September Weather in Kahuku, United States

Last updated: February 24, 2025

In Kahuku, United States, September brings a delightful blend of warm temperatures and refreshing moisture. With a maximum of 28°C (83°F) and an average temperature hovering around 26°C (78°F), the weather is ideal for outdoor exploration. Evenings cool down to a comfortable 23°C (74°F), making it perfect for relaxation. September records a total precipitation of 31 mm (1.2 in) over approximately 7 days, contributing to the region's lush vegetation. The humidity remains high at 82%, adding a tropical feel to the air, enriching the experience for both locals and visitors alike.

September Temperature in Kahuku

In September, temperatures in Kahuku continue the trend of warm, tropical weather, offering delightful conditions for outdoor enthusiasts. With a minimum temperature of 23°C (74°F) and a maximum climbing to 28°C (83°F), the month showcases an inviting average temperature of 26°C (78°F). This slight increase in warmth compared to previous months emphasizes the transition into late summer, making it an ideal time to explore the stunning landscapes and vibrant culture of the area. As the days remain balmy and pleasant, visitors can indulge in a variety of activities under the radiant sun, reminding everyone why Kahuku is such a beloved destination.

September Weather in Kahuku: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Kahuku, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec737272737577787878777674
Data source: Temperature data for Kahuku 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.

September Precipitation in Kahuku

In September, Kahuku experiences a consistent rainfall pattern, receiving 31 mm (1.2 in) of precipitation over approximately 7 days. This month aligns with the overall moderate trend observed throughout the late summer, where rainfall remains steady yet modest compared to the wetter months that follow. While September matches the earlier months like May and August in terms of total precipitation, it is significantly lower than the impending October, which typically brings more substantial rain. This gradual transition hints at the shifting climate as the region prepares for the heavier downpours of the fall season, making September a relatively dry prelude in Kahuku's annual precipitation cycle.

September Precipitation Trends in Kahuku

The chart displays monthly precipitation patterns in Kahuku, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec318382373144303132574287
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Kahuku

September in Kahuku, United States, sees humidity levels stabilize at 82%, mirroring the conditions of the preceding months. As summer transitions to early fall, humidity remains high, reflecting a consistent tendency throughout the year. The trend shows a progressive increase from 78% in January to a peak of 83% in July and August, before dipping slightly as the year progresses. This pattern illustrates Kahuku's tropical environment, where moisture-laden air is a regular feature, creating a lush and vibrant landscape. As autumn approaches, humidity remains comfortably elevated, promoting the area's rich flora and vibrant ecosystems.

September Average Humidity in Kahuku

This chart illustrates the average monthly humidity levels in Kahuku, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec78%79%78%81%82%82%83%83%82%81%80%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kahuku

As summer winds down in Kahuku, September maintains a notably high UV Index of 12, placing it in the extreme exposure category. This signals that sun safety is still paramount, with a burn time of just 10 minutes for unprotected skin. Following the intense levels seen from June through August, September's UV Index shows a slight dip, yet remains robust, reflecting the region's consistent sun exposure throughout the year. In fact, the UV Index remains high until November, when it drops to 8. For those enjoying the outdoors, it's essential to stay vigilant about sun protection. You can find more detailed insights on this month's sun risks at Kahuku UV Index.

Maximum UV Index Levels in Kahuku for September

The chart shows the monthly maximum UV Index (UVI) for Kahuku in September, 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.
JanFebMarAprMayJunJulAugSepOctNovDec810111212131313121187
Data source: Kahuku September 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.

September Sunshine in Kahuku

As summer gently fades in Kahuku, September boasts an impressive 318 hours of sunshine, making it the perfect time for outdoor adventures and soaking up the last rays of the season. Following a peak in July with 349 hours, sunshine hours slightly decline, yet remain robust, showcasing the region's abundant light. This drop reflects the gradual transition towards autumn, though the warmth of late summer still lingers in the air. Notably, September retains more sunshine than the cooler months that follow, as October provides 300 hours and November drops to 272 hours. This seasonal rhythm highlights Kahuku's appealing climate, where sun-soaked days are a defining feature even as the year approaches its end.

Monthly Sunshine Duration in Kahuku: September Highlighted

The September sunshine duration represents the total number of hours Kahuku experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec218h250h286h308h337h338h349h338h318h300h272h252h
Data source: Kahuku September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kahuku During September

In September, Kahuku enjoys a notable 63% chance of sunny weather, reflecting a pleasant transition from the peak summer months. This figure stands out as the weather begins to shift, with August boasting an impressive 68% of sunshine and October following closely at 64%. Notably, September strikes a balance between the summer heat and the upcoming autumn, making it an ideal time for outdoor activities. As we look back at the earlier months, the trend indicates that the likelihood of sunny days has generally been on the rise from the cooler January and February days, culminating in a vibrant early fall. This trajectory assures residents and visitors alike that September is a prime month to soak up the sun in Kahuku.

Percentage of Sunny Days in September in Kahuku

The chart illustrates the percentage of sunny days in Kahuku throughout the year, with September 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 Kahuku experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec54%59%47%59%66%67%51%68%63%64%60%38%
Data source: Kahuku September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kahuku in September

As summer transitions into autumn, September in Kahuku, United States brings a gentle shift in daylight, offering approximately 12 hours of sunlight. This duration mirrors the light experienced in both April and August, showcasing a slight decline from the peak of 13 hours reached in the preceding months of May, June, and July. With daylight gradually diminishing as the year progresses, September serves as a vivid reminder of nature's rhythm, bridging the long, sunlit days of summer with the shorter days ahead, while still allowing ample time to enjoy the beautiful warm hues of early fall.

Average Daylight Hours in Kahuku for September

The chart illustrates the variation in daylight duration in Kahuku throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 58m11h 26m12h 2m12h 39m13h 10m13h 25m13h 16m12h 49m12h 13m11h 36m11h 4m10h 49m
Data source: Kahuku daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kahuku

In Kahuku, United States, September offers a gentle embrace of average wind speeds at 6.8 m/s (15 mph), echoing the breezy sensations of the summer months. This moderate wind speed closely aligns with the steady currents observed in both August and October, suggesting a consistent atmospheric pattern as the region transitions into fall. Interestingly, the wind picks up notably during the summer, peaking in July at 7.7 m/s (17 mph), before settling into a more tranquil rhythm as the year draws to a close. The gradual decline in wind speeds towards the winter months, dipping to 4.8 m/s (11 mph) in November, emphasizes the calming shift in Kahuku's seasonal climate—a transition from the lively summer breezes to the serene whispers of autumn.

Average September Wind Speed in Kahuku

The chart displays monthly wind speed patterns in Kahuku, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec7.06.56.95.76.36.17.76.76.8 m/s6.84.87.3
Data source: Kahuku September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kahuku Compares to Other Months

The weather in Kahuku 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 Kahuku and find detailed weather information for every month.

September typically showcases slightly warmer temperatures compared to January, with average highs around 28°C (83°F) versus January's maximum of 25°C (78°F). Humidity is higher in September at 82%, compared to 78% in January, giving the former a more tropical feel. Both months receive similar amounts of precipitation, with September experiencing rainfall over 7 days and January over 8 days, totaling 31 mm (1.2 in) for each month. For a more detailed look at January weather, you can visit Kahuku weather in January.

September and February showcase distinct weather patterns. In September, temperatures are generally warmer, with a minimum of 23°C (74°F) and an average of 26°C (78°F), reaching a maximum of 28°C (83°F). The month also features relatively low precipitation at 31 mm (1.2 in) over 7 days, accompanied by high humidity at 82%. In contrast, February experiences cooler temperatures, with a minimum of 16°C (62°F) and an average of 22°C (72°F), peaking at 25°C (78°F). This month is wetter, recording 83 mm (3.3 in) of precipitation over 13 days, while humidity slightly decreases to 79%. For more detailed information on February weather, you can visit Kahuku weather in February.

In September, the weather tends to be warmer with average temperatures around 26°C (78°F) and maximums reaching 28°C (83°F), compared to March, which has a cooler average of 22°C (72°F) and a maximum of 26°C (78°F). Additionally, September experiences less precipitation at 31 mm (1.2 in) over 7 days, whereas March sees significantly more rainfall, totaling 82 mm (3.2 in) across 14 days. Despite the increased rainfall in March, the humidity levels remain relatively close, with September at 82% and March slightly lower at 78%. For more detailed information about March weather, you can check Kahuku weather in March.

In September, the weather is generally warmer, with minimum temperatures averaging 23°C (74°F) and a maximum of 28°C (83°F), compared to April's cooler minimum of 19°C (67°F) and maximum of 26°C (78°F). While September experiences slightly less precipitation at 31 mm (1.2 in) over 7 days, April sees a bit more rainfall, totaling 37 mm (1.5 in) across 8 days. Humidity levels are quite similar, with September at 82% and April a bit lower at 81%. For a detailed look at April's weather, you can check out Kahuku weather in April.

In comparing the weather between September and May, both months exhibit similar patterns in temperature and humidity. September experiences slightly warmer temperatures, with a minimum of 23°C (74°F) and an average of 26°C (78°F), while May has a minimum of 19°C (67°F) and an average of 24°C (75°F). Both months record the same level of precipitation at 31 mm (1.2 in), though September typically has fewer rainy days, averaging 7 compared to May's 9 days. The humidity remains consistent at 82% for both months, contributing to a muggy feel during this time of year. For more detailed information, you can check out Kahuku weather in May.

When comparing the weather in September to June, both months exhibit similar temperatures, with September averaging around 26°C (78°F) and June slightly cooler at 25°C (77°F). However, September experiences a marginally higher maximum temperature of 28°C (83°F), compared to June's maximum of 27°C (81°F). Precipitation levels differ significantly, with September receiving 31 mm (1.2 in) over 7 days, while June has a higher total of 44 mm (1.7 in) across 6 days. Both months share the same humidity level at 82%, creating a consistently humid atmosphere throughout this period. For more specific details about June conditions, you can check Kahuku weather in June.

In comparing the weather between September and July, we find that both months experience warm temperatures, with September showing slightly higher averages. September's minimum temperature is consistently at 23°C (74°F), with an average of 26°C (78°F) and a maximum of 28°C (83°F). In contrast, July has a similar minimum of 23°C (73°F) but a lower average of 25°C (78°F) and a maximum of 27°C (81°F). Precipitation levels are fairly close, with September receiving 31 mm (1.2 in) over 7 days, while July sees 30 mm (1.2 in) spread over 11 days. Humidity remains high in both months, with September at 82% and July slightly higher at 83%. For more detailed information, you can check Kahuku weather in July.

In comparing the weather between September and August, we see that both months share nearly identical temperature ranges, with a minimum of 23°C (74°F), an average of 26°C (78°F), and a maximum of 28°C (82°F for August and 83°F for September). Precipitation levels are also consistent, with both months receiving about 31 mm (1.2 in) of rain; however, September experiences this over seven days compared to eight days in August. Humidity remains high in both months, slightly decreasing from 83% in August to 82% in September. For more detailed insights on August weather, you can check Kahuku weather in August.

In comparing the weather between September and October, we notice some subtle shifts. September boasts slightly warmer temperatures with an average of 26°C (78°F), while October sees a slight drop to an average of 25°C (78°F), though both months have similar maximums around 28°C (83°F). Precipitation increases significantly in October to 57 mm (2.3 in) over 14 days, compared to September’s 31 mm (1.2 in) across just 7 days, indicating a wetter month ahead. Humidity remains relatively stable, with September at 82% and October slightly lower at 81%. For a more detailed overview, check out the Kahuku weather in October.

In September, the weather is typically warm with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 28°C (83°F), accompanied by a relatively low precipitation level of 31 mm (1.2 in) spread over about 7 days. The humidity is quite high at 82%, giving September a tropical feel. In contrast, November sees slightly cooler temperatures, with an average ranging from 21°C (70°F) to 27°C (82°F). However, it experiences increased rainfall, totaling 42 mm (1.6 in) over 13 days, contributing to a more humid climate at 80%. For a detailed look at the weather specifics, visit Kahuku weather in November.

In September, the weather is generally warmer, with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 28°C (83°F) and an average of 26°C (78°F). The month experiences relatively low precipitation of 31 mm (1.2 in) over about 7 days, coupled with high humidity at 82%. In contrast, December brings cooler temperatures, with a range of 19°C (66°F) to 26°C (79°F) and an average of 23°C (74°F). However, it is wetter, with precipitation reaching 87 mm (3.4 in) across 15 days, along with slightly lower humidity at 79%. For more detailed information about the weather in December, you can check Kahuku weather in December.

Compare Kahuku's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kahuku

As September unfolds in Kahuku, the weather reflects a delightful transition toward the end of summer. With pleasantly warm temperatures averaging around 26°C, this month is characterized by slightly cooler nights and a noticeable humidity level of 82%, creating a comfortable tropical atmosphere. While rainfall is not uncommon, with an average of 31 mm falling over just seven days, this moisture adds to the region's lush landscapes rather than dampening the spirit of outdoor activities. Compared to other months, September's combination of warmth and sporadic rain makes it an ideal time to experience the beauty of Kahuku. For more in-depth information on what to expect throughout the year, visit Kahuku Climate.