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September Weather in Kekaha, United States

Last updated: June 24, 2025

The average temperature in Kekaha, United States during September is 26°C (79°F), offering a delightful climate for outdoor activities. Expect temperatures to dip to a minimum of 22°C (72°F) and reach a maximum of 30°C (86°F). Be prepared for some rain, as the region experiences an average precipitation amount of 20 mm (0.8 in) over 4 days, combined with a humidity level of 82% for a tropical feel.

September Temperature in Kekaha

In September in Kekaha, the average temperature is 26°C (79°F), with maximums reaching 30°C (86°F) and minimums dipping as low as 22°C (72°F). This pleasant climate makes it an ideal time for exploring outdoor activities and enjoying the local attractions.

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

The chart illustrates September temperature patterns in Kekaha, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kekaha, September typically has an average temperature of 26°C (79°F), with highs reaching up to 30°C (86°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec727071737577787979777573
Data source: Temperature data for Kekaha 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 Kekaha

In Kekaha in September, the total precipitation amount is 20 mm (0.8 in) spread over a period of 4 days.

September Precipitation Trends in Kekaha

The chart displays monthly precipitation patterns in Kekaha, 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 Kekaha, September typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec196597372657171620663373
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kekaha

In Kekaha in September, humidity is 82%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket that envelops you, making outdoor activities feel more taxing and requiring frequent breaks to stay hydrated.

September Average Humidity in Kekaha

This chart illustrates the average monthly humidity levels in Kekaha, 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 Kekaha is approximately 82%, offering insight into how humid the weather typically is during this month.
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 Kekaha

In Kekaha 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 Kekaha.

Maximum UV Index Levels in Kekaha for September

The chart shows the monthly maximum UV Index (UVI) for Kekaha 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 Kekaha typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810111213131313121087
Data source: Kekaha 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 Kekaha Compares to Other Months

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

This table compares monthly weather conditions in Kekaha, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)19 mm (0.8 inches)78%very high
February Weather21°C (71°F)65 mm (2.6 inches)79%very high
March Weather22°C (71°F)97 mm (3.8 inches)78%extreme
April Weather23°C (73°F)37 mm (1.5 inches)81%extreme
May Weather24°C (75°F)26 mm (1.0 inches)82%extreme
June Weather25°C (77°F)57 mm (2.2 inches)82%extreme
July Weather26°C (78°F)17 mm (0.7 inches)83%extreme
August Weather26°C (79°F)16 mm (0.6 inches)83%extreme
September Weather26°C (79°F)20 mm (0.8 inches)82%extreme
October Weather25°C (77°F)66 mm (2.6 inches)81%very high
November Weather24°C (75°F)33 mm (1.3 inches)80%very high
December Weather23°C (73°F)73 mm (2.9 inches)79%high

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