August Weather in Quepos, Costa Rica

Last updated: August 21, 2025

August in Quepos, Costa Rica is characterized by warm temperatures and notable humidity, making it a vibrant month for experiencing the lush tropical environment. With maximum temperatures reaching 28°C (83°F) and an average of 25°C (77°F), visitors can enjoy comfortable conditions. However, the month sees significant rainfall, accumulating to 914 mm (36.0 in) over 31 days, resulting in a humid atmosphere at around 82%. This blend of warmth and moisture enhances the region's natural beauty, inviting both adventure and relaxation as the rain nourishes the dense greenery that Quepos is renowned for.

August Temperature in Quepos

In August, Quepos, Costa Rica, enjoys a warm tropical climate, with temperatures hovering consistently around 22°C (72°F) for the minimum, an average of 25°C (77°F), and topping off at a comfortable 28°C (83°F). This month marks a slight dip in maximum temperatures compared to the preceding months, reflecting a transition into the rainy season. While the warmth remains pleasant for outdoor adventures or lounging by the beach, the moderately stable averages indicate a familiar rhythm characteristic of this coastal paradise. As the lush surroundings thrive, visitors can expect a refreshing breeze, enhancing the enjoyable tropical experience. Overall, August embodies the ideal blend of warmth and vitality, inviting travelers to immerse themselves in the vibrant beauty of Quepos.

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

The chart illustrates August temperature patterns in Quepos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Quepos, 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).
JanFebMarAprMayJunJulAugSepOctNovDec777878787777777777767676
Data source: Temperature data for Quepos 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 Quepos

August in Quepos, Costa Rica, marks a peak in precipitation, with an impressive 914 mm (36.0 in) of rain falling over the month, making it one of the wettest periods of the year. This heavy rainfall is complemented by a full 31 days of precipitation, highlighting the region's lush and vibrant landscapes that flourish during this time. Following closely, September and October also maintain high levels of rainfall, with 931 mm (36.7 in) and 967 mm (38.1 in) respectively, suggesting a continued trend of significant wet weather as the country transitions deeper into the rainy season. Overall, these statistics reveal a compelling pattern of moisture accumulation during the latter half of the year, contributing to Costa Rica's rich biodiversity and stunning natural beauty.

August Precipitation Trends in Quepos

The chart displays monthly precipitation patterns in Quepos, 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 Quepos, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec191102107320820696825914931967822456
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Quepos

August in Quepos, Costa Rica, is characterized by a notable humidity level of 82%, contributing to the lush and vibrant environment typical of this tropical region. As the year progresses from the drier months of January through March, where humidity hovers around the mid-60s to high-60s, the conditions gradually shift. The onset of the rainy season in June brings a significant increase, peaking in July at 85%. Following this peak, August experiences a slight decrease, yet remains comfortably humid, before tapering off into September and October when levels settle around 81% and 80% respectively. This trend showcases Quepos's dynamic climate, where the humidity plays a crucial role in the rich biodiversity and stunning landscapes that attract visitors year-round.

August Average Humidity in Quepos

This chart illustrates the average monthly humidity levels in Quepos, 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 Quepos is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec68%68%66%67%69%84%85%82%81%80%80%73%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Quepos

In August, Quepos, Costa Rica, continues to experience extreme UV exposure, with a UV Index of 13. This aligns with the pattern seen throughout the preceding and following months, where the UV Index consistently hovers between 13 and 15, indicating a high risk of harm from unprotected sun exposure. Notably, the burn time remains a swift 10 minutes, reinforcing the importance of protecting your skin if you plan to soak up the sun. As the summer nears its end, it becomes crucial to stay vigilant about sun safety. For more detailed trends and information, check out the Quepos UV Index.

Maximum UV Index Levels in Quepos for August

The chart shows the monthly maximum UV Index (UVI) for Quepos 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 Quepos typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111314141514141313131110
Data source: Quepos 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 Quepos

In August, Quepos, Costa Rica, experiences a noticeable dip in sunshine, with just 194 hours of glorious daylight. This marks a decline from the peak sunshine of 330 hours in March and a continuation of the downward trend that begins in late spring. While the sun shines less, the richness of August’s landscapes becomes apparent, with lush greenery fueled by the rainy season. September sees a slight improvement at 201 hours, but the summer months of high sunlight have clearly given way to a more temperate atmosphere. Travelers seeking a blend of adventure and tranquil beauty will find August an appealing choice, despite the shorter days.

Monthly Sunshine Duration in Quepos: August Highlighted

The August sunshine duration represents the total number of hours Quepos 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.
JanFebMarAprMayJunJulAugSepOctNovDec254h298h330h294h221h214h204h194h201h187h228h297h
Data source: Quepos August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Quepos During August

In Quepos, Costa Rica, the likelihood of sunny weather takes a significant dip in August, with only a 4% chance of clear skies. This month marks one of the peaks of the wet season, where rainfall is frequent and heavy, following the trends of July and June, which also boast low sunshine probabilities. March stands out as the sunniest month, with a promising 48% chance, while April and May see even sharper declines. By August, visitors can expect frequent showers rather than sunny days, making it less ideal for outdoor adventures. If you're planning a trip during this period, be prepared for the lush, vibrant landscapes and the refreshing rain that characterizes this tropical paradise!

Percentage of Sunny Days in August in Quepos

The chart illustrates the percentage of sunny days in Quepos 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 Quepos experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec38%41%48%17%10%9%11%4%7%11%14%30%
Data source: Quepos August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Quepos in August

In August, Quepos, Costa Rica, enjoys a delightful 12 hours of daylight, continuing a trend that begins in March and extends through September. This consistent daylight duration not only highlights the region's tropical climate but also enriches the experience for residents and visitors alike, allowing ample time for outdoor activities and exploration. As the year transitions into the later months, daylight gradually decreases to 11 hours by October, creating a gentle rhythm in nature that echoes the changing seasons. Whether you're soaking up the sun on the beach or venturing into the lush rainforests, August's vibrant days are perfect for embracing all that Quepos has to offer.

Average Daylight Hours in Quepos for August

The chart illustrates the variation in daylight duration in Quepos throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 37m11h 48m12h 3m12h 19m12h 33m12h 39m12h 35m12h 24m12h 9m11h 53m11h 40m11h 33m
Data source: Quepos daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Quepos

The August wind in Quepos, Costa Rica, offers a gentle breath of fresh air, with an average wind speed of 1.5 m/s (3 mph)—slightly higher than the consistent 1.4 m/s seen throughout most of the year. This subtle increase reflects a rhythmic ebb and flow in the coastal climate, marking the transition into the rainy season. As September settles in, the winds taper off to 1.3 m/s, while November brings a brief resurgence to 1.5 m/s, showcasing the area's dynamic nature. Overall, the winds here create a serene atmosphere, perfect for indulging in the breathtaking coastal vistas and the lush surroundings.

Average August Wind Speed in Quepos

The chart displays monthly wind speed patterns in Quepos, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.41.41.41.41.41.41.41.5 m/s1.31.41.51.3
Data source: Quepos August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Quepos Compares to Other Months

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

In comparing the weather between August and January, we see notable similarities and differences. Both months feature average temperatures around 25°C (77°F), with minimums of 22°C (72°F) and 21°C (71°F) respectively, and maximums reaching 28°C (83°F). However, August is significantly wetter, receiving 914 mm (36.0 in) of rainfall over 31 days, compared to January's 191 mm (7.5 in) over 22 days. Additionally, January experiences lower humidity at 68%, making it feel less oppressive than the more humid August, which averages 82%. For more details on January weather, you can check Quepos weather in January.

When comparing the weather in August and February, notable differences emerge in temperature, precipitation, and humidity. In August, temperatures range from a minimum of 22°C (72°F) to a maximum of 28°C (83°F), with an average of 25°C (77°F). This month typically experiences heavy rainfall, with over 914 mm (36.0 in) falling across 31 days and humidity levels reaching a high 82%. Conversely, February offers a slightly warmer temperature scale, with a minimum of 21°C (70°F) and a maximum of 29°C (84°F), while maintaining a similar average of 25°C (78°F). The precipitation in February is significantly lower at 102 mm (4.0 in), spread across 21 days, and the humidity is reduced to 68%. This leads to a more pleasant overall climate in February, making it a preferable time for outdoor activities. For more details, you can check the Quepos weather in February.

August and March present contrasting weather patterns, particularly in terms of temperature and precipitation. In August, temperatures range from a minimum of 22°C (72°F) to a maximum of 28°C (83°F), with an average of 25°C (77°F). However, it is also a notably wet month, receiving 914 mm (36.0 in) of rain over 31 days, resulting in high humidity levels of 82%. In contrast, March maintains a similar temperature range, with a minimum of 22°C (71°F) and a maximum of 29°C (85°F), but sees significantly less rainfall at 107 mm (4.2 in) over 24 days, leading to a more pleasant humidity level of 66%. For a closer look at what to expect, check out Quepos weather in March.

When comparing the weather in April and August, it’s evident that both months experience warm temperatures, but there are some notable differences. In April, the average temperature peaks at 26°C (78°F), with maximum highs reaching 29°C (84°F), making it slightly warmer than August, which averages at 25°C (77°F) and has a maximum of 28°C (83°F). However, August is significantly wetter, with a staggering 914 mm (36.0 in) of precipitation over 31 days compared to April’s 320 mm (12.6 in) over 29 days. Additionally, the humidity is higher in August at 82%, while April enjoys a more comfortable 67%. For more details on April weather, check out Quepos weather in April.

When comparing the weather in August and May, both months exhibit similar temperature patterns, with minimums around 22°C (72°F) and average temperatures hovering between 25°C (77°F) and 25°C (78°F). However, May tends to be slightly warmer with a maximum temperature of 30°C (86°F), while August peaks at 28°C (83°F). In terms of precipitation, August is notably wetter, receiving 914 mm (36.0 in) compared to May's 820 mm (32.3 in), and both months experience precipitation on 31 days. Additionally, the humidity levels are higher in August at 82%, while May enjoys a more moderate humidity of 69%. For further details on May's weather in this region, you can visit Quepos weather in May.

In comparing the weather in August and June, we find some notable similarities and differences. Both months experience average temperatures around 25°C (77°F), with June slightly cooler at an average of 25°C (78°F) compared to August’s 25°C (77°F). However, August tends to be more humid with an average humidity of 82%, slightly lower than June’s 84%. In terms of precipitation, August is significantly wetter, receiving 914 mm (36.0 in) over 31 days, compared to June's 696 mm (27.4 in) over 30 days. For more detailed information on June weather, you can visit Quepos weather in June.

In comparing the weather between July and August, both months showcase similar temperature ranges, with minimums around 22°C (72°F), average temperatures of 25°C (77°F), and maximums of 28°C (83°F) in August and 29°C (84°F) in July. However, August experiences a higher level of precipitation, totaling 914 mm (36.0 in) compared to July's 825 mm (32.5 in). Interestingly, both months have the same number of rainy days at 31, but the humidity slightly decreases from July's 85% to August's 82%, suggesting a marginally more comfortable atmosphere despite the increased rainfall. For more details, you can check Quepos weather in July.

In comparing the weather of August and September, we see similar temperature patterns, with both months featuring a minimum of 22°C (72°F), an average of 25°C (77°F), and a maximum of 28°C (83°F). However, September experiences slightly higher precipitation, totaling 931 mm (36.7 in) over 30 days, compared to August's 914 mm (36.0 in) across 31 days. Humidity levels remain consistent, with August at 82% and September at 81%. For a more detailed overview of September’s weather, you can visit Quepos weather in September.

In comparing the weather between August and October, we see that both months share similar temperature ranges, with minimums at 22°C (72°F), averages at 25°C (77°F), and maximums reaching 28°C (83°F). However, October experiences slightly more precipitation, accumulating 967 mm (38.1 in) over 30 days compared to August's 914 mm (36.0 in) over 31 days. Additionally, humidity levels are marginally lower in October at 80%, compared to 82% in August. For those looking for detailed insights into October weather, you can visit Quepos weather in October.

August and November in Quepos exhibit similar temperature ranges, with both months experiencing a minimum of 22°C (72°F), an average of 25°C (77°F), and a maximum of 28°C (83°F). However, August tends to be wetter, receiving a staggering 914 mm (36.0 in) of precipitation across 31 days, compared to November's 822 mm (32.4 in) over 30 days. Additionally, the humidity levels are slightly higher in August at 82% compared to 80% in November, contributing to a more tropical feel during the earlier month. For more specific details on November weather, visit Quepos weather in November.

In comparing the weather of August and December, both months feature similar average temperatures, maintaining a comfortable range between 21°C (71°F) and 28°C (82°F). However, August experiences significantly more rainfall, with a staggering 914 mm (36.0 in) of precipitation over 31 days, resulting in a notably higher humidity level of 82%. In contrast, December sees a considerable decrease in precipitation to 456 mm (18.0 in) across 30 days, accompanied by a lower humidity of 72%. This makes December a more pleasant time to visit, as the weather is generally drier and less humid. For more details on December weather specifically, you can visit Quepos weather in December.

Compare Quepos's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Quepos

August in Quepos is characterized by a distinctively humid atmosphere and frequent rain, making it one of the wettest months of the year. With daily precipitation almost guaranteed, this month stands out from the drier spells earlier in the year. The temperatures remain warm, averaging around 25°C, but the high humidity adds to the tropical feel, making it a vibrant time for nature. While outdoor activities may be more challenging due to the weather, the lush landscapes come alive, offering a unique experience for those willing to embrace the rain. For more details on what to expect throughout the year, visit Quepos Climate.