Last updated: August 31, 2025
Experience the tropical warmth of Arecibo, Puerto Rico in August, where temperatures typically soar to a maximum of 32°C (90°F) and maintain an inviting average of 27°C (81°F). The nights are comfortably mild, with lows around 24°C (75°F). Visitors should be prepared for a wet atmosphere, as this month receives an average of 104 mm (4.1 in) of rainfall over 19 days, contributing to a humidity level of 80%. Embrace the lush surroundings and vibrant culture that thrive in this humid, sun-soaked paradise!
In August, Arecibo, Puerto Rico, embraces the warmth of summer with average temperatures hovering around a comfortable 27°C (81°F). This month marks a subtle continuation of the heatwave that begins in late spring, as minimums reach 24°C (75°F) and maximums peak at 32°C (90°F). The temperatures during this time reflect a consistent trend throughout the summer months, with the climate becoming increasingly tropical as the year progresses. Notably, August shares its warm signature with both July and September, offering residents and visitors alike a vibrant backdrop of sunny days and balmy nights, perfect for enjoying all that this beautiful coastal town has to offer.
In Arecibo, Puerto Rico, August marks a notable peak in precipitation, with the month receiving an average of 104 mm (4.1 in) of rain over 19 days. This increase reflects a trend observed throughout the summer months, where rainfall steadily rises from the 90 mm range recorded in July to August's heightened levels. Following the pattern of previous months, August serves as a precursor to a significantly wetter September, which experiences more than double the rain at 205 mm (8.1 in). As the year progresses, Arecibo's weather showcases a transition into the peak of the rainy season, with consistent precipitation leading into the fall, emphasizing the region’s lush and vibrant ecosystems.
In Arecibo, Puerto Rico, August marks a peak in humidity levels, reaching 80% alongside July, which also experiences similar sweltering conditions. This slight rise from the earlier months suggests a trend of increasing moisture as the summer progresses. From a low of 74% in March, humidity steadily climbs through the spring into the summer months, emphasizing the tropical climate's characteristic warmth and moisture. Interestingly, September sees a slight drop to 79%, indicating a gradual easing into the fall. Overall, Arecibo's humidity levels reflect a consistently humid environment, typical of its coastal location, where the summer months are particularly characterized by elevated humidity.
In Arecibo, Puerto Rico, the UV Index reveals a consistent pattern of intense sun exposure from January through October, with the most extreme levels peaking at 14 in May. Throughout August, the UV Index remains high at 13, categorized as extreme, which means sunburn can occur in just 10 minutes of unprotected exposure. This trend underscores the importance of sun safety measures not only in August but throughout the dry season, as similar values persist from February through October. As the seasons shift, the index declines slightly in November and December, settling into the very high category. For those planning outdoor activities, it's vital to stay informed and protected. For more detailed information, visit Arecibo UV Index.
UV Risk Categories
In the sun-drenched paradise of Arecibo, Puerto Rico, August brings a delightful continuation of summer's brilliance, boasting an impressive 353 hours of sunshine. This warmth is a part of a trend where the months from March to July shine with exceptional clarity, each surpassing the 346 hours threshold. Following the peak sunshine of May and July, August maintains a significant amount of radiant days, just slightly dipping yet still providing ample opportunity for sun-soaked adventures. As the year transitions into fall, September shows a gentle decline to 314 hours, signifying a gradual shift in the sunny rhythm of the island. Overall, August stands as a highlight in a consistently bright year, inviting travelers to bask in its golden glow.
In Arecibo, Puerto Rico, the likelihood of encountering sunny weather in August stands at 45%, which is on par with the sun exposure common in July. This figure forms part of a distinct trend where the summer months show a gradual decline in sunshine, dipping sharply to 29% in June, the lowest of the year. As the calendar progresses toward autumn, the chances of sun gradually improve, rising to 49% in September and peaking again in November at 62%. While August offers a moderate chance for sun seekers, it remains a pivotal moment on the cusp of shifting weather patterns, hinting at the transitional dynamics at play in this Caribbean paradise.
In Arecibo, Puerto Rico, August marks a transition in daylight duration, with 12 hours of sunlight—a continuation of the longer days experienced in the summer months. The year begins with a consistent 11-hour daylight in January and February, gradually increasing to peak at 13 hours from June through July. Following this sun-drenched stretch, August's daylight mirrors that of April and May, suggesting a gentle retreat from the summer solstice as the days begin to shorten once again. The shift into September sees daylight linger at 12 hours, before tapering off to 11 hours by October, echoing the shorter days of the winter months ahead. This rhythmic pattern showcases Arecibo's tropical climate, where daylight duration adapts elegantly with the changing seasons.
In Arecibo, Puerto Rico, the wind speeds during August average around 4.6 m/s (10 mph), showcasing a relatively moderate breeze that complements the warm summer atmosphere. This is a slight dip from the peak windiness experienced in July at 5.1 m/s (11 mph), yet it remains consistent with the overall trend of summer months displaying stronger winds compared to the calmer conditions seen in late spring and early autumn. As the seasons transition into fall, average wind speeds noticeably decline, particularly in September and October, where they drop to 3.2 m/s (7 mph). By the time December rolls around, the winds return to more familiar territory at 4.6 m/s, creating a rhythmic cycle that locals and visitors alike can anticipate year after year.
Weather in Arecibo varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Arecibo, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January offer contrasting weather experiences. In August, temperatures are noticeably warmer, with minimums around 24°C (75°F) and maximums reaching up to 32°C (90°F), paired with high humidity at 80%. This month also sees significant rainfall, averaging 104 mm (4.1 in) over 19 days. In comparison, January presents milder conditions, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 29°C (84°F) and lower precipitation levels of 41 mm (1.6 in) over just 11 days. The humidity in January is slightly lower at 76%. For a detailed look at January weather, you can check Arecibo weather in January.
August and February present contrasting weather conditions in Arecibo. In August, temperatures range from a minimum of 24°C (75°F) to a maximum of 32°C (90°F), with an average of 27°C (81°F). This month experiences significant precipitation, totaling 104 mm (4.1 in) over 19 days, coupled with a high humidity level of 80%. In contrast, February enjoys milder temperatures, with a minimum of 20°C (68°F) and a maximum of 30°C (86°F), averaging 24°C (76°F). Precipitation in February is relatively low at 47 mm (1.8 in) over 13 days, and humidity is slightly lower at 75%. For more detailed information on February weather, you can check Arecibo weather in February.
Comparing the weather in August and March reveals distinct differences in temperature and humidity levels. August tends to be warmer, with average temperatures reaching 27°C (81°F) and maximums peaking at 32°C (90°F), while March sees a cooler average of 24°C (76°F) and a maximum of 30°C (86°F). Additionally, August experiences higher humidity at 80% compared to March's 74%, contributing to a more sultry atmosphere. Precipitation is also more frequent in August, with 104 mm (4.1 in) falling over 19 days, compared to March, which averages 87 mm (3.4 in) over 16 days. For more detailed insights into the weather during March, you can check out Arecibo weather in March.
When comparing the weather in August to that of April, we observe distinct differences in temperature and humidity levels. August typically boasts warmer temperatures, with an average of 27°C (81°F) and highs reaching up to 32°C (90°F), whereas April's average temperature is slightly cooler at 25°C (77°F), peaking at 30°C (87°F). The humidity also tends to be higher in August at 80%, compared to April's 75%. In terms of precipitation, August receives more rainfall with 104 mm (4.1 in) over 19 days, while April records 79 mm (3.1 in) across 13 days. For more detailed information on April's climate, you can check Arecibo weather in April.
In comparing the weather between August and May, we can observe that August tends to be slightly warmer, with average temperatures ranging from 24°C (75°F) to 32°C (90°F), while May features a slightly cooler average with temperatures from 22°C (73°F) to 32°C (91°F). Both months see similar maximum temperatures, but August has marginally higher humidity at 80% compared to May's 75%. When it comes to precipitation, August experiences a bit more rain, with 104 mm (4.1 in) over 19 days, in contrast to May's 98 mm (3.9 in) across 16 days. For a deeper look at the weather specifics for May, you can visit Arecibo weather in May.
When comparing the weather in August and June, both months exhibit similar temperature patterns, with average temperatures hovering around 27°C (81°F) and maximums reaching up to 32°C (90°F) in August and 89°F in June. However, August tends to be slightly wetter, receiving 104 mm (4.1 in) of precipitation over 19 days compared to June's 90 mm (3.5 in) over 14 days. Additionally, August's humidity is a bit higher at 80%, while June maintains a comfortable 77%. For a detailed look at June's weather specifics, you can check this link: Arecibo weather in June.
When comparing the weather in August to July, we see that both months share similar temperature ranges, with minimums of 24°C (75°F), average temperatures of 27°C (81°F), and maximums reaching 32°C (90°F). However, August tends to be slightly wetter, receiving 104 mm (4.1 in) of precipitation over 19 days, compared to July's 91 mm (3.6 in) over 16 days. Despite these differences in rainfall, both months maintain a consistent humidity level of 80%. For a more detailed look at July's weather, you can check Arecibo weather in July.
Both August and September share similar temperature ranges, with minimums around 24°C (75°F), averages of 27°C (81°F), and maximums reaching 32°C (90°F). However, September tends to be wetter, with total precipitation increasing significantly to 205 mm (8.1 in) over 23 days, compared to August's 104 mm (4.1 in) across 19 days. While humidity remains high in both months at approximately 80% in August and 79% in September, the overall weather in September can feel more unsettled due to the increased rainfall. For more detailed information, you can check Arecibo weather in September.
August and October exhibit similar average temperatures, with August showing a slightly higher maximum temperature of 32°C (90°F) compared to October's 31°C (89°F). However, October experiences more rainfall, with total precipitation reaching 161 mm (6.4 in) over 23 days, compared to August’s 104 mm (4.1 in) across 19 days. Humidity levels remain relatively consistent, with August at 80% and October a bit lower at 78%. For more detailed information, you can visit Arecibo weather in October.
In August, the weather tends to be warmer, with average temperatures reaching 27°C (81°F) and maximums peaking at 32°C (90°F). The month also experiences a significant amount of rainfall, totaling 104 mm (4.1 in) over about 19 days, accompanied by high humidity levels of 80%. In contrast, November is slightly cooler, with an average temperature of 26°C (79°F) and a maximum of 31°C (88°F). Precipitation remains similar, at 109 mm (4.3 in) over 18 days, with humidity slightly lower at 78%. For more detailed information, you can check Arecibo weather in November.
In August, temperatures are generally warmer, with an average of 27°C (81°F) and maximums reaching up to 32°C (90°F), accompanied by high humidity levels of 80%. The month sees substantial rainfall, with approximately 104 mm (4.1 in) over 19 days, making it a wetter period. In contrast, December experiences slightly cooler temperatures, averaging 25°C (77°F) and peaking at 31°C (88°F), with lower humidity at 76%. Precipitation also decreases significantly to 45 mm (1.8 in) across 15 days. For more details on the specific weather conditions, you can check Arecibo weather in December.
August in Arecibo is characterized by warm temperatures and high humidity, making it distinct from the cooler months earlier in the year. With an average temperature around a balmy 27°C (81°F) and daily highs reaching up to 32°C (90°F), this month often feels particularly sultry. Additionally, the prevalence of frequent rain, with precipitation occurring on 19 days and totaling over 100 mm, adds a touch of tropical unpredictability. Such conditions emphasize the transition into the wetter season, contrasting sharply with the drier spell of April and May. For more insights on how August weather fits into the overall climate patterns, visit Arecibo Climate.