August Weather in Luquillo, Puerto Rico

Last updated: August 31, 2025

In August, Luquillo, Puerto Rico experiences a warm tropical climate characterized by an average temperature of 27°C (82°F), with daily highs reaching up to 30°C (87°F) and lows around 24°C (76°F). The island's humidity hovers around a steamy 80%, contributing to the lush, vibrant environment. However, visitors should be prepared for abundant rainfall, as August sees approximately 153 mm (6.0 in) of precipitation over 27 days, creating a backdrop of showers that nourish the landscape. This combination of heat and moisture makes August a uniquely enchanting, though somewhat wet, time to explore Luquillo’s natural beauty.

August Temperature in Luquillo

In August, Luquillo, Puerto Rico, experiences warm and inviting temperatures, making it a peak month for beachgoers and outdoor enthusiasts. With minimum temperatures around 24°C (76°F) and averages peaking at about 27°C (82°F), the air is comfortably warm, ideal for sun-soaked adventures. The maximum temperature can reach up to 30°C (87°F), consistent with the trend of rising warmth seen since June. As summer approaches its end, August maintains those tropical vibes, with humidity levels remaining high, ensuring that the lush landscapes remain vibrant. Overall, this month serves as a beautiful bridge between the sizzling summer and the gentle autumn, inviting visitors to soak in the sun and savor the natural beauty of this coastal paradise.

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

The chart illustrates August temperature patterns in Luquillo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Luquillo, 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).
JanFebMarAprMayJunJulAugSepOctNovDec767676777980818181817978
Data source: Temperature data for Luquillo generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Luquillo

In August, Luquillo, Puerto Rico, experiences a significant peak in precipitation, with an impressive total of 153 mm (6.0 in) of rainfall over 27 days. This month marks a continuation of the wettest season, preceded by July’s rainfall of 149 mm (5.9 in), and setting the stage for September, which sees an even higher total of 195 mm (7.7 in). The increase in precipitation not only highlights the characteristic humidity of this coastal region but also indicates a tendency for more frequent downpours as the summer transitions into fall. This pattern illustrates how the lush vegetation and vibrant ecosystems thrive amid the tropical rain, making Luquillo a magnificent destination for nature enthusiasts.

August Precipitation Trends in Luquillo

The chart displays monthly precipitation patterns in Luquillo, 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 Luquillo, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec5761787910911014915319618713281
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Luquillo

In August, Luquillo, Puerto Rico, experiences an average humidity level of 80%, which marks a peak in the summer months. This level of humidity aligns with the trend seen in July, where humidity also reaches 80%, creating a sticky, tropical ambiance perfect for beach outings. As the summer progresses, humidity levels rise from 76% in January to a sweltering 80% in both July and August, before gradually decreasing in September to 79%. This pattern showcases the characteristic tropical climate of the region, where humidity remains consistently high, particularly in the warmer months, setting the stage for vibrant flora and a lush environment.

August Average Humidity in Luquillo

This chart illustrates the average monthly humidity levels in Luquillo, 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 Luquillo is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%74%75%75%77%80%80%79%78%78%76%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Luquillo

In August, Luquillo, Puerto Rico experiences a UV Index of 13, categorized as extreme, which means sun protection is essential with a burn time of just 10 minutes. This trend of high UV exposure continues from earlier months, reflecting the region's consistent vulnerability to intense sun rays during the summer. From January's UV Index of 9 to September's peak of 14, it's clear that the annual cycle brings notably high ultraviolet levels, particularly from February through October. Thus, whether you're soaking in the sun's rays or partaking in outdoor activities, remaining vigilant about skin protection is crucial. For further insights on UV levels throughout the year, check out Luquillo UV Index.

Maximum UV Index Levels in Luquillo for August

The chart shows the monthly maximum UV Index (UVI) for Luquillo 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 Luquillo typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131313131213141298
Data source: Luquillo 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 Luquillo

In August, Luquillo, Puerto Rico, basks in a delightful 349 hours of sunshine, a continuation of its vibrant summer. Following a dynamic peak in May with 357 hours, the sun remains generously bright throughout the season, with July and June close behind. As summer wanes, the hours of sunshine gently taper off into the fall months, yet August still holds onto significant daylight, allowing visitors to enjoy its stunning beaches and lush landscapes. The trend suggests that while the days begin to shorten, Luquillo consistently boasts ample sunshine, inviting adventurers to relish its tropical warmth even as summer transitions.

Monthly Sunshine Duration in Luquillo: August Highlighted

The August sunshine duration represents the total number of hours Luquillo 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.
JanFebMarAprMayJunJulAugSepOctNovDec258h302h348h348h357h344h354h349h318h316h302h320h
Data source: Luquillo August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Luquillo During August

In August, Luquillo, Puerto Rico, experiences a 37% chance of sunny weather, a notable decline following the sunnier months of February and March, which boast chances as high as 65% and 61%, respectively. This trend hints at a shift into the wetter season, with July and June reflecting notable decreases in sunshine probability at 40% and a mere 20%. Conversely, the arrival of September sees a slight improvement to 46%, suggesting that while August may be less favorable for sun-seekers, the weather begins to brighten again as summer transitions into fall. As such, visitors should prepare for a mix of sunshine and occasional rain, characteristic of this vibrant tropical locale.

Percentage of Sunny Days in August in Luquillo

The chart illustrates the percentage of sunny days in Luquillo 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 Luquillo experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec50%65%61%44%51%20%40%37%46%46%57%59%
Data source: Luquillo August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Luquillo in August

In August, Luquillo, Puerto Rico enjoys a delightful 12 hours of daylight, maintaining a steady balance similar to the preceding months of April, May, and September. This month mirrors the gradual sunlight increase witnessed from January through July, where daylight stretches to a peak of 13 hours. As summer transitions to autumn, the day length starts to taper off, hinting at the approaching shorter days of fall. The consistent daylight duration throughout the summer months creates an inviting environment for outdoor activities, while the shift in September signals a gentle return to more subdued daylight hours.

Average Daylight Hours in Luquillo for August

The chart illustrates the variation in daylight duration in Luquillo throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 9m11h 32m12h 2m12h 33m12h 59m13h 12m13h 5m12h 42m12h 12m11h 41m11h 15m11h 2m
Data source: Luquillo daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Luquillo

In August, the average wind speed in Luquillo, Puerto Rico, settles at a comfortable 4.4 m/s (10 mph), contributing to the pleasant tropical atmosphere. This month reflects a slight decline from the steady breezes of July, which boasts the same 4.4 m/s but showcases the peak wind speeds of the summer months. Following a trend of variability, June and July marked the height of wind activity, with speeds reaching 4.7 m/s (11 mph) and 5.0 m/s (11 mph) respectively. As the year progresses into September, the winds relax further, dropping to an average of 3.2 m/s (7 mph), illustrating the seasonal gentleness that contrasts with the bustling energy of earlier summer weeks. This shift not only highlights the dynamic climate of the region but also sets the stage for a tranquil late summer experience, embraced by the warm whispers of the August wind.

Average August Wind Speed in Luquillo

The chart displays monthly wind speed patterns in Luquillo, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.05.04.43.74.24.75.04.4 m/s3.23.43.64.4
Data source: Luquillo August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Luquillo Compares to Other Months

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

August and January present distinct weather patterns in terms of temperature and precipitation. August typically enjoys warmer conditions, with daily temperatures ranging from a minimum of 24°C (76°F) to a maximum of 30°C (87°F) and an average of 27°C (82°F). This month also sees significant rainfall, averaging 153 mm (6.0 in) over 27 days, coupled with high humidity levels around 80%. In contrast, January offers slightly cooler temperatures, with a minimum of 21°C (70°F), an average of 25°C (77°F), and a maximum of 28°C (83°F). Rainfall is considerably less, at 57 mm (2.3 in) over 17 days, and humidity is also slightly lower at 76%. For more details, visit Luquillo weather in January.

When comparing the weather in August and February, August tends to be warmer and more humid. August has a minimum temperature of 24°C (76°F) and an average of 27°C (82°F), reaching a maximum of 30°C (87°F). In contrast, February features slightly cooler temperatures with a minimum of 21°C (70°F), averaging 24°C (76°F), and peaking at 27°C (81°F). Additionally, August experiences significantly higher precipitation, with 153 mm (6.0 in) over 27 days, compared to February's 61 mm (2.4 in) over 21 days. The humidity is also slightly higher in August at 80%, while February maintains a comfortable 75%. For more details on February weather, check out Luquillo weather in February.

In comparing the weather of August and March, August tends to be warmer overall, with average temperatures reaching 27°C (82°F) compared to March's 25°C (76°F). The maximum temperature in August can go up to 30°C (87°F), slightly higher than March's peak of 28°C (82°F). However, August also experiences significantly more rainfall, with 153 mm (6.0 in) over 27 days, while March sees only 78 mm (3.1 in) across 22 days. Additionally, humidity levels are higher in August at 80%, compared to 74% in March. For a more detailed look at March conditions, you can check Luquillo weather in March.

When comparing the weather in August and April, it’s clear that August is generally warmer and more humid. In August, temperatures range from a minimum of 24°C (76°F) to a maximum of 30°C (87°F), with an average of 27°C (82°F). In contrast, April has slightly cooler temperatures, with a minimum of 22°C (71°F) and a maximum of 29°C (84°F), averaging 25°C (77°F). Furthermore, August experiences significantly higher precipitation, with 153 mm (6.0 in) over 27 days, compared to April's 79 mm (3.1 in) over 20 days. This results in a higher humidity level in August at 80%, compared to April's 75%. For a more detailed look at April weather, check out Luquillo weather in April.

When comparing the weather in August and May, both months experience warm temperatures, though August tends to be slightly warmer overall. In August, the minimum temperature is 24°C (76°F), with an average of 27°C (82°F) and a maximum of 30°C (87°F). In contrast, May has a minimum of 23°C (73°F), an average of 26°C (79°F), and a maximum of 29°C (85°F). Precipitation is more abundant in August, with 153 mm (6.0 in) falling over 27 days, compared to May's 109 mm (4.3 in) over 26 days. Additionally, humidity levels are higher in August at 80%, compared to 75% in May, contributing to the more oppressive feel during that month. For more detailed information, you can check Luquillo weather in May.

When comparing the weather in August and June, both months exhibit similar temperature ranges, with minimums around 24°C (75-76°F), average temperatures of 27°C (80-82°F), and maximums reaching 30°C (87°F). However, August is generally wetter, receiving 153 mm (6.0 in) of precipitation over 27 days compared to June’s 110 mm (4.3 in) over 26 days. Additionally, August experiences slightly higher humidity at 80%, compared to June's 77%. Overall, while the temperatures remain consistent, August tends to be more humid and rainier than June. For more details, check out Luquillo weather in June.

In comparing the weather of July and August, both months exhibit remarkably similar temperatures, with average highs reaching 30°C (86°F in July and 87°F in August) and consistent minimums around 24°C. However, August experiences slightly more rainfall, with 153 mm of precipitation compared to July's 149 mm. Both months also share the same humidity level of 80% and experience precipitation on 27 days. For a more detailed look at the conditions in July, you can check Luquillo weather in July.

August and September share similar temperature profiles, with both months featuring minimums around 24°C (76°F) and average temperatures of 27°C (82°F). However, September experiences a slight increase in maximum temperatures, reaching up to 31°C (88°F) compared to August's 30°C (87°F). Precipitation is notably higher in September, with 195 mm (7.7 in) of rain over 28 days, contrasted with 153 mm (6.0 in) over 27 days in August. Humidity remains nearly constant, at 80% in August and dropping slightly to 79% in September. For a more detailed look at September's weather specifics, visit Luquillo weather in September.

In comparing the weather between August and October, both months exhibit similar temperature ranges, with minimums around 24°C (76°F), average temperatures at 27°C (81°F), and maximums peaking at 30°C (87°F). However, October experiences slightly more precipitation, totaling 187 mm (7.4 in) over 26 days, compared to August's 153 mm (6.0 in) across 27 days. Humidity levels are also marginally lower in October at 78%, compared to August's 80%. For more detailed information, you can explore Luquillo weather in October.

In August, the weather is warmer and more humid, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 30°C (87°F) and an average of 27°C (82°F). The month sees significant rainfall, with 153 mm (6.0 in) of precipitation occurring over 27 days. In contrast, November experiences slightly cooler temperatures, with a minimum of 23°C (74°F), an average of 26°C (80°F), and a maximum of 29°C (85°F). Precipitation in November is lower, totaling 131 mm (5.2 in) over 25 days, and the humidity is also marginally less at 78%. For more details on November weather, visit Luquillo weather in November.

In August, the weather is typically warmer with an average temperature of 27°C (82°F) and maximums reaching up to 30°C (87°F), accompanied by high humidity levels at 80%. This month also sees significant rainfall, with about 153 mm (6.0 in) of precipitation over 27 days. In contrast, December offers slightly cooler conditions, with average temperatures around 26°C (78°F) and maximums of 29°C (85°F). The precipitation decreases dramatically to 81 mm (3.2 in) over 24 days, and humidity drops to 76%. For more detailed information about December weather, you can check Luquillo weather in December.

Compare Luquillo's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Luquillo

August in Luquillo reveals a unique blend of tropical warmth and consistent moisture, distinguishing it from the drier months preceding it. With average temperatures hovering around a comfortable 27°C, the days can feel quite warm, especially when paired with the humidity that often reaches 80%. However, this month is notably wetter, with precipitation occurring on nearly every day, contributing to a total of 153 mm for the month. Such conditions create a lush, vibrant landscape, perfect for those who appreciate the beauty of nature during the rainy season. For more insights into the weather patterns and climate variations in Luquillo, check out Luquillo Climate.