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September Weather in Bishop, United States

Last updated: June 24, 2025

In Bishop, United States, the average temperature in September hovers around 28°C (83°F), offering a warm and inviting atmosphere. Expect daily variations, with minimum temperatures dropping to 16°C (61°F) and maximums soaring to 37°C (99°F). Be prepared for some rain, as 107 mm (4.2 in) of precipitation is expected over 14 days, and stay comfortable with an average humidity of around 73%.

September Temperature in Bishop

In September in Bishop, the average temperature is 28°C (83°F). Maximums can reach 37°C (99°F) and minimums can be as low as 16°C (61°F). This makes Bishop a perfect destination for travelers looking to enjoy warm weather while still having the option for cooler evenings.

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

The chart illustrates September temperature patterns in Bishop, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bishop, September typically has an average temperature of 28°C (83°F), with highs reaching up to 37°C (99°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec596270748083858682766762
Data source: Temperature data for Bishop 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 Bishop

In Bishop in September, the precipitation amount is 107 mm (4.2 in) spread over a period of 14 days.

September Precipitation Trends in Bishop

The chart displays monthly precipitation patterns in Bishop, 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 Bishop, September typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec3122545112410711760107593839
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bishop

In Bishop in September, humidity is 73%. With an average temperature of 28°C (83°F), this humidity feels like a thick blanket enveloping your skin, making travel feel heavy and stifling, often requiring frequent breaks in shaded or air-conditioned areas to stay comfortable.

September Average Humidity in Bishop

This chart illustrates the average monthly humidity levels in Bishop, 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 Bishop is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%79%76%77%80%73%66%65%73%76%80%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bishop

In Bishop in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Bishop.

Maximum UV Index Levels in Bishop for September

The chart shows the monthly maximum UV Index (UVI) for Bishop 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 Bishop typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6810111112121211975
Data source: Bishop 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 Bishop Compares to Other Months

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

This table compares monthly weather conditions in Bishop, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)31 mm (1.2 inches)83%high
February Weather17°C (62°F)22 mm (0.9 inches)79%very high
March Weather21°C (70°F)54 mm (2.1 inches)76%very high
April Weather24°C (75°F)51 mm (2.0 inches)77%extreme
May Weather27°C (81°F)124 mm (4.9 inches)80%extreme
June Weather29°C (84°F)107 mm (4.2 inches)73%extreme
July Weather29°C (85°F)117 mm (4.6 inches)66%extreme
August Weather30°C (86°F)60 mm (2.4 inches)65%extreme
September Weather28°C (83°F)107 mm (4.2 inches)73%extreme
October Weather24°C (76°F)59 mm (2.3 inches)76%very high
November Weather19°C (67°F)38 mm (1.5 inches)80%high
December Weather17°C (62°F)39 mm (1.5 inches)86%moderate

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