September Weather in Blythe, United States

Last updated: June 24, 2025

In September, the average temperature in Blythe, United States reaches a warm 32°C (90°F). While it can drop to a comfortable minimum of 14°C (57°F), be prepared for the heat as temperatures can soar up to 48°C (119°F). Expect some light precipitation with an average of only 9 mm (0.3 in) over 2 days and a typical humidity level around 50%. Enjoy the sunny warmth, but stay hydrated!

September Temperature in Blythe

In September in Blythe, the average temperature is 32°C (90°F). Maximums can reach 48°C (119°F), and minimums can be as low as 14°C (57°F). Travelers should be prepared for extreme heat during the day and cooler temperatures in the evenings.

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

The chart illustrates September temperature patterns in Blythe, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Blythe, September typically has an average temperature of 32°C (90°F), with highs reaching up to 48°C (119°F) and lows dropping to around 14°C (57°F).

Data source: Temperature data for Blythe generated using information from the Copernicus Climate Change Service.

September Precipitation in Blythe

In Blythe in September, the precipitation amount is 9 mm (0.3 in) over a period of 2 days.

September Precipitation Trends in Blythe

The chart displays monthly precipitation patterns in Blythe, 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 Blythe, September typically receives around 9 mm (0.3 inches) of precipitation spread over approximately 2 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Blythe

In Blythe in September humidity is 50%. With an average temperature of 32°C (90°F), this humidity feels like a warm embrace, making it essential to stay hydrated and take frequent breaks while exploring the sights.

September Average Humidity in Blythe

This chart illustrates the average monthly humidity levels in Blythe, 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 Blythe is approximately 50%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Blythe

In Blythe in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Blythe.

Maximum UV Index Levels in Blythe for September

The chart shows the monthly maximum UV Index (UVI) for Blythe 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 Blythe typically reaches 10, which falls under the very high exposure category.

Data source: Blythe 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 Blythe Compares to Other Months

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

This table compares monthly weather conditions in Blythe, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	14°C (57°F)	10 mm (0.4 inches)	73%	moderate
February Weather	16°C (60°F)	15 mm (0.6 inches)	76%	high
March Weather	19°C (67°F)	13 mm (0.5 inches)	65%	very high
April Weather	25°C (76°F)	2 mm (0.1 inches)	50%	very high
May Weather	28°C (82°F)	2 mm (0.1 inches)	33%	extreme
June Weather	33°C (92°F)	0 mm (0.0 inches)	28%	extreme
July Weather	36°C (97°F)	10 mm (0.4 inches)	28%	extreme
August Weather	36°C (97°F)	11 mm (0.4 inches)	33%	extreme
September Weather	32°C (90°F)	9 mm (0.3 inches)	50%	very high
October Weather	25°C (77°F)	7 mm (0.3 inches)	61%	high
November Weather	19°C (66°F)	13 mm (0.5 inches)	70%	moderate
December Weather	13°C (56°F)	9 mm (0.3 inches)	78%	moderate