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September Weather in Basin City, United States

Last updated: June 24, 2025

In September, the average temperature in Basin City, United States hovers around 21°C (70°F), making it a pleasant time to visit. Expect minimum temperatures to drop to 5°C (42°F) and highs soaring to 40°C (104°F). With only 7 mm (0.3 in) of precipitation spread over 2 days, you can anticipate mostly dry weather. The average humidity sits at a comfortable 60%, adding to the overall enjoyable climate.

September Temperature in Basin City

In September in Basin City, the average temperature is 21°C (70°F). Maximum temperatures can reach 40°C (104°F), while minimums can dip as low as 5°C (42°F). Be prepared for a wide range of temperatures and pack accordingly for your travels.

September Weather in Basin City: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Basin City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Basin City, September typically has an average temperature of 21°C (70°F), with highs reaching up to 40°C (104°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec353647576875828170544235
Data source: Temperature data for Basin City 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 Basin City

In Basin City in September, the precipitation amount is 7 mm (0.3 in) over a period of 2 days.

September Precipitation Trends in Basin City

The chart displays monthly precipitation patterns in Basin City, 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 Basin City, September typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec35332520106027222727
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Basin City

In Basin City in September humidity is 60%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making travel comfortable yet slightly sticky, as the air holds onto heat, adding a touch of clamminess that gently envelopes you while exploring.

September Average Humidity in Basin City

This chart illustrates the average monthly humidity levels in Basin City, 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 Basin City is approximately 60%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%82%77%79%77%62%60%80%87%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Basin City

In Basin City 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 Basin City.

Maximum UV Index Levels in Basin City for September

The chart shows the monthly maximum UV Index (UVI) for Basin City 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 Basin City typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2356991097532
Data source: Basin City 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 Basin City Compares to Other Months

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

This table compares monthly weather conditions in Basin City, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)35 mm (1.4 inches)85%low
February Weather2°C (36°F)33 mm (1.3 inches)86%moderate
March Weather8°C (47°F)25 mm (1.0 inches)86%moderate
April Weather14°C (57°F)20 mm (0.8 inches)82%high
May Weather20°C (68°F)10 mm (0.4 inches)77%very high
June Weather24°C (75°F)6 mm (0.2 inches)79%very high
July Weather28°C (83°F)0 mm (0.0 inches)77%very high
August Weather27°C (81°F)2 mm (0.1 inches)62%very high
September Weather21°C (70°F)7 mm (0.3 inches)60%high
October Weather12°C (54°F)22 mm (0.9 inches)80%moderate
November Weather6°C (42°F)27 mm (1.1 inches)87%moderate
December Weather2°C (36°F)27 mm (1.1 inches)86%low

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