September Weather in Naalehu, United States

Last updated: June 24, 2025

In September, the average temperature in Naalehu, United States is a pleasant 25°C (78°F), with a minimum of 23°C (74°F) and a peak of 27°C (81°F). Expect a light touch of rainfall, averaging 19 mm (0.8 in) over 3 days, and enjoy the warm, inviting atmosphere with an average humidity of 82%.

September Temperature in Naalehu

In September in Naalehu, 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 Naalehu: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Naalehu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Naalehu, 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).

Data source: Temperature data for Naalehu generated using information from the Copernicus Climate Change Service.

September Precipitation in Naalehu

In Naalehu in September, the precipitation amount averaged 19 mm (0.8 in) over a span of 3 days.

September Precipitation Trends in Naalehu

The chart displays monthly precipitation patterns in Naalehu, 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 Naalehu, September typically receives around 19 mm (0.8 inches) of precipitation spread over approximately 3 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Naalehu

In Naalehu in September, humidity is 82%. With an average temperature of 25°C (78°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities a bit more challenging and encouraging you to seek shade or a cool spot during your travels.

September Average Humidity in Naalehu

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

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Naalehu

In Naalehu in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Naalehu.

Maximum UV Index Levels in Naalehu for September

The chart shows the monthly maximum UV Index (UVI) for Naalehu 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 Naalehu typically reaches 13, which falls under the extreme exposure category.

Data source: Naalehu 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 Naalehu Compares to Other Months

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

This table compares monthly weather conditions in Naalehu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (73°F)	30 mm (1.2 inches)	79%	very high
February Weather	22°C (72°F)	136 mm (5.4 inches)	79%	extreme
March Weather	22°C (73°F)	66 mm (2.6 inches)	77%	extreme
April Weather	23°C (74°F)	30 mm (1.2 inches)	80%	extreme
May Weather	23°C (74°F)	36 mm (1.4 inches)	80%	extreme
June Weather	24°C (76°F)	16 mm (0.6 inches)	82%	extreme
July Weather	25°C (77°F)	11 mm (0.4 inches)	83%	extreme
August Weather	25°C (78°F)	56 mm (2.2 inches)	84%	extreme
September Weather	25°C (78°F)	19 mm (0.8 inches)	82%	extreme
October Weather	25°C (77°F)	67 mm (2.6 inches)	83%	extreme
November Weather	24°C (76°F)	16 mm (0.6 inches)	83%	very high
December Weather	23°C (75°F)	64 mm (2.5 inches)	81%	very high