Last updated: April 14, 2025
The climate of the Cayman Islands is characterized by warm temperatures and distinct seasonal variations in precipitation. From a minimum of 20°C (69°F) in January to a maximum of 31°C (88°F) in July, Sister Island showcases a tropical maritime climate that invites year-round visitors. Rainfall patterns vary significantly, with a minimum of only 19 mm (0.8 in) in March in George Town, escalating to 254 mm (10.0 in) in October in West Bay, marking the peak of the rainy season. Humidity levels also fluctuate, averaging a low of 73% in May and peaking at 78% in December in George Town, contributing to the lush landscapes and vibrant ecosystems that define this Caribbean paradise.
The Cayman Islands boast a predominantly Aw climate classification according to the Köppen-Geiger system, characterized by tropical savanna conditions. This means you can expect warm temperatures year-round with distinct wet and dry seasons. Key areas such as Bodden Town, East End, George Town, North Side, Sister Island, and West Bay share this climate, making them ideal for enjoying sunny beaches and lush landscapes throughout the year. The gentle tropical breezes and consistent warmth create a paradise for outdoor activities and relaxation alike.
| Climate Zone | Description |
|---|---|
| Aw | Tropical savanna climate with a dry season occurring in winter. |
The Cayman Islands enjoy a pleasantly warm climate year-round, with monthly temperatures gradually rising from January to August before stabilizing and slightly cooling towards December. In January, temperatures range from a comfortable 20°C (69°F) to a pleasant 28°C (82°F) in Sister Island. As spring unfolds in March, the minimum temperature increases to 23°C (73°F), peaking at 28°C (83°F), showcasing a gradual warming trend. By June, summer is in full swing with minimums reaching 25°C (77°F) and maximums soaring to 30°C (85°F) in Sister Island. The hottest month, July, sees highs of 31°C (88°F), offering sun-seekers the warmth they crave. As autumn approaches, temperatures remain warm but begin to cool slightly, with values hovering around 25°C (77°F) in October and November. By December, the climate wraps up the year with a refreshing dip to a low of 22°C (72°F), showcasing the islands' tropical allure throughout the seasons. Whether you're visiting in the cooler winter months or sizzling summer, the Cayman Islands provide a delightful escape.
In the Cayman Islands, precipitation patterns reveal a striking seasonal variation that significantly impacts the climate. March, for instance, marks the driest month, with rainfall plummeting to a mere 19 mm (0.8 in) and only about 5 days of precipitation recorded in areas like Sister Island. In contrast, October emerges as the peak of the wet season, characterized by a dramatic increase in rainfall, reaching up to 254 mm (10.0 in) in West Bay and as many as 23 days of rainfall on Sister Island. This noticeable shift not only shapes the local environment but also underscores the islands' dynamic climate trends throughout the year.
The humidity levels in the Cayman Islands exhibit a subtle but notable trend throughout the year, with minimum levels around 73% in May and peaking at 78% in December in George Town. This gradual increase in humidity towards the end of the year suggests a shift in weather patterns, likely influenced by seasonal changes. As the wet season approaches, visitors can expect a more tropical feel, making it essential to prepare for the humidity that characterizes these beautiful islands.
In April, both Sister Island and George Town experience a strikingly high average daily maximum UV Index of 13, indicating a consistent trend of intense sun exposure across the Cayman Islands during this month. This uniformity suggests that residents and visitors alike should take proactive measures to protect themselves from harmful UV radiation, as the elevated levels signal the need for diligent sun safety practices. As the climate warms, this trend may prompt an increased focus on awareness and education regarding sun protection, ensuring the health and well-being of all who enjoy these beautiful islands.
UV Risk Categories
The Cayman Islands bask in abundant sunshine year-round, with notable variations between locations and seasons. In January, George Town enjoys approximately 246 hours of sunshine, while the Sister Island shines even brighter with 248 hours, setting the stage for a warm winter escape. As summer arrives, sunshine peaks dramatically; West Bay experiences a remarkable 348 hours in July, while the Sister Island leads the way with an impressive 352 hours. This trend highlights the islands' commitment to sun-soaked adventures, making them a perfect destination for those seeking both relaxation and vibrant summer activities.
The Cayman Islands experience notable variations in sunny weather throughout the year. For instance, the likelihood of clear skies in East End reaches only 35% in November, indicating a relatively higher chance of cloud cover during this month. In stark contrast, Sister Island basks in sunshine, boasting an impressive 81% probability of sunny days in February. This trend highlights the islands' seasonal shifts, where the early months of the year typically offer the most reliable sun-filled experiences, making it an ideal time for travelers seeking warm, bright days amidst stunning tropical landscapes.
In the Cayman Islands, daylight hours exhibit a notable seasonal rhythm that enhances the island's allure. In December, the days are shorter, with only 10 hours of sunlight on Sister Island, creating a cozy atmosphere perfect for those looking to escape the winter chill. As the year progresses into June, daylight extends significantly to 13 hours on Sister Island, inviting sun-seekers and adventurers to indulge in the vibrant outdoor activities that the islands have to offer. This shift not only showcases the islands' tropical charm but also highlights how varying daylight can influence the rhythm of life and leisure in this stunning Caribbean paradise.
Bodden Town, nestled in the serene Cayman Islands, enjoys a tropical climate characterized by warm temperatures year-round. From January to April, visitors can expect pleasant averages of around 26°C (79°F), with the mercury rising to 30°C (86°F) in the summer months of July and August. Rainfall is most abundant in October, with nearly 250 mm (9.8 in), while humidity hovers around 75%, offering a soothing tropical experience. With such a delightful climate, Bodden Town is a perfect retreat for those seeking sun and warmth. Discover more about the yearly patterns in Bodden Town climate.
The East End of the Cayman Islands basks in a tropical climate that offers warm temperatures year-round, with averages hovering around 26°C (79°F). From January through March, delightful conditions with minimal rainfall create an ideal setting for outdoor adventures, while the summer months see temperatures rise to about 30°C (87°F). Humidity remains fairly consistent, ranging from 73% to 78%, enhancing the island vibe but also hinting at the rainy season, particularly from May through October. Precipitation peaks in October, reminding visitors that even paradise has its showers. For a detailed look at the local weather patterns, check out the East End climate.
George Town, Cayman Islands, enjoys a tropical climate characterized by warm temperatures year-round. Average highs hover around 26°C (79°F) in the cooler months of January through April, gradually rising to a peak of 30°C (86°F) during the summer. While the skies are generally sunny, June through October sees increased rainfall, with October being particularly wet, receiving about 249 mm (9.8 in). Despite this, the humidity remains relatively steady at around 75%, adding to the island's lush, vibrant atmosphere. For a deeper dive into the weather patterns, check out the detailed George Town climate.
Nestled in the Caribbean, North Side, Cayman Islands boasts a tropical climate characterized by consistently warm temperatures year-round. From January to April, temperatures generally hover between 21°C to 28°C (70°F to 82°F), while the summer months of June through August bring peak averages of 29°C to 30°C (84°F to 86°F), making it ideal for sun-seekers. However, be prepared for a seasonal shift in rainfall, particularly in October, when it receives the highest precipitation of 249 mm (9.8 in). The humidity remains relatively high, averaging around 75%, creating a lush environment that thrives with vibrant flora and fauna. Discover more about this stunning locale at North Side climate.
The climate in Sister Island, Cayman Islands is a delightful blend of warmth and seasonal shifts, making it an idyllic destination year-round. With January temperatures averaging a pleasant 26°C (78°F) and peaking at 28°C (82°F), the island transitions into the warmer months, reaching 31°C (88°F) by July. While rain does visit in the form of summer showers, especially in October with a whopping 229 mm (9.0 in), the overall humidity remains manageable at around 75%. Whether you're basking in the sun or enjoying a refreshing rain, Sister Island offers a tropical paradise that is perfect for any traveler. Discover more about the enchanting weather patterns at Sister Island climate.
West Bay, Cayman Islands offers a tropical climate that delights year-round. With average temperatures ranging from a pleasant 26°C (78°F) in January to a warm 29°C (84°F) in August, this paradise provides the perfect escape for sun-seekers. While the dry season stretches from late fall to early spring, expect some rainfall in May and October, where monthly totals can reach up to 254 mm (10.0 in). Humidity stays relatively high, averaging around 75%, contributing to the lush, vibrant surroundings. Explore more about the region's unique climate at West Bay climate.
The climate of the Cayman Islands showcases a delightful tropical pattern that entices visitors year-round. Between the cooler minimum temperature of 20°C (69°F) in January and the warmer maximum of 31°C (88°F) in July, there's a pleasant variation that enhances outdoor experiences. While the islands see minimal rainfall in March, with just 19 mm (0.8 in) recorded in George Town, October brings a significant shift, as precipitation peaks at 254 mm (10.0 in) in West Bay. The humidity levels, typically ranging from an average minimum of 73% in May to a maximum of 78% in December within George Town, contribute to the lush landscapes and vibrant ecosystems that this paradise is known for. Overall, the seasonal transitions in temperature and precipitation highlight the islands' rich climate, catering to diverse preferences and activities throughout the year.