Last updated: August 31, 2025
August in Cabo Rojo, Puerto Rico welcomes sun-seekers with a maximum temperature reaching 30°C (86°F) and a balmy average of 28°C (83°F), creating an inviting tropical atmosphere. While temperatures are warm, humidity levels linger around 80%, enhancing that classic island feel. However, visitors should be prepared for occasional showers, as the month sees around 70 mm (2.8 in) of rainfall across approximately 13 days. Embrace the vibrant summer vibes of Cabo Rojo, where the blend of warmth and moisture paints a quintessential tropical experience.
In Cabo Rojo, Puerto Rico, August brings warm and tropical weather, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 30°C (86°F). The average temperature during the month hovers around 28°C (83°F), mirroring the warmth found in both July and September, creating a consistent summer vibe. As the summer progresses, these balmy conditions not only invite beachgoers to soak in the sun but also highlight a gentle rise from earlier in the year, where average temperatures were slightly cooler. Whether you're lounging on the beach or exploring the vibrant local culture, August's inviting warmth makes it an ideal time to experience the charm of Cabo Rojo.
In August, Cabo Rojo, Puerto Rico, experiences a notable increase in precipitation, reaching 70 mm (2.8 in), making it one of the wettest months of the year. This spike in rainfall is accompanied by an uptick in rainy days, totaling 13 this month. Following July's significant downpour of 63 mm (2.5 in) over 12 days, August sets the stage for the wettest months. As summer transitions toward fall, precipitation levels continue to rise, with September expected to deliver an even higher total of 122 mm (4.8 in) over 18 days. This pattern indicates a seasonal shift, where late summer brings increased humidity and frequent showers, painting a vivid picture of Cabo Rojo's tropical climate.
In August, Cabo Rojo, Puerto Rico, experiences a humidity level of 80%, which is slightly lower than the peak of 81% seen in July. This time of year marks the transition from the summer's peak humidity to the gradual decrease that begins in September, with humidity levels dropping to 79%. Notably, the humidity in August follows a general trend observed throughout the year, where levels hover around the mid-70s during the cooler months and steadily rise over the summer, peaking in the late summer months. This consistent high humidity contributes to the region's lush vegetation and vibrant natural beauty, making Cabo Rojo a captivating destination amidst the tropical climate.
In August, Cabo Rojo, Puerto Rico experiences a highly intense UV Index of 13, categorized as extreme. This aligns with the prevailing trend seen from May through September, where the UV levels consistently hover around 13-14, requiring just 10 minutes of exposure before skin damage occurs. It's crucial for sun-seekers to remain vigilant during these months, employing protective measures to mitigate the risk of sunburn. As summer reaches its peak, the urgency for sun safety remains paramount. For more detailed information, check out the Cabo Rojo UV Index.
UV Risk Categories
In Cabo Rojo, Puerto Rico, August continues the trend of abundant sunshine that characterizes the summer months, offering a remarkable 353 hours of glorious sunlight. Following a peak in May, where the sun graces the region for 363 hours, the hours slightly taper off during the subsequent months, yet remain impressively high. This consistent stretch of sunny days not only supports outdoor adventures but also paints a vibrant backdrop for relaxation. As the year transitions into September with 318 hours of sunshine, the lingering warmth and brightness of August can still be felt, making it an ideal month for visitors seeking to bask in the tropical glow of this stunning locale.
In Cabo Rojo, Puerto Rico, August brings a 50% chance of sunny weather, making it a toss-up for those hoping to soak up the sun. This month sits at a balanced midpoint in a yearly cycle where February shines the brightest with an impressive 82% likelihood of clear skies, while June experiences the least sunshine with just 34%. August's chances mirror the slightly unpredictable summer months of July and June, where the sun's rays can be elusive. Interestingly, as the year progresses towards its peak in sunny possibilities—notably in February and November—August serves as a reminder that while summer may be on the decline, there's still a decent opportunity for enjoying those warm, sunny days.
In Cabo Rojo, Puerto Rico, the daylight duration exhibits a fascinating rhythm throughout the year. Starting the year with a steady 11 hours from January to February, the days begin to elongate as spring approaches, peaking at 13 hours during the sun-soaked months of June and July. As August arrives, the daylight gently recedes to 12 hours, offering a balance of sun and shade as summer transitions into fall. This pattern continues into September, before gradually tapering back to 11 hours by November and December. The shift in daylight not only marks the passing of seasons but also enriches the vibrant atmosphere of Cabo Rojo, inviting both locals and visitors to embrace the beauty of each time of year.
In Cabo Rojo, Puerto Rico, the winds in August offer a delightful break, with an average speed of 4.6 m/s (10 mph), mirroring the gentler breezes of January and April. As summer unfolds, the wind tends to pick up slightly in July, reaching 5.3 m/s (12 mph), before tapering off in late summer months like August and September. This trend indicates a shift from the more invigorating winds of mid-summer to a softer embrace, perfect for leisurely beach days. Interestingly, while August's winds are lower compared to the peak in July, they carry a comforting warmth that complements the island's tropical ambiance, offering a serene backdrop for both relaxation and adventure before the return of the stronger trade winds in the fall.
Weather in Cabo Rojo varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Cabo Rojo, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between August and January, August tends to be warmer and more humid. The average temperature in August is around 28°C (83°F) with maximums reaching 30°C (86°F), while January has milder temperatures, averaging 26°C (78°F) and peaking at 28°C (83°F). Precipitation is also notably higher in August, with about 70 mm (2.8 in) over 13 days, compared to January’s much drier conditions, which see only 15 mm (0.6 in) across 3 days. The humidity level remains relatively high in both months, with August at 80% and January at 76%. For more details about January weather in Cabo Rojo, you can visit Cabo Rojo weather in January.
In August, the weather is typically warmer and more humid than in February, with average temperatures ranging from a minimum of 25°C (77°F) to a maximum of 30°C (86°F). The month sees significant rainfall, with around 70 mm (2.8 in) of precipitation over approximately 13 days, resulting in a humidity level of 80%. In contrast, February enjoys slightly cooler temperatures, averaging from a minimum of 23°C (73°F) to a maximum of 28°C (82°F). This month experiences much lower rainfall, with only 17 mm (0.7 in) over about 6 days, and a relative humidity of 75%. For a detailed look at the weather conditions in February, check out Cabo Rojo weather in February.
In comparing the weather of August and March, August tends to be noticeably warmer and more humid. The average temperature in August reaches around 28°C (83°F), with a maximum of 30°C (86°F), while in March, the average is slightly cooler at 25°C (78°F) and peaks at 28°C (82°F). Additionally, August experiences more precipitation, totaling 70 mm (2.8 in) across 13 days of rainfall, compared to March's 30 mm (1.2 in) over just 7 rainy days. The humidity also fluctuates, sitting at 80% in August versus 75% in March, making August feel more tropical and sultry. For more details about the weather in March, you can check Cabo Rojo weather in March.
In August, the weather tends to be warmer and more humid compared to April, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 30°C (86°F), and an average temperature of 28°C (83°F). August also experiences more precipitation, averaging 70 mm (2.8 in) over 13 days, which contributes to the overall humidity of 80%. In contrast, April has slightly cooler temperatures with a minimum of 23°C (74°F) and a maximum of 28°C (83°F), along with lower precipitation levels of 30 mm (1.2 in) spread over 8 days, resulting in a humidity of 76%. For more details about April weather, check this link: Cabo Rojo weather in April.
In comparing the weather between August and May, August tends to be slightly warmer, with temperatures averaging around 28°C (83°F) compared to May's 27°C (80°F). Both months experience high humidity levels, but August is notably more humid at 80% versus May's 76%. While May has less rainfall, totaling 33 mm (1.3 in) over 7 days, August is much wetter with 70 mm (2.8 in) spread out over 13 days. For more detailed information, you can check out Cabo Rojo weather in May.
In comparing the weather between August and June, both months experience warm temperatures, with August having slightly higher averages. In August, the minimum temperature is 25°C (77°F), with an average of 28°C (83°F) and a maximum of 30°C (86°F). In contrast, June shows a similar temperature range, with a minimum of 25°C (77°F), an average of 27°C (82°F), and the same maximum of 30°C (86°F). However, August is notably wetter, receiving 70 mm (2.8 in) of precipitation over 13 days, compared to June's 31 mm (1.2 in) over 9 days. Humidity levels are also slightly higher in August at 80%, while June registers at 78%. For a more detailed look at June weather, visit Cabo Rojo weather in June.
In comparing the weather between July and August, the temperatures remain quite similar, with both months experiencing a minimum of 25°C (77°F), an average of around 28°C (82°F - 83°F), and a maximum of 30°C (86°F - 87°F). However, August sees slightly more precipitation, totaling 70 mm (2.8 in) over 13 days, compared to July's 63 mm (2.5 in) over 12 days. Humidity levels are also comparable, with August at 80% and July at 81%, making both months feel warm and humid. For detailed information on July's weather, you can visit Cabo Rojo weather in July.
In Cabo Rojo, August and September share similar temperature ranges, with both months showcasing minimum temperatures of 25°C (77°F), average temperatures around 28°C (82-83°F), and maximum temperatures peaking at 30°C (86°F). However, September tends to be rainier, receiving 122 mm (4.8 in) of precipitation over 18 days compared to August's 70 mm (2.8 in) over 13 days. Humidity levels remain relatively stable, with August at 80% and September slightly lower at 79%. For more details on the weather patterns in September, check out Cabo Rojo weather in September.
August and October present similar temperature ranges, with both months sharing a minimum of 25°C (77°F), an average of 28°C (82-83°F), and a maximum of 30°C (86°F). However, October experiences slightly higher precipitation levels at 74 mm (2.9 in) over 16 days, compared to August’s 70 mm (2.8 in) over 13 days. Additionally, humidity levels in October are marginally lower at 78%, while August averages around 80%. These subtle differences suggest a slightly wetter atmosphere in October, despite the temperatures remaining consistent. For a closer look at October's specific climate, check out Cabo Rojo weather in October.
In August, the weather is characterized by slightly warmer temperatures, with a minimum of 25°C (77°F), an average of 28°C (83°F), and a maximum of 30°C (86°F). It experiences around 70 mm (2.8 in) of precipitation over 13 days, with humidity levels reaching 80%. In contrast, November sees a slight drop in temperatures, maintaining a minimum of 25°C (77°F), but averaging 27°C (81°F) and maxing out at 29°C (85°F). Precipitation increases slightly to 75 mm (3.0 in) across the same number of rainy days, with humidity dipping to 78%. For more detailed insights, check out Cabo Rojo weather in November.
In comparing the weather between August and December, August offers warmer temperatures with a minimum of 25°C (77°F) and an average of 28°C (83°F), peaking at 30°C (86°F). This month also experiences higher precipitation, totaling 70 mm (2.8 in) over 13 days, with humidity levels around 80%. In contrast, December features slightly cooler temperatures, with a minimum of 24°C (75°F) and an average of 26°C (80°F), reaching a maximum of 29°C (84°F). Additionally, December sees significantly less rainfall at 21 mm (0.8 in) over just 3 days and slightly lower humidity levels at 77%. For more detailed information, you can check Cabo Rojo weather in December.
In August, Cabo Rojo experiences a warm and humid climate, with temperatures typically hovering around a comfortable 28°C (83°F). This month stands out due to a noticeable increase in precipitation, with rain on about 13 days, leading to a total of 70 mm of rainfall. Compared to other months, August brings a higher level of humidity, averaging around 80%, which can make the warm temperatures feel a bit more intense. While the heat remains consistent year-round, the combination of summer showers and increased moisture in the air gives August its unique tropical character. For a deeper look into what to expect throughout the year, check out Cabo Rojo Climate.