March Weather in Saint Croix, Virgin Islands (U.S.)

Last updated: August 28, 2025

March in Saint Croix, Virgin Islands offers a delightful tropical climate, with average temperatures hovering around 25°C (77°F). Visitors can expect pleasant highs reaching up to 26°C (80°F) and minimal drops to 23°C (73°F) at night. While the month sees approximately 34 mm (1.3 in) of rainfall over 11 days, the humidity level remains consistently high at 77%, creating a lush and vibrant atmosphere. This combination of warmth and occasional showers makes March an ideal time for enjoying the natural beauty and outdoor activities on this stunning Caribbean island.

March Temperature in Saint Croix

In March, the temperatures in Saint Croix, Virgin Islands present a delightful prelude to the warmer months ahead. With a minimum of 23°C (73°F) and an average that holds steady at 25°C (77°F), visitors can revel in balmy days and comfortable evenings. The maximum temperature reaches 26°C (80°F), making it an ideal time for beachgoers and outdoor enthusiasts to enjoy the sun without the intense heat of the summer months. This consistency in warmth, as seen from January to March with only a slight fluctuation, signals that spring is in the air, inviting both relaxation and adventure in this tropical paradise. As the month transitions into April, temperatures will slightly rise, continuing the trend of inviting Caribbean warmth.

March Weather in Saint Croix: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Saint Croix, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Croix, March typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec787777787981818282818079
Data source: Temperature data for Saint Croix 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.

March Precipitation in Saint Croix

In March, Saint Croix experiences a consistent pattern of precipitation, mirroring the 34 mm (1.3 in) recorded in January. With rain gracing the island on 11 days, March remains relatively dry compared to the summer months ahead, which see a notable increase in rainfall. As spring unfolds, the transition to wetter conditions is anticipated, with April's precipitation climbing to 41 mm (1.6 in), paving the way for the island's lush growth and vibrant landscapes. The early part of the year lays the groundwork for a gradual rise in rainfall through the hotter months, culminating in the peak precipitation of September. The rhythm of Saint Croix’s climate signals a dance of dry and wet periods, enhancing the island's natural beauty throughout the seasons.

March Precipitation Trends in Saint Croix

The chart displays monthly precipitation patterns in Saint Croix, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Saint Croix, March typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec343134415759921231561309850
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Saint Croix

In March, Saint Croix maintains a consistent humidity level of 77%, mirroring the figures from both January and February. This steadiness hints at the island's tropical climate, where moisture remains relatively stable at the start of the year. As spring approaches and transitions into summer, humidity begins to creep upward, culminating in June's peak at 81%. This gradual rise continues through the summer months, emphasizing the lush, vibrant atmosphere characteristic of the Virgin Islands. Overall, March's humidity sets the stage for the increasingly sultry conditions that follow as the seasons change.

March Average Humidity in Saint Croix

This chart illustrates the average monthly humidity levels in Saint Croix, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Saint Croix is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%77%77%78%79%81%83%82%80%79%79%78%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Saint Croix

In March, the UV Index in Saint Croix, Virgin Islands reaches a striking 13, categorizing it as extreme and reflecting a trend of heightened solar intensity that begins in February and persists through June. With a burn time of just 10 minutes, this month signals that outdoor enthusiasts should take extra precautions against sun exposure. As spring unfolds, it’s essential for residents and visitors alike to be vigilant, wearing adequate sun protection and seeking shade during the peak hours. Following March, the UV ratings remain consistently high, emphasizing the need for continued awareness and safety measures. For more detailed information, visit Saint Croix UV Index.

Maximum UV Index Levels in Saint Croix for March

The chart shows the monthly maximum UV Index (UVI) for Saint Croix in March, 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. In March, the maximum UV index in Saint Croix typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9111313131313131412109
Data source: Saint Croix March 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.

March Sunshine in Saint Croix

March in Saint Croix, U.S. Virgin Islands, is a dazzling spectacle of sunshine, where nature seems to celebrate by showering the island with an impressive 349 hours of bright, radiant light. This surge in sun-drenched hours marks a noticeable uptick from February's 303 hours and sets the tone for the months ahead. As spring unfolds, the island transitions seamlessly into an even sunnier April with 347 hours and a vibrant May, which boasts the highest monthly sunshine total at 361 hours. Such trends not only invite visitors to bask in the tropical warmth but also highlight the island's allure as a perfect haven for sun-seekers. With this consistent crescendo of sunlight, March serves as a delightful prelude to the forthcoming summer months.

Monthly Sunshine Duration in Saint Croix: March Highlighted

The March sunshine duration represents the total number of hours Saint Croix experiences direct sunlight during the month of March, excluding cloudy or obstructed periods. This chart compares the sunshine duration of March with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec260h303h349h347h361h344h356h349h319h318h307h321h
Data source: Saint Croix March Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Saint Croix During March

March in Saint Croix, Virgin Islands, boasts a favorable likelihood of sunny weather, with a sun chance of 71%. This marks a slight decrease from the sunnier February (72%), yet remains a reliable choice for beachgoers and outdoor enthusiasts. The sun's presence in March is significantly higher than in the upcoming months of April (49%) and June (23%), reflecting the region's attractive early spring climate. Following a trend of prolonged sunshine, which peaks in February, March continues to offer a delightful mix of warmth and light, making it an ideal time for visitors to soak up the sun before the summer heat sets in.

Percentage of Sunny Days in March in Saint Croix

The chart illustrates the percentage of sunny days in Saint Croix throughout the year, with March 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 Saint Croix experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec55%72%71%49%61%23%47%46%61%57%68%68%
Data source: Saint Croix March chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Saint Croix in March

In March, the beautiful island of Saint Croix in the U.S. Virgin Islands enjoys an increase in daylight, with 12 hours of sunshine gracing its stunning beaches and lush landscapes. This marks a shift from the consistent 11 hours seen in the preceding months of January and February, signaling the approach of spring and inviting more outdoor activities. As the days grow longer into April and May, maintaining 12 hours of daylight, residents and visitors alike can relish the vibrant sunsets and extended evenings. This gradual increase in daylight sets the stage for summer, where from June to July, the island basks in up to 13 hours of daylight, creating an idyllic atmosphere for leisurely pursuits and exploration.

Average Daylight Hours in Saint Croix for March

The chart illustrates the variation in daylight duration in Saint Croix throughout the year, with March highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 11m11h 33m12h 2m12h 32m12h 57m13h 9m13h 3m12h 40m12h 12m11h 42m11h 17m11h 4m
Data source: Saint Croix daylight hours, calculated by summing the hours between sunrise and sunset for each day.

March Winds in Saint Croix

In March, Saint Croix experiences a refreshing breeze with an average wind speed of 7.4 m/s (17 mph), slightly higher than January's gentle gusts but not as robust as February's peak of 8.9 m/s (20 mph). This moderate wind creates a delightful atmosphere, perfect for outdoor activities and beach outings. As spring approaches, the winds gradually begin to taper off into April, which sees a drop to 6.4 m/s (14 mph). Overall, March's winds maintain a pleasant rhythm, balancing energy with the island's serene landscape, making it an ideal time to enjoy the natural beauty of the Virgin Islands.

Average March Wind Speed in Saint Croix

The chart displays monthly wind speed patterns in Saint Croix, with values for each month shown alongside March's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how March's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec7.18.97.4 m/s6.47.28.18.57.45.56.16.48.0
Data source: Saint Croix March wind data, generated using information from the Copernicus Climate Change Service.

How March Weather in Saint Croix Compares to Other Months

Weather in Saint Croix varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Saint Croix, focusing on differences in temperature, rainfall, humidity, and UV levels.

In comparing the weather between March and January, both months showcase similar temperature ranges and humidity levels. March maintains a minimum temperature of 23°C (73°F) and an average of 25°C (77°F), with a maximum of 26°C (80°F). In contrast, January offers slightly warmer conditions, with a minimum of 23°C (74°F), an average of 25°C (78°F), and a peak temperature of 27°C (81°F). Precipitation levels are equal at 34 mm (1.3 in) for both months, although January experiences rain over 13 days, whereas March sees rainfall on 11 days. Despite these minor differences, both months maintain a consistent humidity level of 77%. For more in-depth information, you can check Saint Croix weather in January.

In February, temperatures in Saint Croix range slightly cooler, with a minimum of 22°C (72°F) and a maximum of 27°C (81°F), while the average temperature remains steady at 25°C (77°F). Comparatively, March sees a minimal increase in the minimum temperature to 23°C (73°F) and a slight decrease in the maximum to 26°C (80°F). Both months experience similar levels of precipitation, with March recording 34 mm (1.3 in) and February 31 mm (1.2 in), each with rain on approximately 11 days. Humidity levels remain consistent at 77% for both months. For a detailed view of February's weather, visit Saint Croix weather in February.

In comparing the weather between March and April, we see a slight increase in temperatures, with April averaging 26°C (78°F) compared to March's average of 25°C (77°F). The maximum temperatures also rise in April to 28°C (82°F), while March peaks at 26°C (80°F). In terms of precipitation, April experiences a bit more rainfall, with 41 mm (1.6 in) across 10 days, compared to March's 34 mm (1.3 in) over 11 days. Humidity remains relatively stable, increasing slightly from 77% in March to 78% in April. For more detailed information, visit Saint Croix weather in April.

In March, temperatures in Saint Croix typically range from a minimum of 23°C (73°F) to a maximum of 26°C (80°F), with an average of 25°C (77°F). The month sees about 34 mm (1.3 in) of precipitation over roughly 11 days, and humidity levels hover around 77%. In contrast, May experiences slightly warmer temperatures, with a minimum of 24°C (75°F), an average of 26°C (80°F), and a maximum reaching 28°C (83°F). Precipitation increases to 57 mm (2.2 in) across about 13 days, accompanied by a marginal rise in humidity to 79%. For more details, you can check Saint Croix weather in May.

In March, the weather in Saint Croix features a mild climate with average temperatures ranging from 23°C (73°F) to a pleasant maximum of 26°C (80°F). The month sees around 34 mm (1.3 in) of precipitation over 11 days and a humidity level of 77%. In contrast, June experiences slightly warmer temperatures, with a minimum of 25°C (77°F) and an average hitting 27°C (81°F), reaching a maximum of 29°C (84°F). Rainfall increases in June to 59 mm (2.3 in) across 17 days, resulting in a higher humidity level at 81%. For a more detailed look at the weather conditions in June, you can visit Saint Croix weather in June.

March and July exhibit notable differences in weather patterns. In March, temperatures range from a mild 23°C (73°F) to a maximum of 26°C (80°F), with an average temperature of 25°C (77°F). This month sees about 34 mm (1.3 in) of precipitation over 11 days, with humidity levels at 77%. In contrast, July experiences warmer temperatures, with a minimum of 25°C (78°F), an average of 27°C (82°F), and a maximum of 29°C (84°F). Precipitation increases significantly to 92 mm (3.6 in) spread over 19 days, accompanied by slightly higher humidity at 83%. For more detailed insights, you can check Saint Croix weather in July.

When comparing the weather in March to that of August, it's evident that August tends to be warmer and wetter. In March, temperatures range from a minimum of 23°C (73°F) to a maximum of 26°C (80°F), with an average temperature of 25°C (77°F) and relatively low precipitation of 34 mm (1.3 in) over 11 days. On the other hand, August sees higher temperatures, with a minimum of 25°C (77°F), an average of 28°C (82°F), and a maximum of 29°C (85°F). The month also brings a significant increase in rainfall, with 123 mm (4.8 in) falling over 17 days, resulting in higher humidity levels around 82%. For more specifics, you can check out Saint Croix weather in August.

In March, the weather on Saint Croix is relatively mild, with temperatures ranging from a minimum of 23°C (73°F) to an average of 25°C (77°F), peaking at 26°C (80°F). The month experiences moderate precipitation, averaging 34 mm (1.3 in) over about 11 days, and humidity remains at a comfortable 77%. In contrast, September brings warmer temperatures, with a minimum of 25°C (78°F) and an average of 28°C (82°F), reaching a maximum of 29°C (85°F). However, this month is notably wetter, receiving 156 mm (6.2 in) of rainfall over 20 days, while humidity slightly increases to 80%. For more detailed insights on September's weather, you can visit Saint Croix weather in September.

In comparing the weather of March and October, we observe that October tends to be warmer, with average temperatures ranging from a minimum of 25°C (77°F) to a maximum of 29°C (85°F), while March has slightly cooler temperatures, with a minimum of 23°C (73°F) and a maximum of 26°C (80°F). Additionally, October experiences significantly more rainfall, totaling 130 mm (5.1 in) over 18 days, compared to March's 34 mm (1.3 in) over 11 days. Humidity levels remain fairly similar, with March at 77% and October at 79%. For more detailed insights, you can check Saint Croix weather in October.

March and November present warm and humid weather, but they differ in both temperature and rainfall. In March, the temperatures are slightly cooler, with averages around 25°C (77°F) and maximums reaching 26°C (80°F), while November sees slightly higher temperatures, with averages of 27°C (81°F) and maximums of 28°C (83°F). Precipitation is notably higher in November, with 98 mm (3.9 in) over 17 days compared to March's 34 mm (1.3 in) over 11 days. Both months feature high humidity, but November maintains a marginally higher level at 79% compared to March's 77%. For more detailed information about November's climate, visit Saint Croix weather in November.

In comparing the weather between March and December, both months experience mild temperatures, but December is slightly warmer overall. In March, temperatures range from a minimum of 23°C (73°F) to a maximum of 26°C (80°F), with an average of 25°C (77°F). In contrast, December sees temperatures that begin at a minimum of 24°C (75°F) and peak at 28°C (83°F), with an average of 26°C (79°F). Precipitation is also higher in December, with 50 mm (2.0 in) falling over 16 days, compared to March's 34 mm (1.3 in) over 11 days. Humidity levels are similar, with March at 77% and December slightly higher at 78%. For more detailed information, you can check the Saint Croix weather in December.

Compare Saint Croix's Climate with Cities Worldwide

Conclusion: What to Expect From March Weather in Saint Croix

As March graces Saint Croix, the weather begins to transition, offering a delightful mix of warmth and occasional showers. With temperatures generally hovering around 25°C (77°F), it’s a perfect time for those looking to escape colder climates. While the humidity remains steady at 77%, the slight uptick in precipitation — spanning 11 days with a total of 34 mm — adds a refreshing touch to the atmosphere, distinguishing it from the drier months before and after. Whether you’re basking under the sun or enjoying the gentle rains, March provides a unique charm that complements the island's stunning beauty. For a deeper dive into the seasonal patterns, check out Saint Croix Climate.