Climate and monthly weather forecast
Green Turtle Cay, The Bahamas

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The climate of Green Turtle Cay

Green Turtle Cay, The Bahamas sits under the Köppen climate classification Am, known as a tropical monsoon climate, directly correlating to copious rainfall, high relative humidity, and consistently warm temperatures.

The climate stays fairly consistent throughout the year, maintaining high temperatures that oscillate slightly with the peak of the calendar. The highest recorded mean monthly temperature is 29.3C in August, with the lowest, 22.5C, found in January. The trend of the temperatures indicates a gradual increase as the year progresses, starting from the low in January and steadily climbing towards August, before it begins to dip slightly heading into the winter months.

Rainfall levels vary considerably, with the highest figures registered in the summer months, specifically between June to September. From June to September, rainfall levels range from 110mm (4.33") to 200mm (7.87"), a sharp increase from the levels recorded in the preceding months. On an annual basis, the rainy days peak in July with up to 25.4 days per month.

Green Turtle Cay's relative humidity hovers between 72% to 77%, with levels increasing gradually as the year progresses. Meanwhile, the areas breeze presents a variable infusion of reprieve from the usually warm and wet conditions, with an average wind speed ranging from 16.6km/h (10.3mph) to 23.2km/h (14.4mph) without any significant pattern of variability throughout the year.

The best time to visit Green Turtle Cay

Considering the weather parameters described previously, a visitor seeking to escape the rain would benefit most from scheduling a trip between January and April. During these months, the precipitation is relatively tame, providing an average rainfall between 38mm (1.5") to 57mm (2.24") per month, coupled with sunny days amounting to between six and ten hours of sunshine daily. The temperatures during this period also provide a warm ambiance perfect for the ideal tropical getaway, with average highs ranging between 22.5C to 24.8C.

The worst time to visit Green Turtle Cay

Nonetheless, Green Turtle Cay's monsoon season, occurring between June and September, might prove less alluring to visitors. During this period, the amount of rainfall dramatically increases, peaking at 200mm (7.87") in September, with up to 26.4 days of precipitation in August. However, this period is also characterized by the highest temperatures, going as high as 29C.

Spring weather in Green Turtle Cay

Spring months in Green Turtle Cay, The Bahamas, from March through May, experience warmer temperatures and higher rainfall compared to winter months. Average high temperatures vary from 23.1C to 26.3C while rainfall ranges from 38mm (1.5") in March to 121mm (4.76") by May. The wind speeds tend to decrease from March's 22.9km/h (14.2mph) to a calmer 20.4km/h (12.7mph) by the end of May, while relative humidity remains relatively uniform, averaging 74%.

Summer weather in Green Turtle Cay

Summers in Green Turtle Cay, from June through August, are characterized by hot weather and elevated rainfall levels. This period experiences the island's highest temperatures, averaging from 28.1C to 29.3C, alongside the heaviest rainfall from 110mm (4.33") to 196mm (7.72"). Despite these conditions, the island still experiences significant sunlight, with the hours of sunshine per day ranging from 10.2 hours to 10.7 hours.

Autumn weather in Green Turtle Cay

The season of autumn, extending from September to November, maintains the summer’s hot, humid conditions, although temperatures start to gradually decrease. Average highs range from 28.7C to 25.4C, while the amount of rainfall is most significant in September at 200mm (7.87"), after which it starts declining. Wind speeds reactivate during this period, upscaling from 17.5km/h (10.9mph) to 22km/h (13.7mph).

Winter weather in Green Turtle Cay

Winter in Green Turtle Cay, from December through February, presents mild temperatures, little rainfall, and steady wind speeds. Average temperatures oscillate from 22.5C to 22.8C, while rainfall amounts are recorded between 44mm (1.73") to 46mm (1.81"). Relative humidity stands at approximately 74%, and prevailing winds provide a brisk, refreshing breeze from 22.3km/h (13.9mph) to 23.2km/h (14.4mph), contributing to the mostly tranquil setting.

Weather in January

Green Turtle Cay, The Bahamas, offers a mild climate as the year kicks off with relatively warm temperatures and moderate humidity. The windy conditions often seen this month provide refreshing relief from the high moisture. An average high temperature reaching 22.5°C (72.5°F) and low at 20.4°C (68.7°F) suggests a pleasant trend for locals and visitors alike. Weather in January »

Weather in February

Transiting into February, the weather in Green Turtle Cay maintains its pleasant streak, albeit with a slight rise in temperatures. The sea air, often abuzz with a wind speed of 22.9km/h (14.2mph), adds a refreshing touch to the balmy afternoons. Weather in February »

Weather in March

March sees a smooth escalation of the average high temperature as in the previous months, but without causing significant discomfort. A familiar combination of breezy afternoons and moderate humidity, along with an average wind speed of 22.9km/h (14.2mph), keep the weather pleasantly acceptable for the residents and visitors in Green Turtle Cay. Weather in March »

Weather in April

While the transition from March to April brings forth a notable escalation in temperatures, the weather is far from being scorching. Green Turtle Cay experiences an increased daylight duration this month, allowing more time for activities under the sun. Weather in April »

Weather in May

Although the higher temperatures of May are a departure from the usual moderate tropical climate of Green Turtle Cay, they hardly become unbearable. A considerable rainfall of 121mm (4.76") which is received, enhances the charm of the season. Weather in May »

Weather in June

June ushers in the official start of summer, with the thermometer often hitting more significant numbers. Notable is the wind speed dropping to an annual low of 16.6km/h (10.3mph), contributing to a sweltering ambience. Despite the heady combination of heat, moisture, and decreased wind speed, June sets stage to enjoy predominantly tropical characteristics of Green Turtle Cay. Weather in June »

Weather in July

Reaching the pinnacle of summer in July, Green Turtle Cay experiences its warmest period. With an average high temperature of 29°C (84.2°F), the month certainly leaves no doubt about the summer peak. The longer daylight hours accentuate the flavor of warmth and provide ample time for recreational pursuits. Weather in July »

Weather in August

August, while maintaining July's high temperature trend, presents the highest average low temperature of 28.2°C (82.8°F). With increased rainfall at 196mm (7.72"), it marks the year's wettest period. The weather impacts daily routines and occasionally brings them to a temporary halt. Weather in August »

Weather in September

September hosts a slight receding of temperatures. Despite this relief, the trend of heightened rainfall and higher low temperatures persist, marking a close to the wet cycle of the year. The wind speed sees a minor resurgence, contributing to increased comfort. Weather in September »

Weather in October

As October makes an approach, Green Turtle Cay starts experiencing a discernible change in climate. With a rainfall amount half that of September's and average wind speed resurging to 22km/h (13.7mph), a comfortable outdoor ambiance returns to the city. Weather in October »

Weather in November

November further witnesses a drop in temperature and significant reduction in rainfall compared to October. Average wind speed reaching 22.7km/h (14.1mph) underlines the changeable nature of this period. Daylight hours, although reduced, still offer ample time to engage with the environment. Weather in November »

Weather in December

The year concludes with December bringing in the lowest average temperatures of the year, although they continue to be mildly warm given the tropical setting. The wind speed in Green Turtle Cay holds steady at 22.3km/h (13.9mph), maintaining a constant refreshing ambience. Weather in December »
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Frequently asked questions

What are the coldest months in Green Turtle Cay?

In Green Turtle Cay, January is known for its average lowest temperatures, reaching a high of 22.5°C (72.5°F) and a low of 20.4°C (68.7°F).

What are the least humid months in Green Turtle Cay?

January and March, with an average relative humidity of 72%, are the least humid months.

How much does it rain in Green Turtle Cay?

Throughout the year, there are 218.9 rainfall days, and 1160mm (45.67") of precipitation is accumulated.

What is the month with the least sunshine in Green Turtle Cay?

The month with the least sunshine in Green Turtle Cay is January, with an average of 6h of sunshine.

When is the lowest UV index in Green Turtle Cay?

January is the month with the lowest UV index, with an average maximum UV index of 5.

What is the driest month in Green Turtle Cay?

March is the month with the least rainfall in Green Turtle Cay. Rain falls for 12.9 days and accumulates 38mm (1.5") of precipitation.

When is Daylight Saving Time (DST) in Green Turtle Cay?

On Sunday, 10. March 2024, at 02:00, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends on Sunday, 03. November 2024, at 02:00, and the time zone reverts from EDT to EST.

What is the month with the highest UV index in Green Turtle Cay?

The months with the highest UV index in Green Turtle Cay are May through October, with an average maximum UV index of 7.

What is the most humid month in Green Turtle Cay?

The most humid month is June, with an average relative humidity of 77%.

When are the longest days in Green Turtle Cay?

June has the longest days of the year in Green Turtle Cay, with an average of 13h and 48min of daylight.

What are the months with the most sunshine in Green Turtle Cay?

July and August, with an average of 10.7h of sunshine, are months with the most sunshine in Green Turtle Cay.

What month is the hottest in Green Turtle Cay?

With an average high-temperature of 29.3°C (84.7°F) and an average low-temperature of 28.2°C (82.8°F), August is the warmest month in Green Turtle Cay, The Bahamas.

What is the wettest month in Green Turtle Cay?

The month with the most rainfall in Green Turtle Cay is September, when the rain falls for 25 days and typically aggregates up to 200mm (7.87") of precipitation.

What is the month with the shortest days in Green Turtle Cay?

With an average of 10h and 30min of daylight, December has the shortest days of the year in Green Turtle Cay, The Bahamas.

Average temperature
Green Turtle Cay, The Bahamas

Average temperature - Green Turtle Cay, The Bahamas

The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (22.5°C).

The month with the highest average low temperature is August (28.2°C).
The coldest month (with the lowest average low temperature) is January (20.4°C).

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Average pressure
Green Turtle Cay, The Bahamas

Average pressure - Green Turtle Cay, The Bahamas

The month with the highest atmospheric pressure is January (1019.7mbar).
The months with the lowest atmospheric pressure are September and October (1014.5mbar).

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Average wind speed
Green Turtle Cay, The Bahamas

Average wind speed - Green Turtle Cay, The Bahamas

The windiest month (with the highest average wind speed) is January (23.2km/h).
The calmest month (with the lowest average wind speed) is June (16.6km/h).

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Average humidity
Green Turtle Cay, The Bahamas

Average humidity - Green Turtle Cay, The Bahamas

The month with the highest relative humidity is June (77%).
The months with the lowest relative humidity are January and March (72%).

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Average rainfall
Green Turtle Cay, The Bahamas

Average rainfall - Green Turtle Cay, The Bahamas

The wettest month (with the highest rainfall) is September (200mm).
The driest month (with the least rainfall) is March (38mm).

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Average rainfall days
Green Turtle Cay, The Bahamas

Average rainfall days - Green Turtle Cay, The Bahamas

The month with the highest number of rainy days is August (26.4 days).
The month with the least rainy days is February (10.9 days).

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Average daylight / Average sunshine
Green Turtle Cay, The Bahamas

Average daylight / Average sunshine - Green Turtle Cay, The Bahamas

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).

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Average sunshine days
Green Turtle Cay, The Bahamas

Average sunshine days - Green Turtle Cay, The Bahamas

The month with the most sunshine days is March (14.7 days).
The month with the least sunshine days is August (3.3 days).

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Average UV index
Green Turtle Cay, The Bahamas

Average UV index - Green Turtle Cay, The Bahamas

The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).

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Average cloud cover
Green Turtle Cay, The Bahamas

Average cloud cover - Green Turtle Cay, The Bahamas

The months with the most cloud cover are January, November and December (Cloud cover 37).
The month with the least cloud cover is April (Cloud cover 30).

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Average visibility
Green Turtle Cay, The Bahamas

Average visibility - Green Turtle Cay, The Bahamas

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (10km).
The month with the lowest visibility is August (9km).

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Green Turtle Cay, The Bahamas

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