Last updated: February 24, 2025
In August, Honolulu experiences a delightful tropical climate with maximum temperatures reaching 28°C (83°F) and averaging around 26°C (79°F). With a minimum temperature of 24°C (76°F), the weather remains comfortably warm throughout the month. Humidity levels hover at a notable 83%, adding a touch of tropical moisture to the air. Despite this, only two days experience light precipitation, totaling about 15 mm (0.6 in), making it an ideal time for outdoor activities and beach outings in this stunning Pacific paradise.
In August, Honolulu experiences warm and inviting temperatures that epitomize its tropical charm. With minimums around 24°C (76°F), average highs reaching 26°C (79°F), and peak temperatures climbing to 28°C (83°F), the weather invites both relaxation and adventure. This month marks a slight uptick in warmth compared to the preceding summer months, with consistent averages that hint at the enduring summer vibes. As August progresses, visitors can bask in the sunny skies, enjoying long beach days and vibrant sunsets, making it an ideal time to explore the island's natural beauty and rich culture.
In August, Honolulu experiences a modest amount of precipitation, with 15 mm (0.6 in) falling over just two days. This slight uptick from July's low of 13 mm signals the onset of the late summer rains, though the overall trend remains relatively dry compared to the wetter months ahead, such as October, which typically sees a significant increase with 45 mm (1.8 in) over seven days. The consistent pattern of sparse summer rains suggests that while August may contain a few showers, it still retains its character as a sun-drenched month, making it an ideal time for outdoor activities before the rainy season fully arrives.
In August, Honolulu experiences a consistent humidity level of 83%, reflecting the peak of its tropical climate. This marks a notable rise from the 78% humidity found in January and March, gradually increasing as the summer months progress. Following a trend established from April through July, where humidity levels steadily climbed from 81% to 83%, August maintains this high level, setting the stage for a humid late summer. As the year transitions into September, a slight drop to 82% is observed, but the high humidity throughout these months creates a lush, vibrant atmosphere typical of Hawaii’s stunning landscapes.
In August, Honolulu experiences its peak UV Index, maintaining a level of 13, which categorizes it as extreme exposure. This trend of increasing UV intensity begins in March and continues through July, highlighting the region's strong sun exposure during the summer months. Visitors and residents should be particularly cautious, as the recommended burn time is a mere 10 minutes under these conditions. As summer turns to fall, the UV Index dips slightly to 12 in September, before gradually decreasing through the rest of the year. With such high levels of UV radiation consistently noted, it's essential to stay informed and protected. For more details, visit Honolulu UV Index.
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August in Honolulu glows with an impressive 339 hours of sunshine, maintaining the vibrant atmosphere established in the preceding summer months. Following July's peak of 350 hours, August's sunlight gently transitions as it prepares for the cooling embrace of fall. This trend reflects an overall increase in daylight hours from the start of the year, with a noticeable rise peaking in the warmer months—March through August. As the island inches toward September, the sun remains a steadfast companion, promising beautiful days while gradually retreating as autumn approaches. This enduring warmth encapsulates the essence of Hawaiian summer, inviting residents and visitors alike to revel in the sun-soaked paradise.
August in Honolulu boasts a notable likelihood of sunny weather, with a 74% chance of enjoying clear skies. This makes it one of the sunniest months of the year, following closely behind May, which sees a 73% chance of sunshine. As summer peaks, the trend shows a steady increase in sunny days from the cooler, cloudier months of January and March, which reflect chances below 60%. As the city transitions into September, the probability remains high at 70%, suggesting that Tropic sunshine is a staple in August. Overall, those planning to visit Honolulu during this time can expect delightful weather, ideal for beach outings and outdoor adventures.
In Honolulu, United States, the month of August offers a delightful 12 hours of daylight, marking a gradual transition from the peak summer months. As the year progresses, daylight duration typically increases from just 10 hours in January to a maximum of 13 hours from May to July, creating a sun-drenched landscape perfect for outdoor adventures. However, as August rolls in, there is a subtle shift back to slightly shorter days, a trend that continues into the autumn months of September and October, where daylight lingers at 12 hours and dips to 11 hours by November. This rhythm not only showcases Honolulu's consistent warmth but also signals the island's beautiful balance between summer vibrancy and the forthcoming seasonal changes.
In August, the average wind speed in Honolulu settles at a pleasant 7.3 m/s (16 mph), echoing the conditions of March. This month ushers in moderate breezes, reminiscent of the lively summer winds experienced in July, which peeks at a robust 8.7 m/s (19 mph). Compared to earlier months, August's winds are generally consistent, serving as a transition between the more vigorous summer gusts and the calmer, cooler days that follow in autumn. Additionally, while September witnesses a slight uptick to 7.7 m/s (17 mph), it’s clear that August holds its own with a reliable and inviting breeze, perfect for beachgoers and outdoor enthusiasts alike.
The weather in Honolulu 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 Honolulu and find detailed weather information for every month.
August and January in Honolulu present distinct yet pleasant weather patterns. In August, temperatures are slightly warmer, with daily averages reaching around 26°C (79°F) and highs peaking at 28°C (83°F). This month experiences more humidity, averaging 83%, along with light precipitation totaling about 15 mm (0.6 in) over just 2 days. In contrast, January is cooler, with average temperatures of 23°C (74°F) and highs of 25°C (78°F). It experiences marginally more precipitation, totaling 16 mm (0.6 in) across 4 days, but benefits from lower humidity levels at 78%. For a detailed comparison of January weather, you can visit Honolulu weather in January.
August and February present distinctly different weather patterns. In August, temperatures are warmer, with minimums around 24°C (76°F) and average highs reaching 28°C (83°F). The month is relatively dry, with only 15 mm (0.6 in) of precipitation over just 2 days, and humidity levels peak at 83%. In contrast, February brings cooler temperatures, with a minimum of 17°C (63°F) and average highs of 25°C (77°F). This month experiences significantly more rainfall, totaling 60 mm (2.4 in) spread across 9 days, while humidity remains slightly lower at 79%. For more detailed information, you can check Honolulu weather in February.
In August, the weather is warm and relatively stable, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 28°C (83°F), complemented by high humidity at 83%. There's minimal precipitation, averaging just 15 mm (0.6 in) over about 2 rainy days. In contrast, March offers cooler temperatures, with a range from 19°C (67°F) to 25°C (77°F) and a significantly higher rainfall of 66 mm (2.6 in) across approximately 9 days. The humidity in March is slightly lower at 78%, leading to a more comfortable atmosphere despite the increased precipitation. For more details, you can check Honolulu weather in March.
August and April present distinct weather profiles, showcasing the transition between seasons. August typically features warmer temperatures, with a minimum of 24°C (76°F) and an average of 26°C (79°F), peaking at 28°C (83°F). In contrast, April enjoys slightly cooler conditions, with minimum temperatures around 20°C (69°F) and a maximum of 25°C (78°F). While August experiences minimal precipitation of 15 mm (0.6 in) over just 2 days, April sees a more significant rainfall of 30 mm (1.2 in) spread across 6 days. Humidity remains relatively high in both months, at 83% in August and 81% in April, contributing to the tropical feel. For more details on April weather, you can refer to Honolulu weather in April.
In comparing the weather between August and May, August tends to be slightly warmer, with average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 28°C (83°F), while May has temperatures that range from 19°C (66°F) to 27°C (80°F). August experiences lower precipitation levels, with only 15 mm (0.6 in) over 2 days, compared to May, which sees 23 mm (0.9 in) over 4 days. Humidity levels are quite similar, with August at 83% and May at 82%. For more detailed information, you can check Honolulu weather in May.
In comparing the weather between June and August, both months exhibit warm temperatures, but August tends to be slightly warmer overall. In June, the minimum temperature averages at 23°C (74°F), peaking at about 27°C (81°F) with an average of 25°C (78°F). In contrast, August has a minimum temperature of 24°C (76°F) and reaches a highs of 28°C (83°F) with an average of 26°C (79°F).
Additionally, June experiences more precipitation, with 27 mm (1.1 in) over three days, compared to August's lighter rainfall of 15 mm (0.6 in) across just two days. Humidity levels are fairly comparable, with August showing a slightly higher average of 83% compared to June's 82%. For a more detailed look at the weather conditions in June, you can check Honolulu weather in June.
In comparing the weather between July and August, both months show remarkably similar temperature patterns, with average highs around 28°C (82-83°F) and average lows of 23-24°C (74-76°F). July experiences slightly less precipitation, totaling 13 mm (0.5 in) over 2 days, while August sees a marginal increase to 15 mm (0.6 in) within the same number of rainy days. Both months maintain a high humidity level of 83%, contributing to a warm and tropical feel. For more details on July's climate, visit Honolulu weather in July.
In August, the weather is marked by slightly higher humidity levels at 83%, alongside a stable temperature range with minimums around 24°C (76°F) and maximums reaching 28°C (83°F), leading to an average of 26°C (79°F). Precipitation is relatively low, with just 15 mm (0.6 in) over 2 days. Conversely, September presents a slight decrease in minimum temperature to 23°C (75°F) while maintaining the same maximum and average temperatures as August. However, rainfall increases to 19 mm (0.7 in) spread across 4 days, and humidity dips slightly to 82%. For more detailed insights, you can check Honolulu weather in September.
In August, the weather is characterized by warm temperatures, with a minimum of 24°C (76°F) and a maximum of 28°C (83°F), accompanied by relatively low precipitation of just 15 mm (0.6 in) over 2 days. The humidity is quite high at 83%, making the heat feel more intense. In contrast, October maintains a similar average temperature of 26°C (79°F), but the minimum temperature drops slightly to 23°C (73°F) and maximum to 28°C (82°F). However, October experiences significantly higher precipitation, totaling 45 mm (1.8 in) spread over 7 days, and slightly lower humidity at 81%. For more details, you can check Honolulu weather in October.
August and November in Honolulu present distinct weather profiles, with August generally warmer and more humid. In August, temperatures range from a minimum of 24°C (76°F) to a maximum of 28°C (83°F), accompanied by relatively low precipitation of 15 mm (0.6 in) over just 2 days and high humidity at 83%. In contrast, November sees slightly cooler temperatures, with a minimum of 21°C (70°F) and a maximum of 27°C (82°F). Precipitation increases to 25 mm (1.0 in) over 6 days, and humidity remains a bit lower at 80%. For a detailed look at the weather in November, check out Honolulu weather in November.
In August, Honolulu experiences warmer temperatures, with a minimum of 24°C (76°F) and an average of 26°C (79°F), reaching a maximum of 28°C (83°F). The month sees relatively low precipitation, with only 15 mm (0.6 in) falling over just 2 days, contributing to a higher humidity level of 83%. In contrast, December offers slightly cooler temperatures, with a minimum of 20°C (68°F) and an average of 24°C (75°F), peaking at 26°C (79°F). However, this month experiences more significant rainfall, totaling 63 mm (2.5 in) spread over 8 days, alongside a slightly lower humidity of 79%. For more details, you can check Honolulu weather in December.
As summer peaks in Honolulu, August presents a warm and inviting climate, characterized by pleasantly moderate temperatures that generally outweigh the cooler months. While the humidity remains relatively high, the minimal precipitation in August distinguishes it from other months, making it one of the drier periods of the year. With only a couple of wet days, locals and visitors can relish more time under the sunny skies. Overall, August balances warmth and comfort, offering an idyllic setting for beach activities and exploration. For a deeper dive into the city's weather patterns, check out Honolulu Climate.