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September Weather in Kualapu'u, United States

Last updated: June 24, 2025

In Kualapu'u, United States, the average temperature in September hovers around 25°C (78°F), with a cozy minimum of 23°C (74°F) and a warm maximum of 27°C (81°F). Visitors can expect a total precipitation of 14 mm (0.6 in) over approximately 2 days, all while enjoying a comfortable average humidity of 84%.

September Temperature in Kualapu'u

In September in Kualapu'u, the average temperature is 25°C (78°F). Maximum can reach 27°C (81°F) and minimum can be as low as 23°C (74°F). This mild climate makes it an ideal destination for outdoor activities and exploring local attractions.

September Weather in Kualapu'u: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Kualapu'u, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kualapu'u, September typically has an average temperature of 25°C (78°F), with highs reaching up to 27°C (81°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec737272737476777777777674
Data source: Temperature data for Kualapu'u 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 Kualapu'u

In Kualapu'u in September, the precipitation amount is 14 mm (0.6 in) over a period of 2 days.

September Precipitation Trends in Kualapu'u

The chart displays monthly precipitation patterns in Kualapu'u, 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. In Kualapu'u, September typically receives around 14 mm (0.6 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec227745351810101114312157
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kualapu'u

In Kualapu'u in September, humidity is 84%. With an average temperature of 25°C (78°F), this humidity feels like a warm, muggy embrace that can be quite stifling for traveling, making you crave cool breezes and plenty of hydration as you explore.

September Average Humidity in Kualapu'u

This chart illustrates the average monthly humidity levels in Kualapu'u, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Kualapu'u is approximately 84%, offering insight into how humid the weather typically is during this month.
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 Kualapu'u

In Kualapu'u in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Kualapu'u.

Maximum UV Index Levels in Kualapu'u for September

The chart shows the monthly maximum UV Index (UVI) for Kualapu'u 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. In September, the maximum UV index in Kualapu'u typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810111212131313121188
Data source: Kualapu'u 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.

How September Weather in Kualapu'u Compares to Other Months

Weather in Kualapu'u varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Kualapu'u, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Kualapu'u, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (73°F)22 mm (0.9 inches)78%very high
February Weather22°C (72°F)77 mm (3.0 inches)79%very high
March Weather22°C (72°F)45 mm (1.8 inches)79%extreme
April Weather23°C (73°F)35 mm (1.4 inches)82%extreme
May Weather23°C (74°F)18 mm (0.7 inches)83%extreme
June Weather24°C (76°F)10 mm (0.4 inches)84%extreme
July Weather25°C (77°F)10 mm (0.4 inches)85%extreme
August Weather25°C (78°F)11 mm (0.4 inches)85%extreme
September Weather25°C (78°F)14 mm (0.6 inches)84%extreme
October Weather25°C (77°F)31 mm (1.2 inches)83%extreme
November Weather24°C (76°F)21 mm (0.8 inches)82%very high
December Weather23°C (74°F)57 mm (2.2 inches)81%very high

Compare Kualapu'u's Climate with Cities Worldwide