Last updated: April 14, 2025
The climate of Antigua and Barbuda is characterized by a tropical maritime atmosphere, offering warm temperatures and distinct wet and dry seasons. February presents a pleasant minimum temperature of 22°C (72°F) in Saint John, while October peaks at a warm 29°C (85°F) in Barbuda. Rainfall varies significantly, with only 27 mm (1.1 in) of precipitation in March in Barbuda, escalating to 149 mm (5.8 in) in the wet month of September. Humidity levels also fluctuate, averaging a comfortable 76% in February in Saint Peter and peaking at 84% in July. This combination of climate factors supports a diverse ecosystem, making Antigua and Barbuda a desirable destination year-round.
Antigua and Barbuda boast a tropical rainforest climate, designated as Af in the Köppen-Geiger climate classification. This means that residents and visitors alike can expect warm temperatures and abundant rainfall throughout the year, fostering lush vegetation and vibrant ecosystems. Each region, from Barbuda to Saint George and beyond, shares this characteristic climate, creating a paradise for nature lovers and outdoor enthusiasts. The consistent warmth and rich biodiversity contribute to the islands' charm, making them an alluring destination for travelers seeking both adventure and relaxation.
| Climate Zone | Description |
|---|---|
| Af | Tropical rainforest climate with no dry season and high temperatures year-round. |
Antigua and Barbuda boast a delightful tropical climate, with temperatures exhibiting a warm and inviting range throughout the year. January welcomes visitors with lows around 23°C (73°F) in Saint Peter and comfortable highs reaching 27°C (80°F) in Saint John. As spring approaches in March, temperatures remain mild, with a minimum of 22°C (72°F) recorded in Barbuda and a peak of 26°C (80°F) in Saint Peter. By June, the heat begins to intensify, with a consistent minimum of 24°C (76°F) and maximums of 28–29°C (83–84°F). Notably, the summer months of July and August see sustained warmth, with minimums staying at 25°C (77°F) and highs reaching 29°C (84°F) in Saint John. As the year winds down, November and December bring slight cooling, with minimums around 24°C (76°F), yet the allure of temperatures rarely dips below this delightful average. Overall, whether visitors arrive in the coolness of early months or the balmy summer heat, Antigua and Barbuda remain a tropical paradise year-round.
In Antigua and Barbuda, precipitation patterns reveal a distinct rhythm throughout the year, with a notable increase in rainfall during the late summer months. March marks the driest period, with a modest 27 mm of rain recorded in Barbuda over just 9 days. In stark contrast, September experiences a dramatic surge in precipitation, with rainfall reaching up to 149 mm in Barbuda and occurring on as many as 21 days in Saint Peter. This clear seasonal variation highlights the islands' susceptibility to wetter weather during the hurricane season, underlining the importance of being prepared for the increased moisture and potential storms in the late summer.
In Antigua and Barbuda, humidity levels exhibit a clear seasonal pattern, generally ranging from a comfortable 76% in February to a peak of 84% in July in Saint Peter. This gradual increase in humidity aligns with the region's warmer months, creating a tropical atmosphere that is both inviting and vibrant. Travelers and residents alike can expect a more humid climate during the summer, contributing to the lush landscapes and the lively culture that characterize these beautiful islands.
In July, the UV Index in Antigua and Barbuda reaches notable heights, showcasing a trend of increased solar intensity during the peak of summer. Barbuda experiences an average daily maximum UV Index of 13, while Saint Peter records an even higher average of 14. These figures highlight the significance of sun protection during this time, as residents and visitors alike need to remain vigilant against the potential harm of intense UV radiation. As the region basks under the summer sun, understanding these trends becomes essential for outdoor activities and skin health.
UV Risk Categories
Antigua and Barbuda bask in abundant sunshine, especially during the summer months. In January, both Barbuda and Saint Peter enjoy a healthy dose of sunlight, with 261 hours and 262 hours respectively. However, as the year progresses, the sunny days peak in July, offering 361 hours in Saint Peter and a slightly higher 362 hours in Barbuda. This trend highlights a clear seasonal pattern where the islands receive significantly more sunshine during the summer, making it an ideal time for sun-seekers and outdoor enthusiasts to explore their stunning landscapes.
Antigua and Barbuda presents a vibrant tapestry of weather patterns throughout the year, with significant variance in sunshine likelihood between the months. For instance, visitors to Saint Peter in June can expect sunny skies just 26% of the time, making it less favorable for sun-seekers. In contrast, February in Barbuda boasts a much sunnier disposition, with a remarkable 72% likelihood of clear weather. This trend highlights the importance of timing your visit to fully enjoy the stunning, sun-drenched landscapes of these beautiful islands.
In Antigua and Barbuda, daylight hours vary significantly throughout the year, illuminating the islands with a rich tapestry of light and shadow. In December, Barbuda enjoys about 11 hours of daylight, offering a cozy ambience during the cooler winter months. In contrast, the summer month of June sees a substantial increase, with approximately 13 hours of sun per day, inviting longer outdoor adventures and vibrant evening gatherings. This seasonal shift not only underscores the tropical allure of these islands but also highlights the rhythmic dance between light and life, making Antigua and Barbuda a year-round paradise for sun-seekers.
The climate in Barbuda, Antigua and Barbuda is characterized by warm temperatures and vibrant humidity, making it an inviting destination year-round. From January to April, temperatures hover between 23°C (74°F) and 27°C (81°F), with mild precipitation, creating a pleasant atmosphere for outdoor activities. As summer approaches, temperatures peak in July and August, reaching up to 29°C (84°F) but are often accompanied by increased rainfall, particularly in September, when the island experiences its wettest month with 149 mm (5.8 in) of rain. Despite the humidity rising in mid-year, the beautiful shores and lush landscape remain appealing, making Barbuda a tropical paradise to explore. For more detailed insights on seasonal shifts, check out the Barbuda climate.
Saint George, Antigua and Barbuda, basks in a tropical climate characterized by warm temperatures year-round. With average highs fluctuating from a pleasant 26°C (79°F) in March to a sultry 29°C (84°F) during the peak of summer, visitors can expect consistently comfortable weather. However, the island does experience a distinct rainy season from July to October, peaking in September with 138 mm (5.4 in) of rainfall, while humidity levels hover around 80-84% during these months. For those planning a visit, understanding the climate is essential for making the most of an unforgettable experience in this beautiful locale—explore more at Saint George climate.
Nestled in the Caribbean, Saint John, Antigua and Barbuda boasts a delightful tropical climate that invites year-round exploration. January and February offer mild temperatures averaging around 25°C (77°F), while the summer months see a warm peak around 29°C (84°F), perfect for beach escapades. Although rainfall increases in July and August, with September peaking at 140 mm (5.5 in), the lush scenery that flourishes during this time is breathtaking. The humidity levels, ranging from 76% to 84%, complement the warm temperatures, creating a classic island atmosphere. Discover more about the year-round weather in this vibrant locale at Saint John climate.
Saint Mary, Antigua and Barbuda, boasts a tropical climate characterized by warm temperatures and a mix of sunshine and rain throughout the year. With daily averages ranging from a pleasant 25°C (77°F) in the cooler months to a balmy 28°C (82°F) in the summer, the island welcomes visitors with its inviting warmth. While humidity levels rise from 77% in January to 84% in July, the vibrant and lush landscapes thrive, particularly during the wetter months of September and October, when rainfall peaks. For travelers seeking a sun-soaked getaway, the climate in Saint Mary is a delightful blend of warmth and occasional refreshing showers, making it an ideal escape. Discover more about the enticing weather at Saint Mary climate.
Experience the tropical charm of Saint Paul, Antigua and Barbuda, where the climate invites you to bask in warm sunshine year-round. With temperatures ranging from a cozy 23°C (73°F) in January to a balmy 29°C (84°F) during the peak summer months, you'll find comfort in the warmth, especially from April through October. However, be prepared for the annual rainy season, which brings increased precipitation from July to September, peaking at 144 mm (5.7 in) in September. Humidity tends to rise during these hotter months, hovering around 84% in July and August, creating that quintessential Caribbean feel. For a more detailed look at the weather patterns, check out the Saint Paul climate.
Saint Peter, Antigua and Barbuda, boasts a tropical climate that delights visitors year-round. Temperatures hover comfortably between 23°C to 29°C (73°F to 84°F), with most months enjoying a pleasant average around 26°C (79°F). While the dry season sees lower precipitation between January and April, the summer months bring heavier rain, particularly in September, with up to 144 mm (5.7 in). Humidity levels rise from 77% in January to around 84% in July, adding a warm, tropical embrace to the island. For more details on seasonal nuances, explore the full report on Saint Peter climate.
Saint Philip, Antigua and Barbuda, enjoys a tropical climate characterized by warm temperatures year-round. From January to March, the average temperatures linger around a pleasant 25°C (77°F), gradually rising to a peak of 29°C (84°F) during the summer months of July and August. While the island experiences higher humidity, particularly in July and August, the rainy season sees its most significant precipitation in September with 144 mm. Despite occasional showers, it’s the warm, sunny days that truly define Saint Philip’s charm, making it an irresistible destination for sun-seekers. For more detailed climate insights, visit Saint Philip climate.
The climate of Antigua and Barbuda showcases a warm tropical environment, characterized by mild temperatures and varying precipitation throughout the year. With minimum temperatures hovering around 22°C (72°F) in February and maximums reaching 29°C (85°F) in October, residents and visitors enjoy a generally warm climate. However, rainfall patterns reveal significant fluctuations, with March in Barbuda experiencing a low of 27 mm while September sees a peak of 149 mm, highlighting the impact of the wet season. Humidity levels further contribute to the climate's character, ranging from 76% in February to a steamy 84% in July, underscoring the island's tropical essence. Overall, Antigua and Barbuda offer a lush environment shaped by both warmth and moisture, inviting exploration all year round.