August Weather in Cruz Bay, Virgin Islands (U.S.)

Last updated: August 28, 2025

In Cruz Bay, Virgin Islands (U.S.), August brings warm and inviting weather, with average temperatures hovering around 28°C (82°F), peaking at a maximum of 29°C (85°F) and settling at a pleasant minimum of 25°C (77°F). While visitors can revel in the tropical warmth, they should prepare for a fair amount of precipitation, accumulating 113 mm (4.4 in) over approximately 17 days of the month. With humidity levels reaching 82%, the atmosphere feels distinctly tropical, making it an ideal time for both relaxation and adventure. Whether you're exploring the stunning beaches or enjoying the lush landscapes, August offers a vibrant climate that showcases the beauty of Cruz Bay.

August Temperature in Cruz Bay

In August, Cruz Bay, U.S. Virgin Islands, embraces the warmth of summer with temperatures that signal a tropical paradise. The month showcases a delightful minimum of 25°C (77°F) and an inviting average of 28°C (82°F), reaching a comfortable peak of 29°C (85°F). This slight uptick reflects a trend of gradually increasing temperatures, as summer comes to its zenith; July's averages only nudged slightly lower with maxes at the same high. Both August and September maintain this delightful warmth, ensuring that visitors can enjoy sun-soaked days and balmy evenings, making it an ideal time for beach lovers and outdoor adventurers alike.

August Weather in Cruz Bay: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Cruz Bay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cruz Bay, 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).
JanFebMarAprMayJunJulAugSepOctNovDec777777787981818282818079
Data source: Temperature data for Cruz Bay 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 Cruz Bay

In Cruz Bay, Virgin Islands, August marks a significant peak in precipitation, with an impressive 113 mm (4.4 in) recorded, a notable increase from the 93 mm (3.7 in) seen in July. This surge is reflected in the 17 days of rainfall, which is slightly lower than July's 19 days but still contributes to a robust wet season leading into September, historically the wettest month. Following the monthly trend, where rainfall has generally escalated since May, August's downpours pave the way for September's anticipated average of 157 mm (6.2 in), highlighting the region's transition into its rainiest period of the year. This pattern emphasizes the tropical climate's variability, with August standing out for both its intensity and duration of rainfall.

August Precipitation Trends in Cruz Bay

The chart displays monthly precipitation patterns in Cruz Bay, 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 Cruz Bay, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec3332373960619311315713310651
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Cruz Bay

In Cruz Bay, U.S. Virgin Islands, August brings a peak in humidity, averaging 82%—a trend that mirrors the rise seen throughout the summer months. From a humble 75% in March, humidity steadily climbs, reaching its crescendo alongside July's warm embrace. As the summer progresses, residents and visitors alike experience a palpable mugginess that doesn’t wane until September, where it dips to 80%. This pattern highlights the tropical climate's consistent warmth and moisture, making August a quintessential month for basking in the lush beauty of the islands, albeit with that characteristic island humidity.

August Average Humidity in Cruz Bay

This chart illustrates the average monthly humidity levels in Cruz Bay, 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 Cruz Bay is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%76%77%78%79%82%82%80%79%79%77%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Cruz Bay

In Cruz Bay, U.S. Virgin Islands, August features an extreme UV Index of 13, maintaining the high intensity seen from April through July. This trend of elevated UV exposure, which necessitates a burn time of just 10 minutes, emphasizes the importance of sun safety during these summer months. Interestingly, the UV Index escalates even further in September, reaching 14, underscoring the persisting need for vigilance against sunburn throughout the late summer. Notably, the year begins and ends with slightly lower UV indices of 9 in January and November, reminding visitors that even during peak months, protecting skin is crucial. For those looking to stay informed about UV levels, more detailed information can be found at Cruz Bay UV Index.

Maximum UV Index Levels in Cruz Bay for August

The chart shows the monthly maximum UV Index (UVI) for Cruz Bay 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 Cruz Bay typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131313131313141298
Data source: Cruz Bay 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 Cruz Bay

August in Cruz Bay, Virgin Islands, offers a delightful 347 hours of sunshine, continuing the trend of abundant sunlight enjoyed during the summer months. As the skies remain mostly clear, visitors can bask in the warm rays that peaked in May with 358 hours. Following a robust July, August still maintains a generous supply of sunlight, though it does see a slight dip as the year transitions toward fall. This subtle decline sets the stage for September's 320 hours, making August an ideal time for beachgoers and outdoor enthusiasts looking to soak up the last vestiges of summer. Whether you are relaxing on sandy shores or exploring the vibrant local culture, August in Cruz Bay invites you to savor its sun-kissed days.

Monthly Sunshine Duration in Cruz Bay: August Highlighted

The August sunshine duration represents the total number of hours Cruz Bay 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.
JanFebMarAprMayJunJulAugSepOctNovDec258h299h350h348h358h345h355h347h320h316h304h321h
Data source: Cruz Bay August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cruz Bay During August

In Cruz Bay, Virgin Islands, August enjoys about a 46% chance of sunny weather, reflecting a slight dip compared to the preceding months of June and July, which see chances of just 23% and 48% respectively. As we transition from the sunnier months of early summer, it's clear that the likelihood of clear skies begins to wane, making August a period where unpredictable weather can blend occasional sunshine with tropical showers. Interestingly, this trend shifts in September as the chance of sun rises again to 58%, signaling that while August might be less reliable for sun-seekers, the vibrant beauty of Cruz Bay still holds its allure amidst the varying weather patterns.

Percentage of Sunny Days in August in Cruz Bay

The chart illustrates the percentage of sunny days in Cruz Bay 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 Cruz Bay experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec57%73%72%50%63%24%48%46%58%55%67%70%
Data source: Cruz Bay August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cruz Bay in August

In Cruz Bay, Virgin Islands, August offers a delightful balance of daylight, boasting 12 hours of sunlight that captures the essence of summer. This month stands out as a transition point, as daylight peaks in June and July with 13 hours but begins to gently retreat in the following months. Overall, the trend in daylight duration reveals a gradual increase from 11 hours in the beginning of the year to a maximum of 13 hours during the height of summer, before settling back to 12 hours as August unfolds. As the days start to shorten, the lingering warmth and vibrant sunsets of August provide a picturesque backdrop for both relaxation and adventure in this tropical paradise.

Average Daylight Hours in Cruz Bay for August

The chart illustrates the variation in daylight duration in Cruz Bay 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 11m13h 5m12h 42m12h 12m11h 41m11h 15m11h 2m
Data source: Cruz Bay daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Cruz Bay

In Cruz Bay, Virgin Islands, August brings a gentle breeze with an average wind speed of 7.4 m/s (17 mph), making it a pleasant time to enjoy the outdoors. This month stands out as a transitional period, reflecting the shifting winds as summer edges towards autumn. Prior to August, the wind speed peaks in July at 8.5 m/s (19 mph), while September sees a notable drop to 5.6 m/s (12 mph), indicating a calming trend as the season changes. Overall, the winds during these summer months tend to be more spirited, with February claiming the title of the windiest month at 8.7 m/s (20 mph). As August rolls in, visitors can savor the warm temperatures complemented by the rhythmic sway of the Trade Winds, setting the perfect atmosphere for relaxation and exploration.

Average August Wind Speed in Cruz Bay

The chart displays monthly wind speed patterns in Cruz Bay, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.98.77.46.37.18.28.57.4 m/s5.66.16.57.9
Data source: Cruz Bay August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Cruz Bay Compares to Other Months

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

August weather is characterized by warmer temperatures, with average highs reaching around 29°C (85°F) and a high humidity level of 82%. This month sees significant rainfall, with 113 mm (4.4 in) of precipitation over 17 days. In contrast, January experiences slightly cooler conditions, with average temperatures peaking at 27°C (80°F) and lower humidity at 77%. Rainfall is also less abundant during this month, totaling just 33 mm (1.3 in) over 13 days. For more detailed information, you can check Cruz Bay weather in January.

In comparing the weather of August and February in Cruz Bay, February tends to be slightly cooler with average temperatures ranging from a minimum of 22°C (72°F) to a maximum of 27°C (80°F), compared to August's warmer average temperatures of 25°C (77°F) to 29°C (85°F). Additionally, February experiences significantly lower rainfall, with only 32 mm (1.2 in) over 12 days, in contrast to August's 113 mm (4.4 in) over 17 days. The humidity level is also lower in February at 76%, compared to August's high of 82%. For more detailed information about February weather, you can visit Cruz Bay weather in February.

In comparing the weather between August and March, August emerges as the warmer month, with average temperatures reaching around 28°C (82°F), while March averages a cooler 25°C (77°F). August experiences higher humidity at 82% and significantly more precipitation, totaling 113 mm (4.4 in) across 17 days, compared to March's 37 mm (1.5 in) over 12 days. This makes March a drier and less humid option for those looking to avoid the more humid and rainier conditions of August. For more detailed insights, you can visit Cruz Bay weather in March.

When comparing the weather in August and April, it's evident that both months are warm but differ significantly in precipitation and humidity. August experiences higher temperatures, with minimums reaching 25°C (77°F) and maximums peaking at 29°C (85°F), while April's temperatures are slightly cooler, ranging from a minimum of 23°C (74°F) to a maximum of 27°C (81°F). Additionally, August sees more rainfall, with 113 mm (4.4 in) of precipitation over 17 days, compared to April's 39 mm (1.5 in) over just 8 days. Humidity is also higher in August at 82%, compared to 77% in April. For more detailed insights on April weather, you can visit Cruz Bay weather in April.

In comparing the weather between August and May, we see that August tends to be slightly warmer with average temperatures reaching 28°C (82°F) compared to May's average of 26°C (79°F). Both months experience minimal variations in maximum temperatures, with August peaking at 29°C (85°F) and May at 28°C (82°F). However, August is notably wetter, receiving 113 mm (4.4 in) of precipitation over 17 days, while May has significantly less rainfall at 60 mm (2.4 in) across 14 days. Additionally, August has a higher humidity level at 82%, compared to May's 78%. For a closer look at May weather specifics, check out Cruz Bay weather in May.

In comparing the weather between August and June, we find that both months exhibit warm temperatures, with average highs around 29°C (85°F) in August and 29°C (84°F) in June. However, August tends to be slightly warmer overall, with an average temperature of 28°C (82°F) compared to June's 27°C (81°F). Precipitation is significantly higher in August, with 113 mm (4.4 in) over 17 days, contrasted with June's 61 mm (2.4 in) over 16 days. Humidity levels are also higher in August at 82%, compared to June's 79%. For more details, check Cruz Bay weather in June.

In comparing the weather between July and August, both months exhibit similar temperature ranges, with average highs hovering around 29°C (85°F). However, July tends to be slightly cooler on average at 27°C (81°F), compared to August's average of 28°C (82°F). Notably, August experiences more precipitation, totaling 113 mm (4.4 in) over 17 days, while July has 93 mm (3.7 in) spread across 19 days. Humidity levels remain constant at 82% for both months, contributing to the overall tropical feel. For more detailed insights on July weather, check Cruz Bay weather in July.

In comparing the weather between August and September, both months show consistent temperatures, with minimums at 25°C (77°F), averages at 28°C (82°F), and maximums reaching 29°C (85°F). However, September experiences a notable increase in precipitation, totaling 157 mm (6.2 in) over 18 days, compared to August's 113 mm (4.4 in) across 17 days. Humidity levels remain relatively similar, hovering around 82% in August and slightly decreasing to 80% in September. For more detailed information, you can check Cruz Bay weather in September.

August and October present similar temperature ranges, with both months featuring minimum temperatures around 25°C (77°F) and maximums reaching 29°C (85°F). However, in October, the average temperature dips slightly to 27°C (82°F), compared to 28°C (82°F) in August. Precipitation is higher in October, with 133 mm (5.2 in) over 18 days, while August sees 113 mm (4.4 in) across 17 days. Humidity remains relatively consistent, but October has a slightly lower humidity level at 79%, compared to August's 82%. For a detailed look at the weather specifics, visit Cruz Bay weather in October.

In comparing the weather of August and November, we find that both months present warm temperatures, with August having a slightly higher average of 28°C (82°F) compared to November's 27°C (80°F). The maximum temperatures are also similar, peaking at 29°C (85°F) in August and 28°C (83°F) in November. Precipitation levels are relatively close, with August receiving 113 mm (4.4 in) over 17 days and November seeing 106 mm (4.2 in) across 16 days. Humidity levels are slightly higher in August at 82%, while November experiences a more comfortable 79%. For more detailed information about November weather, you can check Cruz Bay weather in November.

In comparing the weather of August and December, we can see some notable differences. August typically experiences slightly warmer temperatures with a minimum of 25°C (77°F), an average of 28°C (82°F), and a maximum of 29°C (85°F). Additionally, this month sees higher precipitation levels, averaging around 113 mm (4.4 in) across 17 rainy days and relative humidity at a high 82%.

In contrast, December features milder temperatures, with a minimum of 24°C (75°F), an average of 26°C (79°F), and a maximum of 28°C (83°F). Precipitation is significantly reduced to 51 mm (2.0 in) over 16 days, and humidity is slightly lower at 77%. For more detailed weather information during December, you can visit Cruz Bay weather in December.

Compare Cruz Bay's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Cruz Bay

In August, Cruz Bay experiences a warm and humid atmosphere, characterized by relatively high temperatures and substantial rainfall compared to other months. With an average temperature around 28°C (82°F), it remains warm, but the increased humidity and frequent rain showers—totaling about 113 mm (4.4 in) over approximately 17 days—create a unique tropical environment. While temperatures are somewhat stable throughout the summer, August stands out due to its higher likelihood of rain, inviting lush greenery and vibrant natural scenery. For a more detailed look into the area's weather patterns, visit Cruz Bay Climate.