December Weather in Oak Bluffs, United States

Last updated: February 24, 2025

December in Oak Bluffs, United States, showcases a chill in the air as temperatures vary from a maximum of 16°C (61°F) to a frigid minimum of -12°C (11°F), with an overall average resting at 4°C (40°F). The month sees 129 mm (5.1 in) of precipitation spread across 11 days, contributing to an 80% humidity level that envelops the region in a moist embrace. This blend of cool temperatures and regular rainfall creates the perfect backdrop for cozy winter activities and picturesque landscapes, making it a unique time to experience the beauty of Oak Bluffs.

December Temperature in Oak Bluffs

In December, Oak Bluffs experiences a notable transition as winter blankets the region. With temperatures ranging from a chilly minimum of -12°C (11°F) to a comfortable maximum of 16°C (61°F), the average temperature settles around 4°C (40°F). This month marks a significant drop from the milder autumn, as reflected in November's higher averages. As the year draws to a close, the crisp air and frosty nights beckon a cozy atmosphere, perfect for holiday gatherings and seasonal festivities. Despite the chill, the peaks of 16°C reflect the region's climate variability, reminding visitors of the beauty in cool winter days by the coast.

December Weather in Oak Bluffs: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Oak Bluffs, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec353638465463717267604940
Data source: Temperature data for Oak Bluffs 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 Oak Bluffs

December in Oak Bluffs experiences a significant precipitation total of 129 mm (5.1 in), marking it as one of the wetter months of the year. This month sees an average of 11 days of rainfall, making it slightly more consistent in wet weather compared to the preceding months, like November with its 10 rainy days. Interestingly, the rainfall in December reflects a trend of increasing precipitation as the year wraps up, with totals higher than those in the summer months, such as July and August, which receive notably less rain. This uptick in precipitation signals a shift towards a wetter winter season, as Oak Bluffs transitions from the relatively dry summer months into the more humid and rainy atmosphere of winter.

December Precipitation Trends in Oak Bluffs

The chart displays monthly precipitation patterns in Oak Bluffs, 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.
JanFebMarAprMayJunJulAugSepOctNovDec93118116134119908486117168103129
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Oak Bluffs

In Oak Bluffs, December ushers in a humidity level of 80%, maintaining a slight increase from the previous month. Throughout the year, a noticeable trend emerges, where humidity peaks in the colder months, particularly in January and February at 84%. As spring approaches, humidity begins to gradually decline, with the lowest point reached in May at 75%. The summer months see a modest rise again, hovering around 76-78%, before experiencing another uptick in November. December's humidity reflects this yearly pattern, positioning the month as part of the region’s damp winter season. The data illustrates how Oak Bluffs experiences a dynamic humidity landscape, with the chillier months consistently exhibiting higher moisture levels.

December Average Humidity in Oak Bluffs

This chart illustrates the average monthly humidity levels in Oak Bluffs, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%82%79%75%78%76%76%76%75%80%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Oak Bluffs

As December rolls into Oak Bluffs, the UV Index drops to a low level of 2, indicating a noticeable shift from the intense sunlight of the summer months. This reduction not only extends the safe burn time to an impressive 45 minutes but also encourages residents and visitors to embrace the cooler, more comfortable outdoor activities without the urgency of heavy sun protection. Notably, after months of very high UV exposure from April through September, December reminds us to transition our skincare routines while still enjoying the outdoors. For detailed insights on UV radiation levels throughout the year, check out Oak Bluffs UV Index.

Maximum UV Index Levels in Oak Bluffs for December

The chart shows the monthly maximum UV Index (UVI) for Oak Bluffs 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.
JanFebMarAprMayJunJulAugSepOctNovDec3468910998642
Data source: Oak Bluffs 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 Oak Bluffs

In Oak Bluffs, the December sunshine is a gentle prelude to winter, offering 165 hours of daylight that contrasts with the brighter months preceding it. As the year unfolds, a clear trend emerges: sunshine hours peak during the summer months, with July boasting a vibrant 346 hours. However, as autumn approaches, the sunlight gradually dwindles, culminating in December's cozy glow. This pattern highlights the idyllic coastal charm of the area, where even in the darker days of winter, the spirit of summer lingers in the air, inviting residents and visitors alike to enjoy the serene beauty of this seasonal transition.

Monthly Sunshine Duration in Oak Bluffs: December Highlighted

The December sunshine duration represents the total number of hours Oak Bluffs 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.
JanFebMarAprMayJunJulAugSepOctNovDec142h184h258h243h298h326h346h330h280h236h203h165h
Data source: Oak Bluffs December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Oak Bluffs During December

In Oak Bluffs, December brings a notable decline in the likelihood of sunny weather, with only a 29% chance of sunshine. This figure stands out as one of the lowest in the annual cycle, particularly following a comparatively brighter November, which enjoys a 54% chance of sun. As the year progresses, the trend reflects fluctuating sunshine opportunities, with the spring months boasting the highest chances—March peaks at 60%. However, as winter sets in, the sunshine tends to fade, making December a notably gray month. For those seeking brighter days, it’s wise to plan ahead, as the sun’s appearances become increasingly scarce as the year draws to a close.

Percentage of Sunny Days in December in Oak Bluffs

The chart illustrates the percentage of sunny days in Oak Bluffs 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 Oak Bluffs experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec41%31%60%46%41%38%41%36%50%45%54%29%
Data source: Oak Bluffs December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Oak Bluffs in December

In Oak Bluffs, United States, the daylight duration reveals a captivating seasonal rhythm. As autumn settles in, daylight begins to wane, dipping to 9 hours in both November and December. This marks a significant contrast to the vibrant 15 hours experienced in June, the peak of summer. Moving into winter, the shorter days herald a time for cozy gatherings and reflective moments. Following December, the daylight hours gradually increase, signaling the return of longer days and the promise of spring's arrival. Each month offers a beautiful transition, showcasing the natural ebb and flow of light throughout the year.

Average Daylight Hours in Oak Bluffs for December

The chart illustrates the variation in daylight duration in Oak Bluffs throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 32m10h 36m11h 58m13h 21m14h 32m15h 7m14h 48m13h 45m12h 25m11h 2m9h 49m9h 12m
Data source: Oak Bluffs daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Oak Bluffs

As December rolls into Oak Bluffs, the wind begins to whisper a gentle farewell to the year, averaging 6.4 m/s (14 mph). This slight drop from autumn's 6.6 m/s reflects a seasonal shift, as the winds soften ahead of winter's chill. Throughout the year, wind speeds generally decline from their peak during the winter months to the more placid summer breezes, where July and August reach a cozy 5.2 m/s (12 mph) and 4.9 m/s (11 mph), respectively. The steady return to seasonal averages indicates that while December's winds may be mellowing, they still carry the essence of resilience found in New England’s coastal charm.

Average December Wind Speed in Oak Bluffs

The chart displays monthly wind speed patterns in Oak Bluffs, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.86.76.86.56.16.15.24.95.96.66.66.4 m/s
Data source: Oak Bluffs December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Oak Bluffs Compares to Other Months

The weather in Oak Bluffs 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 Oak Bluffs and find detailed weather information for every month.

December and January showcase a distinct contrast in weather patterns. December experiences a milder average temperature of 4°C (40°F), with maximums reaching 16°C (61°F), while January is cooler, averaging 2°C (35°F) and peaking at 13°C (55°F). Precipitation is more abundant in December, totaling 129 mm (5.1 in) over 11 days, compared to January’s 93 mm (3.7 in) across 9 days. Additionally, humidity levels are slightly higher in January at 84%, compared to December's 80%. For more specific insights, visit Oak Bluffs weather in January.

In December, temperatures range from a chilly -12°C (11°F) to a milder maximum of 16°C (61°F), with an average of 4°C (40°F). The month experiences significant precipitation, totaling 129 mm (5.1 in) over 11 days, and humidity levels hover around 80%. In contrast, February sees a slight drop in average temperature to 2°C (36°F), with similar minimums of -12°C (11°F) and a maximum of 12°C (53°F). Precipitation remains comparable at 118 mm (4.6 in) over 12 days, and humidity increases slightly to 84%. For more detailed weather insights, check out Oak Bluffs weather in February.

In comparing the weather between December and March, we can see some notable similarities and differences. December tends to be colder, with minimum temperatures dropping to -12°C (11°F) and average temperatures around 4°C (40°F), while March offers slightly milder conditions with minimums of -9°C (17°F) and an average of 3°C (38°F). Both months experience significant humidity levels, with December at 80% and March slightly higher at 82%. Precipitation levels are relatively close, with December seeing 129 mm (5.1 in) over 11 days and March recording 116 mm (4.6 in) across 10 days. For a more detailed look at the weather conditions during March, visit Oak Bluffs weather in March.

In December, the weather is generally colder, with temperatures ranging from a minimum of -12°C (11°F) to a maximum of 16°C (61°F), and an average of 4°C (40°F). The month experiences significant precipitation, totaling 129 mm (5.1 in) over 11 days, accompanied by high humidity at 80%. In contrast, April sees a milder climate, with temperatures starting at a minimum of 1°C (33°F) and reaching up to 16°C (61°F), averaging 8°C (46°F). Precipitation slightly increases to 133 mm (5.3 in) over 12 days, while humidity remains similar at 79%. As a result, April feels more temperate compared to the chill of December, even though both months share similar maximum temperatures. For more information, you can check Oak Bluffs weather in April.

In December, the weather is characterized by colder temperatures, with a minimum of -12°C (11°F) and an average of around 4°C (40°F), peaking at 16°C (61°F). The month receives significant precipitation, averaging 129 mm (5.1 in) over about 11 days, alongside high humidity at 80%. Conversely, May offers a more temperate climate, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 20°C (67°F) and an average of 12°C (54°F). Precipitation is slightly less, totaling 119 mm (4.7 in) over 13 days, and humidity is lower at 75%. For a detailed look at the specifics of May weather, you can visit Oak Bluffs weather in May.

December and June present starkly contrasting weather conditions. December experiences chilly temperatures, with a minimum of -12°C (11°F) and an average of only 4°C (40°F), while June boasts milder weather, with temperatures ranging from a minimum of 11°C (52°F) to an average of 17°C (63°F). In December, precipitation is relatively high at 129 mm (5.1 in) over 11 days, contributing to a humid atmosphere with 80% humidity. Conversely, June sees less precipitation at 90 mm (3.5 in) over 10 days and slightly lower humidity levels at 78%. For a closer look at the pleasant June weather, you can check Oak Bluffs weather in June.

December and July present contrasting weather conditions. In December, temperatures can plummet to a minimum of -12°C (11°F) and average around 4°C (40°F), with a maximum reaching 16°C (61°F). The month is typically wet, receiving 129 mm (5.1 in) of precipitation over 11 days and featuring high humidity levels at 80%. In contrast, July enjoys much warmer weather, with temperatures ranging from a minimum of 16°C (61°F) to an average of 22°C (71°F), and a maximum of 27°C (81°F). This summer month sees less rainfall, totaling 84 mm (3.3 in) over just 9 days, with slightly lower humidity at 76%. For more detailed insights, you can check Oak Bluffs weather in July.

December and August present stark contrasts in weather conditions. In December, temperatures can plunge to a minimum of -12°C (11°F), with an average of 4°C (40°F) and a maximum of 16°C (61°F). This month experiences considerable precipitation, with 129 mm (5.1 in) spread over 11 days and an average humidity of 80%. In contrast, August offers a much milder climate, with temperatures ranging from a minimum of 17°C (63°F) to an average of 22°C (73°F) and a maximum of 26°C (80°F). Precipitation in August is lower at 86 mm (3.4 in) falling on about 9 days, and humidity sits slightly lower at 76%. For more details on the weather in August, you can refer to Oak Bluffs weather in August.

The weather in December presents a stark contrast to September, with temperatures significantly lower across the board. In December, the average temperature hovers around 4°C (40°F), with minimums dipping as low as -12°C (11°F), while September enjoys a milder average of 20°C (67°F) and max temperatures reaching up to 25°C (78°F). Precipitation levels are relatively similar, with December receiving 129 mm (5.1 in) over 11 days, compared to September's 117 mm (4.6 in) over 10 days. Additionally, December's higher humidity at 80% adds to the chill, while September's 75% humidity creates a more comfortable atmosphere. For those interested in the specifics of September's weather, you can find more information here: Oak Bluffs weather in September.

In comparing the weather between December and October, we see notable differences in both temperature and precipitation. December experiences a broader temperature range, with minimums dropping to -12°C (11°F) and maximums reaching 16°C (61°F), resulting in an average of 4°C (40°F). In contrast, October boasts milder conditions, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 22°C (72°F), leading to a pleasant average of 15°C (60°F). Additionally, October sees slightly higher precipitation at 168 mm (6.6 in) across 12 days, compared to December's 129 mm (5.1 in) over 11 days. October’s humidity is also lower at 75%, compared to December’s higher level of 80%. For more specific details, you can check Oak Bluffs weather in October.

December and November exhibit distinct differences in weather patterns. December generally feels colder, with minimum temperatures dropping to -12°C (11°F) compared to November's -6°C (21°F). The average temperature in December is around 4°C (40°F), while November boasts a milder average of 9°C (49°F). Despite December receiving more precipitation—129 mm (5.1 in) across 11 days—it maintains a constant humidity level of 80%, similar to November's 80% as well. Both months experience a similar amount of rainy days, but overall, December presents a chillier and wetter atmosphere. For more detailed insights, check Oak Bluffs weather in November.

Compare Oak Bluffs's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Oak Bluffs

As December settles in Oak Bluffs, the weather takes on a unique character, contrasting sharply with the milder conditions of earlier months. Daytime temperatures tend to hover around a chilly average of 4°C (40°F), while nighttime chills can drop as low as -12°C (11°F), creating a distinct winter ambiance that's perfect for cozy gatherings by the fire. The month also sees an increase in precipitation, with about 11 days of rain contributing to a total of 129 mm (5.1 in). High humidity levels at 80% further amplify the frosty feel. For those looking to explore the seasonal changes, Oak Bluffs offers a captivating winter landscape that invites both reflection and adventure. To learn more about the weather patterns throughout the year, visit Oak Bluffs Climate.