Last updated: February 24, 2025
In September, Hale'iwa experiences a delightful tropical climate characterized by an average temperature of 26°C (80°F), with maximums reaching 32°C (89°F) and minimums dropping to a comfortable 21°C (71°F). The month sees about 26 mm (1.0 in) of precipitation, spread across approximately 7 days, contributing to the region's lush landscapes. With humidity levels at a high 82%, this coastal paradise invites visitors to enjoy its warm, inviting atmosphere while embracing the occasional refreshing shower.
In Hale'iwa, September marks a seamless transition into warm, tropical days, with temperatures closely mirroring those of August. The month's minimum temperature settles at a comfortable 21°C (71°F), while the average hovers around 26°C (80°F), peaking with a sizzling maximum of 32°C (89°F). This consistent warmth showcases a trend of steadily rising temperatures throughout the summer months, reaching their zenith just before the cooler season sets in. As daylight fades into evening, the mild nights provide a pleasant contrast, encouraging outdoor activities under the stars. Overall, September in Hale'iwa invites visitors to bask in its inviting warmth and experience the vibrant life of this beautiful coastal town.
In September, Hale'iwa experiences a mild drop in precipitation, accumulating approximately 26 mm (1.0 in) over the month, with rain observed on just 7 days. This pattern reflects a continuation of the drier trend seen in August, which had slightly less rainfall at 27 mm (1.0 in). Looking at the broader context, September's precipitation levels are part of a gradual decline from the wetter months earlier in the year, particularly March and February, which saw significantly higher totals of 77 mm (3.0 in) and 76 mm (3.0 in) respectively. As the year progresses, October marks a slight uptick in rainfall expectations, suggesting a seasonal shift that can influence local weather dynamics. Overall, September serves as a transitional month, signaling the approach of the wetter season while maintaining a relatively pleasant climate.
In September, Hale'iwa experiences an average humidity of 82%, which reflects a slight decrease from the peak levels of 83% recorded in both July and August. This month marks a transition as the summer warmth begins to wane, yet the air remains lush and tropical, characteristic of this beautiful coastal region. The consistent humidity throughout the year, ranging from 79% to 83%, signifies the area's subtropical climate, where moisture is a constant companion, enhancing the vibrant flora and the overall charm of Hale'iwa. As the island shifts towards autumn, the humidity gently decreases, hinting at the unique interplay between the warm Pacific waters and the gentle breezes that define this stunning locale.
In September, Hale'iwa experiences a UV Index of 12, placing it in the extreme exposure category with a burn time of just 10 minutes. This month continues the trend established in the summer, where values consistently reached a peak of 13 in July and August, reflecting the heightened sun intensity typical of this region. As the year transitions into fall, the UV Index begins to taper off slightly, with October marking a decrease to 11. It's crucial to remain vigilant against sun exposure during these months, especially considering the rapid burn time. For more detailed information on current UV levels, visit Hale'iwa UV Index.
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September in Hale'iwa welcomes a vibrant display of sunshine, offering 318 hours of radiant light that beautifully bridges the high summer and the cool fall. As summer transitions, it follows a peak of 349 hours in July, gradually tapering off yet still delivering ample sunlight for outdoor adventures and serene beach days. Compared to the beginning of the year, where the sunshine clocked in at only 218 hours in January, September’s glow reflects a noteworthy increase and showcases a trend of growing daylight leading into the autumn months. With consistently high totals from April through September, Hale'iwa basks in a spectacular climate, making it an alluring destination for both residents and visitors alike.
In Hale'iwa, September offers a pleasant 56% chance of sunny weather, aligning closely with the peak months of May and August, which boast 60% sunlit days. This slight decline from the summer months suggests that while the sun is still likely to shine, there may be a gradual transition toward the cloudier conditions of fall. Notably, September's sunshine prospect is more favorable than the earlier spring months like March and July, which hover around 44%. Overall, visitors can anticipate a lovely blend of sunlight and occasional clouds, making it an ideal time to enjoy the outdoor beauty of this coastal paradise.
As summer fades in Hale'iwa, September brings a pleasant balance of 12 hours of daylight, mirroring the longer days of April and May. The trend of elongating daylight from the winter months peaks in mid-summer, where June, July, and August each showcase a robust 13 hours. However, as the year progresses, there's a gentle decline, with September marking a gradual transition towards shorter days, hinting at the approach of autumn. This beautiful rhythm of light not only enhances the island’s stunning scenery but also invites residents and visitors alike to savor the lasting warmth of the season before the days become shorter in the coming months.
In September, the winds in Hale'iwa continue a trend of moderate breezes typical for the late summer months, with an average speed of 5.0 m/s (11 mph). This steady wind pattern reflects the stability that characterizes the transition into autumn. Following the slightly breezier month of July, which boasts an average of 5.8 m/s (13 mph), September's winds ease back to match January’s calm. Notably, the winds take a dip in November, reaching their lowest average at 3.3 m/s (7 mph). As the year progresses, the return to autumn heralds a gradual increase into the more active gusts of October, emphasizing the cyclic nature of Hale'iwa’s weather. Overall, September strikes a pleasant balance, ideal for both relaxation and enjoying outdoor activities.
The weather in Hale'iwa 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 Hale'iwa and find detailed weather information for every month.
In September, the weather is typically warmer, with average temperatures reaching around 26°C (80°F) and maximums soaring to 32°C (89°F). This month experiences higher humidity at 82% and slightly more precipitation, averaging 26 mm (1.0 in) over about 7 days. In contrast, January brings cooler temperatures, with an average of 23°C (73°F) and maximums of 28°C (82°F). The humidity drops slightly to 78%, and precipitation levels are also lower at 22 mm (0.9 in) over about 6 days. For a more detailed look at January weather patterns, you can check Hale'iwa weather in January.
September and February present distinct weather patterns. In September, the temperatures are generally warmer, with a minimum of 21°C (71°F) and an average of 26°C (80°F), peaking at a maximum of 32°C (89°F). The month sees some rainfall, totaling 26 mm (1.0 in) over about 7 days, accompanied by relatively high humidity at 82%. In contrast, February is cooler, with a minimum temperature of 16°C (61°F) and an average of 22°C (72°F), reaching a maximum of 28°C (82°F). This month is wetter, recording 76 mm (3.0 in) of precipitation over 13 days, while humidity remains lower at 79%. For more details, you can check Hale'iwa weather in February.
September and March present distinct weather patterns. In September, temperatures range from a minimum of 21°C (71°F) to a maximum of 32°C (89°F), with an average temperature of 26°C (80°F). The month has relatively low precipitation at 26 mm (1.0 in) over 7 days, combined with high humidity averaging 82%. In contrast, March features cooler temperatures, with a minimum of 18°C (64°F) and a maximum of 29°C (84°F), averaging 22°C (73°F). However, March is significantly wetter, recording 77 mm (3.0 in) of rainfall over 16 days, and maintains a slightly lower humidity level at 78%. For a closer look at specific conditions, visit Hale'iwa weather in March.
In comparing the weather between September and April, September tends to be warmer with average temperatures around 26°C (80°F), reaching up to a maximum of 32°C (89°F), whereas April's temperatures are slightly cooler, averaging 23°C (74°F) and peaking at 29°C (84°F). Precipitation is generally lower in September, with only 26 mm (1.0 in) over about 7 days, while April experiences more rain, totaling 39 mm (1.5 in) across approximately 11 days. Humidity levels are quite similar, with September at 82% and April at 81%. For more information on April weather, you can visit Hale'iwa weather in April.
In September, the weather is generally warmer with average temperatures reaching 26°C (80°F) and maximum highs of 32°C (89°F), compared to May's slightly cooler average of 24°C (76°F) and maximum of 30°C (87°F). While both months experience high humidity levels of 82%, September sees less precipitation, with 26 mm (1.0 in) over 7 days, compared to May's heavier rainfall of 38 mm (1.5 in) over 12 days. This means that May tends to be more damp, providing a contrast to the warmer, drier conditions of September. For a closer look at the weather specifics, check out Hale'iwa weather in May.
In September, the temperatures are slightly warmer compared to June, with average highs reaching 32°C (89°F) versus 31°C (88°F) in June. Both months experience similar minimum temperatures, around 21°C (70-71°F). However, September tends to be drier, with only 26 mm (1.0 in) of precipitation spread over 7 days, while June sees more rainfall at 51 mm (2.0 in) across 9 days. Humidity levels remain constant at 82% in both months, contributing to a tropical feel. For more detailed information on June weather, you can check Hale'iwa weather in June.
In comparing the weather of September and July, both months exhibit similar average temperatures, with September having a minimum of 21°C (71°F) and an average of 26°C (80°F), while July records a slightly higher minimum of 22°C (71°F) and an average of 26°C (79°F). The maximum temperatures reach 32°C (89°F) in September and 31°C (88°F) in July, indicating only a minor difference. However, September experiences slightly less precipitation at 26 mm (1.0 in) over 7 days compared to July's 28 mm (1.1 in) over 11 days, suggesting that September might be a drier month overall. Humidity levels are quite comparable, with September at 82% and July at 83%. For a more detailed look at July's weather patterns, you can check out Hale'iwa weather in July.
In comparing the weather of September and August, we see some notable similarities and slight differences. Both months feature a minimum temperature of 21°C (71°F) and an average high of 32°C (89°F), creating a consistently warm climate with average temperatures around 26°C (80°F). However, September experiences a slight decrease in precipitation, totaling 26 mm (1.0 in) over 7 days, compared to August's 27 mm (1.0 in) over 8 days. Humidity levels also remain comparable, with September at 82% and August at 83%. For more detailed insights, check out the weather specifics for Hale'iwa weather in August.
In comparing September and October weather, both months share similar temperatures, with September averaging 26°C (80°F) and October maintaining a close average of 26°C (78°F). However, October sees slightly lower maximum temperatures at 31°C (88°F) compared to September's 32°C (89°F). One notable difference is the increase in precipitation; October experiences 57 mm (2.2 in) over 11 days, compared to September's 26 mm (1.0 in) over 7 days, indicating a wetter month ahead. Additionally, humidity remains relatively stable, with September at 82% and October at 81%. For a detailed look at October weather, check out Hale'iwa weather in October.
September typically experiences warmer temperatures, with an average of 26°C (80°F) and highs reaching up to 32°C (89°F), while November sees slightly cooler conditions, averaging 24°C (76°F) with a maximum of 30°C (86°F). In terms of precipitation, September receives about 26 mm (1.0 in) over 7 days, whereas November has a bit more rainfall at 32 mm (1.3 in) spread over 12 days. Humidity levels are similar, with September at 82% and November at 80%. For a more detailed look at the November weather in Hale’iwa, you can check Hale'iwa weather in November.
In comparing September and December weather, September tends to be warmer with average temperatures reaching around 26°C (80°F), peaking at 32°C (89°F). It also features relatively low precipitation, with only 26 mm (1.0 in) over 7 days, accompanied by high humidity at 82%. In contrast, December experiences cooler temperatures, with averages around 23°C (74°F) and a maximum of 28°C (83°F). However, December is wetter, receiving 79 mm (3.1 in) of rainfall across 12 days, while humidity remains slightly lower at 79%. For a detailed look at December weather specifics, you can visit Hale'iwa weather in December.
As September unfolds in Hale'iwa, the weather invites visitors to enjoy the tropical embrace of the island. With temperatures reaching comfortably warm highs and cooler nighttime lows, this month offers a delightful balance that stands out from the sweltering summer peaks. Although September sees a modest amount of rainfall, typically over just a handful of days, it maintains the beloved Hawaiian humidity at a level that ensures lush landscapes and vibrant sunsets. This combination creates an ideal backdrop for outdoor adventures and beachside relaxation. For an in-depth look at how Hale'iwa’s weather patterns compare throughout the year, be sure to check out Hale'iwa Climate.