December Weather in Marathon, United States

Last updated: February 24, 2025

In December, Marathon, United States experiences a mild and humid climate, with average temperatures hovering around 23°C (74°F). Daily highs can reach up to 26°C (80°F), while nighttime lows dip to around 14°C (58°F), creating a comfortable overall atmosphere for outdoor activities. However, residents and visitors should be prepared for occasional rain, as the month typically sees about 44 mm (1.7 in) of precipitation over approximately 7 days. With humidity levels averaging 81%, the air carries a refreshing maritime feel, perfect for enjoying the scenic surroundings.

December Temperature in Marathon

In Marathon, United States, December ushers in a mild winter, with temperatures reflecting a steady and pleasant climate. With minimums around 14°C (58°F) and averages reaching up to 23°C (74°F), this month offers a comfortable respite from harsher winter conditions found elsewhere. The daily highs can still climb to a pleasant 26°C (80°F), making it an inviting time for outdoor activities. As the year winds down, December showcases a gradual cooling trend compared to the warmer months, yet maintains a reassuring warmth that is characteristic of this laid-back tropical paradise. Overall, December in Marathon perfectly balances comfort and charm, inviting visitors to embrace the season in a delightful coastal setting.

December Weather in Marathon: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Marathon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec717474777982838382817773
Data source: Temperature data for Marathon generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Marathon

In Marathon, United States, December experiences a notable shift in precipitation patterns, wrapping up the year with an average of 44 mm (1.7 in) of rain over approximately 7 days. This marks a decrease compared to the wetter months preceding it, particularly September, which stands out with its 200 mm (7.9 in) of rainfall. Following a trend of peak precipitation in the summer and early fall, December's milder rainfall signifies a transition into the drier winter months, after the region grapples with the heavy downpours typical of mid-year. Overall, the holiday season in Marathon is marked by cooler temperatures and occasional showers, offering a refreshing contrast to the previous months' humidity and heat.

December Precipitation Trends in Marathon

The chart displays monthly precipitation patterns in Marathon, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2428224414210590962001316944
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Marathon

In December, Marathon, Florida experiences a humidity level of 81%, mirroring January's damp conditions. Throughout the year, a noticeable trend emerges: humidity tends to decrease from a high of 81% in the winter months to a low of 69% in June, before gradually rising again as the year draws to a close. This seasonal fluctuation indicates a tendency for higher humidity in winter, reflecting the area's subtropical climate. As we transition from November to December, humidity levels stabilize, suggesting that residents can expect a familiar, humid atmosphere that characterizes this coastal paradise during the holiday season.

December Average Humidity in Marathon

This chart illustrates the average monthly humidity levels in Marathon, 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.
JanFebMarAprMayJunJulAugSepOctNovDec81%80%76%73%71%70%70%72%76%79%80%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Marathon

In Marathon, Florida, the UV Index shows a clear trend throughout the year, peaking during the summer months with levels reaching as high as 13 in June. This extreme radiation translates to a perilous burn time of just 10 minutes for those unprotected. As we transition into December, the UV Index drops to 6, categorized as high, allowing for a more forgiving burn time of 25 minutes. This decrease indicates that while sun exposure remains significant, it's notably safer compared to the intensities of mid-year. For those looking to enjoy the outdoors while staying mindful of sun safety, December offers a brief respite from the extremes. For more detailed insights, visit Marathon UV Index.

Maximum UV Index Levels in Marathon for December

The chart shows the monthly maximum UV Index (UVI) for Marathon 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.
JanFebMarAprMayJunJulAugSepOctNovDec79101212131212121086
Data source: Marathon 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 Marathon

In Marathon, United States, December offers a delightful respite from the colder months, basking in 292 hours of sunshine. While this marks a slight dip from the sun-drenched heights of July's impressive 348 hours, it still reflects a trend of generous daylight as the year draws to a close. The sunshine in December is part of a pattern of consistent daylight that begins with a gradual increase in January and peaks in April, creating a vibrant atmosphere that encourages outdoor activities. As the year progresses towards winter, even December's lower totals remain significantly brighter than the beginnings of the year, making it a perfect time to soak up the sun before the approach of winter. Whether you're lounging on the beach or exploring local attractions, Marathon's December sunshine continues to invite an uplifting spirit.

Monthly Sunshine Duration in Marathon: December Highlighted

The December sunshine duration represents the total number of hours Marathon 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.
JanFebMarAprMayJunJulAugSepOctNovDec233h286h333h341h333h320h348h338h318h306h286h292h
Data source: Marathon December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Marathon During December

In Marathon, the likelihood of sunny weather in December stands at an inviting 71%, marking a significant increase compared to the sunniest months of summer, where June, July, and August see much lower probabilities of sunshine ranging between 18% and 31%. This upward trend continues from the latter part of the year, with November also offering a 51% chance of clear skies. As we move into winter, the sunshine returns with a robust showing, making December one of the brighter months. It's an ideal time for outdoor activities, as the sunny forecast promises pleasant experiences against the backdrop of gently cooling temperatures.

Percentage of Sunny Days in December in Marathon

The chart illustrates the percentage of sunny days in Marathon 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 Marathon experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec43%68%67%61%59%18%31%28%35%51%51%71%
Data source: Marathon December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Marathon in December

In Marathon, United States, the daylight duration follows a notable seasonal rhythm. As the year transitions from January to June, residents bask in an increasing amount of sunshine, peaking at 13 hours during the summer months of May, June, and July. However, as summer fades and autumn gives way to winter, the daylight gradually wanes. By December, daylight dips back to 10 hours, mirroring the brevity of January. This cyclical pattern highlights the gradual shift towards shorter days in the latter half of the year, encouraging locals to relish the longer daylight of the warmer months while preparing for the cozy, sun-kissed afternoons of winter.

Average Daylight Hours in Marathon for December

The chart illustrates the variation in daylight duration in Marathon throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 47m11h 19m12h 1m12h 44m13h 20m13h 37m13h 28m12h 56m12h 15m11h 32m10h 55m10h 37m
Data source: Marathon daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Marathon

In Marathon, United States, the December winds signal a gentle shift from the brisk breezes of earlier months, with an average speed of 5.0 m/s (11 mph). This marks a slight decline compared to the more vigorous winds experienced in March and April, where speeds reached 6.6 m/s (15 mph) and 5.9 m/s (13 mph) respectively. A trend of decreasing wind speeds is notable as the year progresses, with December capturing the year's low, following September's calm of 3.5 m/s (8 mph). Overall, December's winds reflect a transition towards the quieter, more serene winter months, complementing the seasonal ambiance of this picturesque coastal town.

Average December Wind Speed in Marathon

The chart displays monthly wind speed patterns in Marathon, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.26.16.65.95.85.64.45.33.55.35.85.0 m/s
Data source: Marathon December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Marathon Compares to Other Months

The weather in Marathon 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 Marathon and find detailed weather information for every month.

December and January exhibit similar temperature trends, with both months experiencing maximums around 26°C (80°F). However, December generally feels slightly warmer with an average temperature of 23°C (74°F), compared to January's average of 22°C (71°F). Precipitation levels decrease significantly from December's 44 mm over 7 days to January's 24 mm over just 4 days, indicating a drier start to the new year. Despite these differences, the humidity remains consistent at 81%, ensuring that the climate retains a tropical feel. For a more detailed look at the weather conditions, check out Marathon weather in January.

In comparing the weather between December and February, both months exhibit similar average temperatures, hovering around 23°C (74°F), with maximum temperatures reaching up to 26°C (80°F). December, however, has slightly cooler minimum temperatures, averaging 14°C (58°F), compared to February's 15°C (59°F). Precipitation levels in December are higher, with 44 mm (1.7 in) over approximately 7 days, while February sees a reduction in rainfall with only 28 mm (1.1 in) across 5 days. Humidity levels remain relatively close, with December at 81% and February at 79%. For a deeper understanding of what to expect in February, check out Marathon weather in February.

In December, the weather features a minimum temperature of 14°C (58°F) and an average of 23°C (74°F) with a maximum of 26°C (80°F). This month experiences higher precipitation with 44 mm (1.7 in) over about 7 days, contributing to a humidity level of 81%. In contrast, March sees slightly warmer temperatures with a minimum of 15°C (60°F) while maintaining the same average and maximum temperatures as December. However, March has significantly lower precipitation at 22 mm (0.9 in) over just 3 days, resulting in a more comfortable humidity level of 76%. For more insights into the specific conditions during March, you can explore Marathon weather in March.

In December, the weather showcases milder temperatures with a minimum of 14°C (58°F) and an average of 23°C (74°F), while reaching a maximum of 26°C (80°F). The month experiences a notable humidity level of 81% and has similar precipitation to April, with 44 mm (1.7 in) over 7 days. In contrast, April boasts warmer temperatures, starting at a minimum of 18°C (65°F) and averaging 25°C (77°F), peaking at 29°C (84°F). Humidity is also lower in April at 73%, creating a more comfortable atmosphere during this month. Interestingly, both months share the same level of rainfall and number of rainy days. For more detailed insights, refer to Marathon weather in April.

In December, the weather is warm with a minimum temperature of 14°C (58°F) and an average of 23°C (74°F), peaking at a comfortable 26°C (80°F). The month experiences a relatively low amount of precipitation, totaling 44 mm (1.7 in) over approximately 7 days, and with humidity levels around 81%, it feels quite humid. In contrast, May brings even warmer temperatures, starting at a minimum of 22°C (72°F) and averaging 26°C (79°F), with a high of 29°C (84°F). However, May is also significantly wetter, featuring 142 mm (5.6 in) of rainfall over 11 days, though humidity drops to 71%, making the overall feel somewhat more pleasant. For more details, you can check the Marathon weather in May.

In December, the weather features a mild climate with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 26°C (80°F), alongside an average of 23°C (74°F). The month sees a moderate level of precipitation at 44 mm (1.7 in) over approximately 7 days, coupled with high humidity levels at 81%. In contrast, June experiences warmer temperatures, with a minimum of 24°C (75°F) and peaks reaching up to 31°C (88°F), averaging around 28°C (82°F). The rainfall is significantly heavier in June at 105 mm (4.1 in), occurring on about 16 days, but the humidity is lower at 69%. For those considering outdoor activities, the climate variations between these months are noteworthy. For more detailed insights into June weather, you can visit Marathon weather in June.

December and July present stark contrasts in weather conditions. In December, temperatures range from a mild 14°C (58°F) at night to a comfortable average of 23°C (74°F) during the day, with highs reaching up to 26°C (80°F). This month experiences relatively low precipitation at 44 mm (1.7 in) over just 7 days, coupled with high humidity levels at 81%. In contrast, July is significantly warmer, with temperatures starting at a minimum of 25°C (78°F) and averaging around 28°C (83°F), peaking at 31°C (87°F). This month sees a considerable increase in rainfall, totaling 90 mm (3.6 in) across 16 days, while humidity drops to 70%. For a deeper look at the conditions, you can visit Marathon weather in July.

When comparing the weather in December and August, December tends to be milder with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 26°C (80°F), while August features warmer temperatures, with a minimum of 25°C (78°F) and a maximum of 31°C (87°F). Precipitation is also markedly different: December receives about 44 mm (1.7 in) of rain over approximately 7 days, whereas August has significantly higher rainfall at 96 mm (3.8 in) spread across 16 days. Humidity levels reflect this difference, with December experiencing higher humidity at 81%, compared to August's 72%. For more information on the unique climate of August, you can check out Marathon weather in August.

In comparing the weather between December and September, it’s clear that each month offers distinct climatic characteristics. December experiences milder temperatures with a minimum of 14°C (58°F) and a maximum of 26°C (80°F), averaging around 23°C (74°F). This month also sees less precipitation, with about 44 mm (1.7 in) spread over 7 days and a higher humidity level of 81%.

In contrast, September is warmer, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 30°C (86°F), and an average of 28°C (83°F). However, it is considerably wetter, receiving approximately 200 mm (7.9 in) of rainfall over 18 days, while humidity hovers around 76%. For those curious about how these conditions may affect activities such as running, you can find more details here: Marathon weather in September.

December weather is generally milder than October, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 26°C (80°F). In contrast, October has warmer temperatures, with lows of 19°C (67°F) and highs reaching up to 29°C (85°F). Additionally, December experiences significantly less rainfall, averaging 44 mm (1.7 in) over about 7 days, compared to October's 131 mm (5.2 in) of precipitation over 18 days. While both months have high humidity, December's humidity sits at 81%, just slightly higher than October's 79%. For more insights on the weather conditions during this time, you can check out Marathon weather in October.

When comparing the weather in December to that of November, December tends to be slightly cooler, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 26°C (80°F). In contrast, November is generally warmer, with temperatures that reach a minimum of 17°C (63°F) and a maximum of 28°C (83°F). Precipitation levels also differ; December experiences about 44 mm (1.7 in) over 7 days, whereas November sees higher rainfall of 69 mm (2.7 in) over 11 days. Humidity levels remain fairly similar, with December at 81% and November at 80%. For more insights, check out Marathon weather in November.

Compare Marathon's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Marathon

In December, Marathon experiences a delightful shift in weather, characterized by milder temperatures and increased humidity compared to other months. With average highs around a comfortable 23°C (74°F) and a more refreshing minimum of 14°C (58°F), this month offers a welcome respite from the sweltering heat of summer. While rainfall can be expected on about seven days, the moderate precipitation of 44 mm (1.7 in) rarely dampens the festive spirit. As the holiday season approaches, December presents a unique blend of warmth and humidity, making it an ideal time for outdoor activities and enjoying the beautiful surroundings. For a more detailed look at how December weather fits into the overall patterns, check out Marathon Climate.