Last updated: February 24, 2025
March in Nantucket brings a chilly atmosphere with temperatures ranging from a maximum of 12°C (53°F) to a minimum of -7°C (19°F), resulting in an average of 4°C (39°F). The month experiences a significant amount of precipitation, totaling 114 mm (4.5 in), spread over approximately 11 days, contributing to a humidity level of 82% that enhances the brisk sea air. As winter gradually yields to spring, Nantucket showcases its unique charm amid the lingering coolness, inviting visitors to experience the island’s evolving landscape.
As March settles in on Nantucket, the temperatures begin to slowly rise, signaling the transition from the chill of winter to the promise of spring. With a minimum temperature of -7°C (19°F) and a maximum reaching 12°C (53°F), the average temperature nudges up to 4°C (39°F), offering a slight reprieve from the harsher cold of the preceding months. While this month still holds onto winter’s grasp, it also hints at warmer days ahead, as March temperatures show a gradual increase compared to February's steady numbers. Each passing day brings longer hours of daylight, encouraging the island's vibrant natural scenery to awaken, making it an intriguing time for visitors and residents alike to embrace the emerging season.
In March, Nantucket experiences a balanced blend of precipitation, with 114 mm (4.5 in) recorded over 11 days. This consistent rainfall is part of a broader trend as the region transitions from winter to spring, following the wetter months of January and February. While March's totals are lower than February's peak of 127 mm (5.0 in), they are comparable to both April and November, which also maintain similar precipitation averages. The gradual increase in rainfall leading into the warmer months hints at the island's shifting climate, supporting budding flora and rejuvenating the landscape ahead of the bustling summer season.
As March unfolds in Nantucket, the air maintains a refreshing humidity level of 82%, slightly lower than the steady 84% recorded in January and February. This gentle decline is a precursor to the milder spring months, where humidity steadily decreases to 79% in April before reaching a comfortable 75% by May. Throughout the year, Nantucket experiences a notable shift from the higher humidity of winter, descending gradually into more moderate levels as summer approaches. This trend not only enhances the coastal charm of the island but also prepares residents and visitors for a delightful transition into the warmer months ahead.
In March, Nantucket experiences a noticeable increase in the UV Index, reaching a value of 6, which indicates a high exposure category and a corresponding burn time of only 25 minutes. This marks an upward trend from the previous months: January and February had moderate levels of 3 and 5, respectively. As spring approaches, residents and visitors alike should be more vigilant about sun protection, as the UV radiation becomes significantly stronger. Looking ahead, the UV Index will continue to rise sharply in April and May, reaching very high levels, highlighting the importance of staying sun-safe during this transitional period. To learn more about how to protect yourself under the sun, visit Nantucket UV Index.
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March in Nantucket welcomes a brilliant transformation, as the days stretch longer and brighter with 256 hours of sunshine. This surge in sunlight marks a delightful shift from the dreary winter months, where January and February only offered 134 and 174 hours of sun, respectively. The arrival of spring heralds a noticeable embrace of warmth and light, propelling Nantucket into a vibrant season that continues to flourish into May and June, where sunny hours peak at 299 and 319. As we transition through April's 244 hours, it becomes clear that March not only sets the stage for the sunshine-filled months ahead but also serves as a reflective pivot from the quieter, grayer winter landscape.
In Nantucket, March marks a notable shift in the weather, with the likelihood of sunny days rising to 56%, making it one of the sunniest months of the year. This increase stands in contrast to the preceding winter months, where January and February experience much lower chances of sunshine at 36% and 27%, respectively. Following March, the sunny probabilities dip again in April before slowly rising through the spring and into the summer. As winter yields to spring, Nantucket begins to bask in noticeably brighter and warmer conditions, inviting residents and visitors alike to enjoy the rejuvenating charm of the island in full bloom.
As March unfolds in Nantucket, the days noticeably lengthen, bringing an invigorating increase in daylight that reaches 11 hours. This transition marks a significant shift from the shorter winter months of January and February, which offer just 9 and 10 hours of light, respectively. The steady climb in daylight continues into April, where the number soars to 13 hours, paving the way for the vibrant blooms of spring. This progression not only enhances outdoor activities but also reinforces the gradual return of warmth and sunshine, reminding residents that longer days are just around the corner as summer approaches.
March in Nantucket ushers in a gentle breeze with an average wind speed of 7.9 m/s (18 mph), marking a slight decline from the stronger winds of January and February. As winter winds begin to wane, the transition into spring is palpable, heralding the approach of milder weather. April continues this trend with a further reduction to 7.5 m/s (17 mph), while subsequent months show a gradual decline leading into summer. The warmest months, July and August, experience the calmest winds, averaging just 5.4 m/s (12 mph) and 5.2 m/s (12 mph), respectively. As temperatures cool again in September and October, wind speeds pick up slightly, suggesting a dynamic ebb and flow of Nantucket’s coastal winds throughout the year.
The weather in Nantucket 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 Nantucket and find detailed weather information for every month.
In comparing the weather of March and January, it's clear that March experiences a slight warming trend, with average temperatures reaching 4°C (39°F) compared to January's average of 3°C (38°F). March also has higher maximum temperatures, peaking at 12°C (53°F), while January's highs reach 13°C (55°F). Precipitation is more prominent in March, totaling 114 mm (4.5 in) over 11 days, while January sees slightly less at 96 mm (3.8 in) over 10 days. Humidity levels remain relatively high in both months, with March at 82% and January at 84%. For a closer look at January's conditions, check out Nantucket weather in January.
March weather in Nantucket shows a slight improvement in overall temperatures compared to February. While February experienced minimum temperatures dropping to -10°C (15°F), March's lows are slightly milder at -7°C (19°F). The average temperature in March is a bit warmer at 4°C (39°F), compared to February's 3°C (38°F). However, despite the warmer temperatures in March, it sees a decrease in total precipitation, with 114 mm (4.5 in) over 11 days compared to February's 127 mm (5.0 in) over 13 days. Humidity remains consistent, with March at 82% and February slightly higher at 84%. For more detailed information, take a look at Nantucket weather in February.
March weather is characterized by colder temperatures, with lows reaching down to -7°C (19°F) and an average around 4°C (39°F). The month experiences considerable precipitation, totaling 114 mm (4.5 in) over 11 days and higher humidity at 82%. In contrast, April brings a slight warming trend, with minimum temperatures of 1°C (34°F) and an average of 7°C (45°F). While April records a bit more precipitation at 127 mm (5.0 in) spread across 12 days, humidity decreases slightly to 79%. For more specific details about April, you can check Nantucket weather in April.
In March, temperatures range from a chilly minimum of -7°C (19°F) to a mild maximum of 12°C (53°F), with an average of 4°C (39°F). The month experiences significant precipitation of 114 mm (4.5 in) over 11 days and maintains a high humidity level of 82%. In contrast, May brings much warmer temperatures, with a minimum of 5°C (41°F) and a maximum of 16°C (62°F), averaging around 11°C (51°F). While May sees slightly higher precipitation at 130 mm (5.1 in) over 12 days, humidity drops to a more comfortable 75%. For more details on May's weather, you can explore Nantucket weather in May.
The weather in March and June showcases a distinct shift from winter's chill to a more temperate climate. In March, temperatures can dip as low as -7°C (19°F) with an average of 4°C (39°F), making it feel quite brisk. Precipitation is relatively high at 114 mm (4.5 in) over 11 days, coupled with a humidity level of 82%, contributing to a damp and cool atmosphere. In contrast, June brings a notable warmth, with temperatures ranging from a minimum of 10°C (50°F) to a comfortable average of 15°C (60°F) and reaching a maximum of 21°C (70°F). Although precipitation is somewhat lower at 83 mm (3.2 in) over 10 days and humidity is slightly less at 78%, the overall feel of June is significantly more inviting. For more detailed insights, you can explore the Nantucket weather in June.
March and July present stark contrasts in weather conditions. In March, temperatures can dip as low as -7°C (19°F), with an average of 4°C (39°F) and highs reaching up to 12°C (53°F). This month also sees significant precipitation, totaling 114 mm (4.5 in) over approximately 11 days, and an average humidity of 82%, making it feel quite chilly and damp. In comparison, July offers a much warmer climate, with temperatures ranging from a minimum of 15°C (59°F) to an average of 20°C (67°F) and a maximum of 24°C (76°F). Additionally, July experiences less precipitation at 64 mm (2.5 in) over 8 days, accompanied by lower humidity at 76%, creating a more comfortable and pleasant atmosphere. For more details on July's weather, you can check Nantucket weather in July.
March and August exhibit stark contrasts in weather patterns. In March, temperatures range from a chilly min of -7°C (19°F) to a mild max of 12°C (53°F), with an average temperature of 4°C (39°F). This month sees significant precipitation, measuring 114 mm (4.5 in) over approximately 11 days, and a high humidity level of 82%. In contrast, August boasts much warmer temperatures, with a minimum of 16°C (62°F) and a maximum of 24°C (76°F), resulting in an average of 21°C (70°F). While precipitation remains relatively low at 98 mm (3.9 in) and occurs over just 8 days, humidity drops to 76%, contributing to a more comfortable summer climate. For more details on the specific weather conditions, you can view Nantucket weather in August.
When comparing the weather in March and September, notable differences emerge in both temperature and precipitation patterns. March tends to be much colder, with temperatures ranging from a minimum of -7°C (19°F) to a maximum of 12°C (53°F) and an average of around 4°C (39°F). In contrast, September offers a milder climate, with minimum temperatures of 13°C (56°F), an average of 19°C (66°F), and maximums reaching 23°C (73°F). While March experiences significant precipitation with 114 mm (4.5 in) over 11 days, September is slightly wetter at 122 mm (4.8 in) but with one less rainy day. Additionally, humidity levels are higher in March at 82%, compared to September's 75%. For a more detailed insight into September's weather, you can check out Nantucket weather in September.
March and October present contrasting weather conditions. In March, temperatures start off chilly, with a minimum of -7°C (19°F) and an average of just 4°C (39°F), while October enjoys milder temperatures, ranging from a minimum of 5°C (41°F) to an average of 15°C (60°F). Precipitation in March is significant, totaling 114 mm (4.5 in) over 11 days, compared to October's higher precipitation of 162 mm (6.4 in) spread over 12 days. Additionally, March has a higher humidity level at 82%, while October's humidity is slightly lower at 75%. For a detailed look at the weather trends in October, you can check out Nantucket weather in October.
In March, temperatures typically range from a chilly minimum of -7°C (19°F) to a mild maximum of 12°C (53°F), with an average temperature of 4°C (39°F). The month experiences significant precipitation, averaging 114 mm (4.5 in) over approximately 11 days and maintaining a high humidity level of 82%. In contrast, November sees slightly warmer temperatures, with a minimum of -5°C (24°F) and a maximum of 19°C (66°F), reflecting an average of 10°C (50°F). Precipitation in November is comparable, at 115 mm (4.5 in) over 10 days, but humidity is slightly lower at 80%. For more detailed information on November weather, you can visit Nantucket weather in November.
March and December each present their own unique weather characteristics. In March, temperatures range from a minimum of -7°C (19°F) to a maximum of 12°C (53°F), with an average of 4°C (39°F). This month experiences about 114 mm (4.5 in) of precipitation over approximately 11 days, coupled with a humidity level of 82%. In contrast, December sees a slightly wider temperature range, with a minimum of -9°C (16°F) and a maximum of 16°C (61°F), averaging around 5°C (42°F). Precipitation is a bit higher in December, at 132 mm (5.2 in) over 12 days, while humidity remains relatively close at 80%. For a closer look at what to expect, check out the Nantucket weather in December.
As March arrives in Nantucket, the weather begins to transition from the chill of winter to the promise of spring. Temperatures start to rise, bringing a noticeable change from the frosty days of January and February, yet the lingering coolness can still surprise with occasional surprising dips. Precipitation, while frequent, is characteristic of this transitional month, adding a soft touch to the awakening landscape. With average humidity levels at a notable 82%, you’ll often find the air feeling crisp yet damp—a reminder of the lingering winter moisture. March's climate lays the foundation for the emerging beauty of the island, making it an intriguing time to explore before the summer crowds arrive. For a deeper understanding of Nantucket's seasonal patterns, visit the detailed insights at Nantucket Climate.