Climate and monthly weather forecastTreasure Cay, The Bahamas
Climate and monthly weather forecast
The climate of Treasure Cay
Treasure Cay, situated in The Bahamas, closely adheres to the Am category of Köppen climate classification, otherwise known as Tropical Monsoon. This climate is characterized by warmth and ample rainfall, with temperature rarely falling below 23°C (73.4°F), and reaching highs of up to 31°C (87.8°F) during peak summer months. A consistent increase in temperature is noticeable from the beginning of the year, starting at 23°C (73.4°F) in January and reaching the year's pinnacle of 31°C (87.8°F) in July and August.Rainfall exhibits a higher degree of variability, with monthly averages fluctuating between 67mm (2.64") in January and December, and 195mm (7.68") in September. Treasure Cay experiences a more intense rainy season from May to September, characterized by frequent rainfalls and a total average rainfall of 809mm (31.85"). Conversely, the driest months span from January to April, when monthly averages stoop as low as 67mm (2.64").
The effect of this climate pattern on daylight hours and sunshine is also notable. The most sunshine-filled months are from April to August, when daylight hours fluctuate between 12.8 and 13.8, with average sunshine hours hovering around 9. These months coincide with the highest UV indices, which peak at 11.
The best time to visit Treasure Cay
Ideally, plan a visit to Treasure Cay between November and April. Temperature during these months is comfortably warm, fluctuating between a pleasant daily low of 15°C (59°F) in January and February to a welcoming high 26°C (78.8°F) in April. Rainfall is modest, with monthly averages ranging from 67mm (2.64") to 76mm (2.99"), offering an agreeable balance of weather conditions for outdoor activities and beach relaxation. It is noteworthy that the sea temperature remains agreeable for swimming throughout this period, maintaining a steady average of 25°C (77°F) to 27°C (80.6°F), further enhancing the potential of Treasure Cay as a remarkable getaway.The worst time to visit Treasure Cay
A period of time that might challenge even the most hardened rain-aficionado stretches from May to September in Treasure Cay. This period sees the heaviest rainfall exceeding 137mm (5.39") monthly during the tropical monsoon, along with the highest temperatures reaching up to 31°C (87.8°F) in July and August. Coupled with the high UV index, which consistently stays at 11 during these months, outdoor activities might prove less enjoyable.Spring weather in Treasure Cay
Spring, running from March to May, sees Treasure Cay transitioning from a mild to a rainy climate. Temperature begins to exhibit a light uptick, moving from 25°C (77°F) in March to 28°C (82.4°F) by May. Rainfall also sets on an upward trajectory, increasing from 72mm (2.83") in March and reaching 140mm (5.51") in May. Daylight hours slightly increase from 12 to 13.5, with sunshine hours maintaining an average of 9, signifying the onset of warmer, brighter days.Summer weather in Treasure Cay
Summer months, from June to August, see Treasure Cay at its warmest and wettest. Temperature peaks at a high of 31°C (87.8°F) in July and August, offering plenty of warm weather. Rainfall is exceedingly high during this period, with a substantial increase from 191mm (7.52") in June to a significant 146mm (5.75") in August. During this period, sunshine hours remain at 9, despite the increase in daylight hours to 13.8 in June.Autumn weather in Treasure Cay
In Autumn, which spans from September through November, the climate experiences slight relief from the summer’s high temperatures, with average monthly temperatures decreasing marginally to 28°C (82.4°F) in September and 26°C (78.8°F) in November. Rainfall remains rather high in September with 195mm (7.68"), but sees a steady decrease to 76mm (2.99") by November. Daylight hours observe a gradual decrease from 12.3 in September to 10.8 in November.Winter weather in Treasure Cay
Winter, from December to February, sees the temperature range in Treasure Cay narrow down considerably, as daily averages maintain an agreeable 15°C (59°F) to 23°C (73.4°F). Rainfall decreases to a year-long low, with monthly averages swinging between 67mm (2.64") and 74mm (2.91"). Daylight hours also decrease during this period, bottoming at 10.5 in December, before steadily growing once more. Despite the reduced sunshine hours, which averages at 7, the overall weather condition during these months makes it a comfortable time for activities.Weather in January
January in Treasure Cay, The Bahamas, is characterized by moderate temperatures and noticeable rainfall. The average daytime temperature rises to a relatively comfortable 23°C (73.4°F). It can be mentioned that this month is not the coldest, but it houses more cool days than balmy afternoons. Weather in January »Weather in February
February in Treasure Cay continues the trend from January with no substantial changes in weather parameters. Record shows 74mm (2.91") rainfall, a minor escalation from its antecedent month, suggesting a continuation of scattered shower days. Weather in February »Weather in March
Come March, more sunshine hours invite tourists to lounge on Treasure Cay's pristine beaches. Engaging in all outdoor activities becomes more desirable, with daily temperature resting at a warm 25°C (77°F). The general climate remains comfortably warm- a prelude to the onset of summertime. Weather in March »Weather in April
April signals the start of a season transition, with the days becoming warmer. Capture the enchanting dawns earlier as daylight lasts for about 12.8 hours here. Despite the increased temperature, the region does not witness a significant surge in the rainfall. Weather in April »Weather in May
May is the onset of summer in Treasure Cay. The thermometer readings now reach an average daytime high of 28°C (82.4°F). The rainfall begins to double from the previous month, indicating the arrival of early summer showers. It's a time when Treasure Cay embraces both the Sun's ardent rays and cooling showers. Weather in May »Weather in June
June is marked by torrential rainfall in Treasure Cay, making it the wettest month of the year. A considerable 191mm (7.52") rainfall is recorded, hinting at frequent showers. Despite being the rainiest month, it does not observe the highest number of rainy days, an irony of the Bahamian clime. Weather in June »Weather in July
July in Treasure Cay sustains the hot, tropical climate introduced in June. The daily average temperature reaches a warm 31°C (87.8°F), a characteristic of the Bahamas' sweltering summer. This month welcomes more rainy days, casting a unique mesh of sunlight and rain. Weather in July »Weather in August
As the peak summer month in Treasure Cay, August retains a high temperature like July. The weather records show an average rainfall of 146mm (5.75"), persisting the pattern of heavy showers. Despite the high temperatures, August allows dwellers to embrace tropical summers with brief afternoon showers. Weather in August »Weather in September
September in Treasure Cay introduces a subtle decline in temperature, accompanied by a higher amount of rainfall. The area sees about 195mm (7.68") of precipitation, marking it as the second-highest rainfall month after June. Weather in September »Weather in October
October experiences a slight decrease in temperature, a nod towards the upcoming cooler months ahead. Visitors can still enjoy the warmth as the average high temperature remains a pleasant 28°C (82.4°F). The damp saga from the previous month continues but with a perceivable reduction in rainfall. Weather in October »Weather in November
November witnesses more considerable shifts in climate in Treasure Cay. The temperature begins to retreat, with average highs returning to a mild 26°C (78.8°F). The fall in precipitation is evident, marking the transition period between rainy summer and drier winter. Weather in November »Weather in December
December in Treasure Cay brings cooler, drier conditions. With an average low of 16°C (60.8°F), the month is a subtle teaser of the light, cool breeze to come. The precipitation reduces further, indicative of the incoming dry season. Weather in December »Updated: Jan 30, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Treasure Cay's lowest temperatures tend to occur in January and February, with an average high-temperature of 23°C (73.4°F).
January and December are months with the least rain in Treasure Cay, The Bahamas, when the rain falls for 12 days and typically aggregates up to 67mm (2.64") of rain.
In Treasure Cay, during the entire year, the rain falls for 175 days and collects up to 1419mm (55.87") of precipitation.
January, February, September through December, with an average of 7h of sunshine, are months with the least sunshine in Treasure Cay, The Bahamas.
January and December, with an average maximum UV index of 5, are months with the lowest UV index.
The months with the coldest seawater are February and March, with an average sea temperature of 24°C (75.2°F).
On Sunday, 10. March 2024, at 02:00, Daylight Saving Time starts in Treasure Cay, The Bahamas, 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.
April, May, July and August, with an average of 9h of sunshine, are months with the most sunshine.
The months with the highest UV index are May through August, with an average maximum UV index of 11.
June has the longest days of the year in Treasure Cay, with an average of 13h and 48min of daylight.
July and August are identified as the warmest months in Treasure Cay, The Bahamas, with an average high-temperature of 31°C (87.8°F).
July through September, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater.
The month with the most rainfall in Treasure Cay is September, when the rain falls for 21 days and typically aggregates up to 195mm (7.68") of precipitation.
With an average of 10h and 30min of daylight, December has the shortest days of the year.
Average temperature
Treasure Cay, The Bahamas
The warmest months (with the highest average high temperature) are July and August (31°C).
The months with the lowest average high temperature are January and February (23°C).
The months with the highest average low temperature are July, August and September (24°C).
The coldest months (with the lowest average low temperature) are January and February (15°C).
Average rainfall
Treasure Cay, The Bahamas
- Average rainfall in January:
67mm - Average rainfall in February:
74mm - Average rainfall in March:
72mm - Average rainfall in April:
75mm - Average rainfall in May:
140mm - Average rainfall in June:
191mm
The wettest month (with the highest rainfall) is September (195mm).
The driest months (with the least rainfall) are January and December (67mm).
Average rainfall days
Treasure Cay, The Bahamas
- Average rainfall days in January:
12 days - Average rainfall days in February:
10 days - Average rainfall days in March:
10 days - Average rainfall days in April:
7 days - Average rainfall days in May:
13 days - Average rainfall days in June:
18 days
- Average rainfall days in July:
20 days - Average rainfall days in August:
21 days - Average rainfall days in September:
21 days - Average rainfall days in October:
19 days - Average rainfall days in November:
12 days - Average rainfall days in December:
12 days
The months with the highest number of rainy days are August and September (21 days).
The month with the least rainy days is April (7 days).
Average sea temperature
Treasure Cay, The Bahamas
The best months for swimming (with the highest average sea temperature) are July, August and September (29°C).
The coldest months (with the lowest average sea temperature) are February and March (24°C).
Average daylight / Average sunshine
Treasure Cay, The Bahamas
- Average daylight in January:
10h and 42min - Average daylight in February:
11h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 48min - Average daylight in May:
13h and 30min - Average daylight in June:
13h and 48min
- Average daylight in July:
13h and 36min - Average daylight in August:
13h and 6min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 30min - Average daylight in November:
10h and 48min - Average daylight in December:
10h and 30min
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 April, May, July and August (Average sunshine: 9h).
The months with the least sunshine are January, February, September, October, November and December (Average sunshine: 7h).
Average UV index
Treasure Cay, The Bahamas
The months with the highest UV index are May, June, July and August (UV index 11).
The months with the lowest UV index are January and December (UV index 5).
