August Weather in Fajardo, Puerto Rico

Last updated: August 31, 2025

Experience the tropical allure of Fajardo, Puerto Rico in August, where temperatures soar to a maximum of 30°C (87°F) and maintain a pleasant average of 27°C (82°F). With a refreshing minimum of 24°C (76°F), the climate remains inviting throughout the month. However, be prepared for frequent showers, as precipitation totals reach 153 mm (6.0 in) over 27 days, contributing to the lush scenery. The air carries an average humidity of 80%, enhancing the island's vibrant atmosphere. Come soak in the warm, humid embrace of Fajardo's summer weather!

August Temperature in Fajardo

August in Fajardo, Puerto Rico, offers a tropical embrace, with temperatures consistently warm and inviting. The month starts with a minimum of 24°C (76°F), ensuring that even the nights are pleasantly mild. As the days progress, the average temperature hovers around 27°C (82°F), striking a perfect balance between comfort and heat. With maximum temperatures reaching up to 30°C (87°F), visitors can expect a delightful, sun-soaked experience, ideal for beach outings and outdoor adventures. This slight warming trend from July signals the peak of summer, as the vibrant energy of Fajardo aligns with its balmy atmosphere, making August a fantastic time to soak in the beauty and culture of this stunning coastal paradise.

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

The chart illustrates August temperature patterns in Fajardo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fajardo, 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).
JanFebMarAprMayJunJulAugSepOctNovDec767676777980818181817978
Data source: Temperature data for Fajardo 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 Fajardo

In August, Fajardo, Puerto Rico experiences a notable peak in precipitation, with an average of 153 mm (about 6.0 inches) of rain falling over 27 days. This marks a slight increase compared to July, which already sees substantial rainfall at 149 mm (5.9 in). This upward trend continues into September, where the precipitation escalates even further to 195 mm (7.7 in), indicating the wettest month of the year. Throughout the summer months, a pattern emerges as rainfall progressively intensifies, suggesting a dynamic climatic rhythm that characterizes this tropical paradise. The frequent, albeit lighter showers earlier in the year transition to more substantial downpours, reinforcing the idea that August is not just a month of summer warmth but also a vibrant climactic crescendo in Fajardo’s yearly rainfall cycle.

August Precipitation Trends in Fajardo

The chart displays monthly precipitation patterns in Fajardo, 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 Fajardo, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec5761787910911014915319618713281
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Fajardo

In August, Fajardo, Puerto Rico experiences a notable humidity level of 80%, mirroring the slightly sticky conditions of July. This summer peak reflects a pattern where humidity tends to rise gradually from the milder months of January through April, remaining consistently above 75% during the warmer season. Following August, humidity begins its gentle decline into September at 79%, indicating a slight easing as the region transitions towards fall. This consistent humidity throughout the year plays a vital role in Fajardo's lush tropical environment, enhancing its vibrant foliage and captivating allure.

August Average Humidity in Fajardo

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

In August, Fajardo, Puerto Rico experiences a notably high UV Index of 13, falling within the extreme exposure category, which means that the risk of harm from unprotected sun exposure is significant. With a burn time of just 10 minutes under these conditions, residents and visitors alike should take precautions to protect their skin. This trend of consistently high UV levels spans the summer months, peaking further in September with a UV Index of 14. The pattern demonstrates the region's intense sun exposure from January through to September, gradually decreasing into the fall and winter months. For more information on daily UV levels and safety tips, check out Fajardo UV Index.

Maximum UV Index Levels in Fajardo for August

The chart shows the monthly maximum UV Index (UVI) for Fajardo 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 Fajardo typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131313131213141298
Data source: Fajardo 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 Fajardo

Fajardo, Puerto Rico, basks in a generous 349 hours of sunshine during August, a time when summer days are still vibrant and lively. This month reflects a harmonious continuation of the sunny weather trend established earlier in the year, with May leading the pack at 357 hours and July closely following. Interestingly, while August maintains an impressive tally, the hours of sunlight begin to taper off into September, which boasts 318 hours. Overall, the sunshine data reveals a delightful pattern: from the bright highs of spring and summer to the gradual shifts towards milder autumn days, Fajardo’s sunlit embrace remains a captivating draw throughout the year.

Monthly Sunshine Duration in Fajardo: August Highlighted

The August sunshine duration represents the total number of hours Fajardo 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.
JanFebMarAprMayJunJulAugSepOctNovDec258h302h348h348h357h344h354h349h318h316h302h320h
Data source: Fajardo August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Fajardo During August

In Fajardo, Puerto Rico, the likelihood of sunny weather in August reflects a noticeable dip, with only a 37% chance of sunshine. This trend marks a gradual decline from the lively summer months, particularly when compared to June and July, which see even lower probabilities of clear skies at 20% and 40% respectively. As summer gives way to early fall, months like September and October offer a slight improvement, boasting chances of sun at 46%. Overall, August can be characterized as a month of variable weather, where sun-seekers may want to brace for a mix of cloudy days and occasional sunny spells.

Percentage of Sunny Days in August in Fajardo

The chart illustrates the percentage of sunny days in Fajardo 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 Fajardo experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec50%65%61%44%51%20%40%37%46%46%57%59%
Data source: Fajardo August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Fajardo in August

In Fajardo, Puerto Rico, the pattern of daylight duration reveals a captivating rhythm throughout the year. Starting strong in March and peaking in June and July with 13 hours of sunlight, the summer months bask in extended daylight, perfect for enjoying the outdoors. As August arrives, daylight gently recedes to 12 hours, signaling a transition towards fall. This trend continues into September, where daylight remains steady before tapering off to 11 hours by October, mirroring the earlier months of the year. Overall, Fajardo experiences a consistent daylight cycle, with charming variations that reflect the changing seasons, inviting residents and visitors alike to revel in the sun’s warm embrace.

Average Daylight Hours in Fajardo for August

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

August Winds in Fajardo

In Fajardo, Puerto Rico, the month of August showcases an average wind speed of 4.4 m/s (10 mph), maintaining a pattern that peaks in the summer months. Following a gentle climb from 4.2 m/s in May to 5.0 m/s in July, the winds in August show a slight dip, yet still offer a pleasant and refreshing breeze. This trend hints at the stability of summer weather in the region before the winds ease further into the fall, where speeds average around 3.2 m/s in September. Overall, August serves as a sweet spot for moderate winds, perfectly complementing the island's vibrant summer atmosphere.

Average August Wind Speed in Fajardo

The chart displays monthly wind speed patterns in Fajardo, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.05.04.43.74.24.75.04.4 m/s3.23.43.64.4
Data source: Fajardo August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Fajardo Compares to Other Months

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

In August, the weather tends to be hotter and more humid, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 30°C (87°F) and an average of 27°C (82°F). This month also sees considerable rainfall, with 153 mm (6.0 in) spread over 27 days, resulting in high humidity levels averaging around 80%. In contrast, January features milder temperatures, with a minimum of 21°C (70°F), an average of 25°C (77°F), and a maximum of 28°C (83°F). Rainfall is significantly less, with only 57 mm (2.3 in) occurring over 17 days, leading to slightly lower humidity levels at 76%. For a detailed look at the winter weather patterns, check out Fajardo weather in January.

When comparing the weather in August and February, August typically experiences warmer temperatures, with an average of 27°C (82°F) and highs reaching 30°C (87°F). In contrast, February's average temperature is slightly cooler at 24°C (76°F), with a maximum of 27°C (81°F). August also brings a significant amount of rainfall, accumulating 153 mm (6.0 in) over 27 days, while February sees much less precipitation at 61 mm (2.4 in) over 21 days. Additionally, humidity levels are higher in August at 80%, compared to 75% in February, making August feel a bit more oppressive. For a detailed view of February weather specifics, you can check Fajardo weather in February.

In comparing the weather of August and March, August is generally warmer and more humid. With an average temperature of 27°C (82°F) and a maximum reaching up to 30°C (87°F), it offers a hot and steamy climate, contrasted by March's cooler temperatures, averaging 25°C (76°F) with a peak of 28°C (82°F). While both months experience substantial rainfall, August sees higher precipitation at 153 mm (6.0 in) over 27 days, compared to March's 78 mm (3.1 in) across 22 days. Additionally, humidity levels are notably higher in August at 80%, while March maintains a more comfortable 74%. For a closer look at March weather specifics, you can check out Fajardo weather in March.

When comparing the weather in August to that of April, several notable differences emerge. August tends to be warmer, with average temperatures reaching 27°C (82°F) and maximums peaking at 30°C (87°F), compared to April's averages of 25°C (77°F) and maximums of 29°C (84°F). Additionally, August experiences higher humidity levels at 80%, while April has a slightly lower humidity of 75%. Precipitation is more abundant in August as well, with 153 mm (6.0 in) over 27 days, compared to April's 79 mm (3.1 in) over 20 days. For a detailed look at Fajardo's April weather, you can visit Fajardo weather in April.

In comparing the weather of August and May, we see that August is slightly warmer, with average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 30°C (87°F), while May has a narrower range, with minimums of 23°C (73°F) and maximums of 29°C (85°F). Both months experience high humidity, but August is notably more humid at 80% compared to May's 75%. Precipitation is also higher in August, totaling 153 mm (6.0 in) over 27 days, compared to May's 109 mm (4.3 in) over 26 days. For more detailed information on May weather, you can refer to Fajardo weather in May.

When comparing the weather in August and June, we see that both months maintain similar temperature ranges, with minimums around 24°C (75-76°F), average temperatures of about 27°C (80-82°F), and maximums reaching up to 30°C (87°F). However, August is notably wetter, receiving 153 mm (6.0 in) of precipitation over 27 days, while June has less rainfall at 110 mm (4.3 in) over 26 days. Additionally, humidity levels are slightly higher in August at 80%, compared to 77% in June. For a more detailed look at June weather in this region, check out Fajardo weather in June.

In comparing the weather of August and July, it is evident that both months experience similar temperature ranges. August sees a minimum temperature of 24°C (76°F), with an average of 27°C (82°F) and a maximum of 30°C (87°F), which closely mirrors July's figures of a minimum of 24°C (75°F), an average of 27°C (81°F), and a maximum of 30°C (86°F). Both months also report high levels of humidity at 80%. However, August has slightly higher precipitation, with 153 mm (6.0 in) recorded over 27 days, compared to July’s 149 mm (5.9 in) over the same number of days. For more detailed insights into July's weather, you can visit Fajardo weather in July.

In August, temperatures typically range from a minimum of 24°C (76°F) to a maximum of 30°C (87°F), with an average temperature of 27°C (82°F). The month is characterized by significant rainfall, accumulating 153 mm (6.0 in) over 27 days, while humidity levels remain high at 80%. In contrast, September sees a slightly warmer maximum temperature of 31°C (88°F), while maintaining a similar minimum and average temperature. Rainfall increases to 195 mm (7.7 in) across 28 days, and humidity remains comparable at 79%. For more detailed insights, you can check Fajardo weather in September.

In comparing the weather between August and October, both months share a similar temperature range, with minimums around 24°C (76°F), averages at 27°C (81°F), and maximums peaking at 30°C (87°F). However, October tends to be slightly wetter, with total precipitation reaching 187 mm (7.4 in) over 26 days, compared to August's 153 mm (6.0 in) over 27 days. The humidity is also marginally lower in October at 78%, versus August's 80%, contributing to a slightly more comfortable atmosphere. For a more detailed insight into the climate during this time, you can check Fajardo weather in October.

When comparing the weather in August and November, we can see some notable differences. August typically features slightly warmer temperatures with a minimum of 24°C (76°F) and an average of 27°C (82°F), reaching a maximum of 30°C (87°F). In contrast, November sees a slight dip, with a minimum of 23°C (74°F) and an average of 26°C (80°F), peaking at 29°C (85°F). Precipitation is also prevalent, with August receiving 153 mm (6.0 in) over 27 days, while November has a bit less rainfall at 131 mm (5.2 in) over 25 days. Additionally, humidity levels are slightly lower in November, averaging 78% compared to August's 80%. For more details on the weather during this month, you can check out Fajardo weather in November.

August and December offer distinct weather experiences, despite their similar temperature ranges. In August, the average temperature peaks at around 27°C (82°F), with maximums reaching 30°C (87°F), accompanied by high humidity levels of 80%. The month also sees significant rainfall, with 153 mm (6.0 in) spread across 27 days, making it one of the wetter months. In contrast, December features slightly cooler temperatures, with an average of 26°C (78°F) and max temperatures of 29°C (85°F). Precipitation is notably reduced to 81 mm (3.2 in) over 24 days, and humidity drops to 76%. For more details, you can check Fajardo weather in December.

Compare Fajardo's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Fajardo

In August, Fajardo experiences a distinctive blend of warmth and humidity that sets it apart from other months. With average temperatures hovering around a comfortable 27°C (82°F), the heat can be felt, but it’s the substantial precipitation—often totaling 153 mm (6.0 in) over 27 days—that truly characterizes this time of year. The 80% humidity adds to the tropical feel, making it a period of lush greenery and vibrant nature. While the summer sun shines bright, be prepared for regular showers that provide a refreshing contrast to the heat. For a detailed look at Fajardo's climate patterns throughout the year, check out Fajardo Climate.