Climate and monthly weather forecast
Cayo Largo del Sur, Cuba

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The climate of Cayo Largo del Sur

Cayo Largo del Sur is known for its Tropical Savanna type of climate under the Köppen climate classification. It's geographically positioned in Cuba, where the environment is predominantly warm, with temperatures ranging from 16°C (60.8°F) to 32°C (89.6°F). The island experiences an average of 11 hours of daylight, increasing to a peak of 13.4 hours during the mid-year months.

Average annual rainfall is diverse, with variations from a minimum of 20mm (0.79") in December to a maximum of 199mm (7.83") in September. Notably, the highest precipitation occurs from May to September. This period is characterized by substantially higher volume of rainfall, with average figures exceeding 125mm (4.92") monthly. Contrastingly, the drier months, from December to April, have a significantly lower volume of rainfall, typically below 46mm (1.81").

Uniquely, Cayo Largo del Sur experiences a constant span of sunshine hours throughout the year, averaging around 8 hours daily — a factor that contributes to its charm as a popular tourist destination. UV index varies with the progression of the year, elevating from a low of 7 in the early and later months, to a high of 12 between May and August, necessitating additional protective measures during these months due to increased sun intensity.

Sea temperature ranges between 26°C (78.8°F) and 30°C (86°F) across the year, offering an enjoyable swimming condition regardless of the time of the visit.

The best time to visit Cayo Largo del Sur

Recorded climate figures favor November to April as the optimal period to visit Cayo Largo del Sur. During these months, weather conditions are most hospitable, with moderate warmth, ranging between 16°C (60.8°F) and 31°C (87.8°F). The island also witnesses its lowest rainfalls during this period, especially in December where rain volumes can go as low as 20mm (0.79"). Furthermore, these months have a lower UV index of 7 to 9, providing comfortable climate conditions for outdoor activities.

The worst time to visit Cayo Largo del Sur

The months of May to October can be less favorable for a visit to Cayo Largo del Sur, primarily due to weather extremities. These months experience higher temperature ranges from 21°C (69.8°F) to 32°C (89.6°F) coupled with peak rainfall, especially in June to September, recording figures above 125mm (4.92"). The UV index rises to its peak of 12 during this period, necessitating extra precautions from visitors.

Spring weather in Cayo Largo del Sur

Spring spans from March to May in Cayo Largo del Sur, characterized by gradually rising temperatures from 18°C (64.4°F) to 22°C (71.6°F), and from 29°C (84.2°F) to 32°C (89.6°F). Noticeably, March experiences moderate rainfall at 46mm (1.81") which escalates to 143mm (5.63") in May. Correspondingly, daylight hours increase progressively from 12 hours to 13.2 hours, extending opportunities for outdoor pursuits. During this period, the UV index also elevates from 11 to 12, pointing to an increasingly intense sun.

Summer weather in Cayo Largo del Sur

Summer in Cayo Largo del Sur unfolds from June to August, with temperature lows peaking at 22°C (71.6°F) and highs at 32°C (89.6°F). Rainfall peaks during this season, particularly in August with an average of 167mm (6.57"). Daylight hours are at their zenith from 13.4 hours in June to 12.9 hours in August. The UV index maintains its peak of 12, the highest throughout the year.

Autumn weather in Cayo Largo del Sur

September to November constitutes the autumn in Cayo Largo del Sur with temperatures between 22°C (71.6°F) and 31°C (87.8°F). Rainfall remains considerable, beginning at 199mm (7.83") in September and reducing to 56mm (2.2") in November. Daylight reduces from 12.3 hours to 11.1 hours throughout these months. However, the UV index also decreases gradually from 11 to 7, weakening the sun's intensity.

Winter weather in Cayo Largo del Sur

In winter, extending from December to February, Cayo Largo del Sur experiences temperatures from 16°C (60.8°F) to 29°C (84.2°F). Rainfall is much subdued, with records as low as 20mm (0.79") in December to 39mm (1.54") in February. Daylight hours also decrease from 11.1 hours to 11 hours. The UV index rests at 7 during this period, an inviting escape from sun intensity. With sea temperature at a comfortable 27°C (80.6°F), wintertime visitation can be an appealing option for travelers seeking slightly cooler and drier conditions.

Weather in January

Beginning the year, Cayo Largo del Sur sees a climate defined by freshness and balance. Despite the winter season, the Cuban island maintains temperate conditions, a feature different from its neighbors further north. Comparatively, the city registers slightly lower rainfall figures than December, a trend soon to be reversed in the coming months. Weather in January »

Weather in February

Suitably situated between January and March, February in Cayo Largo del Sur serves as a midpoint in the city's dry season. While many parts of the world experience the biting cold of winter, this Cuban locality offers a gentle climate for residents and visitors alike. Weather in February »

Weather in March

Transitioning from winter to spring, the weather in Cayo Largo del Sur in March starts heating up compared to February. The moderate and balanced conditions might be interrupted occasionally by patches of rain, results in an overall pleasurable climate. Weather in March »

Weather in April

As one season gives way to another, April becomes a month of intensifying heat in Cayo Largo del Sur. The warmth from the last phases of the spring initiates transit into a more summery atmosphere than previous months. As April proceeds, rainfall surges by a noticeable margin, but does not dampen the appeal of outdoor activities given increased daylight hours. Weather in April »

Weather in May

Emblematic of the onset of summer, May turns up the heat in Cayo Largo del Sur with soaring temperatures. The increment in heat ushers in frequent showers, serving to balance the overall weather conditions. As the year advances, daylight hours peak leading to extensive possibilities for outdoor enthusiasts. Weather in May »

Weather in June

The onset of June kickstarts the city's wet season, a cyclical pattern experienced every year in Cayo Largo del Sur. June's heavy rainfall does little to curb the city's heat, as temperatures remain in the upper regions. Despite the increased precipitation, daylight hours persist on the higher side, thanks to June's calendar placement. Weather in June »

Weather in July

July in Cayo Largo del Sur extends summer's traits, where warmer temperatures converge with frequent rainfall. The marked contrast between heat and rain vibrantly showcases the tropical climate of this island city. Despite the wet conditions, sunshine persists for a generous portion of the day. Weather in July »

Weather in August

August continues the monsoon pattern in Cayo Largo del Sur, marked by a high-temperature, high-rainfall equation. This weather keeps the city's tropical appeal alive, attracting tourists allured by its distinct climate. A slight downward shift in daylight hours and sunshine occurs, but none that negatively impacts outdoor enjoyment. Weather in August »

Weather in September

Possessing features similar to its preceding and following months, September in Cayo Largo del Sur is a period of high summer. Bearing witness to soaring day temperatures and a significant volume of rain, the town remains lively. Weather in September »

Weather in October

As fall steps in, the weather, however, remains characteristically hot in October in Cayo Largo del Sur. This month marks a slight decline in temperatures and rainfall compared to the preceding month. Interestingly, sea temperatures remain steady, allowing uninterrupted beach activities. Weather in October »

Weather in November

The weather in Cayo Largo del Sur in November witnesses substantial changes in preparation for the year's end. A steady cooling trend is visible, coupled with a reduction in rainfall. Despite these modifications, sea temperatures remain comfortably warm, encouraging aquatic activities to continue. Weather in November »

Weather in December

Closing the loop, December in Cayo Largo del Sur presents mixed responses from the climate. A careful balance between warmth and chill defines the city's rhythm as the year comes to a close. Markedly, rain becomes less common, paving way for drier conditions. Weather in December »
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Frequently asked questions

What is the coldest month in Cayo Largo del Sur?

In Cayo Largo del Sur, January records the average lowest temperatures, peaking at 27°C (80.6°F) and reaching a low of 16°C (60.8°F).

How many days does it rain in Cayo Largo del Sur?

Throughout the year, there are 123 rainfall days, and 1190mm (46.85") of precipitation is accumulated.

What is the month with the least sunshine in Cayo Largo del Sur?

The months with the least sunshine in Cayo Largo del Sur, Cuba, are January, February, June, November and December, with an average of 7h of sunshine.

What is the month with the lowest UV index in Cayo Largo del Sur?

The months with the lowest UV index are January, November and December, with an average maximum UV index of 7.

What are the months with the coldest sea water in Cayo Largo del Sur?

The months with the coldest seawater are February and March, with an average sea temperature of 26°C (78.8°F).

When is Daylight Saving Time (DST) in Cayo Largo del Sur?

On Sunday, 10. March 2024, at 00:00, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends on Sunday, 03. November 2024, at 01:00, and the time zone reverts from CDT to CST.

What month has the most sunshine in Cayo Largo del Sur?

With an average of 9h of sunshine, April has the most sunshine of the year.

When is the highest UV index in Cayo Largo del Sur?

The months with the highest UV index in Cayo Largo del Sur, Cuba, are April through August, with an average maximum UV index of 12.

What time of the year is the hottest in Cayo Largo del Sur?

Peak temperatures in Cayo Largo del Sur are observed in June through September, averaging a high-temperature of 32°C (89.6°F).

When are the longest days in Cayo Largo del Sur?

With an average of 13h and 24min of daylight, June has the longest days of the year.

What are the months with the warmest sea water in Cayo Largo del Sur?

August and September, with an average sea temperature of 30°C (86°F), are months with the warmest seawater in Cayo Largo del Sur, Cuba.

What is the rainiest month in Cayo Largo del Sur?

The month with the most rainfall in Cayo Largo del Sur is September, when the rain falls for 15 days and typically aggregates up to 199mm (7.83") of precipitation.

What is the driest month in Cayo Largo del Sur?

December is the month with the least rainfall. Rain falls for 9 days and accumulates 20mm (0.79") of precipitation.

What is the month with the shortest days in Cayo Largo del Sur?

December has the shortest days of the year in Cayo Largo del Sur, Cuba, with an average of 10h and 48min of daylight.

Average temperature
Cayo Largo del Sur, Cuba

Average temperature - Cayo Largo del Sur, Cuba

The warmest months (with the highest average high temperature) are June, July, August and September (32°C).
The month with the lowest average high temperature is January (27°C).

The months with the highest average low temperature are June, July, August and September (22°C).
The coldest months (with the lowest average low temperature) are January and February (16°C).

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Average rainfall
Cayo Largo del Sur, Cuba

Average rainfall - Cayo Largo del Sur, Cuba

The wettest month (with the highest rainfall) is September (199mm).
The driest month (with the least rainfall) is December (20mm).

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Average rainfall days
Cayo Largo del Sur, Cuba

Average rainfall days - Cayo Largo del Sur, Cuba

The month with the highest number of rainy days is September (15 days).
The months with the least rainy days are February, March and April (6 days).

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Average sea temperature
Cayo Largo del Sur, Cuba

Average sea temperature - Cayo Largo del Sur, Cuba

The best months for swimming (with the highest average sea temperature) are August and September (30°C).
The coldest months (with the lowest average sea temperature) are February and March (26°C).

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Average daylight / Average sunshine
Cayo Largo del Sur, Cuba

Average daylight / Average sunshine - Cayo Largo del Sur, Cuba

The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 48min).

The month with the most sunshine is April (Average sunshine: 9h).
The months with the least sunshine are January, February, June, November and December (Average sunshine: 7h).

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Average UV index
Cayo Largo del Sur, Cuba

Average UV index - Cayo Largo del Sur, Cuba

The months with the highest UV index are April, May, June, July and August (UV index 12).
The months with the lowest UV index are January, November and December (UV index 7).

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Cayo Largo del Sur, Cuba

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