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September Weather in Nelliston, United States

Last updated: June 24, 2025

In September, the average temperature in Nelliston, United States hovers around 17°C (62°F). However, be prepared for a temperature range that can dip to a chilly 0°C (33°F) or soar up to a warm 32°C (89°F). Additionally, expect about 93 mm (3.6 in) of precipitation spread over approximately 10 days, with an average humidity of 72% lending a touch of moisture to the air.

September Temperature in Nelliston

In September in Nelliston, the average temperature is 17°C (62°F). Maximums can reach 32°C (89°F), while minimums can drop as low as 0°C (33°F). This diverse range of temperatures makes Nelliston an exciting destination for travelers looking to experience varied weather conditions.

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

The chart illustrates September temperature patterns in Nelliston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nelliston, September typically has an average temperature of 17°C (62°F), with highs reaching up to 32°C (89°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec232632455766716962513728
Data source: Temperature data for Nelliston 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 Nelliston

In Nelliston in September, the precipitation amount is 93 mm (3.6 in) over the course of 10 days.

September Precipitation Trends in Nelliston

The chart displays monthly precipitation patterns in Nelliston, 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 Nelliston, September typically receives around 93 mm (3.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec901089113012211012611593161112111
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nelliston

In Nelliston in September humidity is 72%. With an average temperature of 17°C (62°F), this humidity feels like a warm embrace, making it perfect for leisurely strolls but potentially heavy on the skin, prompting travelers to seek shade during midday excursions.

September Average Humidity in Nelliston

This chart illustrates the average monthly humidity levels in Nelliston, 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 Nelliston is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%76%72%67%64%72%81%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nelliston

In Nelliston in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Nelliston.

Maximum UV Index Levels in Nelliston for September

The chart shows the monthly maximum UV Index (UVI) for Nelliston 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 Nelliston typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910997632
Data source: Nelliston 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 Nelliston Compares to Other Months

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

This table compares monthly weather conditions in Nelliston, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)90 mm (3.5 inches)89%moderate
February Weather-3°C (26°F)108 mm (4.2 inches)88%moderate
March Weather0°C (33°F)91 mm (3.6 inches)86%high
April Weather7°C (45°F)130 mm (5.1 inches)84%very high
May Weather14°C (57°F)122 mm (4.8 inches)76%very high
June Weather19°C (66°F)110 mm (4.3 inches)72%very high
July Weather22°C (71°F)126 mm (5.0 inches)66%very high
August Weather21°C (69°F)115 mm (4.5 inches)64%very high
September Weather17°C (62°F)93 mm (3.6 inches)72%high
October Weather11°C (52°F)161 mm (6.3 inches)81%high
November Weather3°C (37°F)112 mm (4.4 inches)87%moderate
December Weather-2°C (29°F)111 mm (4.4 inches)84%low

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