Last updated: October 31, 2025
In June, Gustavia, Saint Barthélemy offers a warm tropical climate, with average temperatures hovering around 27°C (81°F), peaking at a comfortable 28°C (84°F) and dipping to a minimum of 25°C (76°F). The month witnesses a blend of sun and rain, accumulating 49 mm (1.9 in) of precipitation over approximately 14 days, creating a lush environment. Humidity levels are high at 81%, enhancing the tropical atmosphere and perfect for those seeking both relaxation and adventure amidst stunning island vistas.
In June, temperatures in Gustavia, Saint Barthélemy mark a noticeable shift towards warmth as the island embraces the summer season. With a minimum of 25°C (76°F) and an average temperature climbing to 27°C (81°F), locals and visitors alike can savor the balmy climate. The maximum reaches a comfortable 28°C (84°F), perfect for beach lounging or exploring the vibrant island culture. Compared to previous months, June stands out with higher temperatures, setting the stage for the sunny days ahead. This trend of increasing warmth will continue into July and August, making June an ideal time to enjoy the island's enchanting beauty before the peak of summer heat.
In Gustavia, Saint Barthélemy, June marks a noticeable shift in precipitation patterns, with the month recording an average of 49 mm (1.9 in) of rain over 14 days. This increase follows the prelude of May, which saw 47 mm (1.8 in) across 12 days, hinting at the onset of a wetter season. As summer approaches, July and August continue this trend, showcasing significant jumps in rainfall—80 mm (3.2 in) and 86 mm (3.4 in) respectively—signaling a period of more frequent and heavier downpours. The gradual rise in both precipitation amount and days suggests that residents and visitors alike should be prepared for the lush, tropical environment that June heralds, setting the stage for the island's vibrant, yet occasionally rainy, summer.
As June rolls into Gustavia, Saint Barthélemy, the humidity reaches 81%, marking a notable increase from the steady 79% observed in May. This rise is a part of a gradual upward trend throughout the spring months, reflecting the island's transition into summer. With July following closely at 83%, the warm tropical climate becomes even more pronounced, inviting visitors to enjoy the vibrant beauty of the island. This progression suggests that while Gustavia embraces the lush allure of summer, guests should prepare for a balmy atmosphere filled with the essence of island life. As the humidity peaks in mid-summer, it's a perfect time for beachgoers to soak up the sun interspersed with refreshing ocean breezes.
In June, Gustavia, Saint Barthélemy boasts a consistently intense UV Index of 13, placing it firmly in the extreme exposure category. With a burn time of just 10 minutes, beachgoers and sun worshippers must exercise caution when basking under the Caribbean sun. This month's UV levels reflect a broader trend observed from March through October, where the UV Index remains high, reaching its peak in the summer months. As the year progresses, the UV Index dips slightly in November and December, dropping back to levels categorized as very high. For those planning outdoor activities, understanding these trends is crucial for safe sun exposure. For more detailed information, visit Gustavia UV Index.
UV Risk Categories
In June, Gustavia, Saint Barthélemy enjoys a splendid 345 hours of sunshine, perfectly nestled between the dappled brightness of May and the basking warmth of July. This delightful month showcases a sunny trend that begins in January with 259 hours and gradually builds, reaching a peak in July with 364 hours. With each passing month leading into summer, the hours of sunshine not only increase but also enhance the vibrancy of this stunning Caribbean locale. June serves as a picturesque transition, where the sunny days prepare visitors for the high-energy summer months ahead, reinforcing the island's reputation as a premier sun-soaked destination.
In Gustavia, Saint Barthélemy, the likelihood of sunny weather in June takes a noticeable dip, with only a 25% chance of sunshine. This statistic stands in stark contrast to the sunnier months preceding it, such as February and March, which boast impressive probabilities of 71% and 72%, respectively. As spring transitions to summer, the trend indicates a shift toward variable weather; notably, May enjoys a more favorable 60% chance, yet June's forecast suggests a greater reliance on cloud cover. With July and August projected to bring back moderate sunshine at 50% and 47%, June stands out as a less predictable month for sun-seekers. Thus, while the lure of tropical beauty remains ever-present, visitors might want to prepare for occasional overcast skies during their June excursions.
In June, Gustavia, Saint Barthélemy basks in an inviting 13 hours of daylight, marking the peak of spring's warm embrace. This trend of increasing daylight begins in March as the days gradually extend from 12 hours through April and May, leading into the summer months of June and July, which both enjoy the longest days of the year. Following this peak, the daylight duration will gently taper off, transitioning back to 12 hours in August and settling back to 11 hours by October. This gradual elongation and subsequent shortening of daylight not only enhance the island’s vibrant natural beauty but also invite visitors to indulge in the sun-soaked paradise that Gustavia offers.
In June, Gustavia, Saint Barthélemy, welcomes a refreshing average wind speed of 8.1 m/s (18 mph), marking a slight uptick from the gentler breezes of the previous months. This gradual increase in wind speed from May's 7.1 m/s signals a transition into the summer season, where conditions become ideal for sailing and water sports. Compared to August's drop to 7.1 m/s, June stands out as a vibrant month, setting the stage for invigorating sea activities while still retaining that laid-back Caribbean charm. This pattern, with winds typically peaking in July at 8.4 m/s (19 mph) and tapering into the calmer fall months, ensures that June offers just the right balance of excitement and leisure for visitors and locals alike.
Weather in Gustavia varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Gustavia, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in June and January, we see that June is generally warmer and more humid. June has an average temperature of 27°C (81°F), with highs reaching up to 28°C (84°F) and humidity at 81%. In contrast, January’s temperatures are slightly cooler, averaging 25°C (78°F), with maximum temperatures of 27°C (81°F) and lower humidity at 77%. Additionally, June experiences more precipitation, with 49 mm (1.9 in) over 14 days, compared to January's 35 mm (1.4 in) over 13 days. For more details on January weather, you can check this link: Gustavia weather in January.
When comparing the weather in June and February, June generally presents warmer temperatures, with daily averages around 27°C (81°F) compared to February’s average of 25°C (77°F). The maximum temperatures in June reach up to 28°C (84°F), while February sees a peak of 26°C (80°F). Additionally, June has higher humidity levels at 81%, which is slightly more uncomfortable than February’s 77%. Precipitation is more frequent in June, occurring on 14 days and totaling 49 mm (1.9 in), while February experiences less rainfall at 35 mm (1.4 in) over 11 days. For a more detailed look at February’s weather specifics, you can check out Gustavia weather in February.
When comparing the weather in June and March, June exhibits a warmer climate with an average temperature of 27°C (81°F), compared to March's slightly cooler average of 25°C (77°F). June also has higher minimum and maximum temperatures, with values reaching up to 28°C (84°F), while March peaks at 26°C (79°F). Additionally, June experiences more precipitation, recording 49 mm (1.9 in) over 14 days, compared to March's 27 mm (1.1 in) over 10 days. The humidity is also slightly higher in June at 81%, compared to 77% in March. For more detailed information on March weather, you can visit Gustavia weather in March.
In June, the weather is slightly warmer than in April, with average temperatures rising to 27°C (81°F) compared to April's average of 25°C (78°F). Both months experience a similar range in maximum temperatures, but June sees a higher minimum temperature of 25°C (76°F) versus April's 23°C (74°F). Additionally, June is characterized by increased humidity at 81%, compared to April's 78%, contributing to a more muggy feel. Precipitation is also more frequent in June, with 49 mm (1.9 in) recorded over 14 days, while April experiences 34 mm (1.3 in) over 11 days. For more insights on April weather, you can check Gustavia weather in April.
In comparing the weather between May and June, we see a slight increase in temperature, with June averaging 27°C (81°F) compared to May's 26°C (79°F). The maximum temperatures remain similar, both reaching 28°C (82°F in May and 84°F in June). However, June experiences marginally more precipitation at 49 mm (1.9 in) over 14 days, compared to May's 47 mm (1.8 in) over 12 days. Humidity levels also rise slightly in June at 81%, compared to 79% in May, indicating a more humid atmosphere as summer approaches. For more specific details about May weather, you can check out Gustavia weather in May.
In June, the weather in Gustavia features mild temperatures, with an average of 27°C (81°F) and maximum highs reaching 28°C (84°F). However, June experiences relatively lower precipitation, totaling 49 mm (1.9 in) over about 14 days, accompanied by humidity around 81%. In contrast, July sees a slight increase in maximum temperatures, rising to 29°C (84°F), and the average remains the same at 27°C (81°F). This month experiences heavier rainfall, with precipitation increasing to 80 mm (3.2 in) over 17 days and a slight rise in humidity to 83%. For a detailed look at July weather, you can check Gustavia weather in July.
In comparing the weather between June and August, both months exhibit warm temperatures with only slight variations. June has a minimum temperature of 25°C (76°F) and an average of 27°C (81°F), while August shows a marginal increase with an average temperature of 28°C (82°F). Precipitation levels in June are noticeably lower, recorded at 49 mm (1.9 in) over 14 days, compared to August, which experiences 86 mm (3.4 in) over 16 days. Humidity remains relatively high in both months, with June at 81% and August slightly higher at 82%. For a detailed outlook on August weather, you can check Gustavia weather in August.
In June, the weather tends to be warm with average temperatures ranging from a minimum of 25°C (76°F) to a maximum of 28°C (84°F), accompanied by an average humidity of 81%. The month experiences moderate precipitation, totaling 49 mm (1.9 in) over approximately 14 days. In contrast, September sees slightly warmer temperatures overall, with averages between 25°C (77°F) and 29°C (85°F), and an increase in rainfall, totaling 152 mm (6.0 in) across about 22 days. Despite the slight drop in humidity to 80%, the increased precipitation in September can create a noticeably different feel. For more detailed insights, check out Gustavia weather in September.
In June, the weather typically presents a warm atmosphere with minimum temperatures around 25°C (76°F) and maximum temperatures reaching 28°C (84°F). Humidity is relatively high at 81%, with an average precipitation of 49 mm (1.9 in) spread over 14 days.
In contrast, October experiences slightly warmer temperatures, with a minimum of 25°C (77°F) and a maximum of 29°C (85°F). However, it sees more rain, totaling 113 mm (4.4 in) over 19 days, while the humidity remains just a notch lower at 79%. For more information about weather conditions in October, check out Gustavia weather in October.
In June, the weather typically features a warm temperature range with a minimum of 25°C (76°F) and an average of 27°C (81°F), peaking at a maximum of 28°C (84°F). This month experiences around 49 mm (1.9 in) of precipitation over 14 days, accompanied by a high humidity level of 81%.
In contrast, November sees similar temperatures, with a minimum of 24°C (76°F), an average of 27°C (80°F), and a maximum of 28°C (83°F). However, it is noticeably wetter, accumulating 95 mm (3.8 in) of rainfall over 17 days, while humidity levels remain slightly lower at 79%. For more detailed insights on Gustavia weather in November, you can visit Gustavia weather in November.
June and December exhibit similar warm temperatures, with average highs around 28°C (82°F) in both months. In June, however, temperatures can reach a maximum of 28°C (84°F), slightly higher than December's peak of 28°C (82°F). Precipitation levels are comparable, with June recording 49 mm over 14 days and December slightly lower at 48 mm across 17 days. Humidity is also quite similar, being 81% in June and 78% in December, making both months feel moderately humid. For more specific details regarding December weather, you can refer to Gustavia weather in December.
As June unfolds in Gustavia, the weather begins to embrace the warmth of summer while still maintaining a touch of tropical charm. With temperatures consistently hovering around 27°C (81°F), visitors can expect comfortable days marked by high humidity typical of this season. Rainfall becomes more frequent, with about 14 rainy days and a total of 49 mm of precipitation, contributing to the lush landscapes that define the island. This shift from the drier months to the wetter ones adds a vibrant lushness to the scenery, making June a unique transitional period. For a deeper look into the seasonal variations, exploring the intricate details of Gustavia's weather patterns can be revealing—check out the full overview at Gustavia Climate.