average) than the preceding month, March still enjoys approximately 8.7 hours of sunshine per day. Weather in March »

Weather in April

April signifies the onset of spring in Newport Beach, bringing with it the warm cheerfulness of higher temperatures. There is a noticeable climb in high and low temperatures to 66.6°F (19.2°C) and 54.9°F (12.7°C) respectively, coupled with a decline in rainfall to approximately 0.28" (7mm). Weather in April »

Weather in May

May in Newport Beach is a harbinger of summer, with the mercury registering a high of 67.6°F (19.8°C) and a low of 56.8°F (13.8°C). Rainfall recedes significantly to just 0.12" (3mm), presenting a drier environment under predominantly clear skies. Weather in May »

Weather in June

Weather in Newport Beach takes on a distinct summer feel in June. Higher temperatures are experienced this month, with the average high reaching up to 70.7°F (21.5°C). Rainfall sees a drastic drop, recording a meager 0.04" (1mm), the lowest in the year. Weather in June »

Weather in July

July, the mid-year mark, witnesses the highest temperatures and relative humidity of the year in Newport Beach. The mercury soars to a high of 75°F (23.9°C) and the low to a comfortable 63.5°F (17.5°C). Amidst these summer conditions, the city cheers on its residents and visitors with a generous 11.9 hours of daily sunshine. Weather in July »

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. Weather in August »

Weather in September

September ushers in early fall weather in Newport Beach, but the vestiges of summer temperatures stick around, with highs reaching up to 76.1°F (24.5°C). The slight dip in sea temperature doesn't deter the beach-goers, making it a popular location year-round. Weather in September »

Weather in October

October in Newport Beach marks the start of mellowed temperatures and the revival of rainfall. The average high declines to a soothing 73°F (22.8°C) amidst the onset of autumn. The changing hues of nature embellished with 8.4 hours of daily sunlight make it a picturesque time of the year. Weather in October »

Weather in November

Entering November, Newport Beach embraces the full force of autumn. Temperatures continue their descent, with averages leveled at 68.5°F (20.3°C) for highs and 57.9°F (14.4°C) for lows. The motif of the month is transitional, as summer gives way to drier conditions and relatively chilly nights. Weather in November »

Weather in December

December concludes the year in Newport Beach with cooler temperatures and the onset of seasonal festivities. The mercury dips to its annual low, with temperatures ranging between 62.4°F (16.9°C) and 53.1°F (11.7°C). It's the time of year when rainfall reaches its annual peak, totaling up to 0.79" (20mm). Weather in December »
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Frequently asked questions

How many days does it rain in Newport Beach?

In Newport Beach, during the entire year, the rain falls for 50.7 days and collects up to 3.74" (95mm) of precipitation.

What month is the ocean coldest in Newport Beach?

January is the month with the coldest seawater, with an average ocean temperature of 58.5°F (14.7°C).

What is the month with the lowest UV index in Newport Beach?

January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index.

When is Daylight Saving Time (DST) in Newport Beach?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Newport Beach, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

What is the most humid month in Newport Beach?

June is the most humid month in Newport Beach, with an average relative humidity of 74%.

What is the driest month in Newport Beach?

June is the month with the least rainfall in Newport Beach. Rain falls for 1.6 days and accumulates 0.04" (1mm) of precipitation.

When are the longest days in Newport Beach?

The month with the longest days is June, with an average of 14h and 24min of daylight.

When is the ocean warmest 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.

When is 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, California.

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 month has the most sunshine in Newport Beach?

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

What is the least humid month in Newport Beach?

The least humid month in Newport Beach, California, is November, with an average relative humidity of 59%.

What are the coldest months in Newport Beach?

With average temperatures fluctuating between a high of 62.4°F (16.9°C) and a low of 53.1°F (11.7°C), December stands out as the coldest month.

What is the wettest month in Newport Beach?

The month with the most rainfall is December, when the rain falls for 6.2 days and typically aggregates up to 0.79" (20mm) of precipitation.

What is the month with the shortest days in Newport Beach?

December has the shortest days of the year, with an average of 10h and 0min of daylight.

What is the month with the least sunshine in Newport Beach?

The month with the least sunshine in Newport Beach is December, with an average of 6.6h of sunshine.

Average temperature
Newport Beach, CA

Average temperature - Newport Beach, CA

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).

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
Newport Beach, CA

Average pressure - Newport Beach, CA

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
Newport Beach, CA

Average wind speed - Newport Beach, CA

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
Newport Beach, CA

Average humidity - Newport Beach, CA

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
Newport Beach, CA

Average rainfall - Newport Beach, CA

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
Newport Beach, CA

Average rainfall days - Newport Beach, CA

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
Newport Beach, CA

Average sea temperature - Newport Beach, CA

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 / Average sunshine
Newport Beach, CA

Average daylight / Average sunshine - Newport Beach, CA

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).

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
Newport Beach, CA

Average sunshine days - Newport Beach, CA

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
Newport Beach, CA

Average UV index - Newport Beach, CA

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 visibility
Newport Beach, CA

Average visibility - Newport Beach, CA

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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