Climate and monthly weather forecast
Saint Barthélemy

Saint Barthélemy, often simply referred to as St. Barts, is an overseas collectivity of France nestled in the Caribbean Sea. The island, covering a mere 21 square kilometers, is characterized by its hilly terrain with shallow reefs surrounding it. Positioned in the Tropical wet and dry or savanna climate zone, its weather remains relatively consistent throughout the year. The mean average of annual temperatures fluctuates minimally, hovering around 27.1°C (80.8°F). This provides Saint Barthélemy with a warm tropical climate, marked by two main seasons: the wet and the dry season. The consistent temperature makes the island a popular destination for those seeking a year-round tropical getaway.

The most optimal period for visiting Saint Barthélemy is during its dry season, typically spanning from December to April. During these months, tourists can expect lower humidity levels, less frequent rainfall, and overall more pleasant weather conditions. Coupled with the warmth, the dry season offers sunlit days suitable for beach activities and exploration. The reduced likelihood of heavy rainfall during this period ensures fewer disruptions in outdoor plans.

June to November marks the wet season in Saint Barthélemy. This period sees increased rainfall and a heightened risk of hurricanes or tropical storms. The humidity levels also tend to surge, which some visitors may find uncomfortable. Although the island remains beautiful during these months, potential travelers should be prepared for intermittent weather disruptions and should monitor tropical storm advisories if planning a trip during this window.

In Saint Barthélemy, spring months, particularly March to May, are characterized by gradually increasing humidity. The temperatures remain steady, generally hovering around the 27.1°C (80.8°F) mark. Rainfall during these months is relatively moderate, ensuring that outdoor activities remain largely undisturbed. Visitors during this period will also enjoy the island's lush greenery as it comes to life after the dry season.

Summer, from June to August, brings the onset of the wet season. The consistent warmth around 27.1°C (80.8°F) persists, but is accompanied by increased humidity. Rain showers become more frequent, although they tend to be brief. Despite this, the sun often shines brightly between spells, but travelers should be prepared for occasional weather changes and the potential for tropical disturbances.

Autumn, primarily September and October, is the peak of the wet season. Rainfall is at its highest, and the threat of hurricanes or tropical storms is most significant during these months. The temperatures remain warm, averaging 27.1°C (80.8°F), but the island experiences less sunshine. Prospective visitors during this season should prioritize safety and stay updated on weather advisories.

Winter in Saint Barthélemy, from November to February, witnesses the transition from the wet to the dry season. By December, rainfall decreases, making way for clearer skies and optimal beach weather. The consistent warm temperatures continue to invite tourists. This period, especially the months of December and January, tends to attract a large influx of visitors due to the pleasant climate and festive atmosphere.

January is one of the most favored months in terms of weather on the island of Saint Barthélemy. Nestled in the Caribbean, the island doesn’t have specific notable cities based on climate variations as it is relatively small in size, ensuring that the entire island experiences similar weather conditions. Temperature-wise, January offers comfortable warmth with temperatures ranging from a minimum of 25°C (77°F) in the evenings to a maximum of 29°C (84.2°F) during daytime. Weather in January »

February continues the warm and welcoming trend initiated in January on the island of Saint Barthélemy. Given the island's compact size, the entire region enjoys relatively uniform weather conditions, free from city-specific climate variations. In February, the temperatures experience a subtle rise, with the mercury oscillating between a gentle 25.5°C (77.9°F) during the cooler nights and reaching up to 29.5°C (85.1°F) in the sunlit afternoons. Weather in February »

March in Saint Barthélemy sees a gradual transition as the island slowly inches towards the onset of the wet season. Yet, the entire island, being small and compact, remains consistent in its climatic experience, with no notable cities experiencing deviations in weather patterns. The month of March witnesses a slight uptick in temperatures, settling between a mild 26°C (78.8°F) during the night and reaching up to 30°C (86°F) in the warmest parts of the day. Weather in March »

April in Saint Barthélemy marks the culmination of the dry season, heralding the imminent arrival of the wetter months. Due to the island's compact geography, the entirety of Saint Barthélemy enjoys uniform weather patterns, eliminating distinctions based on city-specific climatic nuances. Temperature-wise, April continues the warming trend observed in March. Weather in April »

As Saint Barthélemy welcomes May, the island finds itself on the brink of the wet season. Its compact nature ensures that the entire territory experiences consistent weather, devoid of any significant variations based on city locations. In May, the island witnesses temperatures averaging between 27°C (80.6°F) during the cooler nights and peaking around 31°C (87.8°F) in the hotter parts of the day. Weather in May »

June in Saint Barthélemy signifies a deeper immersion into the wet season, with the island's climatic patterns leaning more towards moisture and rain. Regardless of its topography, the island-wide weather consistency ensures that all regions of Saint Barthélemy share these meteorological shifts in tandem. Temperatures in June display a range from 27.5°C (81.5°F) in the early mornings and evenings to a more pronounced warmth of 31.5°C (88.7°F) during the peak daytime hours. Weather in June »

July in Saint Barthélemy marks a continued progression into the wet season, characterized by increased rainfall and humidity. The compact size of the island ensures that from coastline to interior, the entire landscape of Saint Barthélemy witnesses these meteorological shifts uniformly. July's temperatures demonstrate a pattern of warmth consistent with the preceding months, with cooler times like early mornings and nights averaging 28°C (82.4°F), and peak daytime periods reaching up to 32°C (89.6°F). Weather in July »

August in Saint Barthélemy solidifies its presence in the wet season, displaying pronounced tropical characteristics. Despite its variations in landscape, the entirety of Saint Barthélemy, from its pristine beaches to its hilly interiors, experiences these climatic nuances evenly. The temperatures during August remain consistent with the trends of the preceding months. Weather in August »

September in Saint Barthélemy is deep within the wet season, with the month frequently experiencing heightened rainfall and accompanying tropical conditions. From its coastlines to its central areas, Saint Barthélemy uniformly witnesses these weather variations. Temperatures in September showcase a continuation of the warm patterns observed in August. Weather in September »

October in Saint Barthélemy is emblematic of the concluding phase of the wet season, with the month still subject to frequent rainfall but beginning to hint at the transition to drier times ahead. Regardless of its varied landscapes, the entirety of Saint Barthélemy consistently feels these climatic changes. In terms of temperature, October mirrors the warmth experienced in the preceding months. Weather in October »

November in Saint Barthélemy signifies a pivotal shift from the wet to the dry season. With the island’s homogenous climatic distribution, these transitions are palpable across all of Saint Barthélemy, from its sandy shores to its elevated terrains. Regarding temperature, November introduces a subtle cooling trend compared to the previous months. Weather in November »

December in Saint Barthélemy is indicative of the dry season's full embrace. The entire island, regardless of its geographical nuances, uniformly celebrates this shift towards drier and slightly cooler conditions. In terms of temperature, December presents a distinct contrast to the preceding wetter months. Weather in December »