December Weather in Port Aransas, United States

Last updated: February 24, 2025

In December, Port Aransas, United States, experiences mild and varied weather, with maximum temperatures reaching 24°C (75°F) and an average of 18°C (64°F). The month sees a cool minimum of 5°C (41°F), making it a comfortable yet brisk time to visit. Visitors should be prepared for occasional precipitation, as the area receives about 55 mm (2.2 in) of rain over 7 days, contributing to a relatively high humidity level of 80%. Whether you're strolling the beach or exploring local attractions, December offers a refreshing coastal experience.

December Temperature in Port Aransas

In December, Port Aransas showcases a delightful transition into cooler weather, with temperatures exhibiting a comfortable range. The month features a minimum of 5°C (41°F) and a pleasant average of 18°C (64°F), rising to a maximum of 24°C (75°F). This gradual decline from the mild conditions of November, where the average was slightly higher at 21°C (69°F), marks a clear shift toward the winter season. While the chill sets in, December remains relatively moderate compared to the more extreme winter temperatures seen in other regions, allowing locals and visitors alike to enjoy the charm of this coastal town amidst its festive spirit. Overall, December's temperatures affirm Port Aransas as a comfortable and inviting winter escape, where brisk breezes meet ample sunshine.

December Weather in Port Aransas: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Port Aransas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec616167727882838482776964
Data source: Temperature data for Port Aransas 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 Port Aransas

In December, Port Aransas experiences a moderate ebb in precipitation, with 55 mm (2.2 in) of rainfall across 7 days. This amount reflects a gradual decrease compared to the wettest months earlier in the year, particularly the peak of 177 mm (7.0 in) in September. December's rainfall is also lower than the preceding months, such as 64 mm (2.5 in) in November, suggesting a trend of diminishing precipitation as the year draws to a close. The typically mild coastal climate continues to offer a balance of dry days amidst the drizzles, marking a transition towards drier winter conditions while still retaining a significant amount of moisture.

December Precipitation Trends in Port Aransas

The chart displays monthly precipitation patterns in Port Aransas, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4844524814314612576177976455
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Port Aransas

In December, Port Aransas experiences a humidity level of 80%, continuing the relatively consistent trend seen throughout the year. The humidity remains comparably high, peaking in February at 82% and dipping slightly in the warmer months, with June, October, and July recording the lowest at 77%. Overall, a narrow range between 77% and 82% suggests that the coastal air remains fairly moist year-round, providing a comforting embrace of humidity that characterizes this charming destination, even as the year draws to a close.

December Average Humidity in Port Aransas

This chart illustrates the average monthly humidity levels in Port Aransas, 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.
JanFebMarAprMayJunJulAugSepOctNovDec78%82%79%82%81%77%78%78%79%77%78%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Port Aransas

As winter settles in, Port Aransas sees a decline in the UV Index, dropping to a moderate level of 5 in December, with a recommended burn time of 30 minutes. This marks a notable decrease from the extreme and very high levels experienced in the summer months, where values reaching as high as 12 demanded caution and limited sun exposure. The trend showcases a gradual reduction from the intense sunshine of the earlier months, making December a more forgiving time for outdoor activities. However, even with the lower UV levels, it’s always prudent to stay informed about sun safety. For more detailed information, visit Port Aransas UV Index.

Maximum UV Index Levels in Port Aransas for December

The chart shows the monthly maximum UV Index (UVI) for Port Aransas 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.
JanFebMarAprMayJunJulAugSepOctNovDec689111112121211975
Data source: Port Aransas 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 Port Aransas

As December approaches in Port Aransas, the trend of abundant sunshine begins to gracefully recede, yet the coastal charm remains vibrant. With 236 hours of sunlight, this month provides a gentle transition from the peak brilliance experienced earlier in the year. June and July stand out as the sunniest months, boasting over 330 hours, while the warmth of May bathes the island in nearly 318 hours of light. Although December’s sunshine is less dazzling than summer, it still captures the essence of the area's steady, moderate climate—inviting visitors to enjoy its serene beauty. Autumn gives way to the mellow sun of winter, allowing locals and travelers alike to bask in a tranquil, sun-kissed atmosphere as the year draws to a close.

Monthly Sunshine Duration in Port Aransas: December Highlighted

The December sunshine duration represents the total number of hours Port Aransas 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.
JanFebMarAprMayJunJulAugSepOctNovDec176h189h251h278h318h332h331h330h285h286h245h236h
Data source: Port Aransas December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Port Aransas During December

In December, Port Aransas enjoys a 44% chance of sunny weather, which is a notable continuation of the generally mild sunshine seen in the fall months. This December percentage, while lower than the peak of 60% in September and 59% in October, still reflects a favorable outlook for outdoor activities. The data suggests a gradual decline in sunny days as the year winds down, with only March and April earlier in the year offering slightly brighter prospects at 45% and 41%, respectively. Overall, December presents a balanced opportunity for sun-seekers to enjoy the charming coastal ambiance of Port Aransas, despite the encroaching winter chill.

Percentage of Sunny Days in December in Port Aransas

The chart illustrates the percentage of sunny days in Port Aransas 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 Port Aransas experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec48%38%45%41%44%48%31%41%60%59%54%44%
Data source: Port Aransas December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Port Aransas in December

As December settles into Port Aransas, daylight hours retreat to 10 hours a day, mirroring the transition seen in November. This marks the tail end of a gradual decline that began after the summer months, where Port Aransas enjoyed a peak of 13 hours of daylight from June to August. Following this summer surge, the days shorten steadily, leading to a slight increase again in February, when daylight creeps up to 11 hours. This cyclical pattern of daylight not only highlights the region's beautiful seasonal variations but also invites residents and visitors alike to embrace cozy winter moments as the sun dips a little earlier each day.

Average Daylight Hours in Port Aransas for December

The chart illustrates the variation in daylight duration in Port Aransas throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 35m11h 12m12h12h 50m13h 31m13h 51m13h 40m13h 4m12h 16m11h 27m10h 44m10h 23m
Data source: Port Aransas daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Port Aransas

In Port Aransas, December brings an average wind speed of 6.4 m/s (14 mph), marking a gentle return to the breezier conditions experienced earlier in the year. Following a trend of gradually diminishing winds from summer's high points, December's velocity showcases a subtle uptick compared to November's 5.8 m/s (13 mph), providing a refreshing contrast to the calmer months of late summer and early fall. This seasonal shift invites both locals and visitors to enjoy the invigorating coastal atmosphere, reminding us of the steady dance between the winds of winter and the warmth of the Texas sun. Overall, as the year draws to a close, December's breezes breathe new life into the landscape, setting the stage for a vibrant holiday season.

Average December Wind Speed in Port Aransas

The chart displays monthly wind speed patterns in Port Aransas, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.16.86.36.77.05.85.65.45.45.55.86.4 m/s
Data source: Port Aransas December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Port Aransas Compares to Other Months

The weather in Port Aransas 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 Port Aransas and find detailed weather information for every month.

December weather typically features a milder range of temperatures compared to January, with minimums around 5°C (41°F) and maximums reaching up to 24°C (75°F). In contrast, January sees cooler minimum temperatures of 1°C (33°F), although it can occasionally reach a similar maximum of 25°C (77°F). While December experiences slightly more precipitation at 55 mm (2.2 in) over 7 days, January has a close 48 mm (1.9 in) with the same number of rainy days. Humidity levels remain relatively high in both months, with December at 80% and January slightly lower at 78%. For more detailed insights, check out the Port Aransas weather in January.

December and February exhibit notable differences in weather patterns. In December, temperatures generally range from a minimum of 5°C (41°F) to a maximum of 24°C (75°F), with an average of 18°C (64°F). Precipitation is relatively higher, totaling 55 mm (2.2 in) across 7 days, and humidity stands at 80%. In contrast, February experiences cooler conditions, with temperatures dipping as low as -4°C (26°F) but having a similar maximum of 23°C (74°F) and an average of 16°C (61°F). Although February sees less precipitation at 44 mm (1.7 in) over 9 days, the humidity is slightly higher at 82%. For a detailed look at February weather, you can refer to Port Aransas weather in February.

In December, the weather features a mild temperature range with minimums around 5°C (41°F) and maximums reaching 24°C (75°F). The average temperature is a comfortable 18°C (64°F), accompanied by 55 mm (2.2 in) of precipitation over approximately 7 days and humidity levels at 80%. In comparison, March boasts similarly mild conditions, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 26°C (78°F) and an average of 19°C (67°F). Precipitation in March is slightly lower at 51 mm (2.0 in), occurring over about 6 days, and humidity remains comparable at 79%. Overall, both months provide a pleasant climate, but March tends to be a touch warmer and drier. For more detailed information, visit Port Aransas weather in March.

December and April showcase distinct weather characteristics. In December, temperatures range from a minimum of 5°C (41°F) to a maximum of 24°C (75°F), averaging around 18°C (64°F). The month experiences 55 mm (2.2 in) of precipitation over about 7 days, with humidity reaching 80%. In contrast, April boasts milder weather, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 29°C (85°F) and an average of 22°C (72°F). While April has slightly less precipitation at 48 mm (1.9 in) over 6 days, humidity remains relatively constant at 82%. For more information, check out Port Aransas weather in April.

In December, the weather is generally mild, with average temperatures ranging from a minimum of 5°C (41°F) to a maximum of 24°C (75°F). The month sees about 55 mm (2.2 in) of precipitation over approximately 7 days, and humidity hovers around 80%. In contrast, May is significantly warmer, boasting temperatures that range from a minimum of 19°C (67°F) to a maximum of 28°C (83°F), with an average temperature of 25°C (78°F). However, May experiences more precipitation, totaling 143 mm (5.6 in) over about 9 days, while humidity remains similar at 81%. For more details, visit Port Aransas weather in May.

When comparing the weather in December and June, it’s clear that these months present very different climates. December features milder temperatures, with a minimum of 5°C (41°F) and a maximum reaching 24°C (75°F), contributing to an average of 18°C (64°F). With 55 mm (2.2 in) of precipitation over about 7 days and humidity levels around 80%, December tends to be a cooler and wetter month.

In contrast, June boasts much warmer temperatures, with a minimum of 23°C (74°F) and a maximum of 32°C (91°F), leading to a comfortable average of 28°C (82°F). However, this month experiences significantly more rainfall, totaling 146 mm (5.7 in) over approximately 11 days, while maintaining slightly lower humidity at 77%. For more details on the specifics of June weather, you can check Port Aransas weather in June.

In December, the weather in Port Aransas is mild, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 24°C (75°F), and an average of 18°C (64°F). This month experiences around 55 mm (2.2 in) of precipitation over approximately 7 days, accompanied by a relatively high humidity level of 80%. In contrast, July sees significantly warmer conditions, with minimum temperatures averaging 25°C (77°F) and maxing out at 31°C (88°F). The average temperature in July is 28°C (83°F), and the region receives a higher amount of rainfall, with 125 mm (4.9 in) spread over about 9 days. The humidity during July is slightly lower at 78%. For more detailed information, check out Port Aransas weather in July.

When comparing the weather in December and August, we see stark contrasts. December experiences milder temperatures, with a minimum of 5°C (41°F) and a maximum of 24°C (75°F), while August boasts much warmer conditions with a minimum of 24°C (75°F) and a peak of 31°C (88°F). Precipitation is slightly higher in August, with 76 mm (3.0 in) over 9 days, compared to December's 55 mm (2.2 in) spread across 7 days. Humidity levels are quite similar, with December at 80% and August at 78%. For more detailed insights, you can check out Port Aransas weather in August.

When comparing the weather between December and September, it's clear that December offers much cooler temperatures, with a minimum of 5°C (41°F) and an average of 18°C (64°F), contrasted with September's warmer range, where temperatures start at a minimum of 21°C (70°F) and peak at an average of 28°C (82°F). Additionally, December experiences less precipitation, totaling 55 mm (2.2 in) over 7 days, while September is significantly wetter, receiving 177 mm (7.0 in) across 16 days. Humidity remains fairly similar, with December at 80% and September slightly lower at 79%. For more details about September's weather, you can explore Port Aransas weather in September.

When comparing the weather in December to that of October, notable differences emerge. December typically presents milder temperatures, with a minimum of 5°C (41°F) and a maximum of 24°C (75°F), averaging around 18°C (64°F). In contrast, October enjoys warmer temperatures, reaching a minimum of 12°C (54°F) and soaring to a maximum of 30°C (86°F), with an average of 25°C (77°F). Precipitation also varies between the two months, with October experiencing higher rainfall at 97 mm (3.8 in) over 12 days, compared to December’s 55 mm (2.2 in) over 7 days. Humidity levels remain relatively high, with December at 80% and October slightly lower at 77%. For a more detailed look at the weather specifics in October, you can check Port Aransas weather in October.

In comparing the weather between November and December, we see a slight decrease in temperatures as December's minimum temperature drops to 5°C (41°F) from November's 6°C (43°F). The average temperature in December is 18°C (64°F), which is 3°C cooler than November's average of 21°C (69°F), and the maximum temperature also sees a decline from 27°C (80°F) in November to 24°C (75°F) in December. Precipitation is somewhat lower in December, with 55 mm (2.2 in) over 7 days, compared to November's 64 mm (2.5 in) over 8 days. Humidity remains similar, with December at 80% and November at 78%. For more details on November's weather, visit Port Aransas weather in November.

Compare Port Aransas's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Port Aransas

As December settles over Port Aransas, the weather takes on a distinct character compared to the warmer months. With milder temperatures and increased humidity, visitors can expect a more refreshing chill in the air, perfect for those seeking relief from the summer heat. While rainfall emerges more frequently during this month, the overall climate remains pleasant, offering a unique blend of sunny days and cozy evenings. For a deeper dive into how December fits into the larger picture of Port Aransas' weather patterns, check out Port Aransas Climate.