August Weather in Port Royal, Jamaica

Last updated: August 21, 2025

August in Port Royal, Jamaica showcases a warm and tropical climate, with daytime temperatures reaching a maximum of 32°C (89°F) and an average of 27°C (82°F). The evenings offer slight relief, dipping to a minimum of 24°C (75°F). This month is characterized by notable humidity levels at 78%, contributing to a lush, vibrant atmosphere. Rainfall is common, with 98 mm (3.8 in) of precipitation over approximately 16 days, making it a month where brief, tropical downpours are part of the daily rhythm. Whether you're enjoying the sun or seeking cover during a shower, August provides a quintessentially Jamaican experience.

August Temperature in Port Royal

In August, Port Royal, Jamaica experiences warm and inviting temperatures, with a minimum of 24°C (75°F) and an average of 27°C (82°F), peaking at a maximum of 32°C (89°F). This month reflects a summer ambiance that's consistent with July's warmth, featuring the same maximum temperature. As the year progresses, we see a gradual increase in warmth from January's cooler averages to the more tropical conditions experienced in the middle of the year. Visitors can expect a vibrant atmosphere, perfect for enjoying the stunning beaches and lush landscapes that this idyllic Jamaican town has to offer.

August Weather in Port Royal: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Port Royal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port Royal, 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).
JanFebMarAprMayJunJulAugSepOctNovDec767676777980818181797877
Data source: Temperature data for Port Royal 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 Port Royal

In August, Port Royal, Jamaica experiences a notable uptick in precipitation, with an average rainfall of 98 mm (3.8 in) over 16 days, setting the stage for lush landscapes and vibrant foliage. This month marks a peak before the impending autumnal downpours; rainfall levels rise significantly from July's 37 mm (1.5 in), reflecting a transition into Jamaica’s wetter season. Following August, September continues the trend with even greater rainfall at 105 mm (4.1 in), hinting at a pattern of increasing moisture leading into the autumn months. Overall, the summer months show a clear progression towards higher precipitation, with August acting as a pivotal bridge between the drier summer and the more torrential rains of fall.

August Precipitation Trends in Port Royal

The chart displays monthly precipitation patterns in Port Royal, 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 Port Royal, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec3835466610749379810519613745
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Port Royal

In August, Port Royal, Jamaica, experiences a humidity level of 78%, which is slightly lower than the summer peak reached in the previous months. This month typically sees the tail-end of a gradually rising trend, with humidity starting at 76% in January and climbing to 79% by July. Following the humid peak of early summer, August marks the beginning of a gentle decline, with humidity decreasing to 77% in September. The month’s conditions often lend a tropical feel to the vibrant landscapes of Port Royal, hinting at the lush greenery that thrives in this humid climate while paving the way for the subtle shifts leading into the fall season.

August Average Humidity in Port Royal

This chart illustrates the average monthly humidity levels in Port Royal, 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 Port Royal is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%76%75%76%77%79%79%78%77%76%78%77%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Port Royal

In August, Port Royal, Jamaica continues to experience elevated UV levels, with an index of 13 classified as extreme, resulting in a burn time of just 10 minutes. This trend of high UV exposure extends from the spring months through the summer, showcasing a consistent pattern in the region's weather. With the UV Index peaking at 14 in April, followed by 13 in May, June, July, and August, outdoor enthusiasts are reminded to take necessary precautions to protect their skin. As summer transitions into fall, the index slightly decreases to 12 in September and October. Regardless, it's crucial for residents and visitors alike to stay informed and be vigilant about sun safety. For more insights, check the Port Royal UV Index.

Maximum UV Index Levels in Port Royal for August

The chart shows the monthly maximum UV Index (UVI) for Port Royal 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 Port Royal typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131413131313121298
Data source: Port Royal 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 Port Royal

Port Royal, Jamaica, basks in abundant sunshine throughout the year, with August boasting an impressive 342 hours of bright rays. This month stands as a highlight in the summer sun, following a peak in July with 354 hours, showcasing the region's vibrant summer vibes. As we transition into autumn, the hours gradually taper off, with September witnessing a drop to 321 hours. Notably, this trend of decreasing sunlight continues into the fall months, with November bringing in 291 hours. Despite the gradual decline, Port Royal consistently enjoys a wealth of sunshine, especially in the vibrant mid-year months, making it an enticing destination for sun-seekers.

Monthly Sunshine Duration in Port Royal: August Highlighted

The August sunshine duration represents the total number of hours Port Royal 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.
JanFebMarAprMayJunJulAugSepOctNovDec250h303h346h344h330h340h354h342h321h305h291h314h
Data source: Port Royal August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Port Royal During August

In Port Royal, Jamaica, the likelihood of sunny weather experiences a notable dip in August, with only a 43% chance of sunshine. This marks a decrease from the slightly higher probabilities observed during the mid-year months, such as May (63%) and July (49%). Interestingly, August is also positioned at the lower end of the spectrum when compared to other months, especially when contrasted with the sunniest periods in February (76%) and March (70%). This trend suggests that while summer months generally enjoy ample sunshine, August tends to be a transitional time, hinting at the changes that come with the approaching autumn. Therefore, visitors might want to prepare for a mix of sun and clouds during their time in this tropical paradise.

Percentage of Sunny Days in August in Port Royal

The chart illustrates the percentage of sunny days in Port Royal 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 Port Royal experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec51%76%70%50%63%46%49%43%54%42%43%65%
Data source: Port Royal August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Port Royal in August

In August, Port Royal, Jamaica enjoys approximately 12 hours of daylight, continuing the trend established in previous months. This vibrant summer month sees a slight dip from the sunniest period of June and July, which each boasted 13 hours of daylight. The overall trend throughout the year showcases a gradual increase in daylight from 11 hours in January and February to a peak in the heart of summer, followed by a return to 11 hours as the year transitions into the cooler months. This rhythmic pattern of daylight hours reflects Port Royal's tropical climate, providing ample opportunities for both adventure and relaxation beneath the warm Caribbean sun.

Average Daylight Hours in Port Royal for August

The chart illustrates the variation in daylight duration in Port Royal throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 10m11h 32m12h 2m12h 33m12h 58m13h 10m13h 4m12h 41m12h 12m11h 42m11h 16m11h 3m
Data source: Port Royal daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Port Royal

In August, Port Royal, Jamaica, experiences an average wind speed of 3.8 m/s (8 mph), which reflects a modest yet pleasant breeze that is characteristic of the summer months. This aligns with the slightly elevated winds seen in June and July, where speeds peak at 4.3 m/s (10 mph), hinting at a lively atmosphere perfect for water activities and beach relaxation. As summer ebbs, the winds begin to calm, with a notable decline in September, dropping to 2.6 m/s (6 mph). Overall, the trend illustrates a gentle ebb and flow of the maritime winds, enhancing the island's tropical charm throughout the year.

Average August Wind Speed in Port Royal

The chart displays monthly wind speed patterns in Port Royal, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.54.43.63.63.84.34.33.8 m/s2.62.92.73.4
Data source: Port Royal August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Port Royal Compares to Other Months

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

In comparing the weather of August and January, August is characterized by warmer temperatures, with a minimum of 24°C (75°F) and an average high of 32°C (89°F). It also experiences notable humidity at 78% and higher precipitation, averaging 98 mm (3.8 inches) over 16 days. In contrast, January offers a milder climate with a minimum temperature of 20°C (69°F) and a maximum of 29°C (84°F). This month receives significantly less rainfall, totaling only 38 mm (1.5 inches) over 10 days, while the humidity is slightly lower at 76%. For a more detailed look at January weather, you can visit Port Royal weather in January.

In comparing the weather between August and February, August experiences warmer temperatures with an average of 27°C (82°F) and highs reaching up to 32°C (89°F), while February is slightly cooler, averaging 24°C (76°F) with a maximum of 28°C (83°F). Precipitation is significantly higher in August, totaling 98 mm (3.8 in) over 16 days, compared to February's more moderate 35 mm (1.4 in) over 14 days. Both months boast high humidity, with August at 78% and February at 76%. For more detailed insights on February weather, you can refer to Port Royal weather in February.

In August, temperatures are generally warmer, with average highs reaching up to 32°C (89°F), compared to March's more moderate highs of 28°C (84°F). August also experiences higher humidity at 78%, while March maintains a slightly lower level at 75%. Additionally, August has more significant precipitation, averaging 98 mm (3.8 in) over 16 days, while March sees less rain at 46 mm (1.8 in) over 15 days. For more detailed weather insights, you can check Port Royal weather in March.

When comparing the weather in August and April, August tends to be slightly warmer with average temperatures reaching 27°C (82°F) and maximums peaking at 32°C (89°F), while April averages a cooler 25°C (78°F) with maximums of 30°C (86°F). Additionally, August experiences more rainfall, with 98 mm (3.8 in) spread over 16 days, compared to April's 66 mm (2.6 in) over 12 days. Humidity levels are comparable, with August at 78% and April at 76%. For more detailed information, you can check Port Royal weather in April.

In comparing the weather between August and May, both months exhibit warm temperatures, but August tends to be slightly warmer. August boasts an average temperature of 27°C (82°F), with maximums reaching 32°C (89°F), while May's average is slightly cooler at 26°C (79°F) and peaks at 30°C (87°F). Interestingly, both months report similar days of precipitation, with August receiving 98 mm (3.8 in) over 16 days and May experiencing slightly more rainfall at 107 mm (4.2 in) with the same number of rainy days. Humidity levels are comparable as well, with August at 78% and May at 77%. For more detailed insights into May's weather, you can visit Port Royal weather in May.

When comparing the weather in August and June, both months feature similar average temperatures, with June slightly cooler at an average of 27°C (80°F) compared to August's average of 27°C (82°F). However, August experiences higher maximum temperatures, peaking at 32°C (89°F), while June reaches a maximum of 31°C (88°F). Precipitation is more prevalent in August, with 98 mm (3.8 in) over 16 days, compared to June's 49 mm (1.9 in) across 13 days. Interestingly, the humidity remains consistent between the two months, hovering around 78% in August and 79% in June. For a more detailed overview of June's weather, you can visit Port Royal weather in June.

In comparing the weather of August and July, both months exhibit similar temperature patterns, with minimum temperatures around 24°C (75°F), average temperatures at 27°C (82°F), and maximums reaching 32°C (89°F) in August and 90°F in July. However, August experiences significantly higher precipitation, with 98 mm (3.8 in) over 16 days, compared to just 37 mm (1.5 in) across 11 days in July. The humidity levels remain relatively close, at 78% in August and 79% in July, suggesting that while temperatures remain stable, August is distinctly wetter. For more detailed information, you can explore Port Royal weather in July.

In comparing the weather of August and September, we see some notable similarities and slight differences. Both months feature a minimum temperature of 24°C (75°F) and an average temperature around 27°C (81°F). However, September edges slightly warmer with a maximum temperature of 32°C (90°F) compared to August's 32°C (89°F). In terms of precipitation, September experiences a slight increase, with 105 mm (4.1 in) falling over 18 days, compared to August's 98 mm (3.8 in) over 16 days. Humidity remains fairly consistent, hovering around 77% in September and 78% in August. For a more detailed look into September's weather, you can check Port Royal weather in September.

In comparing the weather between August and October, we can observe that both months maintain warm temperatures, with August showing a slightly higher average of 27°C (82°F) compared to October's 26°C (80°F). The maximum temperatures are also comparable, peaking at 32°C (89°F) in August and 31°C (87°F) in October. However, October experiences significantly more precipitation, totaling 196 mm (7.7 in) over 24 days, in contrast to August's 98 mm (3.8 in) over 16 days. Moreover, humidity levels remain high, with August at 78% and October slightly lower at 76%. For more details on October's climate, you can check Port Royal weather in October.

In August, temperatures typically range from a minimum of 24°C (75°F) to a maximum of 32°C (89°F), with an average of 27°C (82°F). The month experiences about 98 mm (3.8 in) of precipitation over roughly 16 days and maintains a steady humidity level of 78%. In contrast, November sees slightly cooler temperatures, with a minimum of 23°C (73°F), an average of 26°C (79°F), and a maximum of 30°C (86°F). This month also experiences more precipitation, totaling 137 mm (5.4 in) over 20 days, while humidity remains consistent at 78%. For a closer look at weather specifics in November, you can refer to Port Royal weather in November.

August and December exhibit notable differences in weather patterns. August enjoys warmer temperatures with a minimum of 24°C (75°F) and an average of 27°C (82°F), peaking at 32°C (89°F). However, it also experiences higher precipitation, totaling 98 mm (3.8 in) over 16 days, coupled with humidity levels reaching 78%. In contrast, December is slightly cooler, with a minimum temperature of 22°C (72°F) and an average of 25°C (78°F), while the maximum temperature reaches 29°C (85°F). Rainfall is significantly lower in December at 45 mm (1.8 in) over 13 days, maintaining a similar humidity level of 77%. For more specific details, visit Port Royal weather in December.

Compare Port Royal's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Port Royal

August in Port Royal brings a vibrant and warm atmosphere, characterized by relatively high temperatures and elevated humidity levels, setting it apart from other months. With average temperatures hovering around 27°C (82°F) and peaks reaching up to 32°C (89°F), visitors can expect a truly tropical experience. However, the month also sees a significant amount of rain, averaging 98 mm over approximately 16 rainy days, which adds a lush greenery to the landscape but can surprise unprepared travelers. This mix of warmth and moisture means August is both steamy and lively, ideal for those who love the blend of sun and brief tropical showers. For a deeper dive into Port Royal's weather patterns, visit Port Royal Climate.