December Weather in Sea Isle City, United States

Last updated: February 24, 2025

In December, Sea Isle City experiences a unique blend of winter characteristics, with maximum temperatures reaching a mild 18°C (65°F) and dipping to a chilly minimum of -9°C (16°F). The average temperature hovers around a brisk 6°C (43°F), creating a crisp atmosphere ideal for cozy gatherings. With 108 mm (4.2 in) of precipitation over 10 days, the month brings a mix of rain and the potential for early snow, enhancing the seasonal charm. Coupled with humidity levels at 81%, the coastal town invites visitors to embrace its frosty beauty while enjoying its picturesque winter landscapes.

December Temperature in Sea Isle City

In Sea Isle City, December ushers in the chill of winter, with temperatures dipping as low as -9°C (16°F) at night. The month features an average temperature of 6°C (43°F), providing a modest respite from the harsher January cold. As daylight gives way to longer nights, the maximum temperatures peak around 18°C (65°F), hinting at the gentle transition of the seasons. Compared to the frigid first months of the year, December emerges as a relatively mild phase, though it still leans towards the colder side, reminiscent of the preceding November chill. This mix of cooler days and crisp nights paints a picturesque winter landscape perfect for cozy indoor activities or brisk strolls along the shore.

December Weather in Sea Isle City: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Sea Isle City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec384045546272787772635043
Data source: Temperature data for Sea Isle City 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 Sea Isle City

In Sea Isle City, December brings a notable increase in precipitation, with an average of 108 mm (4.2 in) recorded over about 10 days. This trend aligns with the winter season, showcasing a slight uptick compared to the preceding months. Notably, while November experienced a more moderate 81 mm (3.2 in) over just 7 days, December's conditions signal a shift towards a wetter climate as the year concludes. With regular rain, residents can expect to see an atmosphere that reflects the season's charm, even as they welcome the challenges of inclement weather. Overall, December precipitation not only contributes to the beauty of Sea Isle City but also sets the stage for the wetter months ahead.

December Precipitation Trends in Sea Isle City

The chart displays monthly precipitation patterns in Sea Isle City, 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.
JanFebMarAprMayJunJulAugSepOctNovDec68102105941127613011811313381108
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sea Isle City

In December, Sea Isle City experiences a notable humidity level of 81%, which is quite consistent with the trends observed in the preceding months. While December's humidity sees a slight increase from the drier fall months, particularly September and October at 74-75%, it remains lower than the peak levels of January and February, which consistently hover around 83% and 82% respectively. This gradual tapering off from the summer's moderate humidity in July and August (both around 76-77%) hints at a transition towards the colder winter months. Overall, December's humidity contributes to the town's crisp coastal atmosphere, balancing the lingering warmth of autumn with the freshness of winter.

December Average Humidity in Sea Isle City

This chart illustrates the average monthly humidity levels in Sea Isle City, 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.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%81%79%74%77%76%77%74%75%80%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sea Isle City

As the year winds down in Sea Isle City, December brings a return to more moderate UV Index levels, dropping to 3, similar to January's readings. This gentle decrease signals a shift from the intense summer sunlight, where the UV Index peaked at 10 during the warmer months of May through August. With a burn time of about 30 minutes, December's sun is still capable of causing skin damage, so proper sun protection is advisable despite the cooler weather. The trend throughout the year underscores the importance of adapting your sun safety practices: from high alert levels in spring and summer to a more measured approach in the fall and winter. For up-to-date information, visit the Sea Isle City UV Index.

Maximum UV Index Levels in Sea Isle City for December

The chart shows the monthly maximum UV Index (UVI) for Sea Isle City 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.
JanFebMarAprMayJunJulAugSepOctNovDec3569101010108743
Data source: Sea Isle City 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 Sea Isle City

In Sea Isle City, December brings a cozy but bright transition towards winter, with 188 hours of sunshine that hints at the charm of the season. Following the sunniest months of the year, July enjoys a peak of 362 hours, the winter chill sets in with shorter days, making December's sunshine feel especially precious. As the year progresses, we see a gradual decline in daylight hours, with a notable dip from the vibrant stretches of May (308 hours) to the quieter December. However, amidst the cooler temperatures, the city still basks in a comfortable amount of light when compared to the earlier part of the year—particularly notable is the jump in sunshine from January's 158 hours. This pattern underscores Sea Isle City's enduring appeal, where even in the heart of winter, the sun manages to shine brightly, casting a warm glow over the enchanting coastal landscape.

Monthly Sunshine Duration in Sea Isle City: December Highlighted

The December sunshine duration represents the total number of hours Sea Isle City 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.
JanFebMarAprMayJunJulAugSepOctNovDec158h182h262h272h308h340h362h330h289h247h228h188h
Data source: Sea Isle City December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sea Isle City During December

In December, Sea Isle City experiences a 36% chance of sunny weather, making it one of the cloudier months of the year. This trend contrasts sharply with the preceding months, particularly November, which boasts a considerably higher 56% chance of sunshine. As winter approaches, the likelihood of sunny days dwindles, following a pattern observed throughout the fall, where chances typically decline from summer highs. Interestingly, March brings a slight resurgence with 53%, hinting that brighter weather isn't too far away even as December settles in.

Percentage of Sunny Days in December in Sea Isle City

The chart illustrates the percentage of sunny days in Sea Isle City 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 Sea Isle City experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec51%28%53%48%45%42%53%34%55%45%56%36%
Data source: Sea Isle City December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sea Isle City in December

In Sea Isle City during December, daylight hours begin to dwindle, offering just 9 hours of sunlight. This trend marks the end of a gradual decline that starts in late autumn; as daylight gradually decreases from 10 hours in November, it continues its descent through the winter months. The month showcases a significant contrast to the summer's peak when daylight stretches to a generous 14 hours in June, July, and August. As the year progresses toward spring, residents can look forward to the return of lengthening days, with daylight increasing steadily until it reaches 14 hours once again by May. This cyclical pattern not only highlights Sea Isle City's seasonal transitions but also evokes a cozy, reflective atmosphere as the year concludes.

Average Daylight Hours in Sea Isle City for December

The chart illustrates the variation in daylight duration in Sea Isle City throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 44m10h 43m11h 58m13h 15m14h 20m14h 52m14h 34m13h 37m12h 23m11h 7m10h9h 26m
Data source: Sea Isle City daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Sea Isle City

As the year draws to a close, December in Sea Isle City brings a gentle breeze with an average wind speed of 4.0 m/s (9 mph). This marks a slight decline from the sharper gusts seen in the earlier months, such as November's winds at 4.6 m/s, which capture the transition from the energetic autumnal winds to the more subdued embrace of winter. Notably, the warmest summer months of July and August experience their calmest conditions, dipping below 4.0 m/s, showcasing a clear seasonal trend where wind speeds are generally highest in winter and spring, peaking at 4.9 m/s in February. This rhythmic ebb and flow of wind speed not only influences maritime activities but also paints a picturesque backdrop for the coastal town, turning gentle December gales into a serene conclusion of the year.

Average December Wind Speed in Sea Isle City

The chart displays monthly wind speed patterns in Sea Isle City, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.34.94.74.54.13.83.53.14.04.34.64.0 m/s
Data source: Sea Isle City December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Sea Isle City Compares to Other Months

The weather in Sea Isle City 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 Sea Isle City and find detailed weather information for every month.

In December, the weather features a wider temperature range, with minimums dropping to -9°C (16°F) and maximums reaching up to 18°C (65°F), resulting in an average temperature of 6°C (43°F). The month experiences substantial precipitation, averaging 108 mm (4.2 in) over 10 days, and maintains a relatively high humidity level of 81%. In contrast, January sees even colder temperatures, with minimums falling to -13°C (8°F) and an average of 3°C (38°F), while maximum temperatures slightly decrease to 17°C (64°F). Additionally, January has lower precipitation levels of 68 mm (2.7 in) over 9 days and a humidity of 83%. For more specifics on the weather conditions in January, you can visit Sea Isle City weather in January.

December and February exhibit similar weather patterns, but with distinct differences in temperature and overall climate conditions. In December, temperatures range from a minimum of -9°C (16°F) to a maximum of 18°C (65°F), averaging around 6°C (43°F), while February experiences slightly cooler temperatures, with a minimum of -13°C (9°F) and a maximum of 19°C (66°F), averaging 5°C (41°F). Precipitation levels are relatively close, with December receiving 108 mm (4.2 in) over about 10 days, and February seeing slightly less at 102 mm (4.0 in) over 11 days. Humidity remains high in both months, with December at 81% and February at 82%. For more specific information about February weather in Sea Isle City, you can refer to Sea Isle City weather in February.

In December, the weather is characterized by colder temperatures, with a minimum of -9°C (16°F) and an average of 6°C (43°F), reaching a maximum of 18°C (65°F). The month sees significant precipitation, totaling 108 mm (4.2 in) over about 10 days, accompanied by high humidity levels of 81%. In contrast, March experiences slightly milder temperatures, ranging from a minimum of -7°C (20°F) to an average of 7°C (45°F) and peaking at 24°C (75°F). Precipitation remains similar at 105 mm (4.1 in) across the same number of wet days, with humidity levels holding steady at 81%. For more detailed information on March weather, you can visit Sea Isle City weather in March.

In December, Sea Isle City experiences a chilly winter climate, with temperatures ranging from a brisk -9°C (16°F) at night to a mild 18°C (65°F) during the day. The month sees a fair amount of precipitation, totaling 108 mm (4.2 in) over about 10 days, and high humidity levels of 81%, contributing to a damp and cool atmosphere.

In contrast, April brings a refreshing transition into spring, with temperatures rising significantly. The minimum temperature is a cool 1°C (34°F), while the average reaches 12°C (54°F) and can peak at a warm 27°C (81°F). Although April has slightly less precipitation at 94 mm (3.7 in) across 12 days, the humidity remains relatively similar at 79%. For more specific insights on the weather in Sea Isle City, check out Sea Isle City weather in April.

December and May present strikingly different weather patterns. In December, temperatures range from a chilly minimum of -9°C (16°F) to a milder maximum of 18°C (65°F), with an average temperature of 6°C (43°F). The month sees significant precipitation, averaging 108 mm (4.2 in) across about 10 days, contributing to a high humidity level of 81%. In contrast, May offers a more temperate climate, with temperatures starting at a minimum of 4°C (40°F) and peaking at a warm 30°C (86°F), resulting in a much more pleasant average of 17°C (62°F). Rainfall in May is slightly higher at 112 mm (4.4 in) over 11 days, but the humidity is lower at 74%. For a more detailed insight into May weather, check out Sea Isle City weather in May.

In December, Sea Isle City experiences colder temperatures, with a minimum of -9°C (16°F) and an average of 6°C (43°F), peaking at a maximum of 18°C (65°F). The month is characterized by significant precipitation of 108 mm (4.2 in) over about 10 days, accompanied by relatively high humidity levels of 81%. In stark contrast, June offers milder and warmer conditions, with minimum temperatures of 11°C (53°F) and an average of 22°C (72°F), reaching highs of 31°C (89°F). Rainfall decreases to 76 mm (3.0 in) over the same number of days, while humidity remains slightly lower at 77%. For a more detailed look at weather conditions in June, you can visit Sea Isle City weather in June.

December and July present starkly contrasting weather patterns. In December, temperatures can plummet as low as -9°C (16°F), with an average of 6°C (43°F) and maximums reaching 18°C (65°F). The month experiences significant precipitation of 108 mm (4.2 in) over about 10 days, along with relatively high humidity levels at 81%. Conversely, July boasts much warmer conditions, with minimum temperatures around 17°C (64°F), an average of 26°C (78°F), and maximums soaring to 34°C (93°F). While July also sees precipitation, it is slightly higher at 130 mm (5.1 in) across 11 days, and humidity dips to 76%. The differences in temperature and precipitation between these two months highlight the seasonal variations. For more details, check out Sea Isle City weather in July.

December and August present markedly different weather patterns. In December, temperatures range from a chilly -9°C (16°F) to a mild maximum of 18°C (65°F), with an average of 6°C (43°F). The month sees significant precipitation, totaling 108 mm (4.2 in) over approximately 10 days, coupled with high humidity levels at 81%. In contrast, August boasts much warmer conditions, with minimum temperatures around 17°C (64°F) and maximums reaching 32°C (90°F), resulting in an average temperature of 25°C (77°F). August also experiences slightly higher precipitation at 118 mm (4.6 in), though spread over more days—15 in total—with a bit lower humidity at 77%. For more details on the weather conditions during this summer month, check out Sea Isle City weather in August.

When comparing the weather in December and September, notable differences emerge in temperature and humidity. December experiences significantly cooler temperatures, with a minimum of -9°C (16°F) and an average of 6°C (43°F), while September boasts much warmer conditions, starting from a minimum of 11°C (53°F) and averaging 22°C (72°F). Additionally, September's maximum temperature can reach up to 31°C (88°F), creating a stark contrast with December's peak of 18°C (65°F). Precipitation levels in both months are similar, with December receiving 108 mm (4.2 in) and September slightly higher at 113 mm (4.4 in), both occurring on about 10 days. Humidity is also higher in December at 81%, compared to September's 74%. For a more detailed look at September's weather, you can visit Sea Isle City weather in September.

Comparing the weather in December and October reveals notable differences in temperature and precipitation patterns. In December, temperatures range from a chilly minimum of -9°C (16°F) to a mild maximum of 18°C (65°F), with an average of 6°C (43°F). In contrast, October boasts much warmer conditions, with temperatures varying from a minimum of 5°C (42°F) to a maximum of 31°C (88°F), averaging around 17°C (63°F). Additionally, December experiences higher humidity at 81% compared to October's 75%, and while December sees about 108 mm (4.2 in) of precipitation over 10 days, October has slightly more rainfall at 133 mm (5.3 in) across 8 days. For a detailed look at October weather specifics, visit Sea Isle City weather in October.

In December, the weather becomes noticeably colder compared to November, with average temperatures dropping from 10°C (50°F) to 6°C (43°F). The minimum temperature in December reaches -9°C (16°F), while November's lowest temperature is slightly warmer at -6°C (22°F). Additionally, December experiences more precipitation, totaling 108 mm (4.2 in) over 10 days, compared to November's 81 mm (3.2 in) over 7 days. Both months have similar humidity levels, around 81% for December and 80% for November. For a detailed look at November's weather patterns, you can visit Sea Isle City weather in November.

Compare Sea Isle City's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Sea Isle City

As December ushers in the heart of winter in Sea Isle City, the weather contrasts sharply with the milder fall months. Temperatures dip significantly, ranging from crisp mornings to chillier afternoons, making the average feel much colder. The increased humidity coupled with the precipitation days—often bringing rain—adds a wintry mix to the coastal atmosphere, setting the stage for a serene yet brisk environment. This shift not only invites visitors to bundle up but also paints a picturesque backdrop that is uniquely charming. For those interested in the broader climate trends, you can explore more at Sea Isle City Climate.