nomadseason

September Weather in Harkers Island, United States

Last updated: June 24, 2025

In September, the average temperature in Harkers Island, United States is a comfortable 25°C (78°F). You can expect a minimum of 18°C (64°F) and a maximum of 30°C (87°F). Precipitation averages 202 mm (7.9 in) over 14 days, contributing to an average humidity of 80%—perfect for those who enjoy a lush, tropical atmosphere!

September Temperature in Harkers Island

In September in Harkers Island, the average temperature is 25°C (78°F). Maximum temperatures can reach 30°C (87°F), while minimums can drop as low as 18°C (64°F). This pleasant climate makes Harkers Island an ideal destination for travelers seeking comfortable weather and enjoyable outdoor activities.

September Weather in Harkers Island: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Harkers Island, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harkers Island, September typically has an average temperature of 25°C (78°F), with highs reaching up to 30°C (87°F) and lows dropping to around 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec515456637177808077716156
Data source: Temperature data for Harkers Island 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 Harkers Island

In Harkers Island in September, the total precipitation amount is 202 mm (7.9 in) recorded over a span of 14 days.

September Precipitation Trends in Harkers Island

The chart displays monthly precipitation patterns in Harkers Island, 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 Harkers Island, September typically receives around 202 mm (7.9 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec861408510510914516219420293117149
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Harkers Island

In Harkers Island in September, humidity is 80%. With an average temperature of 25°C (78°F), this humidity feels like a warm blanket enveloping you, making every outdoor activity feel more strenuous and steaming, while also causing you to seek out shade and refreshment more frequently.

September Average Humidity in Harkers Island

This chart illustrates the average monthly humidity levels in Harkers Island, 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 Harkers Island is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%81%80%80%81%82%83%83%80%80%83%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Harkers Island

In Harkers Island in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Harkers Island.

Maximum UV Index Levels in Harkers Island for September

The chart shows the monthly maximum UV Index (UVI) for Harkers Island 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 Harkers Island typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109854
Data source: Harkers Island 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 Harkers Island Compares to Other Months

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

This table compares monthly weather conditions in Harkers Island, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)86 mm (3.4 inches)84%moderate
February Weather12°C (55°F)140 mm (5.5 inches)81%high
March Weather14°C (57°F)85 mm (3.3 inches)80%very high
April Weather17°C (64°F)104 mm (4.1 inches)80%very high
May Weather22°C (71°F)109 mm (4.3 inches)81%extreme
June Weather25°C (77°F)145 mm (5.7 inches)82%extreme
July Weather27°C (81°F)162 mm (6.4 inches)83%extreme
August Weather27°C (80°F)194 mm (7.6 inches)82%very high
September Weather25°C (78°F)202 mm (7.9 inches)80%very high
October Weather22°C (72°F)93 mm (3.7 inches)79%very high
November Weather16°C (61°F)117 mm (4.6 inches)83%moderate
December Weather13°C (56°F)149 mm (5.8 inches)84%moderate

Compare Harkers Island's Climate with Cities Worldwide