August Weather in Kiawah Island, United States

Last updated: February 24, 2025

Experience August on Kiawah Island, where the weather combines warmth and humidity to create a distinctly tropical feel. With daytime temperatures reaching a maximum of 30°C (87°F) and averaging a comfortable 27°C (82°F), the island beckons beachgoers and nature lovers alike. Nights cool off slightly to a pleasant minimum of 23°C (74°F). However, be prepared for 209 mm (8.2 in) of rainfall over 20 days, making it one of the wetter months of the year. With an humidity level of 81%, the air is thick and rich, adding to the lushness of this picturesque destination. Embrace the elements and enjoy the vibrant beauty of Kiawah Island in August!

August Temperature in Kiawah Island

In August, Kiawah Island basks in the warm embrace of summer, with temperatures consistently hovering between 23°C (74°F) at night and peaking at a balmy 30°C (87°F) during the day. The average temperature of 27°C (82°F) reflects the height of the season, making it an ideal time for beachgoers and outdoor enthusiasts alike. This month carries forward July’s heat, signaling a pattern of warmth that begins in late spring and stretches through late summer. As the days grow shorter, August offers a perfect blend of sun and sultry nights, inviting visitors to enjoy the scenic beauty and recreational opportunities the island has to offer before the cooler September breezes make their entrance.

August Weather in Kiawah Island: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Kiawah Island, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec545760667378818179746357
Data source: Temperature data for Kiawah Island 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 Kiawah Island

In Kiawah Island, August stands out as the wettest month of the year, boasting a significant 209 mm (8.2 in) of rainfall over an average of 20 days. This trend of increased precipitation builds upon the more moderate totals seen in the earlier summer months, with July experiencing 159 mm (6.2 in) over 16 days. As the summer heat peaks, the atmosphere becomes charged, leading to more frequent rain showers and thunderstorms. Following August, September retains a high level of moisture, but with a dip in precipitation to 191 mm (7.5 in). Overall, the summer months showcase a clear increase in rainfall, culminating in August’s impressive totals, reflecting the region's lush, vibrant landscape during this time.

August Precipitation Trends in Kiawah Island

The chart displays monthly precipitation patterns in Kiawah Island, 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.
JanFebMarAprMayJunJulAugSepOctNovDec588164917511115920919185103137
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Kiawah Island

In Kiawah Island, the humidity levels experience subtle fluctuations throughout the year, with August standing out at 81%—a slight increase from July's 80%. This summer month ties for the second lowest humidity alongside February and March, showcasing a transition from the more humid early summer months of June and July, both at 75%. As the year progresses, humidity peaks during the winter months, particularly in December at a notable 87%. Overall, a trend emerges where the humidity begins high in winter, gradually decreases through spring and early summer, then sees a slight uptick again in late summer and fall, reflecting the warm, humid subtropical climate of this beautiful coastal destination.

August Average Humidity in Kiawah Island

This chart illustrates the average monthly humidity levels in Kiawah Island, with August's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how August's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec86%81%81%79%75%75%80%81%83%78%85%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Kiawah Island

In August, Kiawah Island experiences a UV Index rating of 11, keeping it in the extreme exposure category and signaling a burn time of only 10 minutes for unprotected skin. This pattern of heightened UV radiation, which also peaked in May, June, and July, highlights a significant trend in summer months, emphasizing the importance of sun protection during this time. Following August, the UV index shows a gradual decline in September, indicating a shift towards slightly safer exposure levels. Staying informed on the local UV index is essential for enjoying the sun responsibly. For detailed data, visit Kiawah Island UV Index.

Maximum UV Index Levels in Kiawah Island for August

The chart shows the monthly maximum UV Index (UVI) for Kiawah Island 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.
JanFebMarAprMayJunJulAugSepOctNovDec479101111111110864
Data source: Kiawah Island 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 Kiawah Island

August in Kiawah Island is a radiant time, basking in 319 hours of sunshine that reflect the summer's peak. As the warm days of July shine brightly with 344 hours, August experiences a slight dip, yet it still outshines the earlier months, such as January and February that struggle with only 192 and 220 hours, respectively. This summer-rich month straddles the transition into fall, where the vibrant sun continues to shine generously, making the most of the lingering warmth before the days start to cool in September, delivering 303 hours. Overall, the sunshine hours from late spring through summer illustrate a beautiful trend, inviting visitors to revel in Kiawah Island's sun-drenched charm.

Monthly Sunshine Duration in Kiawah Island: August Highlighted

The August sunshine duration represents the total number of hours Kiawah Island 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.
JanFebMarAprMayJunJulAugSepOctNovDec192h220h285h314h341h327h344h319h303h292h247h222h
Data source: Kiawah Island August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kiawah Island During August

When considering the likelihood of sunny weather in August on Kiawah Island, it's important to note that this month sees a relatively low chance of sunshine at only 30%. This places August among the less favorable months for clear skies, reflecting a broader trend of diminishing sunny days during the summer. The previous month, July, has a slightly better chance at 35%, while the peak for sunny weather occurs earlier in the year, such as April and May, with probabilities of 57% and 54% respectively. As autumn approaches, the likelihood of sunny days begins to rise again, with September and October boasting chances of 52% and 51%. Thus, for those planning a trip in August, it may be wise to pack a little extra sunshine in the form of outdoor activities or rain gear!

Percentage of Sunny Days in August in Kiawah Island

The chart illustrates the percentage of sunny days in Kiawah Island 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 Kiawah Island experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%40%39%57%54%29%35%30%52%51%61%46%
Data source: Kiawah Island August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kiawah Island in August

In August, Kiawah Island enjoys a delightful 13 hours of daylight, marking a gradual transition from the peak summer days of July, which boasts the longest daylight of 14 hours. This month continues to reflect the vibrant energy of summer while hinting at the approach of autumn, with daylight hours gently tapering. As the year progresses towards fall, daylight begins to dwindle, dropping to 12 hours in September and further reducing to 10 hours by November. Overall, the trend showcases a notable increase in brightness from the depths of winter, reaching a summer zenith, and gradually receding as nature prepares for a cozy, sun-drenched fall.

Average Daylight Hours in Kiawah Island for August

The chart illustrates the variation in daylight duration in Kiawah Island throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 16m11h 1m12h13h13h 50m14h 14m14h 1m13h 16m12h 19m11h 19m10h 27m10h 1m
Data source: Kiawah Island daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Kiawah Island

In Kiawah Island, the August winds paint a picture of tranquility, marking one of the calmest months of the year with an average speed of only 4.7 m/s (10 mph). This gentle breeze is a stark contrast to the brisk winds typical of the earlier months, peaking at 6.0 m/s (14 mph) in January. As summer progresses, we see a gradual decline in wind speed, with August experiencing a notable drop from July’s 5.1 m/s (11 mph). Following this lull, the winds begin to pick up again in September, hinting at a seasonal transition. The overall trend reflects a dynamic coastal climate, where the southerly gusts offer both serenity and a refreshingly gentle atmosphere, inviting visitors to relish the sun-soaked shores of Kiawah Island.

Average August Wind Speed in Kiawah Island

The chart displays monthly wind speed patterns in Kiawah Island, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.05.85.85.65.95.75.14.7 m/s4.65.05.75.4
Data source: Kiawah Island August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Kiawah Island Compares to Other Months

The weather in Kiawah Island changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Kiawah Island and find detailed weather information for every month.

August and January present starkly contrasting weather conditions. In August, temperatures are warm, with a minimum of 23°C (74°F) and an average high of 30°C (87°F), coupled with high humidity at 81%. This month also sees substantial rainfall, with 209 mm (8.2 inches) of precipitation over about 20 days. In contrast, January experiences much cooler temperatures, with a minimum of -2°C (28°F) and an average high of 20°C (69°F). Precipitation is also significantly lower at 58 mm (2.3 inches) spread across only 7 days, though humidity remains relatively high at 86%. For more details on January weather patterns, check out Kiawah Island weather in January.

August and February present stark contrasts in weather. August boasts significantly warmer temperatures, ranging from a minimum of 23°C (74°F) to a maximum of 30°C (87°F), while February sees much cooler weather, with temperatures spanning from 3°C (38°F) to a maximum of 20°C (69°F). In terms of rainfall, August is the wetter month, receiving 209 mm (8.2 in) over 20 days, compared to February's 81 mm (3.2 in) over just 10 days. Interestingly, despite these differences, both months maintain a humidity level of 81%. For a more detailed look at February's weather, visit Kiawah Island weather in February.

August and March present starkly contrasting weather conditions. August boasts warm temperatures, with a minimum of 23°C (74°F) and an average of 27°C (82°F), reaching as high as 30°C (87°F). It also sees considerable rainfall, with 209 mm (8.2 in) of precipitation spread over 20 days, maintaining a high humidity level of 81%. In contrast, March experiences much cooler temperatures, with a minimum of 3°C (38°F) and an average of 15°C (60°F), peaking at 22°C (71°F). Precipitation is significantly less during this month, totaling 64 mm (2.5 in) over just 6 days, yet humidity remains the same at 81%. For more details, you can visit Kiawah Island weather in March.

When comparing the weather in August and April, it's clear that August is significantly warmer and wetter. In August, temperatures range from a minimum of 23°C (74°F) to a maximum of 30°C (87°F), with an average of 27°C (82°F). In contrast, April has much cooler temperatures, with a minimum of 6°C (44°F), an average of 19°C (66°F), and a maximum of 26°C (79°F). Additionally, August sees much higher precipitation, with 209 mm (8.2 in) over 20 days, while April experiences only 91 mm (3.6 in) over 7 days. Humidity levels are relatively similar, with April at 79% and August slightly higher at 81%. For more detailed information on April weather, you can check Kiawah Island weather in April.

When comparing the weather in August and May, several key differences stand out. August tends to be significantly warmer, featuring minimum temperatures around 23°C (74°F) and averaging 27°C (82°F), with highs reaching up to 30°C (87°F). In contrast, May offers a cooler experience, with minimum temperatures as low as 13°C (56°F) and an average of 23°C (74°F), peaking at 29°C (85°F). Additionally, August experiences much higher rainfall, with 209 mm (8.2 in) over 20 days, compared to May’s 75 mm (2.9 in) across just 7 days. Humidity levels also rise in August, averaging 81%, whereas May maintains a slightly lower average of 75%. For a more detailed look at conditions during this beautiful spring month, check out Kiawah Island weather in May.

When comparing the weather in August and June, August tends to be warmer and more humid. The minimum temperature in August is about 23°C (74°F), compared to June's slightly cooler 18°C (66°F). Both months share a maximum temperature of around 30°C (86°F to 87°F), but August has a higher average temperature of 27°C (82°F) versus June's 26°C (79°F). In terms of precipitation, August is notably wetter, receiving 209 mm (8.2 in) of rain over 20 days, while June sees only 111 mm (4.4 in) across 16 days. The humidity levels also rise in August, averaging 81%, compared to June's 75%. For more details on June weather, check out Kiawah Island weather in June.

Comparing the weather between July and August reveals some notable similarities and differences. Both months experience similar temperature ranges, with minimums of 23°C (74°F), averages of 27°C (82°F), and maximums of 30°C (87°F). However, August sees a significant increase in precipitation, with 209 mm (8.2 in) over 20 days, compared to July's 159 mm (6.2 in) over 16 days. Additionally, while humidity levels remain relatively close at 80% in July and 81% in August, the wetter conditions in August may lead to a more oppressive feel. For those interested in a detailed overview, you can explore Kiawah Island weather in July.

August and September on Kiawah Island present a notable shift in weather patterns. August tends to be warmer, with average temperatures around 27°C (82°F) and a maximum reaching 30°C (87°F). However, it also experiences higher precipitation, with 209 mm (8.2 in) over about 20 days, contributing to an overall humidity level of 81%. In contrast, September sees a decrease in minimum temperature to 17°C (63°F) and a slight drop in average temperature to 26°C (79°F), while the maximum can reach 31°C (88°F). Precipitation in September is lower at 191 mm (7.5 in) over 13 days, accompanied by slightly higher humidity at 83%. For a detailed look at weather specifics in September, you can check Kiawah Island weather in September.

August and October present a striking contrast in weather patterns. In August, temperatures are much warmer, with minimums around 23°C (74°F) and maximums reaching 30°C (87°F), alongside high humidity levels of 81%. This month also experiences significant rainfall, with 209 mm (8.2 in) of precipitation over approximately 20 days. In contrast, October offers milder temperatures, with a minimum of 9°C (48°F) and an average of 23°C (74°F), while still reaching a maximum of 29°C (85°F). October is notably drier, with only 85 mm (3.4 in) of precipitation spread across 10 days and a slightly lower humidity of 78%. For more insights, you can check out Kiawah Island weather in October.

August and November present strikingly different weather patterns. In August, temperatures are warm, ranging from a minimum of 23°C (74°F) to a maximum of 30°C (87°F), with an average of 27°C (82°F). The month is also quite humid, with humidity levels reaching 81% and significant precipitation of 209 mm (8.2 in) spread over about 20 days. In contrast, November brings much cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 26°C (78°F), averaging 17°C (63°F). The month sees a drop in precipitation to 103 mm (4.1 in) over just 8 days, accompanied by slightly higher humidity at 85%. For a closer look at November weather specifics, check out Kiawah Island weather in November.

August and December present strikingly different weather patterns. In August, temperatures are notably warmer, with minimums around 23°C (74°F) and maximums reaching up to 30°C (87°F). The month is characterized by high humidity at 81% and significant precipitation, averaging 209 mm (8.2 in) over 20 days. In contrast, December offers a much cooler climate, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 22°C (72°F). Precipitation is considerably lower at 137 mm (5.4 in), falling over just 9 days, while humidity remains high at 87%. For more specifics on December conditions, you can check out Kiawah Island weather in December.

Compare Kiawah Island's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Kiawah Island

As August rolls in, Kiawah Island experiences a noticeable shift in weather, marked by warm temperatures averaging around 27°C (82°F), often peaking at a steamy 30°C (87°F). This month stands out with increased humidity and a significant amount of rainfall, averaging 209 mm spread over 20 days. Unlike the drier summer months, August can feel quite muggy; however, these conditions also breath life into the island's lush landscapes. For those looking to understand the broader temperature trends and precipitation patterns, visit Kiawah Island Climate for more detailed insights.