September Weather in Wailea, United States

Last updated: February 24, 2025

September in Wailea, United States showcases a delightful tropical climate, with maximum temperatures reaching up to 32°C (90°F) and a comfortable average of 26°C (79°F). Visitors can expect mild evenings, as minimum temperatures dip to 22°C (72°F). Although rainfall is minimal with a total of 19 mm (0.7 in) across 5 days, the humidity levels are moderately high at 84%, contributing to the lush beauty of the region. Whether indulging in beachside activities or exploring local attractions, this month offers a warm, inviting atmosphere perfect for a memorable getaway.

September Temperature in Wailea

In Wailea, United States, September ushers in warm and inviting temperatures, making it an ideal time for outdoor adventures. The month sees a minimum temperature of 22°C (72°F), rising to a comfortable average of 26°C (79°F), and peaking at a maximum of 32°C (90°F). This subtle uptick from August not only reflects a continuation of the summer warmth but also hints at the transition into autumn, with September offering some of the hottest days of the year. As the ocean remains invitingly warm, visitors can enjoy the perfect blend of sunshine and pleasant breezes, solidifying Wailea’s reputation as a year-round paradise.

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

The chart illustrates September temperature patterns in Wailea, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec727272747678797979787673
Data source: Temperature data for Wailea generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Wailea

In September, Wailea experiences a gentle shift in precipitation patterns, with a total of 19 mm (0.7 in) of rainfall spread over 5 days. This marks a noticeable decrease from the wetter months of February and March, which received 78 mm (3.1 in) and 55 mm (2.2 in), respectively. The drier conditions seen in September, coupled with the warm temperatures typical of early fall, create a perfect time for outdoor activities. As the month transitions into October, precipitation begins to increase again, hinting at the return of more substantial rains, a trend that is consistent throughout the end of the year. Overall, September stands out as one of the drier months, offering a brief respite before the wetter season ensues.

September Precipitation Trends in Wailea

The chart displays monthly precipitation patterns in Wailea, 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.
JanFebMarAprMayJunJulAugSepOctNovDec307955523716242819502045
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Wailea

In September, Wailea experiences a humidity level of 84%, indicating a slight decrease from the peak summer months of July and August, which both maintain a humidity of 85%. This minor dip signals the transition into fall, as the humidity gradually begins to decrease from its summer highs. Over the course of the year, humidity has shown a steady upward trend from January (78%) through August, reaching its pinnacle in June and July, when temperatures are at their hottest. As the year progresses towards the cooler months of October and November, humidity levels stabilize, offering a comfortable atmosphere that complements Wailea's tropical climate.

September Average Humidity in Wailea

This chart illustrates the average monthly humidity levels in Wailea, 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.
JanFebMarAprMayJunJulAugSepOctNovDec79%79%79%82%83%84%85%85%84%83%82%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Wailea

As summer transitions into early autumn, September in Wailea continues the trend of high UV exposure, maintaining a formidable UV Index of 13, indicating extreme conditions with a quick burn time of just 10 minutes. This month is in line with the peak summer months of June through August, where the UV Index hovered at the same level. Interestingly, as we move from the extreme summer intensity to the milder conditions of fall, the UV Index will gradually decrease in the following months, but September still demands caution for sun lovers. Be sure to stay protected with sunscreen, especially during midday hours. For more detailed information, check out Wailea UV Index.

Maximum UV Index Levels in Wailea for September

The chart shows the monthly maximum UV Index (UVI) for Wailea 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.
JanFebMarAprMayJunJulAugSepOctNovDec810111212131313131188
Data source: Wailea 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 Wailea

September in Wailea shines brightly with 316 hours of sunshine, making it a perfect time to soak up the warm rays before the cooler months set in. This month marks a gentle shift from the summer peak, where July dazzles with 348 hours, gradually tapering off. However, September still retains a commendable amount of sunlight, competing closely with the previous summer months. Following this, October sees a slight decrease to 301 hours, suggesting that while the days are getting shorter, the allure of Wailea’s sun remains inviting. Overall, September represents a sweet spot in the annual sunshine cycle, offering both warmth and the potential for stunning sunsets as the days begin to transition into autumn.

Monthly Sunshine Duration in Wailea: September Highlighted

The September sunshine duration represents the total number of hours Wailea 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.
JanFebMarAprMayJunJulAugSepOctNovDec224h257h291h310h335h341h348h335h316h301h271h264h
Data source: Wailea September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Wailea During September

September in Wailea brings a 58% chance of sunny weather, continuing the trend of pleasant conditions from the summer months. Following August’s peak of 69%, the transition into fall maintains a commendable likelihood of sunshine, making it a great time for outdoor activities. As we move into the latter part of the year, the chances of sun remain relatively high compared to the winter months, with October rising to 64% and November at 60%. This consistency in sunny weather not only highlights Wailea's appealing climate but also offers visitors and residents alike ample opportunities to soak in the sun before the cooler months arrive.

Percentage of Sunny Days in September in Wailea

The chart illustrates the percentage of sunny days in Wailea 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 Wailea experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec54%62%49%56%57%56%51%69%58%64%60%38%
Data source: Wailea September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Wailea in September

As September unfolds in Wailea, daylight hours settle at a comfortable 12 hours, mirroring the trends seen in the preceding months of April and August. This balance reflects the region's well-defined seasonal rhythm, where longer days peak in May through July, gracing residents and visitors with abundant sunshine. As summer wanes, the gradual decrease in daylight transitions into the shorter days of fall, leading into October's return to 11 hours of daylight. September serves as a gentle reminder of summer's lingering warmth, inviting outdoor activities while hinting at the cooler, cozy months ahead.

Average Daylight Hours in Wailea for September

The chart illustrates the variation in daylight duration in Wailea throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 1m11h 27m12h 2m12h 37m13h 7m13h 21m13h 13m12h 47m12h 13m11h 38m11h 7m10h 52m
Data source: Wailea daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Wailea

In Wailea, September brings a gentle breeze with an average wind speed of 3.2 m/s (7 mph), showcasing a slight drop from the summer peak. This month’s winds mirror the calm of June and May, offering a pleasant respite before the breezier October, which sees an uptick to 3.4 m/s (8 mph). As the year progresses, September's moderate winds maintain a delightful balance, typical of the region's overall trend. With the summer months generally featuring higher wind speeds, the transition into fall presents a more tranquil atmosphere, inviting visitors to enjoy the stunning views and warm tropical climate that characterize Wailea.

Average September Wind Speed in Wailea

The chart displays monthly wind speed patterns in Wailea, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.13.13.33.03.02.93.53.33.2 m/s3.42.43.2
Data source: Wailea September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Wailea Compares to Other Months

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

September weather typically boasts warmer temperatures, with a minimum of 22°C (72°F) and an average of 26°C (79°F), while January sees cooler temperatures, starting at a minimum of 17°C (63°F) and averaging 22°C (73°F). Both months experience similar precipitation patterns, with September receiving 19 mm (0.7 in) over 5 days and January slightly higher at 30 mm (1.2 in) across the same number of days. Additionally, September's humidity is notably higher at 84%, compared to January's more comfortable 78%. For more detailed insights on January conditions, check out Wailea weather in January.

September and February present notably different weather patterns. In September, temperatures range from a minimum of 22°C (72°F) to a maximum of 32°C (90°F), with an average of 26°C (79°F). Humidity is quite high at 84%, but precipitation is relatively low at 19 mm (0.7 in) over just 5 days. In contrast, February sees cooler temperatures, with a minimum of 16°C (60°F) and a maximum of 28°C (82°F), averaging 22°C (72°F). February experiences more precipitation, totaling 78 mm (3.1 in) across 9 days, and slightly lower humidity at 79%. For more detailed information, you can check out Wailea weather in February.

In September, the weather is typically warmer with average temperatures ranging from 22°C (72°F) to a high of 32°C (90°F), accompanied by relatively low precipitation of 19 mm (0.7 in) over about 5 days and high humidity at 84%. In contrast, March offers cooler temperatures, with a minimum of 17°C (62°F) and a maximum of 28°C (83°F), but experiences more rainfall, totaling 55 mm (2.2 in) across about 9 days, with slightly lower humidity at 79%. For more detailed information, you can check Wailea weather in March.

September and April weather shows some notable differences in temperature and precipitation. September generally features warmer temperatures, with minimums around 22°C (72°F) and maximums reaching up to 32°C (90°F), whereas April's temperatures range from a cooler minimum of 18°C (65°F) to a maximum of 29°C (84°F). Additionally, September tends to be drier, receiving only 19 mm (0.7 in) of precipitation over about 5 days, while April experiences more rain, averaging 52 mm (2.1 in) across about 10 days. Despite the slight difference in humidity, with September at 84% and April at 82%, both months offer a warm, tropical feel. For more specific information about April weather, you can visit Wailea weather in April.

When comparing the weather in September and May, both months exhibit warm temperatures, but September generally feels a bit hotter. In September, the minimum temperature is around 22°C (72°F), with an average of 26°C (79°F) and a maximum of 32°C (90°F). In contrast, May sees slightly cooler temperatures, with a minimum of 18°C (65°F), an average of 24°C (76°F), and a maximum of 30°C (87°F).

Precipitation levels also differ; September receives about 19 mm (0.7 in) over approximately 5 days, while May tends to be wetter, with 37 mm (1.5 in) over 6 days. Humidity levels are similar in both months, hovering around 84% in September and 83% in May, making both months feel quite humid. For more detailed weather insights, check out Wailea weather in May.

When comparing the weather in September and June, both months exhibit a warm climate with high humidity levels at 84%. September features slightly warmer temperatures, with a minimum of 22°C (72°F), an average of 26°C (79°F), and a maximum of 32°C (90°F). In contrast, June has a minimum of 21°C (70°F), an average of 25°C (78°F), and a maximum of 30°C (87°F). Precipitation is modest in both months, with September receiving 19 mm (0.7 in) over 5 days and June a bit less at 15 mm (0.6 in) over 4 days. For those interested in further details about June weather, you can visit Wailea weather in June.

September and July exhibit quite similar weather patterns, with both months featuring average temperatures around 26°C (79°F). In September, the temperatures range from a minimum of 22°C (72°F) to a maximum of 32°C (90°F), while July shows a slight variation with temperatures ranging between 21°C (71°F) and 31°C (88°F). Precipitation in September is marginally lower at 19 mm (0.7 in) compared to July's 24 mm (0.9 in), although both months experience about five days of rain. Humidity remains high throughout both months, with September at 84% and July at 85%. For more specific details, you can check Wailea weather in July.

In comparing the weather of September to August, it's notable that both months share similar average temperatures, with September's range showing a minimum of 22°C (72°F) and a maximum of 32°C (90°F), closely mirroring August's temperatures. However, September experiences slightly less precipitation, totaling 19 mm (0.7 in) over 5 days, in contrast to August's 28 mm (1.1 in) with the same number of rainy days. Humidity remains high in both months, with September at 84% and August at 85%, contributing to a consistently warm and tropical environment. For more detailed information about August weather conditions, you can visit Wailea weather in August.

September typically offers warmer temperatures, with daytime averages around 26°C (79°F) and highs reaching up to 32°C (90°F). The month sees relatively low precipitation, averaging just 19 mm (0.7 in) over 5 days, while humidity remains high at 84%. In contrast, October experiences slightly cooler temperatures, with an average of 25°C (78°F) and a maximum of 31°C (88°F). However, it’s also wetter, receiving 50 mm (2.0 in) of rain over 8 days and maintaining a similar humidity level at 83%. For more detailed insights, check out the Wailea weather in October.

In September, the weather tends to be warmer, with average temperatures reaching 26°C (79°F) and maximums hitting up to 32°C (90°F). The humidity is relatively high at 84%, and the month sees about 19 mm (0.7 in) of precipitation over approximately five days. In contrast, November brings slightly cooler temperatures, with an average of 24°C (76°F) and maximums around 30°C (87°F). Precipitation increases slightly to 20 mm (0.8 in) across six days, while humidity dips to 82%. For more details on the weather in November, visit Wailea weather in November.

In September, the weather typically features warmer temperatures, with a minimum of 22°C (72°F) and an average of 26°C (79°F), reaching a maximum of 32°C (90°F). This month sees relatively low precipitation, totaling 19 mm (0.7 in) over about 5 rainy days, while humidity is relatively high at 84%.

In contrast, December brings cooler temperatures with a minimum of 17°C (63°F) and an average of 23°C (74°F), peaking at 29°C (84°F). The month is wetter, with precipitation reaching 45 mm (1.8 in) across around 8 days, and humidity slightly decreases to 81%. For those interested in how December's climate affects activities, Wailea weather in December provides additional insights.

Compare Wailea's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Wailea

In Wailea, September offers a delightful blend of warmth and comfort, with temperatures hovering comfortably in the mid-20s to low 30s °C (mid-70s to high 80s °F). This month stands out with relatively low precipitation, only about five days of light rainfall, making it a perfect time for outdoor adventures. The humidity remains on the higher side at 84%, but the gentle trade winds help to keep things pleasant. Compared to the peak summer months, September provides a slightly more relaxed atmosphere, ideal for those looking to escape the hustle and bustle. For a deeper dive into the nuances of Wailea's climate, check out Wailea Climate.