nomadseason

September Weather in Heyburn, United States

Last updated: June 24, 2025

In September, the average temperature in Heyburn, United States is a comfortable 18°C (64°F). However, be prepared for a temperature range that can drop to a chilly 0°C (32°F) or soar to a sizzling 39°C (102°F). Expect some precipitation, with approximately 20 mm (0.8 in) spread over 3 days, and enjoy average humidity levels around 46%. Adjust your plans accordingly to make the most of your visit!

September Temperature in Heyburn

In September in Heyburn, the average temperature is 18°C (64°F), with maximums reaching 39°C (102°F) and minimums dropping as low as 0°C (32°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates September temperature patterns in Heyburn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heyburn, September typically has an average temperature of 18°C (64°F), with highs reaching up to 39°C (102°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec293241485768777464483930
Data source: Temperature data for Heyburn 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 Heyburn

In Heyburn in September, the precipitation amount is 20 mm (0.8 in) accumulated over a period of 3 days.

September Precipitation Trends in Heyburn

The chart displays monthly precipitation patterns in Heyburn, 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 Heyburn, September typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec41493836472181520283038
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Heyburn

In Heyburn in September humidity is 46%. With an average temperature of 18°C (64°F), this humidity feels like a pleasant and comfortable experience for traveling, allowing for enjoyable outdoor activities without feeling overly sticky or oppressive.

September Average Humidity in Heyburn

This chart illustrates the average monthly humidity levels in Heyburn, 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 Heyburn is approximately 46%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%92%85%76%66%62%53%42%46%64%83%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Heyburn

In Heyburn 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 Heyburn.

Maximum UV Index Levels in Heyburn for September

The chart shows the monthly maximum UV Index (UVI) for Heyburn 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 Heyburn typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3578101111109643
Data source: Heyburn 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 Heyburn Compares to Other Months

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

This table compares monthly weather conditions in Heyburn, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)41 mm (1.6 inches)91%moderate
February Weather0°C (33°F)49 mm (1.9 inches)92%moderate
March Weather5°C (41°F)38 mm (1.5 inches)85%high
April Weather9°C (48°F)36 mm (1.4 inches)76%very high
May Weather14°C (57°F)47 mm (1.8 inches)66%very high
June Weather20°C (68°F)21 mm (0.8 inches)62%extreme
July Weather25°C (77°F)8 mm (0.3 inches)53%extreme
August Weather23°C (75°F)15 mm (0.6 inches)42%very high
September Weather18°C (64°F)20 mm (0.8 inches)46%very high
October Weather9°C (48°F)28 mm (1.1 inches)64%high
November Weather4°C (39°F)30 mm (1.2 inches)83%moderate
December Weather-1°C (30°F)38 mm (1.5 inches)87%moderate

Compare Heyburn's Climate with Cities Worldwide