August Weather in Carolina, Puerto Rico

Last updated: August 31, 2025

In August, Carolina, Puerto Rico welcomes the warmth of summer with maximum temperatures reaching 32°C (90°F) and an average of 28°C (82°F), creating a tropical paradise for visitors. The nights are comfortably warm, averaging around 24°C (76°F). While the lush landscapes thrive, this month also sees 99 mm (3.9 in) of rainfall spread over 18 days, contributing to the region's vibrant ecosystem. With humidity levels around 80%, the air is rich and invigorating, typical of the Caribbean climate, making August an ideal time to explore the beauty and charm of this coastal gem.

August Temperature in Carolina

In August, Carolina, Puerto Rico, experiences warm and inviting temperatures, making it an ideal time for outdoor activities. The average temperature hovers around 28°C (82°F), with daytime highs peaking at 32°C (90°F), mirroring the warmth of the preceding summer months. Nights remain comfortable too, with a minimum of 24°C (76°F), ensuring a pleasant atmosphere for evening strolls or beachside relaxation. This consistent warmth, characteristic of the late summer, suggests that visitors can expect a balmy tropical climate, perfect for indulging in the rich culture and breathtaking natural beauty of the region. Overall, August continues the trend of warm temperatures, inviting both locals and tourists to bask in the vibrant Puerto Rican sun.

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

The chart illustrates August temperature patterns in Carolina, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Carolina, 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).
JanFebMarAprMayJunJulAugSepOctNovDec777677788081828282817978
Data source: Temperature data for Carolina 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 Carolina

In August, Carolina, Puerto Rico experiences a notable increase in precipitation, with 99 mm (3.9 in) of rain falling over 18 days. This uptick marks a continuation of the trend observed throughout the summer months, where rainfall has gradually escalated from 68 mm (2.7 in) in June to 87 mm (3.4 in) in July. The heightened rainfall in August serves as a precursor to the significantly wetter months ahead, with September averaging a striking 173 mm (6.8 in) across 23 days. As summer transitions to fall, it’s clear that Carolina is in the midst of a particularly wet season, highlighting the region's tropical climate and its propensity for heavy rainfall during this time of year.

August Precipitation Trends in Carolina

The chart displays monthly precipitation patterns in Carolina, 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 Carolina, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec394367566468879917314510651
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Carolina

In August, Carolina, Puerto Rico experiences a peak in humidity, consistently reaching 80%—a level shared with the sultry month of July. This summer pattern highlights a trend of increasing humidity from the more moderate figures seen in earlier months, where January's 76% gently drops to a low of 74% in March before beginning its gradual rise. As the season progresses, humidity levels steadily climb, culminating in the muggy August atmosphere. Following this peak, September sees a slight decrease to 79%, signaling the onset of a transition to the relatively drier fall months, yet the 78% levels in October and November demonstrate that humidity remains a notable characteristic throughout the late summer and early autumn in Carolina.

August Average Humidity in Carolina

This chart illustrates the average monthly humidity levels in Carolina, 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 Carolina 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 Carolina

August in Carolina, Puerto Rico, sees a UV Index of 13, keeping it firmly in the extreme exposure category. This means that sun safety is paramount, with a quick burn time of just 10 minutes for unprotected skin. The trend from earlier months shows a peak in February at 11 and May at 14, but August remains consistently intense, alongside neighboring months like March and April. As summer wanes, the UV Index may maintain this high level, suggesting that residents and visitors should stay vigilant against sun exposure. For those interested in understanding the changing UV conditions throughout the year, further insights can be found at Carolina UV Index.

Maximum UV Index Levels in Carolina for August

The chart shows the monthly maximum UV Index (UVI) for Carolina 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 Carolina typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131314131213131298
Data source: Carolina 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 Carolina

August in Carolina, Puerto Rico, offers a delightful abundance of sunshine with an impressive 349 hours of bright, sunny days. This sunny month continues the trend established in the summer, where both June and July boasted over 340 hours of sunshine, making it a perfect time for beach outings and outdoor adventures. With sunshine peaking in the spring and early summer, months like May shine brightly with 356 hours, while the latter part of the year sees a gradual decline, as September and October fall to 313 hours. Even with this slight dip, Carolina remains a warm destination, ensuring ample daylight for those looking to enjoy the vibrant ambiance that the island has to offer.

Monthly Sunshine Duration in Carolina: August Highlighted

The August sunshine duration represents the total number of hours Carolina 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.
JanFebMarAprMayJunJulAugSepOctNovDec257h303h346h346h356h343h353h349h313h313h299h319h
Data source: Carolina August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Carolina During August

In August, the likelihood of sunny weather in Carolina, Puerto Rico stands at 41%, reflecting a dip in sunshine compared to the earlier months of the year. This trend follows a notable decrease from June's 24%, with July showing only a slight improvement at 43%. As the summer progresses, it appears that the chances of sunny days are less favorable, making August one of the cloudier months. Interestingly, the peak sun months present themselves earlier in the year, with February boasting a robust 70%, while the later months of the year gradually regain clearer skies, as suggested by November's 61% and December's 63%. Thus, those planning visits during August should be prepared for a mix of sun and clouds as summer transitions towards fall.

Percentage of Sunny Days in August in Carolina

The chart illustrates the percentage of sunny days in Carolina 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 Carolina experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec51%70%64%49%56%24%43%41%48%49%61%64%
Data source: Carolina August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Carolina in August

In Carolina, Puerto Rico, the daylight duration experiences a gentle rhythm throughout the year. August stands out with 12 hours of daylight, continuing a pattern established earlier in the year. The sun-drenched summer months of June and July peak at 13 hours, offering long, vibrant days perfect for outdoor adventures. As the seasons transition into fall, daylight begins to taper off slightly, returning to 12 hours in September before settling to 11 hours in the cooler winter months. This consistent daylight trend underlines the tropical charm of Carolina, where every hour is a chance to embrace the bright warmth of the sun.

Average Daylight Hours in Carolina for August

The chart illustrates the variation in daylight duration in Carolina 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: Carolina daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Carolina

In August, the winds in Carolina, Puerto Rico maintain a lively yet moderate demeanor, with an average speed of 4.6 m/s (10 mph). This marks a slight decrease from the summer peak witnessed in July at 5.3 m/s (12 mph). As we transition through the summer months, we observe a general increase in wind speeds from January's calm 4.1 m/s (9 mph) up to a notable summer high, only to gently taper off into the fall. Interestingly, September sees a drop to 3.2 m/s (7 mph), reflecting a shift as the region prepares for the quieter breezes of autumn. Overall, the August winds fit seamlessly into this rhythmic pattern, offering both a refreshing reprieve and a pleasant backdrop to the vibrant summer atmosphere of Puerto Rico.

Average August Wind Speed in Carolina

The chart displays monthly wind speed patterns in Carolina, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.15.24.53.84.44.95.34.6 m/s3.23.53.74.4
Data source: Carolina August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Carolina Compares to Other Months

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

In August, the weather tends to be warmer and more humid, with average temperatures reaching up to 28°C (82°F) and maximums hitting 32°C (90°F). The month sees significant rainfall, totaling 99 mm (3.9 in) over 18 days, contributing to a humidity level of 80%. In contrast, January offers a milder climate, with average temperatures around 25°C (77°F) and maximums of 29°C (85°F). Precipitation is considerably lower at 38 mm (1.5 in) over 12 days, and humidity is slightly reduced at 76%. For a closer look at January weather specifics, visit Carolina weather in January.

In comparing the weather between August and February, August is notably warmer with an average temperature of 28°C (82°F) and a maximum reaching 32°C (90°F), while February has a cooler average of 25°C (77°F) and a maximum of 29°C (85°F). Additionally, August sees more rainfall, with 99 mm (3.9 in) of precipitation spread over 18 days, compared to February's 43 mm (1.7 in) over 12 days. The humidity also tends to be higher in August at 80%, whereas February experiences a slightly lower humidity level of 75%. For more detailed information, you can check Carolina weather in February.

In August, the weather is typically warmer and more humid, with average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 32°C (90°F). The month sees significant rainfall, with 99 mm (3.9 in) of precipitation over about 18 days, contributing to the high humidity of 80%. In contrast, March experiences milder temperatures, with a minimum of 21°C (71°F) and a maximum of 30°C (86°F), along with less precipitation at 67 mm (2.6 in) over 14 days and a lower humidity of 74%. For more detailed insights, check out Carolina weather in March.

In comparing the weather of August and April, April tends to be slightly cooler with average temperatures hovering around 26°C (78°F), while August experiences warmer conditions with an average of 28°C (82°F). The humidity levels are somewhat elevated in August at 80%, compared to 75% in April, contributing to the more sultry feel during the summer month. Additionally, August sees more precipitation with 99 mm (3.9 in) over 18 days, whereas April has less rainfall at 56 mm (2.2 in) over just 10 days. For more detailed insights, you can visit Carolina weather in April.

When comparing the weather in August and May, we find that both months share similar high temperatures, with both reaching a maximum of 32°C (90°F). However, August tends to be slightly warmer on average, with temperatures ranging from a minimum of 24°C (76°F) to an average of 28°C (82°F), whereas May sees slightly lower temperatures, with a minimum of 23°C (73°F) and an average of 27°C (80°F). Precipitation is more frequent in August, occurring over 18 days with a total of 99 mm (3.9 in), compared to May's 64 mm (2.5 in) over 13 days. Additionally, humidity levels are higher in August at 80%, in contrast to May's 75%. For more specifics about May weather, you can check Carolina weather in May.

When comparing the weather in June and August, both months feature similar temperature ranges, with minimums around 24°C (75°F - 76°F) and maximums reaching up to 32°C (90°F). However, August tends to be slightly warmer on average at 28°C (82°F), compared to June's average of 27°C (81°F). In terms of precipitation, August is wetter, receiving 99 mm (3.9 in) over 18 days, while June sees less rainfall at 68 mm (2.7 in) over 15 days. Additionally, humidity levels are slightly higher in August at 80%, versus June's 77%, making August feel a bit more oppressive. For more detailed insights, you can check the link: Carolina weather in June.

In comparing the weather of August and July, we see notable similarities and slight differences. Both months maintain the same temperature range, with a minimum of 24°C (76°F), an average of 28°C (82°F), and a maximum of 32°C (90°F). However, August experiences slightly higher precipitation with 99 mm (3.9 in) over 18 days, compared to July's 87 mm (3.4 in) during the same number of days. Humidity levels remain consistent at 80% for both months, contributing to the tropical feel of the area. For detailed insights on July's weather, you can refer to Carolina weather in July.

August and September exhibit similar temperature patterns, with both months featuring a minimum temperature of 24°C (76°F), an average of 28°C (82°F), and a maximum of 32°C (90°F). However, September experiences a significant increase in precipitation, totaling 173 mm (6.8 in) compared to August's 99 mm (3.9 in), and the number of rainy days climbs from 18 to 23. While humidity remains relatively stable, averaging 80% in August and slightly decreasing to 79% in September, the overall weather in September tends to be wetter and more variable. For more details, you can explore Carolina weather in September.

In August, the weather is characterized by warm temperatures, with a minimum of 24°C (76°F) and an average of 28°C (82°F), reaching a maximum of 32°C (90°F). The month sees significant rainfall, with 99 mm (3.9 in) of precipitation spread across 18 days and a high humidity level of 80%.

In contrast, October experiences similar temperatures, starting at a minimum of 24°C (75°F) and averaging 27°C (81°F), while still reaching a peak of 32°C (89°F). However, October has a higher total precipitation of 145 mm (5.7 in) over 22 days, and slightly lower humidity at 78%. For more details, you can check out Carolina weather in October.

August and November both feature warm temperatures, but with some notable differences in conditions. In August, the minimum temperature is slightly higher at 24°C (76°F), with an average of 28°C (82°F) and a maximum reaching 32°C (90°F). The month sees considerable rainfall, with 99 mm (3.9 in) over 18 days and high humidity at 80%. In contrast, November offers a more moderate climate, with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 31°C (87°F), averaging 26°C (80°F). Precipitation in November is slightly higher at 106 mm (4.2 in) but occurs over fewer days (16 days), with humidity dropping slightly to 78%. For more details on the climate during this time, you can visit Carolina weather in November.

In August, temperatures are warmer, with daily averages around 28°C (82°F) and highs reaching up to 32°C (90°F), while December is slightly cooler, with an average temperature of 26°C (78°F) and maximums of 31°C (87°F). August experiences more precipitation, totaling 99 mm (3.9 in) over 18 days, compared to December's 51 mm (2.0 in) over 16 days. Humidity levels are also higher in August at 80%, whereas December sees a slightly lower humidity of 76%. For a closer look at December's weather, check out Carolina weather in December.

Compare Carolina's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Carolina

As August rolls into Carolina, it brings a unique blend of warmth and humidity that distinguishes it from the rest of the year. With average temperatures hovering around a balmy 28°C (82°F) and the maximum often reaching a scorching 32°C (90°F), the month stands out as one of the hottest. This heat is accompanied by a notable increase in humidity at 80%, which can make the warm days feel quite oppressive. Moreover, regular rainfall, totaling 99 mm (3.9 in) over about 18 days, adds an unexpected twist to the summertime routine, turning sunny afternoons into sudden showers. For a deeper understanding of how August compares with other months throughout the year, check out Carolina Climate.