Climate and monthly weather forecast
United States Virgin Islands, USA

The United States Virgin Islands have a tropical wet and dry climate (Köppen climate classification Aw), with warm to hot temperatures throughout the year. The islands are an unincorporated territory of the United States and constitute a major part of the Virgin Islands archipelago in the Caribbean. Puerto Rico lies 40 miles west of the islands, while Florida is approximately 1100 miles to the northwest. The location in the tropics, proximity to the North Atlantic Ocean, engulfment by large water bodies, and easterly winds mainly influence the climate.

The United States Virgin Islands lie 18°N of the equator near the boundary of the North Atlantic Ocean and the Caribbean Sea. Saint Thomas, Saint John, and Saint Croix are the three biggest islands in the archipelago, which consists of many smaller islands and cays. Much of the landscape is hilly, and the islands are of volcanic origin. Charlotte Amalie, the capital in Saint Thomas, is a natural, deepwater harbor. The topography is rugged and mountainous, with rare patches of leveled land. Crown Mountain on Saint Thomas has the highest point at 474 meters in the United States Virgin Islands. The coastline of 117 miles, along with pristine white, sandy beaches, and coral reefs, makes the islands a desirable tourist destination.

The best time to visit the United States Virgin Islands is from December to April. The dry season sees a significant drop in rainfall, and the conditions are calm in the absence of storms. The heat quotient is at the lowest of the year, mainly due to the low humidity than the little dip in temperatures. Light to moderate-speed winds keep the conditions pleasant, and the bright sunshine gives plenty of time to spend outdoors. Seawaters are calm in the Caribbean after the hurricane season, which makes it the best time to swim, sail, and cruise in the mild waters.

The worst time to visit the United States Virgin Islands is from August to October in the wet season. The highest temperatures of the year, along with a rise in humidity, make the conditions oppressive. Additionally, the hurricane season adds to the uncertainty of the weather, with a high probability of storms. Thunderstorms are frequent in the afternoons, with lightning and heavy rain. The usually calm ocean waters are turbulent, and it is prudent to stay away from the sea during the periods of storms.

Spring in the United States Virgin Islands, spanning from March to May, greets visitors with gradually increasing temperatures. Starting from the lower 70s°F in March, the thermometer moves towards the mid-80s°F by May. Rainfall is moderate during this time, making it a transitional phase from the dry to the wet season. The sea temperature remains inviting, fluctuating from 79°F (26.1°C) to 81°F (27.2°C). Consistent easterly trade winds provide relief from the increasing heat.

June to August in the United States Virgin Islands is characterized by warm, humid conditions. The temperature hovers from 85°F (29.4°C) to 90°F (32.2°C) during these months. Rainfall becomes more frequent, signaling the onset of the wet season. Ocean temperatures are balmy, resting around 82°F (27.8°C) to 83°F (28.3°C). However, caution is necessary as the region enters hurricane season, with potential tropical storms and unsettled weather.

The months of September to November in the United States Virgin Islands are the wettest. Temperatures remain warm, ranging from 82°F (27.8°C) to 87°F (30.6°C). The islands experience their highest rainfall during these months, with occasional thunderstorms in the afternoons. Sea temperatures stay warm, averaging 81°F (27.2°C) to 83°F (28.3°C). Being the peak of the hurricane season, visitors should stay updated on weather forecasts.

Winter, from December to February, brings drier and slightly cooler conditions to the United States Virgin Islands. The temperature varies from 72°F (22.2°C) to 78°F (25.6°C), providing a reprieve from the intense heat of the preceding months. Rainfall is significantly reduced, and the skies tend to be clearer. The ocean temperature remains steady, around 79°F (26.1°C) to 81°F (27.2°C), making it conducive for water activities. Gentle winds continue to grace the islands, ensuring the climate remains pleasant.

January in the United States Virgin Islands marks the midst of the dry season and is one of the cooler months. The islands experience temperatures that fluctuate between a low of 72°F (22.2°C) and highs around 78°F (25.6°C). When compared to December, January offers slightly cooler temperatures, especially during the evenings and early mornings. Weather in January »

February in the United States Virgin Islands witnesses a continuation of the dry season, maintaining its reputation as one of the favorable months for travel. The islands experience temperatures that hover between a comfortable 73°F (22.8°C) during the cooler hours and can rise up to 80°F (26.7°C) during the daytime. When compared to January, February sees a slight uptick in temperatures, gradually transitioning towards the warmer months ahead. Weather in February »

March signifies the tail end of the dry season in the United States Virgin Islands, setting the stage for the warmer months that are on the horizon. The islands during this month see temperatures ranging from a mild 74°F (23.3°C) during the cooler nighttime to a warmer 82°F (27.8°C) at the height of the day. As March progresses, one can note a clear distinction from the slightly cooler February. Weather in March »

April ushers in a transitional phase in the United States Virgin Islands, marking the onset of the wet season. The islands during April experience temperatures that start from a pleasant 75°F (23.9°C) during the cooler nighttime and can reach up to 84°F (28.9°C) as the sun dominates the day. April stands distinct from March, showing evident signs of change in the climatic behavior. Weather in April »

May in the United States Virgin Islands is characterized by a deepening of the wet season, with the islands preparing for the more intensified rain patterns ahead. The temperatures in May maintain a range from a comfortable 76°F (24.4°C) during the nighttime hours to a balmy 86°F (30°C) during the day. Compared to April, May brings with it a tangible escalation in both temperature and humidity levels. Weather in May »

June in the United States Virgin Islands is decisively set within the wet season, and it also marks the beginning of the hurricane season. During this month, temperatures find themselves nestled between a warm 78°F (25.6°C) at night and can escalate to a sultry 88°F (31.1°C) in the daytime. In juxtaposition with May, June experiences an even greater surge in humidity and overall warmth. Weather in June »

July in the United States Virgin Islands is firmly entrenched within the wet season and continues to be a part of the hurricane season. The month's temperatures fluctuate from a balmy 79°F (26.1°C) during the more temperate nights to a peak heat of 90°F (32.2°C) during daytime, making it one of the hottest months of the year. When contrasted with June, July not only exhibits heightened temperatures but also manifests a more palpable air of humidity. Weather in July »

August in the United States Virgin Islands persists within the wet season's grip and remains an active participant of the hurricane season. Temperatures during this month span from a consistent warmth of 80°F (26.7°C) at night to the intense zenith of 91°F (32.8°C) during the day, often reaching the year's maximums. Comparatively, August frequently surpasses July in terms of both temperature and atmospheric moisture, making it one of the most humid and hottest months in the archipelago. Weather in August »

September in the United States Virgin Islands is characterized by its place within the climax of the wet season, while also standing at the apex of the hurricane season. Temperatures during this month maintain a range from a tropical 79°F (26.1°C) during the cooler nights to a torrid peak of 90°F (32.2°C) as the day progresses. In relation to August, September sustains the heat and oppressive humidity that have become synonymous with this period. Weather in September »

October in the United States Virgin Islands continues to be marked by the wet season's persistence and remains deeply entwined with the hurricane season. The month's temperatures navigate between a mild 78°F (25.6°C) during nighttime to a fervent climax of 88°F (31.1°C) during daylight hours. As a successor to September, October witnesses a slight, albeit noticeable, reduction in both temperature and humidity. Weather in October »

November ushers in the concluding phase of the wet season for the United States Virgin Islands while simultaneously marking the tail end of the hurricane season. During this month, temperatures oscillate from a comfortable 76°F (24.4°C) in the early hours to a still-warm 86°F (30°C) as the sun dominates the sky. Transitioning from October, November exhibits a gradual decline in temperature and moisture levels. Weather in November »

December heralds the beginning of the dry season for the United States Virgin Islands, offering a welcomed reprieve from the preceding wet months. Temperatures during this month meander from a cooler 75°F (23.9°C) during the nighttime to a pleasantly warm 84°F (28.9°C) under the midday sun. Compared to November, December consistently exhibits drier conditions, a reduction in atmospheric humidity, and a diminished propensity for rain. Weather in December »