Last updated: February 24, 2025
In March, Sullivans Island experiences a pleasant climate characterized by an average temperature of 15°C (60°F), with daily highs reaching up to 23°C (74°F) and chilly nights dropping to a cool 2°C (36°F). This month sees 62 mm (2.4 in) of rain spread across approximately 7 days, contributing to a relatively high humidity level of 79%. As spring begins to unfold, the island offers a delightful mix of mild temperatures and refreshing coastal breezes, making it an ideal time to explore the natural beauty and charm of this picturesque destination.
As March arrives on Sullivans Island, temperatures begin their gentle ascent, marking a transition from the cooler winter months to the warmer spring season. With minimums around 2°C (36°F) and average highs reaching 23°C (74°F), March offers a pleasant balance of crisp mornings and mild afternoons. The average temperature climbs to 15°C (60°F), hinting at the inviting warmth that April will bring. As the days lengthen and the sun shines brighter, locals and visitors alike can enjoy the outdoor charms of the island, with temperatures steadily trending upward, setting the stage for the delightful warmth that characterizes the coming months.
March in Sullivans Island sees a moderate precipitation level, with 62 mm (2.4 in) of rain spread over just 7 days, making it one of the drier months in the first quarter of the year. This reflects a slight decrease from February's 91 mm (3.6 in), which was marked by 11 rainy days. As winter transitions into spring, the weather begins to balance itself with more intermittent showers, paving the way for the increased rainfall ahead in April and the peak wet months that follow. The gradual dip in precipitation showcases the shift towards more stable weather patterns, while still allowing for ample outdoor enjoyment as the days grow warmer.
In March, Sullivans Island enjoys a comfortable humidity level of 79%, maintaining the same figure as February. This stability in humidity marks a transition phase as the island prepares for the warmer months ahead. Interestingly, the humidity levels this month align closely with those of April and May, suggesting a consistent, pleasant coastal climate as spring unfolds. While the humidity dips slightly in April and May to 78%, it generally remains within a similar range, ensuring a refreshing atmosphere before the summer heat set in. Overall, March serves as a nice prelude to the humid summer months, striking a balance that makes it a perfect time to explore the scenic beauty of the island.
As spring arrives in Sullivans Island, the UV Index experiences a significant uptick, jumping to 9 in March, indicating a very high exposure risk. This marks a substantial increase from the moderate conditions of January and the high levels in February. With a burn time of just 15 minutes, it’s essential to stay vigilant and protect your skin from the intensified sun. This trend continues into April, where the UV Index peaks at 10, reminding beachgoers that as temperatures rise, so too does the potential for sun-related harm. For more information on protecting yourself, visit Sullivans Island UV Index.
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March brings a delightful surge of sunshine to Sullivans Island, with an impressive 282 hours of sun casting a warm glow over the community. This heralds the shift into spring, following February's 218 hours, and showcases a notable trend of increasing daylight as the year progresses. As the seasons transition, the island witnesses a steady rise in sunlight; from the 190 hours in January, each month builds on the last, culminating in April's abundant 313 hours. This pattern not only enhances the natural beauty of the island but also sets the stage for outdoor activities that flourish as warmer days approach. The vibrant sunshine in March signals the promise of an exciting spring ahead!
As March unfolds in Sullivans Island, the likelihood of sunny days dips slightly to 38%, a trend reflecting the transitional nature of early spring. This percentage comes on the heels of the winter months, where January and February show 45% and 39% chances of sunshine, respectively. Interestingly, the sun's presence begins to make a stronger appearance in April, jumping to 57%, hinting at the impending warmth of spring. While March might not promise an abundance of sunny days, it paves the way for brighter skies and milder weather as the season progresses, encouraging residents and visitors alike to savor the crisp days before the sun becomes a more frequent companion.
As March unfolds in Sullivans Island, the days lengthen, offering a delightful 12 hours of daylight—a noticeable increase from the 11 hours experienced in February. This trend of gradual light expansion continues as spring approaches, hinting at longer, warmer days ahead. With each passing month, daylight steadily rises, peaking at 14 hours in June and July before transitioning back to shorter days as autumn sets in. March not only marks a vital turning point in daylight hours but also signals a vibrant shift in the island's seasonal rhythm, encouraging outdoor activities and the revival of nature's beauty.
As March unfurls its breezy charm on Sullivan's Island, the average wind speed holds steady at 5.2 m/s (12 mph), mirroring January's inviting gusts. This consistency heralds the arrival of spring, as the winds shift just slightly from the earlier months, maintaining an invigorating yet harmonious atmosphere. The balmy breezes of March are a prelude to the warming months of April and May, which see similar wind patterns, but gradually begin to mellow. With the wind's gentle embrace, March stands as a reminder of nature's rhythmic cycles, embodying the transition from winter's chill to the vibrant energy of spring. As the season unfolds, the whispers of the wind inspire joy and a sense of adventure among those who experience the stunning beauty of this coastal haven.
The weather in Sullivans Island changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of March's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Sullivans Island and find detailed weather information for every month.
In comparing the weather of March and January, we see a noticeable shift in temperatures. March offers a milder climate with an average temperature of 15°C (60°F), whereas January has a chillier average of 12°C (53°F). The minimum temperature in January dips to -5°C (24°F), while March starts at a more comfortable 2°C (36°F). Precipitation levels are relatively similar, with March receiving 62 mm (2.4 in) over 7 days compared to January's 66 mm (2.6 in) over 8 days. Additionally, humidity remains quite high in both months, slightly lower in March at 79% compared to January's 83%. For more detailed insights, check out Sullivans Island weather in January.
Comparing the weather between February and March reveals some notable differences. March tends to be slightly warmer, with average temperatures rising from 14°C (57°F) in February to 15°C (60°F). The maximum temperature also increases, reaching 23°C (74°F) in March compared to 21°C (70°F) in February. However, March experiences less precipitation, with 62 mm (2.4 in) of rain over 7 days, compared to February's 91 mm (3.6 in) over 11 days. Both months maintain a consistent humidity level of 79%. For more detailed weather insights, check Sullivans Island weather in February.
March and April showcase a noticeable shift in weather patterns. In March, temperatures range from a minimum of 2°C (36°F) to a maximum of 23°C (74°F), with an average of 15°C (60°F). The month experiences around 62 mm (2.4 in) of precipitation over 7 days, accompanied by a relatively high humidity of 79%. In contrast, April brings warmer temperatures, with a minimum of 6°C (42°F), an average of 19°C (66°F), and a maximum of 27°C (81°F). However, it sees an increase in precipitation to 105 mm (4.1 in) across 8 days, while humidity remains slightly lower at 78%. For more specific insights on temperatures and conditions, you can visit Sullivans Island weather in April.
March typically presents cooler temperatures, with a minimum of 2°C (36°F) and an average of 15°C (60°F), while May enjoys warmer conditions, featuring a minimum of 12°C (55°F) and an average of 23°C (74°F). Precipitation levels are slightly higher in May, totaling 82 mm (3.2 in) over 8 days, compared to March's 62 mm (2.4 in) over 7 days. Humidity remains fairly consistent, with March at 79% and May at 78%. For more detailed information, you can check Sullivans Island weather in May.
March and June present a significant contrast in weather conditions. March typically features cooler temperatures, with a minimum of 2°C (36°F) and an average of 15°C (60°F), peaking at a maximum of 23°C (74°F). In this month, precipitation is relatively moderate at 62 mm (2.4 in) occurring over 7 days, along with high humidity levels of 79%.
In contrast, June offers much warmer weather, with temperatures starting at a minimum of 18°C (64°F), averaging 26°C (79°F), and reaching highs of 32°C (90°F). However, June experiences heavier rainfall, totaling 144 mm (5.7 in) spread over 17 days, while humidity remains slightly lower at 78%. For more details on June weather, visit Sullivans Island weather in June.
March and July present striking contrasts in weather. In March, temperatures range from a cool 2°C (36°F) to a mild 23°C (74°F), with an average of 15°C (60°F) and relatively low precipitation of 62 mm (2.4 in) over about 7 days. Humidity is quite high at 79%, but the overall feel remains fresh. In comparison, July brings much warmer conditions, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 32°C (89°F) and an average of 27°C (81°F). Rainfall significantly increases to 171 mm (6.7 in) spread over 16 days, and the humidity slightly rises to 82%, contributing to a more tropical feel. For a closer look at July's weather specifics, you can check out Sullivans Island weather in July.
March and August exhibit stark contrasts in weather patterns. March has a mild temperature range with a minimum of 2°C (36°F) and a maximum of 23°C (74°F), while August boasts significantly warmer temperatures, with a minimum of 23°C (73°F) and a maximum reaching 31°C (89°F). Precipitation also varies greatly, with March experiencing 62 mm (2.4 in) over 7 days, compared to August's substantial 197 mm (7.8 in) across 21 days. Humidity levels remain relatively consistent, hovering around 79% in March and slightly increasing to 81% in August. For more detailed weather insights, check out Sullivans Island weather in August.
March and September exhibit distinct differences in weather patterns. In March, temperatures range from a chilly minimum of 2°C (36°F) to a comfortable average of 15°C (60°F), peaking at a pleasant 23°C (74°F). The month sees moderate precipitation of 62 mm (2.4 in) over about 7 days, with humidity levels at 79%. In contrast, September is much warmer, with minimum temperatures starting at 16°C (61°F) and averages reaching 26°C (79°F), culminating in maximums of 32°C (90°F). However, September also experiences higher rainfall, totaling 188 mm (7.4 in) over 14 days, while humidity slightly increases to 81%. For a closer look at September's climate, check out Sullivans Island weather in September.
In comparing the weather of March and October, we see notable differences in temperature and precipitation patterns. March typically experiences cooler conditions, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 23°C (74°F), while October boasts warmer averages, with minimums around 7°C (46°F) and highs reaching 29°C (85°F). Precipitation is slightly higher in October, totaling 85 mm (3.4 in) over approximately 10 days, compared to March's 62 mm (2.4 in) over 7 days. Despite the increased rainfall in October, humidity levels remain similar between the two months, hovering around 79% in March and 78% in October. For more detailed information, you can check Sullivans Island weather in October.
March and November both offer mild temperatures, with March averaging around 15°C (60°F) and November slightly warmer at 16°C (62°F). However, November typically experiences higher maximum temperatures, reaching up to 26°C (79°F) compared to March’s 23°C (74°F). Precipitation levels are also notable; March receives about 62 mm (2.4 in) over 7 days, while November sees an increase to 103 mm (4.1 in) across 8 days, contributing to a slightly higher humidity of 82% in November compared to 79% in March. For more details, you can check Sullivans Island weather in November.
In comparing the weather between March and December, March generally offers milder temperatures with a minimum of 2°C (36°F) and an average of 15°C (60°F), peaking at a maximum of 23°C (74°F). This month sees around 62 mm (2.4 in) of precipitation over approximately 7 days, with humidity levels resting at 79%. In contrast, December experiences slightly cooler temperatures, with a minimum of 0°C (33°F) and an average of 13°C (56°F), while the maximum is about 22°C (72°F). However, it is notably wetter, receiving 141 mm (5.6 in) of precipitation across 10 days, with humidity climbing to 84%. For more details on December weather, you can visit Sullivans Island weather in December.
March on Sullivans Island brings a refreshing transition from the chill of winter to the budding warmth of spring. With a pleasant average temperature around 15°C, this month is notably milder compared to the cooler winter months, while still offering occasional brisk days that remind us winter isn’t quite finished. The humidity peaks at a comfortable 79%, lending a soft, inviting feel to the air, though occasional rainfall—about 62 mm over seven days—adds to the atmosphere of renewal. As you explore the island, you’ll notice how March's moderate temperatures and emerging greenery set the stage for the vibrant months ahead. For more insights into the typical weather patterns, check out Sullivans Island Climate.