Last updated: February 24, 2025
In September, Waimanalo Beach offers a delightful tropical experience, with maximum temperatures reaching up to 28°C (83°F) and a cozy average of 26°C (79°F). Visitors can expect warm days complemented by minimum temperatures around 23°C (75°F), perfect for beach activities. Although precipitation is moderate with totaling 19 mm (0.7 in) spread over 4 days, the high humidity levels at 82% add a lush, vibrant feel to the surroundings. This combination of warmth and moisture enhances the natural beauty of Waimanalo Beach, making it an ideal destination for those seeking both relaxation and adventure in a picturesque setting.
In September, Waimanalo Beach greets visitors with consistently warm temperatures, marking the transition from summer to fall. With minimums around 23°C (75°F) and daytime highs peaking at 28°C (83°F), the climate remains inviting, perfect for beach activities. The average temperature sits at a comfortable 26°C (79°F), a slight increase from earlier months, ensuring that outdoor enthusiasts can still enjoy the sun and surf. As the year shifts towards autumn, September's warmth continues the trend of balmy Hawaiian weather, making it an ideal time for sun-seekers to relish in the natural beauty of this coastal paradise.
In September, Waimanalo Beach experiences a moderate rainfall, with an average precipitation of 19 mm (0.7 in) over approximately 4 days. This marks a slight uptick from the drier summer months of July and August, which recorded only 2 days of rain each. The increase in rainfall foreshadows the wetter autumn season ahead, typically characterized by October's higher average of 45 mm (1.8 in). Interestingly, despite September being inching towards the more humid months, it still maintains a relatively pleasant climate, making it an optimal time for visitors to enjoy outdoor activities amidst the moderate showers. This pattern of rainfall sets the stage for Waimanalo Beach's lush, vibrant landscape as the year progresses.
September in Waimanalo Beach showcases a notable consistency in humidity, with levels hovering around 82%. This minor dip from the 83% experienced in the peak summer months of July and August reflects a transition into the fall season, yet still maintains the tropical feel that characterizes this coastal paradise. The month ties with the preceding and succeeding months, both of which also present high humidity levels, ensuring that the post-summer warmth lingers a little longer. As autumn approaches, residents and visitors alike can expect the soothing embrace of the ocean air, making September a month that beautifully balances heat and humidity.
In September, Waimanalo Beach experiences a UV Index of 12, categorizing it within the extreme exposure level, with a burn time of just 10 minutes for unprotected skin. This marks a slight decrease from the peak UV Index of 13 observed during the summer months, yet it remains significantly high, indicating the need for vigilant sun protection. As the season transitions into fall, it's a reminder that even as temperatures begin to cool, the risk of harmful UV radiation persists. Understanding these trends is essential for ensuring safe outdoor activities. For more detailed information, visit Waimanalo Beach UV Index.
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As September unfolds in Waimanalo Beach, the sun continues to shine brightly, offering an impressive 319 hours of sunlight. This month marks a gentle transition from the summer peak of 350 hours in July, showcasing a trend of gradually decreasing daylight as autumn approaches. Interestingly, September’s sunshine is notably resilient, outshining both November's 275 hours and December's 260 hours. This ebb in hours hints at the lush tropical setting of Waimanalo, where the vibrant energy of summer lingers just a bit longer, inviting visitors to bask in its golden glow before the cooler months set in. Embrace the warmth of September, where sunshine still reigns supreme in this coastal paradise.
In September, Waimanalo Beach enjoys a 70% chance of sunny weather, making it one of the brighter months of the year. This follows a trend of increasing sunshine from the mid-summer months, where August peaks at 74%. While September's likelihood remains robust, it slightly dips from the summer highs, yet it captures the essence of early fall warmth. Notably, as the year progresses toward winter, the chances of sun generally decline, highlighting September as a prime time for beachgoers looking to soak in the last rays of summer before the clouds become more prevalent in the following months. With a consistent warmth and a favorable forecast, September invites visitors to relish the beach's charm against a backdrop of golden sunshine.
As September unfolds in Waimanalo Beach, the daylight duration settles at 12 hours, mirroring the longer days of late spring and summer. Following the peak of summer with its generous 13 hours in the preceding months of June through August, September marks a transition toward shorter days as autumn approaches. This gradual shift in daylight is consistent with the pattern seen throughout the year, where longer days peak around May through August before gradually tapering off. With October bringing a slight decrease to 11 hours, the rhythm of daylight follows the natural ebb and flow of the seasons, inviting sun-seekers to enjoy the lingering warmth of early fall at this idyllic beach.
In September, Waimanalo Beach experiences a delightful uptick in wind speed, averaging 7.7 m/s (17 mph), making it a perfect time for water sports enthusiasts. This month showcases an increase from the previous summer months, reflecting the transition towards the slightly stronger winds typical of autumn. Notably, July stands as the peak with 8.7 m/s (19 mph), while the winds begin to mellow again by October at 8.0 m/s (18 mph). Overall, September sits comfortably above the earlier months, contributing to the beach's vibrant atmosphere and enticing conditions for both surfers and kiteboarders alike. As the season shifts, these breezy days offer a refreshing break under the sun, perfect for enjoying the natural beauty of this stunning coastal locale.
The weather in Waimanalo Beach changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Waimanalo Beach and find detailed weather information for every month.
In September, the weather is generally warmer with average temperatures around 26°C (79°F) and maximums reaching 28°C (83°F), accompanied by a relatively high humidity of 82%. The month sees about 19 mm (0.7 in) of rainfall spread over four days. In contrast, January experiences slightly cooler temperatures, with an average of 23°C (74°F) and maximums of 25°C (78°F). The month has less precipitation at 16 mm (0.6 in), also over four days, and lower humidity at 78%. For more details, check Waimanalo Beach weather in January.
September typically enjoys warmer temperatures compared to February, with average highs reaching around 28°C (83°F) and a minimum of 23°C (75°F). In contrast, February sees cooler temperatures, with average highs of 25°C (77°F) and a minimum of 17°C (63°F). While September has relatively low precipitation with only 19 mm (0.7 in) over about 4 days, February tends to be wetter, recording 60 mm (2.4 in) across approximately 9 days. Humidity levels remain similar between the two months, hovering around 82% in September and slightly lower at 79% in February. For more detailed insights, you can check out Waimanalo Beach weather in February.
September and March present contrasting weather patterns, with September generally being warmer and drier. In September, temperatures range from a minimum of 23°C (75°F) to a maximum of 28°C (83°F), with an average of 26°C (79°F) and only 19 mm (0.7 in) of precipitation over 4 days. In contrast, March tends to be cooler, with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 25°C (77°F) and an average of 23°C (73°F). March also sees significantly more rainfall, accumulating 66 mm (2.6 in) over 9 days, although the humidity remains relatively similar at 78%. For more detailed insights about March weather, check out Waimanalo Beach weather in March.
In September, the weather is generally warmer, with temperatures ranging from a minimum of 23°C (75°F) to a maximum of 28°C (83°F) and an average of 26°C (79°F). There is relatively low precipitation, totaling 19 mm (0.7 in) over about four days, and humidity remains high at 82%. In contrast, April sees slightly cooler temperatures with a minimum of 20°C (69°F) and a maximum of 25°C (78°F), averaging 24°C (75°F). Although April has more precipitation, totaling 30 mm (1.2 in) spread across six days, the humidity is only marginally lower at 81%. For a more detailed look at the weather conditions in April, check out Waimanalo Beach weather in April.
In September, the weather is slightly warmer than in May, with average temperatures ranging from a minimum of 23°C (75°F) to a maximum of 28°C (83°F), compared to May's range of 19°C (66°F) to 27°C (80°F). Both months experience similar humidity levels at 82% and have an equivalent number of rainy days occurring over four days. However, September typically sees less precipitation overall, with 19 mm (0.7 in) compared to May's 23 mm (0.9 in). For more detailed information about May weather, you can check Waimanalo Beach weather in May.
In comparing the weather of September and June, both months experience similar minimum temperatures around 23°C (75°F), with September showing a slightly warmer average of 26°C (79°F) compared to June's average of 25°C (78°F). The maximum temperatures are also close, with September peaking at 28°C (83°F) and June at 27°C (81°F). However, September is characterized by lower precipitation levels, recording 19 mm (0.7 in) over 4 days, whereas June has 27 mm (1.1 in) of rain over just 3 days. Interestingly, both months share identical humidity levels at 82%. For more specifics on beach weather, you can check Waimanalo Beach weather in June.
In comparing the weather of September and July, both months exhibit similar temperature ranges, with minimums around 23°C (75°F), average temperatures of 26°C (79°F), and maximums peaking at 28°C (82-83°F). However, September experiences slightly higher precipitation, with 19 mm (0.7 in) over 4 days, compared to July's 13 mm (0.5 in) over just 2 days. Humidity levels are quite close, with September at 82% and July at 83%, indicating a generally humid climate throughout both months. For a more detailed look at July weather specifics, you can check this link: Waimanalo Beach weather in July.
In comparing the weather between September and August, both months exhibit similar temperature ranges, with August showing a slightly higher minimum temperature of 24°C (76°F) compared to September's 23°C (75°F). The average and maximum temperatures remain consistent at 26°C (79°F) and 28°C (83°F) for both months. However, September experiences slightly higher precipitation, totaling 19 mm (0.7 in) over 4 days, while August reports 15 mm (0.6 in) over just 2 days. Humidity levels are also quite similar, with September at 82% and August at 83%. For a closer look at the specific weather patterns in August, you can visit Waimanalo Beach weather in August.
In September, the weather features warm temperatures with a minimum of 23°C (75°F) and an average high of 28°C (83°F), accompanied by relatively low precipitation of 19 mm (0.7 in) over just 4 days. The humidity remains high at 82%. In contrast, October maintains the same minimum and average temperatures but sees an increase in precipitation to 45 mm (1.8 in) spread over 7 days, resulting in a slightly lower humidity of 81%. This shift indicates that while the temperatures remain consistent, October tends to be wetter with more rainy days. For more specific details on the weather in October, you can check this link: Waimanalo Beach weather in October.
In comparing the weather between September and November, September tends to be slightly warmer with average temperatures around 26°C (79°F) and maximum temperatures peaking at 28°C (83°F). By contrast, November experiences a slight decrease in temperature, with averages dropping to 25°C (77°F) and maximums reaching 27°C (82°F). Precipitation also differs, as September sees about 19 mm (0.7 in) over 4 days, while November receives more rain, totaling 25 mm (1.0 in) across 6 days. Humidity remains relatively high in both months, with September at 82% and November slightly lower at 80%. For more detailed information on November weather, you can visit Waimanalo Beach weather in November.
In September, temperatures are generally warmer, with a minimum of 23°C (75°F) and an average of 26°C (79°F), peaking at a maximum of 28°C (83°F). The month sees relatively low precipitation, totaling 19 mm (0.7 in) over about 4 days, and a high humidity level of 82%. In contrast, December brings slightly cooler temperatures, with a minimum of 20°C (68°F) and an average of 24°C (75°F), reaching a maximum of 26°C (79°F). However, December is wetter, experiencing 63 mm (2.5 in) of rainfall spread over 8 days, and slightly lower humidity at 79%. For more detailed insights, you can explore Waimanalo Beach weather in December.
As September rolls in, Waimanalo Beach embraces a warm and humid climate that sets it apart from the cooler months that precede it. With temperatures remaining comfortably in the mid-20s Celsius, this month reveals a delightful blend of sunshine and occasional brief showers, with an average of just four days of precipitation. The humidity hovers around a balmy 82%, creating that quintessential tropical feel. Whether you’re basking in the sun or enjoying a moment of tranquility under a palm tree, September offers a unique charm that's perfect for beachgoers. For a deeper dive into the weather patterns throughout the year, explore the Waimanalo Beach Climate page.