January Weather in Hilton Head Island, United States

Last updated: February 24, 2025

In January, Hilton Head Island offers a mild winter escape, with temperatures reaching a maximum of 24°C (75°F) and averaging around 11°C (53°F). Visitors can expect crisp mornings with minimum temperatures dipping to -5°C (23°F). Although January is one of the wetter months with 61 mm (2.4 in) of precipitation spread across seven days, the island's 86% humidity creates a unique, refreshing atmosphere. Whether enjoying the tranquil beaches or exploring the rich nature, Hilton Head Island in January presents an inviting blend of warmth and adventure amidst the cool winter backdrop.

January Temperature in Hilton Head Island

In January, Hilton Head Island offers a refreshing escape with temperatures ranging from a chilly -5°C (23°F) at night to a pleasant 24°C (75°F) during the day, averaging around 11°C (53°F). This transitional month marks the beginning of a gradual warm-up as winter gives way to spring. February sees a slight increase, with lows around 1°C (33°F) and highs peaking at 25°C (77°F), bringing average temperatures to 14°C (57°F). By March, the warmth continues to build, setting the stage for spring as temperatures hover between 1°C (34°F) and 27°C (81°F). As the months progress, the island enjoys a steady rise in temperatures, culminating in the sultry summer months, where highs can reach 35°C (95°F) in July and August. This dynamic shift from winter's chill to summer's warmth beckons visitors to enjoy the island’s beauty at every turn.

January Weather in Hilton Head Island: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Hilton Head Island, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec535761677479828179736055
Data source: Temperature data for Hilton Head Island 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.

January Precipitation in Hilton Head Island

January in Hilton Head Island ushers in a modest 61 mm (2.4 in) of precipitation over 7 days, marking the month as a relatively dry start to the year. As winter yields to spring, February sees a slight uptick with 80 mm (3.1 in) of rain spread over 11 days, hinting at a gradual increase in wet weather. The trend continues into the spring months, where April and May witness more substantial rainfall, reaching 85 mm (3.4 in) and 89 mm (3.5 in) respectively. Notably, the summer months bring a significant surge in precipitation, with July peaking at 156 mm (6.1 in) and 19 rainy days, illustrating the region's shift to a much wetter climate. This escalating pattern continues into August before tapering off in the fall, emphasizing Hilton Head Island’s seasonal variability in precipitation, where the dry chill of January contrasts sharply with the humid summer drench.

January Precipitation Trends in Hilton Head Island

The chart displays monthly precipitation patterns in Hilton Head Island, with values for each month alongside January's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec62806885891221561801278890125
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Hilton Head Island

In January, Hilton Head Island experiences a notably high humidity level of 86%, setting the tone for a month that feels both mild and slightly sticky. This peak in humidity gradually declines over the following months, with February and March maintaining a more manageable 81%, before dipping to 79% in April. As spring transitions into summer, humidity remains relatively stable at 75% in May and June, before creeping back up to 80% in July and 81% in August. The trend then oscillates through late summer and into autumn, peaking again at 83% in September, before settling down to 78% in October. As the year concludes, humidity makes a comeback, rising to 87% in December, highlighting Hilton Head's characteristic coastal climate. Overall, the island's humidity exhibits a clear seasonal rhythm, balancing warmth and moisture throughout the year.

January Average Humidity in Hilton Head Island

This chart illustrates the average monthly humidity levels in Hilton Head Island, with January's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how January's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec86%81%81%79%75%75%80%81%83%78%85%87%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Hilton Head Island

In January, Hilton Head Island experiences a moderate UV Index of 4, allowing for about 30 minutes of sun exposure before risk of burn increases. This relatively mild UV radiation sets the stage for a shift as winter gives way to spring. By February, the UV Index climbs to 7, indicating a high exposure level, and the burn time decreases to 25 minutes. March and April see a significant jump, with values reaching 9 and 10 respectively, signaling a transition to very high exposure that requires caution, especially as burn time plummets to just 15 minutes. As summer approaches in May, the UV Index peaks at an extreme 11, where the safe exposure time narrows to just 10 minutes. This intensity lasts through the summer months, with August maintaining the same level. The trend gradually shifts downwards in the fall, with a slight easing to 10 in September and 8 in October, while November and December return to milder levels at 6 and 4, respectively. Understanding these trends is crucial for sun safety planning. For detailed insights on UV exposure throughout the year, visit Hilton Head Island UV Index.

Maximum UV Index Levels in Hilton Head Island for January

The chart shows the monthly maximum UV Index (UVI) for Hilton Head Island in January, 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.
JanFebMarAprMayJunJulAugSepOctNovDec479101111111110864
Data source: Hilton Head Island January 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.

January Sunshine in Hilton Head Island

January on Hilton Head Island offers 192 hours of sunshine, a delightful start to the year that sets the stage for a gradual increase in daylight. As February arrives, the sun shines a bit brighter with 214 hours, hinting at the impending warmth of spring. By March, the island basks in 282 hours of sunlight, an inviting atmosphere that beckons for outdoor adventures. The trend continues as April and May boast 309 and 338 hours respectively, making this a perfect time for beachgoers and nature enthusiasts. Although June sees a slight dip to 321 hours, July shines the brightest with 347 hours, offering long, sun-filled days ideal for soaking up the coastal beauty. The sun begins to wane slightly in August and September, with 318 and 304 hours, yet the mild temperatures keep visitors enchanted. As autumn approaches, October and November bring 294 and 253 hours, leading towards a cooler winter, while December closes the year with 218 hours that still invites holiday cheer. Overall, Hilton Head Island in January marks the beginning of a captivating journey through the year, with each month unfolding more sunshine and opportunities for enjoyment.

Monthly Sunshine Duration in Hilton Head Island: January Highlighted

The January sunshine duration represents the total number of hours Hilton Head Island experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec192h214h282h309h338h321h347h318h304h294h253h218h
Data source: Hilton Head Island January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hilton Head Island During January

In January, Hilton Head Island experiences a moderate likelihood of sunny weather, with a 45% chance of sunshine illuminating the coastal landscape. This probability signifies a promising start to the year, especially when compared to the cooler months that precede it. However, as temperatures rise in the spring, the chances of sunny days see a noticeable uptick, peaking in April at 55%. While summer months like June and July bring a dip to 27%, likely due to increased cloud cover and precipitation, the sun steadily returns in the fall, reaching 51% in September. Consequently, January serves as a transitional month, balancing a decent chance of sunshine with the promise of brighter days ahead as the year unfolds.

Percentage of Sunny Days in January in Hilton Head Island

The chart illustrates the percentage of sunny days in Hilton Head Island throughout the year, with January 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 Hilton Head Island experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%38%39%55%53%27%31%27%51%52%61%43%
Data source: Hilton Head Island January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hilton Head Island in January

In January, Hilton Head Island enjoys about 10 hours of daylight, marking the start of a gradual increase that continues into February with 11 hours. As spring approaches in March and April, daylight peaks at 12 hours, welcoming warmer days and vibrant scenery. May ushers in longer days with 13 hours of sunlight, setting the stage for summer. June reaches its zenith with an impressive 14 hours of daylight, perfect for outdoor activities. This abundance diminishes slightly in July and August, tapering back to 13 hours, before a slow descent in daylight occurs through September and October, wrapping up the year with 10 hours in November and December. This cyclical pattern not only highlights the seasonal transitions but also enhances the island's charm throughout the year, inviting visitors to experience its beauty in varying daylight.

Average Daylight Hours in Hilton Head Island for January

The chart illustrates the variation in daylight duration in Hilton Head Island throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 17m11h 2m12h12h 59m13h 48m14h 12m13h 59m13h 15m12h 19m11h 20m10h 29m10h 3m
Data source: Hilton Head Island daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Hilton Head Island

January on Hilton Head Island brings a refreshing average wind speed of 4.3 m/s (10 mph), setting the tone for an inviting winter climate. As the cold months roll in, the wind remains relatively steady, with February following closely at 4.2 m/s (9 mph). The transition into spring sees a slight uptick in wind speed, particularly in March and May, where both months return to 4.4 m/s (10 mph), creating a delightful breeze that enhances the island's charm. Interestingly, summer months experience the gentlest winds, with July peaking at only 3.6 m/s (8 mph), perfect for those lazy beach days. As autumn descends, the winds slightly increase again, culminating in November's 4.0 m/s (9 mph) before closing out the year. Overall, the wind patterns in Hilton Head reveal a rhythm that beautifully complements the island's seasonal transitions, making it an appealing destination year-round.

Average January Wind Speed in Hilton Head Island

The chart displays monthly wind speed patterns in Hilton Head Island, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.3 m/s4.24.44.34.44.13.63.43.23.54.03.8
Data source: Hilton Head Island January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Hilton Head Island Compares to Other Months

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

January and February present a noticeable shift in weather patterns. January typically sees colder temperatures, with minimums reaching as low as -5°C (23°F) and an average temperature of 11°C (53°F). In contrast, February offers a milder climate, with minimum temperatures rising to 1°C (33°F) and an average of 14°C (57°F). Both months experience notable precipitation, but February has slightly more at 80 mm (3.1 in) over 11 days compared to January’s 61 mm (2.4 in) over 7 days. Additionally, humidity remains relatively high, although it decreases slightly from 86% in January to 81% in February. For a closer look at the specifics of February weather, visit Hilton Head Island weather in February.

In January, the weather typically features a broad temperature range with minimums dipping to -5°C (23°F) and maximums reaching up to 24°C (75°F), resulting in an average of 11°C (53°F). The month sees around 61 mm (2.4 in) of precipitation over about 7 days and maintains high humidity at 86%. In contrast, March presents a milder climate, with minimum temperatures around 1°C (34°F) and maximums hitting 27°C (81°F), averaging 16°C (61°F). Though slightly wetter with 68 mm (2.7 in) of precipitation over 6 days, the humidity decreases to 81%. For more detailed information about the weather during this month, check out Hilton Head Island weather in March.

January and April present notably different weather patterns. In January, temperatures range from a chilly minimum of -5°C (23°F) to a pleasant maximum of 24°C (75°F), with an average of 11°C (53°F). The month experiences around 61 mm (2.4 in) of precipitation over 7 days, accompanied by high humidity at 86%. In contrast, April brings a more temperate climate, with temperatures starting at a minimum of 6°C (43°F) and peaking at 30°C (87°F), averaging 19°C (67°F). While rainfall increases slightly to 85 mm (3.4 in) over 8 days, humidity decreases to 79%. For more detailed information, you can check out Hilton Head Island weather in April.

In January, the weather in Hilton Head Island features a wide range of temperatures, with a minimum of -5°C (23°F) and a maximum reaching 24°C (75°F), resulting in an average of 11°C (53°F). The month experiences relatively high humidity at 86% and receives about 61 mm (2.4 in) of precipitation over 7 days. In contrast, May brings much warmer conditions, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 34°C (94°F) and an average of 23°C (74°F). The humidity levels decrease to 75%, and rainfall increases slightly to 89 mm (3.5 in) across 10 days. For a closer look at the weather specifics, you can explore Hilton Head Island weather in May.

In January, temperatures range from a chilly -5°C (23°F) to a warm 24°C (75°F), with an average temperature of 11°C (53°F). The month experiences around 61 mm (2.4 in) of precipitation over approximately 7 days, combined with high humidity at 86%. In stark contrast, June boasts significantly warmer temperatures, with a minimum of 18°C (64°F), an average of 26°C (79°F), and a maximum of 34°C (93°F). Preciptation increases to 122 mm (4.8 in) spread over 18 days, but humidity drops to a more comfortable 75%. For more insights into the June weather patterns, check out Hilton Head Island weather in June.

January and July present two starkly contrasting weather profiles. In January, temperatures range from a chilly minimum of -5°C (23°F) to a pleasant maximum of 24°C (75°F), with an average temperature of 11°C (53°F). The month sees about 61 mm (2.4 in) of precipitation over 7 days, accompanied by high humidity at 86%. In contrast, July boasts much warmer conditions, with minimum temperatures starting at 23°C (73°F) and soaring to a maximum of 35°C (95°F), averaging 28°C (82°F). This peak summer month experiences significantly higher precipitation at 156 mm (6.1 in) over 19 days, while humidity remains comparatively lower at 80%. For an in-depth look at the July weather, you can visit Hilton Head Island weather in July.

January and August contrast sharply in terms of weather conditions. January experiences cooler temperatures, with a minimum of -5°C (23°F) and an average of 11°C (53°F), while August boasts much warmer averages, ranging from a minimum of 22°C (73°F) to a maximum of 34°C (94°F). Precipitation levels also differ significantly; January sees 61 mm (2.4 in) over about 7 days, whereas August has a much higher total of 180 mm (7.1 in) across 22 days, though humidity remains relatively similar at 86% in January and 81% in August. For more detailed information, you can check Hilton Head Island weather in August.

January and September present strikingly different weather conditions. In January, temperatures range from a chilly minimum of -5°C (23°F) to a milder maximum of 24°C (75°F), with an average of 11°C (53°F). The month sees about 61 mm (2.4 in) of precipitation over 7 days, accompanied by high humidity levels at 86%. In contrast, September boasts much warmer temperatures, with a minimum of 16°C (61°F) and an average high of 34°C (93°F), averaging 26°C (79°F). This month experiences significantly more rainfall, recording 127 mm (5.0 in) over 15 days, while the humidity remains slightly lower at 83%. For more details on what to expect, check out Hilton Head Island weather in September.

In January, temperatures range from a chilly -5°C (23°F) to a pleasant 24°C (75°F), with an average of 11°C (53°F). The month sees a moderate level of precipitation at 61 mm (2.4 in) over about 7 days, and humidity remains high at 86%. In contrast, October experiences milder temperatures, with a minimum of 6°C (42°F) and a maximum of 31°C (89°F), averaging around 23°C (73°F). This month also brings increased precipitation, totaling 88 mm (3.5 in) over approximately 11 days, but with slightly lower humidity at 78%. For more detailed insights on what the climate is like during October, you can check Hilton Head Island weather in October.

When comparing the weather in January and November, notable differences emerge. January typically has a colder range, with minimum temperatures dropping to -5°C (23°F) and average highs around 11°C (53°F), whereas November sees relatively milder temperatures, with a minimum of 1°C (35°F) and an average high of 16°C (61°F). Precipitation is slightly higher in November, totaling 90 mm (3.5 in) over eight days compared to January’s 61 mm (2.4 in) over seven days. Humidity levels remain quite similar, with January averaging 86% and November close behind at 85%. For more detailed information about the climatic conditions, check out Hilton Head Island weather in November.

In January, the weather features a notable range in temperatures, with a minimum of -5°C (23°F) and a maximum of 24°C (75°F), resulting in an average of 11°C (53°F). The month experiences moderately lower precipitation than December, totaling 61 mm (2.4 in) over 7 days, while humidity remains relatively high at 86%.

Conversely, December showcases slightly warmer conditions, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 23°C (73°F) and an average of 13°C (55°F). However, it sees significantly greater rainfall, amounting to 125 mm (4.9 in) over 10 days, alongside a similar humidity level of 87%. For an in-depth look at December weather specifics, you can visit Hilton Head Island weather in December.

Overall, while both months are relatively mild, January tends to be colder and drier compared to the wetter and warmer conditions of December.

Compare Hilton Head Island's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Hilton Head Island

January on Hilton Head Island presents a unique contrast to the region's typically warm and balmy climate. With cooler temperatures and increased humidity, this month invites visitors to experience the island in a new light, making it a perfect time for serene beach walks and exploration without the summer crowds. Rainfall is relatively modest, occurring on just a few days, which means you can still enjoy outdoor activities amidst the mild temperatures. For those planning a visit, understanding how January's weather differs from other months can enhance the experience. Discover more about what makes this island's climate special by visiting Hilton Head Island Climate.