August Weather in Jamaica, Cuba

Last updated: August 21, 2025

Experience the vibrant weather of Jamaica and Cuba in August, where the maximum temperatures soar to a sizzling 35°C (94°F), while the average settles at a pleasant 28°C (82°F). Nights are comfortably warm, dipping to a minimum of 23°C (73°F). However, be prepared for the possibility of rain, as these islands see about 142 mm (5.6 in) of precipitation over approximately 20 days, contributing to a humidity level of 77%. Whether you're soaking up the sun or enjoying the refreshing showers, August offers a unique blend of warmth and moisture that defines the Caribbean experience.

August Temperature in Jamaica

In August, both Jamaica and Cuba showcase warm and inviting temperatures, making it an ideal time for beach lovers and adventurers. With a minimum temperature of 23°C (73°F) and an average of 28°C (82°F), the warmth is complemented by a peak of 35°C (94°F). This consistent warmth reflects a gradual increase from previous months, as July already saw similar highs. The tropical ambiance is perfect for exploring vibrant local culture or lounging on sun-kissed shores. As summer transitions towards fall, the climate remains delightfully humid, ensuring visitors enjoy the full essence of Caribbean heat and charm.

August Weather in Jamaica: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Jamaica, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jamaica, August typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec717474787981828281797573
Data source: Temperature data for Jamaica generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Jamaica

In August, Jamaica and Cuba experience a significant amount of rainfall, with precipitation measuring approximately 142 mm (5.6 in) over about 20 days. This marks a slight decline from the heavier downpours seen in the preceding months, particularly May, which recorded a whopping 187 mm (7.3 in), contributing to the region's lush greenery. The consistent rainfall pattern throughout the summer effectively sets the stage for a diverse ecosystem but also highlights an emerging trend: as the summer progresses, precipitation tends to remain high, often peaking in May and June before stabilizing in August. This trend of sustained moisture, coupled with warm temperatures, creates a vibrant environment, perfect for tropical growth and agriculture, even as the rainy season approaches its tail end.

August Precipitation Trends in Jamaica

The chart displays monthly precipitation patterns in Jamaica, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Jamaica, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec252616431871571451421501224737
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Jamaica

August in Jamaica and Cuba sees a humidity level of 77%, marking a slight increase from the July average of 75%. This rise is part of a broader trend as the summer months unfold; humidity levels gradually transition from a peak of 79% in January to a steady climb through the late summer. Following August, September brings a marginal uptick to 78%, reflecting the tropical climate's tendency towards increased moisture. As the year progresses into the fall and winter months, humidity continues to escalate, reaching its highest points of 80% in October and 81% in both November and December. This consistent humidity pattern not only characterizes the region’s climate but also highlights the warm, tropical environment that defines Jamaica and Cuba throughout the year.

August Average Humidity in Jamaica

This chart illustrates the average monthly humidity levels in Jamaica, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Jamaica is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%77%71%70%72%73%75%77%78%80%81%81%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Jamaica

During August, Jamaica and Cuba experience a notably high UV Index of 12, categorizing this month's sun exposure as extreme. This trend aligns with the preceding months of June and July, which also recorded a UV Index of 12, highlighting a sustained period of intense solar radiation in the region. Notably, the burn time remains critically brief at just 10 minutes, emphasizing the importance of protective measures. As we transition into September, the UV Index stays consistent at 12, indicating that sun safety should remain a priority. For those looking to explore more about UV levels throughout the year, check out the detailed information at Jamaica UV Index.

Maximum UV Index Levels in Jamaica for August

The chart shows the monthly maximum UV Index (UVI) for Jamaica in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Jamaica typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710111212131212121087
Data source: Jamaica August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

August Sunshine in Jamaica

August in Jamaica and Cuba continues the trend of abundant sunshine, boasting 336 hours of glorious daylight. This month follows the sunniest July, which recorded 343 hours, perfectly framing the peak summer experience in the Caribbean. As the year progresses, sunshine hours gradually fluctuate, revealing a pattern where spring and summer consistently offer the most radiant days. While early year months, such as January, show significantly lower sunshine with only 227 hours, the ascent in sunlight from winter to summer illustrates the region's inviting tropical allure. September also keeps the warm glow alive with 313 hours, hinting that summer's charm lingers even as fall approaches.

Monthly Sunshine Duration in Jamaica: August Highlighted

The August sunshine duration represents the total number of hours Jamaica experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec227h280h332h337h327h311h343h336h313h299h288h288h
Data source: Jamaica August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Jamaica During August

In Jamaica and Cuba, the likelihood of sunny weather takes quite a dip in August, with only a 34% chance of clear skies. This marks a significant decline from the sun-drenched months of March and February, which enjoy chances as high as 79% and 72%, respectively. As summer progresses, the chance of sunshine fluctuates, peaking in the winter months of December and January at 77% and 43%. However, by the time June rolls around, the sun becomes a rare sight, with only a 22% likelihood, making August's weather a part of this trend toward overcast conditions. Overall, while August still offers a sprinkling of sunny days, travelers should prepare for cloudy skies as the summer season shifts.

Percentage of Sunny Days in August in Jamaica

The chart illustrates the percentage of sunny days in Jamaica throughout the year, with August highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Jamaica experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec43%72%79%62%56%22%52%34%34%44%42%77%
Data source: Jamaica August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Jamaica in August

In August, daylight in Jamaica and Cuba shifts to a comfortable 12 hours, mirroring the previous month's sunshine. This slight decrease from the peak of 13 hours in June and July signals the gradual transition towards autumn as daylight begins to wane. Overall, the trend highlights a summer of abundant light, starting from a modest 10 hours in January and climbing steadily to a peak, before tapering off again. As the year unfolds, the pattern showcases a rhythmic dance of daylight, with longer hours during the vibrant summer months and a gentle return to the shorter days of winter.

Average Daylight Hours in Jamaica for August

The chart illustrates the variation in daylight duration in Jamaica throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 52m11h 22m12h 1m12h 41m13h 15m13h 31m13h 22m12h 52m12h 14m11h 34m11h10h 43m
Data source: Jamaica daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Jamaica

In August, the winds in Jamaica and Cuba exhibit a gentle shift, averaging 3.4 m/s (8 mph), which is a moderate transition from the slightly higher 4.0 m/s (9 mph) recorded in April. This calming trend continues into the subsequent months, as September sees a further drop to 2.3 m/s (5 mph), marking the onset of a noticeable decline in wind strength leading into autumn. Interestingly, July experiences a comparable wind speed of 3.1 m/s (7 mph), suggesting that while August still carries the lingering breezes of summer, it foreshadows the tranquil conditions that characterize the island climate in the latter part of the year. Overall, while August's winds may not be the most vigorous, they provide a refreshing respite, perfectly complementing the vibrant tropical scenery.

Average August Wind Speed in Jamaica

The chart displays monthly wind speed patterns in Jamaica, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.23.93.94.03.73.03.13.4 m/s2.32.93.23.3
Data source: Jamaica August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Jamaica Compares to Other Months

Weather in Jamaica varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Jamaica, focusing on differences in temperature, rainfall, humidity, and UV levels.

August and January present contrasting weather patterns, highlighting the seasonal diversity. In August, temperatures range from a minimum of 23°C (73°F) to a maximum of 35°C (94°F), with an average of 28°C (82°F). This month is characterized by high humidity at 77% and significant rainfall, averaging 142 mm (5.6 in) over 20 days. Conversely, January offers milder conditions, with temperatures ranging from a cool 11°C (51°F) to a warmer 30°C (86°F), averaging at 22°C (71°F). Rainfall is much less frequent in January, totaling only 25 mm (1.0 in) across 4 days, accompanied by a slight increase in humidity at 79%. For a detailed look at January weather, visit Jamaica weather in January.

August and February present contrasting weather patterns. In August, temperatures range from a minimum of 23°C (73°F) to a scorching maximum of 35°C (94°F), with an average of 28°C (82°F). The month is also characterized by high humidity at 77% and significant rainfall, with 142 mm (5.6 in) of precipitation spread over 20 days. In contrast, February enjoys milder temperatures, with lows of 7°C (45°F) and highs reaching 31°C (89°F), while the average sits at a comfortable 23°C (74°F). Precipitation in February is much lower, at only 26 mm (1.0 in) across just 3 days, though humidity remains high at 77%. For more details on February weather, you can check out Jamaica weather in February.

August and March present distinctly different weather patterns. In August, temperatures soar with a minimum of 23°C (73°F), averaging 28°C (82°F), and peaking at 35°C (94°F). The month is also marked by high humidity at 77% and significant rainfall, with about 142 mm (5.6 in) of precipitation spread over 20 days. In contrast, March offers a more moderate climate, with minimum temperatures around 11°C (52°F) and averages of 23°C (74°F), reaching up to a maximum of 32°C (90°F). Precipitation is minimal in March, totaling only 16 mm (0.6 in) over just 3 days, and humidity is slightly lower at 71%. For more details on March weather specifically, you can visit Jamaica weather in March.

August and April exhibit contrasting weather patterns, showcasing the shift from a warm spring to the height of summer. In August, temperatures range from a minimum of 23°C (73°F) to a maximum of 35°C (94°F), with an average temperature of 28°C (82°F). This month also sees significant rainfall, with 142 mm (5.6 in) of precipitation spread over 20 days and humidity levels at 77%. In comparison, April has a milder climate with temperatures ranging from 14°C (57°F) to a maximum of 34°C (94°F) and an average of 26°C (78°F). Rainfall is considerably less, totaling only 43 mm (1.7 in) over 7 days and with slightly lower humidity at 70%. For those interested in April's specific weather conditions, additional details can be found in this resource: Jamaica weather in April.

When comparing the weather in August and May, August tends to be warmer and slightly more humid. The minimum temperatures in August are typically around 23°C (73°F) compared to May’s 17°C (64°F), with August's average temperature reaching 28°C (82°F) versus May's 26°C (79°F). Both months can experience high maximum temperatures of 34°C (94°F), but August has more frequent rain, receiving 142 mm (5.6 in) over 20 days, compared to May, which sees 187 mm (7.3 in) over just 16 days. The humidity in August is a bit higher at 77%, compared to 72% in May. For more details, you can visit Jamaica weather in May.

In comparing the weather of August and June, both months offer warm temperatures, but August typically sees slightly higher averages, with a minimum of 23°C (73°F) and an average of 28°C (82°F), compared to June's minimum of 22°C (72°F) and average of 27°C (81°F). While the maximum temperatures are similar, peaking at 35°C (94°F) for both months, August experiences slightly less precipitation at 142 mm (5.6 in) over 20 days, compared to June's 157 mm (6.2 in) over the same number of days. Humidity also remains higher in August at 77%, while June has a lower humidity level of 73%. For more detailed insights on June's weather conditions, you can check out Jamaica weather in June.

In comparing the weather between July and August, we see some notable similarities and differences. Both months maintain an average temperature of 28°C (82°F), with minimum temperatures slightly rising from July's 22°C (72°F) to August's 23°C (73°F). However, the maximum temperature remains consistent, peaking at around 35°C (94°F) in both months, though July's maximum is slightly higher at 35°C (95°F).

In terms of precipitation, August sees a slight decrease with 142 mm (5.6 in) over 20 rainy days, compared to July's 145 mm (5.7 in) over 21 days. Moreover, humidity is marginally higher in August at 77%, compared to 75% in July. Overall, both months are quite humid and warm, but August offers slightly less rainfall and a touch more humidity. For a more detailed look, you can visit Jamaica weather in July.

August and September exhibit similar tropical weather patterns, but there are subtle differences. In August, temperatures range from a minimum of 23°C (73°F) to a maximum of 35°C (94°F), with an average of 28°C (82°F). The month experiences significant rainfall, with 142 mm (5.6 in) spread over 20 days and humidity levels at 77%. Conversely, September shows a slight drop in average temperature, with a minimum of 21°C (70°F) and a maximum of 34°C (94°F), averaging 27°C (81°F). Rainfall increases to 150 mm (5.9 in) over 22 days, and humidity slightly rises to 78%. For a detailed look at the weather conditions in September, visit Jamaica weather in September.

In August, the weather tends to be warmer with temperatures ranging from a minimum of 23°C (73°F) to a maximum of 35°C (94°F), and an average of 28°C (82°F). The month also experiences significant rainfall, with about 142 mm (5.6 in) of precipitation over 20 days, and humidity levels around 77%. In contrast, October sees a slight drop in temperatures, with a minimum of 16°C (61°F), averaging 26°C (80°F), and a maximum of 32°C (91°F). While precipitation remains comparable at 122 mm (4.8 in) over the same 20 days, humidity rises slightly to 80%. Overall, October offers a more moderate climate with cooler evenings compared to the hotter and more humid conditions of August. For more details, see Jamaica weather in October.

In August, the weather is typically hot and humid, with average temperatures around 28°C (82°F). The month experiences significant rainfall, with an average of 142 mm (5.6 in) spread over about 20 days, resulting in a humidity level of 77%. In contrast, November brings a cooler and more comfortable climate, with average temperatures dropping to 24°C (76°F) and maximums reaching up to 31°C (88°F). Rainfall is considerably lower in November, with only 47 mm (1.9 in) across 10 days, along with a slightly higher humidity of 81%. For more insights on November weather, you can visit Jamaica weather in November.

August and December present notably different weather conditions. In August, temperatures range from a minimum of 23°C (73°F) to a maximum of 35°C (94°F), with an average of 28°C (82°F). This month is marked by high humidity at 77% and significant precipitation, averaging 142 mm (5.6 in) over about 20 days. In contrast, December offers cooler temperatures, with a minimum of 10°C (51°F) and a maximum of 30°C (87°F), along with an average of 23°C (73°F). Rainfall is considerably less in December, totaling only 37 mm (1.5 in) spread over just 5 days, coupled with a slightly higher humidity of 81%. For a detailed look at December's climate, you can refer to Jamaica weather in December.

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Conclusion: What to Expect From August Weather in Jamaica

In August, Jamaica experiences a unique blend of warmth and humidity that sets it apart from other months. With average temperatures hovering around 28°C (82°F), this tropical paradise offers a hottest feel, peaking at 35°C (94°F) on particularly sunny days. However, be prepared for frequent rain, as nearly two-thirds of the month sees precipitation, amounting to approximately 142 mm (5.6 in). The 77% humidity can make the air feel heavier, creating a rich, vibrant atmosphere typical of the Caribbean summer. For travelers intrigued by Jamaica's diverse climate patterns, further insights can be found at Jamaica Climate.