August Weather in Captiva, United States

Last updated: February 24, 2025

In August, Captiva, United States, experiences warm and humid weather, perfect for enjoying the stunning beach scenery. With a maximum temperature reaching 32°C (90°F) and an average of 28°C (83°F), visitors can expect consistently pleasant conditions. Minimum temperatures drop to a comfortable 25°C (77°F), offering a soothing respite in the evenings. However, this month also brings significant rainfall, with 192 mm (7.6 in) recorded over 20 days. Humidity levels hover around 80%, contributing to the tropical atmosphere. Prepare for a mix of sun and rain as you explore the natural beauty of Captiva!

August Temperature in Captiva

In August, Captiva, United States, experiences the peak of summer warmth, with minimum temperatures consistently around 25°C (77°F) and average highs reaching a balmy 32°C (90°F). This trend illustrates a gradual rise in temperature from the spring months, culminating in a vibrant summer that invites outdoor activities and beach outings. The average temperature settles at a comfortable 28°C (83°F), perfect for enjoying the sun-drenched days that characterize this time of year. As the month transitions into September, temperatures remain steady, indicating a warm end to summer before the cooler fall weather begins to take hold. This mix of warmth and humidity makes August a quintessential summer month in Captiva, ideal for vacationers looking to soak in the sun.

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

The chart illustrates August temperature patterns in Captiva, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec656870747881828282797368
Data source: Temperature data for Captiva 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 Captiva

August in Captiva marks a significant peak in precipitation, recording 192 mm (7.6 in)—the highest monthly total of the year. This downpour occurs over 20 rainy days, creating a humid and lush environment that thrives under the weight of summer storms. The trend leading into August shows a consistent increase in rainfall, with prior months like July also experiencing heavy precipitation at 164 mm (6.4 in) over 21 days. This summer pattern underscores a pronounced shift in the climate, as Captiva transitions from the drier spells of early spring and winter to the tropical, rain-soaked days of late summer. As moisture builds up in the atmosphere, August proves to be a dynamic time, reflecting both the beauty and intensity of Captiva's seasonal weather.

August Precipitation Trends in Captiva

The chart displays monthly precipitation patterns in Captiva, 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.
JanFebMarAprMayJunJulAugSepOctNovDec37332139110136164192166844358
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Captiva

In August, Captiva, United States, experiences an average humidity of 80%, which showcases a slight increase from the lower humidity levels of 65% in May and 68% in April. This rise is part of a larger trend, as the summer months—June (73%) and July (77%)—gradually transition into the more humid fall season, where levels climb back up to 83% by September. Overall, Captiva’s humidity remains relatively high year-round, fluctuating mainly between 65% and 84%, which creates a warm, tropical atmosphere perfect for beach activities.

August Average Humidity in Captiva

This chart illustrates the average monthly humidity levels in Captiva, 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.
JanFebMarAprMayJunJulAugSepOctNovDec83%80%75%68%65%73%77%80%83%83%83%84%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Captiva

In August, Captiva, United States experiences an extreme UV Index of 12, maintaining its position alongside the peak months of June and July. With a burn time of just 10 minutes, sun exposure during this period can be especially hazardous, making it crucial for residents and visitors to take protective measures. The UV index trends show a generally high to extreme exposure from January through September, underscoring the need for vigilance in sun safety. As the summer heat continues, awareness and preparation remain key to enjoying the sun while minimizing the risk of skin damage. Discover more about the local UV trends at Captiva UV Index.

Maximum UV Index Levels in Captiva for August

The chart shows the monthly maximum UV Index (UVI) for Captiva 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.
JanFebMarAprMayJunJulAugSepOctNovDec69101211121212111086
Data source: Captiva 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 Captiva

In August, Captiva basks in an impressive 328 hours of sunshine, making it a prime time for beachgoers and outdoor enthusiasts to soak up the rays. This month maintains a remarkable consistency with the previous summer peak in July, which recorded the highest sunlight at 337 hours. The sun-drenched trend continues as June and May also showcased robust totals, highlighting a vibrant summer season that invites exploration and relaxation. As autumn approaches, the gradual decline in sunshine hours begins, with September trailing closely behind at 316 hours, suggesting that summer's brilliance lingers just a little longer in this idyllic paradise.

Monthly Sunshine Duration in Captiva: August Highlighted

The August sunshine duration represents the total number of hours Captiva 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.
JanFebMarAprMayJunJulAugSepOctNovDec226h278h329h325h331h306h337h328h316h301h279h287h
Data source: Captiva August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Captiva During August

In Captiva, United States, the likelihood of sunny weather takes a noticeable dip in August, with only a 19% chance of sunshine. This decline marks the lowest point in the year, following a gradual decrease from the relatively bright conditions of spring and early summer. As temperatures rise, the transition from the lush, sunlit days of April and May—when sunny chances hover around 68% and 60%, respectively—toward the sultry days of late summer can lead to increased humidity and afternoon thunderstorms. Interestingly, this trend reflects a broader seasonal pattern where the peak sunshine months give way to a more unpredictable climate, as seen in the subsequent months of September and October, where chances begin to recover but remain significantly lower than the early summer highs.

Percentage of Sunny Days in August in Captiva

The chart illustrates the percentage of sunny days in Captiva 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 Captiva experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%62%61%68%60%20%22%19%35%50%55%65%
Data source: Captiva August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Captiva in August

In August, Captiva, United States, enjoys a generous 13 hours of daylight, mirroring the sun-kissed months of June and July. This peak daylight period is part of a gradual increase from the winter months, where January offers only 10 hours of sunlight. As the year progresses toward mid-summer, daylight steadily ascends, reaching its height during the late spring and summer months. Following August, daylight begins to taper off in September, hinting at the approach of fall. Overall, the trend reveals that Captiva basks in extended daylight during the heart of summer, creating perfect conditions for outdoor pursuits and relaxation on its beautiful beaches.

Average Daylight Hours in Captiva for August

The chart illustrates the variation in daylight duration in Captiva throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 40m11h 15m12h 1m12h 47m13h 26m13h 45m13h 35m13h12h 16m11h 29m10h 49m10h 29m
Data source: Captiva daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Captiva

In August, Captiva experiences an average wind speed of 4.3 m/s (10 mph), representing a slight uptick from the calmer July conditions. The winds are generally gentle during this time, creating a serene backdrop for beachgoers and nature enthusiasts alike. As the summer transitions into fall, August's winds are part of a broader trend—spanning the year, wind speeds tend to peak in the spring and fall months, with February showing the highest gusts at 5.6 m/s (13 mph). In contrast, the deep summer months of July and September experience the lowest average winds, indicating a tendency for calmer conditions. This rhythm of wind offers a unique charm to Captiva, contributing to its allure as a seasonal destination.

Average August Wind Speed in Captiva

The chart displays monthly wind speed patterns in Captiva, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.75.65.25.15.14.63.94.3 m/s3.34.75.13.7
Data source: Captiva August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Captiva Compares to Other Months

The weather in Captiva 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 Captiva and find detailed weather information for every month.

August and January present striking contrasts in weather conditions. August boasts warm temperatures with a minimum of 25°C (77°F) and an average of 28°C (83°F), peaking at 32°C (90°F). However, it is also characterized by significant rainfall, receiving 192 mm (7.6 in) over approximately 20 days, along with high humidity levels at 80%. In contrast, January brings much cooler temperatures, with a minimum low of 6°C (42°F), an average of 18°C (65°F), and a maximum of 25°C (77°F). The precipitation is considerably lower, totaling just 37 mm (1.4 in) over only 3 days, while humidity remains relatively high at 83%. For more detailed information, check out Captiva weather in January.

August and February present stark contrasts in weather patterns. August is typically hot and humid, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 32°C (90°F), accompanied by significant rainfall of 192 mm (7.6 inches) over about 20 days. In contrast, February enjoys milder temperatures, averaging around 20°C (68°F), with a maximum of 25°C (78°F) and a minimum of 12°C (53°F), while experiencing considerably less precipitation at only 33 mm (1.3 inches) across just 4 days. Despite the similar humidity levels of 80% in both months, the overall weather experience in August is dominated by heat and frequent rain, making February a much more pleasant time for outdoor activities. For more details on the February weather, you can check Captiva weather in February.

August and March present contrasting weather patterns. In August, temperatures soar with a minimum of 25°C (77°F) and an average high reaching 32°C (90°F), accompanied by high humidity levels at 80%. The month is quite rainy, with 192 mm (7.6 in) of precipitation spread over 20 days, making it one of the wettest times of the year. In contrast, March enjoys milder weather, with a minimum temperature of 12°C (53°F) and a comfortable average of 21°C (70°F). Rainfall is scarce in March, totaling only 21 mm (0.8 in) over just 2 days, and humidity is slightly lower at 75%. For a detailed look at the weather conditions during this month, check out Captiva weather in March.

The weather in August is significantly warmer than in April, with average temperatures reaching 28°C (83°F) compared to April's milder average of 24°C (75°F). August sees a minimum temperature of 25°C (77°F) and can peak at 32°C (90°F), while April starts cooler with a minimum of 15°C (60°F) and a maximum of 28°C (83°F). Additionally, August experiences considerable rainfall, totaling 192 mm (7.6 in) over 20 days, in stark contrast to April's 38 mm (1.5 in) of precipitation over just 6 days. The humidity level is also higher in August at 80%, compared to April's 68%. For more detailed information, you can check Captiva weather in April.

In comparing the weather of August and May, August tends to be hotter and more humid. The minimum temperature in August is 25°C (77°F), with an average of 28°C (83°F) and a maximum of 32°C (90°F). In contrast, May has a cooler range, with temperatures starting at a minimum of 20°C (68°F) and averaging 25°C (78°F), peaking at 30°C (87°F). Additionally, August experiences significantly higher precipitation, totaling 192 mm (7.6 in) over 20 days, compared to May's 110 mm (4.3 in) accumulated over just 10 days. The humidity in August stands at a steamy 80%, while May is relatively more comfortable at 65%. For specific weather details, you can check out Captiva weather in May.

In comparing the weather of August and June, we see that August tends to be slightly warmer, with average temperatures reaching 28°C (83°F) compared to June's average of 27°C (81°F). Both months experience high temperatures, but August sees a higher maximum temperature of 32°C (90°F) versus 31°C (89°F) in June. However, August is also characterized by increased rainfall, with 192 mm (7.6 in) of precipitation over 20 days, compared to June's 136 mm (5.4 in) over 16 days. Additionally, humidity levels are higher in August at 80%, while June has a more comfortable 73% humidity. For more specific insights on June weather, you can visit Captiva weather in June.

In comparing the weather patterns of July and August, both months showcase warm temperatures, with averages around 28°C (82-83°F). However, August tends to be slightly warmer, reaching a maximum of 32°C (90°F) compared to July's 31°C (88°F). Precipitation also increases in August, with 192 mm (7.6 in) over 20 days, while July experiences 164 mm (6.4 in) of rain across 21 days. Additionally, humidity rises in August to 80%, compared to July's 77%, contributing to a more tropical feel. For a more detailed look at July weather, you can visit Captiva weather in July.

August and September exhibit similar temperatures, with both months having a minimum of 25°C (77°F), an average around 28°C (82-83°F), and a maximum of 32°C (89-90°F). However, September tends to be slightly drier, experiencing 166 mm (6.5 in) of precipitation over 17 days, compared to August's 192 mm (7.6 in) over 20 days. Additionally, humidity levels are marginally higher in September at 83%, compared to 80% in August. For a more detailed look at September weather, you can explore Captiva weather in September.

In August, the weather is characterized by higher temperatures, with minimums around 25°C (77°F) and averaging 28°C (83°F), reaching maximums of 32°C (90°F). This month also sees significant rainfall, with 192 mm (7.6 in) of precipitation spread over 20 days, coupled with high humidity levels at 80%. In contrast, October experiences milder weather, with minimum temperatures dropping to 16°C (61°F) and an average of 26°C (80°F), peaking at 30°C (87°F). The precipitation is considerably less, totaling 84 mm (3.3 in) over 12 days, and the humidity remains relatively high at 83%. For more details, visit Captiva weather in October.

August and November present contrasting weather patterns. In August, the temperatures are much warmer, with a minimum of 25°C (77°F) and an average of 28°C (83°F), peaking at 32°C (90°F). The month also sees significant rainfall, with 192 mm (7.6 in) spread over 20 days, paired with high humidity at 80%. In contrast, November features much cooler temperatures, with a minimum of 14°C (57°F) and an average of 23°C (73°F), reaching a maximum of 29°C (84°F). The precipitation drops drastically to just 43 mm (1.7 in) over 5 days, while humidity remains relatively high at 83%. For more detailed insights, check out Captiva weather in November.

In August, temperatures are significantly warmer, with a minimum of 25°C (77°F) and an average of 28°C (83°F), peaking at 32°C (90°F). The humidity remains high at 80%, and the month is characterized by frequent rainfall, totaling 192 mm (7.6 in) over about 20 days. In contrast, December offers a much cooler climate, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 25°C (78°F) and an average of 20°C (69°F). Precipitation is notably lower at 58 mm (2.3 in) over just 6 days, and while humidity slightly increases to 84%, the overall feel is far less oppressive than in the summer months. For more insights, you can check Captiva weather in December.

Compare Captiva's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Captiva

August in Captiva presents a vibrant yet humid climate, marked by higher temperatures and increased rainfall compared to other months. With temperatures averaging a warm 28°C (83°F), this month is one of the hotter peaks in the year, embracing the summery feel that draws visitors to the island. However, the tropical allure comes with the reality of heavy precipitation—around 192 mm (7.6 in) over about 20 days, making it a wet month as well. The significant humidity, hovering around 80%, adds to the sultry atmosphere, shaping unique days filled with sun and sudden showers. Those looking to experience Captiva's lush greenery and vibrant landscapes will find August to be a remarkable yet challenging time, as it diverges from the drier and cooler months. For more insights on the climate, visit Captiva Climate.