Last updated: August 21, 2025
March in Saint John's, Antigua and Barbuda offers a delightful blend of warm temperatures and mild humidity, making it an inviting time for visitors. With maximum temperatures reaching 26°C (80°F) and an average of 25°C (77°F), the balmy weather is accompanied by a minimum of 23°C (73°F) at night. While light rain is a possibility, with 31 mm (1.2 in) of precipitation spread over 11 days, the lush landscapes benefit from this brief moisture. Humidity levels hover around 76%, contributing to the island's tropical charm. Overall, March is a perfect month to soak in the vibrant culture and stunning scenery of this Caribbean paradise.
In March, Saint John's, Antigua and Barbuda experiences a delightful continuation of the warming trend seen in earlier months, with temperatures remaining comfortably mild. The minimum temperature settles around 23°C (73°F), while the average temperature hovers at a pleasant 25°C (77°F), and the maximum peaks at 26°C (80°F). This slight rise from February is indicative of the region's transition into spring, where sunny days and balmy evenings invite both relaxation and adventure. As the month progresses, visitors can expect a consistent and inviting climate, perfect for exploring the stunning beaches and vibrant local culture. Overall, March offers a seamless blend of warmth and comfort, making it an ideal time to enjoy all that Antigua has to offer.
In March, Saint John's, Antigua and Barbuda experiences a moderate level of precipitation, with 31 mm (1.2 in) of rain recorded over approximately 11 days. This amount reflects a slight decrease from the preceding months, where January and February each saw a bit more rainfall. As the transition into the wetter season begins, the relatively low precipitation in March hints at a gradual change in weather patterns. This trend sets the stage for an increase in rainfall during the coming months, with April nudging up to 38 mm (1.5 in). Overall, March serves as a pivotal moment, balancing between the drier winter months and the approaching summer rains, making it an essential month for anticipating the region's climatological shifts.
In March, Saint John's experiences a humidity level of 76%, consistent with the previous month and indicative of the dry spell that typically characterizes early spring. This slight stability in humidity reflects a trend seen from January to March, where levels hover in the mid-70s. As the island transitions into April, a noticeable increase in humidity to 78% marks the beginning of the more humid summer months ahead. The gradual rise in humidity peaking during the summer, reaching 84% in July, underscores the island's tropical climate, making early spring an ideal time for visitors to enjoy the pleasant weather before the more humid and warmer weeks arrive.
In March in Saint John's, Antigua and Barbuda, the UV Index escalates to an extreme rating of 13, indicating that sun exposure carries increased risk. With a burn time of just 10 minutes, it's essential for residents and travelers alike to take precautions when enjoying the beautiful outdoors. This trend of high UV levels, peaking in July at 14, underscores a consistent pattern where the UV Index remains notably elevated from February through to October. As the months progress, the importance of sun safety becomes increasingly apparent. To learn more about UV levels throughout the year, visit Saint John's UV Index.
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March in Saint John's, Antigua and Barbuda, heralds a delightful transition toward summer with an impressive 348 hours of sunshine. This marks a significant increase from January's 262 hours and February's 302 hours, highlighting the sun's growing prominence as spring unfolds. Following March, the days remain bright and warm, continuing into April with 343 hours and peaking in May at 357 hours. The consistent pattern of prolonged daylight indicates a vibrant seasonal shift, promising plenty of opportunities for outdoor adventures and relaxation under the sun. As the year progresses, sunshine remains plentiful, but March stands out as a pivotal moment when the island truly begins to bask in the sun's embrace.
In March, Saint John's, Antigua and Barbuda, experiences a 64% chance of sunny weather, making it a delightful choice for those seeking warmth and sunshine. This period follows a notably brighter February, which boasts a robust 71% sunshine likelihood, yet it marks a drop from the peak months’ chances. As spring emerges, though March's sunlit days are a welcome respite, they hint at a seasonal trend where the likelihood of clear skies begins to wane in April with only 43% sunshine predicted. Notably, the first quarter of the year shines the brightest in this tropical locale, with January and February both showcasing higher chances of sun, creating a sweet spot for sun-seekers. Overall, while March may not match the brilliance of its predecessor, it stands out as a reasonably sunny month before the weather turns more unpredictable as summer approaches.
In March, Saint John's, Antigua and Barbuda experiences an invigorating increase in daylight, with the duration extending to 12 hours. This marks a notable shift from the consistent 11 hours seen in January and February, suggesting the arrival of spring and longer days ahead. As the island transitions into April and May, daylight remains steady at 12 hours, providing ample time for outdoor activities and exploration. Following this peak, June and July gift the island with 13 hours of bright sunshine, the longest stretch of the year, before a gradual decline in daylight begins in August. This rhythmic pattern of daylight underscores the island’s cyclical climate, inviting both residents and visitors to relish the abundant natural light while it lasts.
In March, the winds in Saint John's, Antigua and Barbuda show a slight uptick in strength, with an average speed of 7.5 m/s (17 mph), making it one of the more breezy months of the year. This gentle invigorating breeze, a subtle increase from February’s 9.2 m/s (21 mph), is a delightful shift as the island transitions into spring. Following March, however, the wind speeds begin to taper off, peaking in the summer months but often remaining milder through the hotter season. The March winds, while not the strongest of the year, play a significant role in creating a fresh and lively atmosphere, ideal for enjoying outdoor activities and the stunning Caribbean scenery.
Weather in Saint John's varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Saint John's, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between January and March, both months exhibit similar temperature ranges, with January slightly cooler, featuring a minimum of 23°C (73°F) and a maximum of 27°C (80°F), while March maintains a similar range but tends to utilize the lower end more frequently. Precipitation levels are slightly lower in March, totaling 31 mm (1.2 in) over 11 days, compared to January's 34 mm (1.4 in) over 12 days. Humidity remains consistent across both months, with January at 77% and March at 76%. For a more detailed look at January's climate, you can visit Saint John's weather in January.
When comparing the weather in March to February, we see minimal temperature variation, with both months showcasing similar averages: March has a minimum of 23°C (73°F) and max of 26°C (80°F), while February records a minimum of 22°C (72°F) and the same maximum. However, precipitation levels differ slightly, with March receiving 31 mm (1.2 in) over 11 days compared to February's 36 mm (1.4 in) over 14 days. Humidity remains constant at 76% for both months. For more detailed information about February's weather, you can visit Saint John's weather in February.
March and April exhibit similar warm temperatures, with March recording a minimum of 23°C (73°F) and a maximum of 26°C (80°F), while April sees a slight rise, with minimums remaining at 23°C (74°F) and maximums reaching 27°C (82°F). Both months have an average temperature of around 25°C (77°F-78°F). However, April experiences increased precipitation, totaling 38 mm (1.5 in) over 14 days compared to March's 31 mm (1.2 in) across 11 days, resulting in slightly higher humidity levels in April at 78% versus 76% in March. For more detailed insights, you can refer to Saint John's weather in April.
In March, the weather in Saint John's features mild temperatures with a minimum of 23°C (73°F) and an average of 25°C (77°F), while the maximum reaches 26°C (80°F). This month experiences relatively low precipitation at 31 mm (1.2 in), occurring on 11 days, and humidity levels average around 76%. In comparison, May sees a slight increase in temperatures, with a minimum of 24°C (75°F) and an average high of 28°C (82°F). Precipitation rises to 49 mm (1.9 in) over 15 days, and humidity increases to 79%. For more detailed information on the weather during this month, you can check Saint John's weather in May.
March and June exhibit similar warm temperatures, but June tends to be slightly warmer with average highs reaching up to 28°C (83°F) compared to March's maximum of 26°C (80°F). Both months experience considerable humidity, with June being marginally higher at 81%, while March has a humidity level of 76%. Precipitation also increases in June, totaling 52 mm (2.0 in) over 14 days, compared to March’s 31 mm (1.2 in) across 11 days. For more detailed insights, check out Saint John's weather in June.
In comparing the weather between March and July, March features slightly milder temperatures with a minimum of 23°C (73°F) and an average of 25°C (77°F), while July sees warmer conditions with a minimum of 25°C (78°F) and an average of 27°C (81°F). Precipitation also rises significantly in July, with 81 mm (3.2 in) of rain falling across 19 days compared to March's 31 mm (1.2 in) across 11 days. Additionally, humidity peaks in July at 84%, compared to 76% in March, contributing to a more tropical feel during the mid-summer month. For more detailed information, you can check Saint John's weather in July.
In comparing the weather between March and August, March tends to be slightly cooler, with average temperatures ranging from a minimum of 23°C (73°F) to a maximum of 26°C (80°F). In contrast, August experiences warmer conditions with temperatures averaging between 25°C (78°F) and reaching highs of 29°C (84°F). Precipitation levels also differ significantly; March sees 31 mm (1.2 in) over approximately 11 days, while August has a much higher rainfall of 97 mm (3.8 in) spread across 18 days. Additionally, humidity levels are higher in August at 83%, compared to March's 76%. For more detailed weather information, you can visit Saint John's weather in August.
In comparing the weather between March and September, there are notable differences in temperature, precipitation, and humidity. March experiences milder temperatures with a minimum of 23°C (73°F) and an average of 25°C (77°F), while September sees warmer conditions, starting with a minimum of 25°C (77°F) and averaging 28°C (82°F). The humidity slightly increases from March at 76% to September's 80%. However, the most striking contrast is in precipitation; September is significantly wetter, with 144 mm (5.7 in) of rain across 21 days, compared to March's 31 mm (1.2 in) over just 11 days. For more detailed insights, you can check Saint John's weather in September.
When comparing the weather in March and October, March tends to be slightly cooler with average temperatures ranging from a minimum of 23°C (73°F) to a maximum of 26°C (80°F). In contrast, October experiences warmer temperatures, with averages ranging from a minimum of 25°C (77°F) to a maximum of 29°C (85°F). Precipitation is notably higher in October, with 109 mm (4.3 in) of rain over 18 days, compared to March's 31 mm (1.2 in) over 11 days. Humidity levels are also slightly higher in October at 79%, as opposed to 76% in March. For more detailed information about the weather in October, you can visit Saint John's weather in October.
When comparing the weather in March and November, it's notable that both months feature warm temperatures, but November tends to be slightly warmer overall. March experiences a minimum temperature of 23°C (73°F) and averages around 25°C (77°F), while November sees a minimum of 24°C (76°F) and an average of 27°C (80°F). Precipitation also differs markedly, with March receiving 31 mm (1.2 in) over 11 days, compared to November's 94 mm (3.7 in) over 17 days. Additionally, humidity levels are slightly higher in November at 80%, compared to March's 76%. For a more detailed look at November weather, you can visit Saint John's weather in November.
March and December exhibit similar warm temperatures, with March seeing an average of 25°C (77°F) and December slightly warmer at 26°C (79°F). Both months experience relatively high humidity, hovering around 76% in March and 78% in December. However, precipitation levels differ significantly; March receives 31 mm (1.2 in) over 11 days, while December experiences a higher total of 52 mm (2.1 in) across 18 days. This indicates that travelers might encounter more rainy days in December. For more detailed information, you can check Saint John's weather in December.
March in Saint John emerges as a delightful transition into the warmth of spring, distinct from the cooler, wetter months preceding it. With pleasant average temperatures hovering around 25°C, the days are comfortably warm, inviting outdoor exploration. While the city does see some rainfall—about 31 mm over 11 days—it feels refreshing rather than overwhelming, especially with humidity levels sitting at 76%. This blend of warmth and occasional showers creates a vibrant atmosphere perfect for enjoying the scenic beauty of Antigua's coast. For a deeper dive into what you can expect throughout the year, visit Saint John's Climate.