September Weather in Blythe, United States

Last updated: June 24, 2025

In Blythe, United States, the average temperature for September hovers around 26°C (79°F), with a range that can dip to a cool 11°C (53°F) and soar to a sweltering 38°C (100°F). During this month, expect about 82 mm (3.2 in) of precipitation spread over 9 days, contributing to an average humidity of 83%.

September Temperature in Blythe

In September in Blythe, the average temperature is 26°C (79°F). Maximums can reach 38°C (100°F), while minimums can drop to as low as 11°C (53°F). This climate makes Blythe an ideal destination for travelers looking to enjoy warm weather while also being prepared for cooler 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 26°C (79°F), with highs reaching up to 38°C (100°F) and lows dropping to around 11°C (53°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 total precipitation amount is 82 mm (3.2 in), occurring over a span of 9 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 82 mm (3.2 inches) of precipitation spread over approximately 9 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 83%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket enveloping you, making travel an exercise in endurance as the air clings to your skin and saps your energy.

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 83%, 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 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 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 9, 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	10°C (49°F)	89 mm (3.5 inches)	86%	moderate
February Weather	13°C (55°F)	122 mm (4.8 inches)	81%	high
March Weather	15°C (60°F)	75 mm (3.0 inches)	81%	very high
April Weather	19°C (66°F)	101 mm (4.0 inches)	79%	very high
May Weather	24°C (75°F)	100 mm (3.9 inches)	75%	extreme
June Weather	26°C (80°F)	121 mm (4.8 inches)	75%	extreme
July Weather	28°C (83°F)	116 mm (4.6 inches)	80%	extreme
August Weather	27°C (82°F)	127 mm (5.0 inches)	81%	extreme
September Weather	26°C (79°F)	82 mm (3.2 inches)	83%	very high
October Weather	21°C (70°F)	98 mm (3.9 inches)	78%	very high
November Weather	13°C (56°F)	59 mm (2.3 inches)	85%	high
December Weather	11°C (52°F)	117 mm (4.6 inches)	87%	moderate