December Weather in Newport Beach, United States

Last updated: February 24, 2025

Experience the mild charm of Newport Beach in December, where temperatures range from a pleasant 10°C (51°F) at night to a comfortable 22°C (72°F) during the day, with an average of 15°C (59°F). This coastal paradise encounters around 68 mm (2.7 in) of rainfall spread across 5 days, making for an invigorating atmosphere but still plenty of dry moments to relish the beach. The 71% humidity adds a touch of crispness to the air, enhancing the inviting ambiance of this stunning seaside destination. Whether you’re indulging in winter beach strolls or cozying up in local cafes, December offers a unique blend of serenity and vibrant coastal life.

December Temperature in Newport Beach

In Newport Beach, December offers a mild transition into winter, with temperatures typically ranging from a minimum of 10°C (51°F) to a comfortable maximum of 22°C (72°F). The average temperature settles around 15°C (59°F), creating a pleasant backdrop for holiday festivities and beach strolls. Compared to the preceding months, December maintains a relatively stable climate, mirroring the patterns seen in November. While nights may bring a slight chill, daytime warmth continues to encourage outdoor activities, allowing residents and visitors alike to savor the beauty of the season in this coastal paradise.

December Weather in Newport Beach: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Newport Beach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec585758596163676968676359
Data source: Temperature data for Newport Beach generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Newport Beach

In Newport Beach, December marks a notable increase in precipitation, showcasing a total of 68 mm (2.7 in) over 5 days of rain. This contrasts sharply with the drier summer months, where rainfall is nearly nonexistent, with June through September recording just a trace. November also sees a mild uptick in rain with 21 mm (0.8 in), but December truly stands out as the wettest month of the year, emphasizing the shift from the dry season to the winter rains typical of Southern California. As temperatures cool, the region's landscape benefits from this increase, setting the stage for the lush, vibrant scenery that follows in the new year.

December Precipitation Trends in Newport Beach

The chart displays monthly precipitation patterns in Newport Beach, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec5749502312322382168
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Newport Beach

In December, Newport Beach experiences a humidity level of 71%, reflecting a mild transition as the year draws to a close. This figure marks a slight increase compared to the more arid conditions of October (67%) and November (68%), suggesting a trend towards higher moisture levels as the winter months approach. Interestingly, humidity levels remain relatively stable throughout the year, hovering around the low 70s in winter months and dipping into the high 60s during late fall. Overall, December's humidity suggests a cozy yet fresh atmosphere, perfect for enjoying the coastal beauty of this Southern California gem amidst the gentle winter chill.

December Average Humidity in Newport Beach

This chart illustrates the average monthly humidity levels in Newport Beach, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec74%79%75%71%70%72%73%69%68%67%68%71%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Newport Beach

In December, Newport Beach experiences a moderate UV Index of 4, which allows for a safe outdoor experience with a burn time of 30 minutes before sun protection is needed. This marks a gradual decline from the extreme levels seen during the summer months of June and July, where UV Index levels peaked at 11. As the year transitions into winter, residents and visitors can enjoy the milder sun exposure, following a trend where the UV Index generally decreases from its summer highs. However, even in cooler months, it's wise to stay informed and protected while enjoying the beautiful coastal scenery. For a detailed overview of UV levels throughout the year, check out Newport Beach UV Index.

Maximum UV Index Levels in Newport Beach for December

The chart shows the monthly maximum UV Index (UVI) for Newport Beach in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec468101011111010754
Data source: Newport Beach December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Newport Beach

As the year winds down, December in Newport Beach experiences a dip in sunshine hours, offering around 226 hours of radiant daylight. This marks the end of a remarkable progression throughout the year, where sunshine peaks in the summer months, particularly with July basking in a glorious 379 hours. Interestingly, the trend shows a gradual increase in sunlight from the start of the year, with January starting at a modest 190 hours before flourishing into vibrant springtime. Although December may not flaunt the abundance seen in the summer, it still provides a charming backdrop of sunshine, perfect for enjoying the coastal beauty as the holiday season approaches.

Monthly Sunshine Duration in Newport Beach: December Highlighted

The December sunshine duration represents the total number of hours Newport Beach experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec190h236h290h318h350h366h379h361h316h293h256h226h
Data source: Newport Beach December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Newport Beach During December

In Newport Beach, the likelihood of sunny weather shows some interesting trends as the year progresses. December, with a chance of 47% sunny days, marks a noticeable dip compared to the sunnier months that precede it. As the year winds down, it's clear that earlier months like March and September boast much higher probabilities, reaching 68% and 67% respectively. While December's weather can be a bit gloomier, it's important to remember that this coastal haven typically enjoys mild temperatures and occasional breaks of sunshine, making it a delightful winter escape despite the lower likelihood of clear skies.

Percentage of Sunny Days in December in Newport Beach

The chart illustrates the percentage of sunny days in Newport Beach throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Newport Beach experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec61%61%68%51%40%48%57%65%67%65%63%47%
Data source: Newport Beach December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Newport Beach in December

In Newport Beach, the rhythm of the seasons is beautifully mirrored in the changing daylight duration. As the year unfolds, January and February each bask in a consistent 10 hours of sunlight, providing a soft start to the year. March ushers in longer days with an increase to 11 hours, gradually leading to the burst of brightness in April and May, where daylight peaks at a delightful 13 hours. June and July continue this trend, offering the longest days of the year with 14 hours of sunlight, perfect for beach outings and sunsets. However, as summer wanes, August begins the gentle decline, smoothly transitioning to 12 hours in September, followed by a steady retreat into 11 hours in October and 10 hours in November. Finally, December wraps up the year with a cozy 9 hours of daylight, signaling the onset of winter while still holding onto the warm memories of longer sunlit days. This cyclical dance of light not only defines Newport Beach’s seasonal beauty but also shapes the lifestyle of its residents and visitors alike.

Average Daylight Hours in Newport Beach for December

The chart illustrates the variation in daylight duration in Newport Beach throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 11m10h 59m11h 59m13h 2m13h 54m14h 20m14h 6m13h 19m12h 19m11h 17m10h 23m9h 56m
Data source: Newport Beach daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Newport Beach

As December arrives in Newport Beach, the average wind speed picks up to a brisk 3.6 m/s (8 mph), providing a refreshing contrast to the lighter breezes of the preceding months. Compared to November's 2.5 m/s (6 mph), December's winds signal a shift, with their strength reminiscent of the spring months. Throughout the year, the average wind speeds generally hover around 3.1 to 3.7 m/s, but December stands out as a month where the invigorating winds invite beachgoers to embrace the ocean's energy. This increase in wind speed not only enhances the beauty of the coastal landscape but also serves as a reminder of the refreshing ocean air that characterizes life in this coastal paradise.

Average December Wind Speed in Newport Beach

The chart displays monthly wind speed patterns in Newport Beach, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.23.23.73.73.43.43.13.13.13.12.53.6 m/s
Data source: Newport Beach December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Newport Beach Compares to Other Months

The weather in Newport Beach changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Newport Beach and find detailed weather information for every month.

In December, temperatures in Newport Beach range from a minimum of 10°C (51°F) to a maximum of 22°C (72°F), with an average of 15°C (59°F). The month experiences about 68 mm (2.7 in) of precipitation over five days, accompanied by a humidity level of 71%. Comparatively, January sees a slight dip in average temperature to 14°C (58°F), while maintaining similar extremes, with minimum temperatures still at 10°C (50°F) and maxima of 22°C (71°F). Precipitation decreases to 57 mm (2.2 in) over just four days, and humidity rises slightly to 74%. For more insights on the weather specifics, check out Newport Beach weather in January.

In comparing the weather between December and February, we find that both months exhibit relatively mild temperatures, with February slightly cooler on average. December sees a minimum of 10°C (51°F) and an average high of 22°C (72°F), whereas February’s minimum drops to 8°C (47°F) with a similar maximum of 22°C (72°F). Precipitation is also notable; December experiences 68 mm (2.7 in) over 5 days, while February has less rainfall at 49 mm (1.9 in) over 6 days. Additionally, February has a higher humidity level at 79% compared to December’s 71%, contributing to a slightly more damp atmosphere. For more specifics on February's climate, you can check out Newport Beach weather in February.

In December, temperatures in Newport Beach typically range from a minimum of 10°C (51°F) to a maximum of 22°C (72°F), with an average temperature of around 15°C (59°F). The month tends to be wetter, with about 68 mm (2.7 in) of precipitation over approximately 5 days and a humidity level of 71%. In contrast, March experiences slightly cooler temperatures, with a minimum of 9°C (49°F) and a maximum of 20°C (67°F), averaging 14°C (58°F). While March sees less overall precipitation at 50 mm (2.0 in), it has a higher frequency of rainy days—about 8 days—and a slightly elevated humidity of 75%. For more details about the month, check out Newport Beach weather in March.

In December, temperatures in Newport Beach range from a minimum of 10°C (51°F) to a maximum of 22°C (72°F), with an average of 15°C (59°F). The month experiences about 68 mm (2.7 in) of precipitation over approximately 5 days, accompanied by a humidity level of 71%. In contrast, April sees slightly warmer conditions, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 25°C (78°F), retaining a similar average of 15°C (60°F). Rainfall decreases significantly to 22 mm (0.9 in) over just 3 days, while humidity remains relatively consistent at 70%. For more details on weather patterns during this time, you can visit Newport Beach weather in April.

In December, the weather tends to be milder with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 22°C (72°F), averaging around 15°C (59°F). December typically sees more precipitation, with about 68 mm (2.7 in) over an average of 5 days, accompanied by a humidity level of 71%. In contrast, May offers slightly warmer conditions with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 21°C (70°F), averaging 16°C (61°F). Precipitation decreases significantly, totaling only 12 mm (0.5 in) over just 2 days, and the humidity remains relatively stable at 70%. For more details on May weather, check out Newport Beach weather in May.

December and June present quite different weather conditions. In December, temperatures range from a mild minimum of 10°C (51°F) to a comfortable maximum of 22°C (72°F), with an average of 15°C (59°F). The month sees around 68 mm (2.7 inches) of precipitation spread over 5 days, contributing to a relatively humid atmosphere with 71% humidity. In contrast, June enjoys warmer temperatures, with a minimum of 14°C (58°F) and a maximum of 25°C (77°F), averaging 17°C (64°F). Remarkably, June experiences very little precipitation at just 3 mm (0.1 inches) across 0 days, maintaining a similar humidity level of 72%. For more insights on June weather, check out Newport Beach weather in June.

December and July present contrasting weather experiences. In December, temperatures range from a minimum of 10°C (51°F) to a maximum of 22°C (72°F), with an average of 15°C (59°F). This month sees moderate rainfall, with 68 mm (2.7 in) of precipitation over about five days, and humidity is relatively high at 71%. In contrast, July offers warmer conditions, with minimum temperatures of 16°C (62°F) and maximums reaching 25°C (78°F), averaging 20°C (68°F). Remarkably, July experiences very little rain, with only 2 mm (0.1 in) and no rainy days, while humidity remains slightly higher at 73%. For more detailed information, you can explore Newport Beach weather in July.

December weather in Newport Beach features milder temperatures, with a minimum of 10°C (51°F) and an average of 15°C (59°F), making it notably cooler than the warm August days. In contrast, August boasts higher temperatures, ranging from a minimum of 17°C (63°F) to a maximum of 26°C (78°F), offering plenty of sunshine with virtually no precipitation. December also sees significantly more rainfall, with an average of 68 mm (2.7 in) spread over five days, while August remains dry with only 2 mm (0.1 in) of precipitation across the month. Humidity levels are comparable in both months, hovering around 71% in December and 69% in August, contributing to a comfortable coastal atmosphere. For more details about the weather in August, you can check this link: Newport Beach weather in August.

In comparing the weather between December and September, it's clear that December offers cooler temperatures, with a minimum of 10°C (51°F) and a maximum reaching 22°C (72°F). In contrast, September boasts warmer averages, with minimums of 17°C (62°F) and maximums soaring to 30°C (86°F). Additionally, December experiences more precipitation, with 68 mm (2.7 in) over five days, while September remains quite dry, recording only 3 mm (0.1 in) with no rainy days. Despite the slight difference in humidity, with September at 68% and December at 71%, September is generally warmer and drier. For more details on September weather, check Newport Beach weather in September.

In comparing the weather between October and December, we see a noticeable shift in temperature and conditions. October experiences warmer temperatures with a minimum of 14°C (58°F) and an average of 19°C (67°F), reaching a high of 30°C (87°F). In contrast, December cools down significantly, with a minimum of 10°C (51°F) and an average of 15°C (59°F), peaking at 22°C (72°F). Additionally, December is wetter, receiving 68 mm (2.7 in) of precipitation over five days, compared to October's relatively dry 8 mm (0.3 in) over just two days. Both months have similar humidity levels, with October at 67% and December at 71%. For those interested in exploring more about October's weather, you can find additional details here: Newport Beach weather in October.

In comparing the weather of November and December, December experiences slightly cooler temperatures, with a minimum of 10°C (51°F) and an average of 15°C (59°F), compared to November's minimum of 10°C (50°F) and a higher average of 17°C (63°F). The maximum temperature also drops from 25°C (77°F) in November to 22°C (72°F) in December. Additionally, December sees significantly more precipitation, totaling 68 mm (2.7 in) over 5 days, while November only receives 21 mm (0.8 in) across just 2 days. Humidity levels are relatively comparable, with December at 71% and November at 68%. For more insight into November's weather patterns, you can check out Newport Beach weather in November.

Compare Newport Beach's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Newport Beach

In December, Newport Beach experiences a noticeable shift in weather, marked by cooler temperatures and increased humidity compared to the warmer, drier months of the year. With average highs around 22°C (72°F) and lows dipping to 10°C (51°F), the month invites a refreshing chill, perfect for cozy beach walks. While precipitation rises to about 68 mm over just a handful of days, December brings a welcome change, offering a brief respite from the summer heat. Embrace the unique charm of Newport Beach during this time by exploring the coastal beauty beneath moody winter skies. For a deeper dive into what to expect year-round, visit Newport Beach Climate.