September Weather in Huntsville

Last updated: March 2, 2024

The weather in Huntsville, United States, during September is characterized by an average temperature of 15°C (60°F). Highs can soar to 31°C (89°F), while lows may dip to -1°C (30°F). Typically, the humidity level in Huntsville throughout September hovers around 46%.

-1°C (30°F)

Minimum temperature

15°C (60°F)

Average temperature

31°C (89°F)

Maximum temperature

46%

Humidity

Precipitation and Sunshine hours

In September, Huntsville averages 37 mm (1.5 inches) of rainfall, typically over the course of 5 rainy days. The month enjoys an average of 12 hours 24 minutes of daylight, with the sun shining for approximately 10 hours 23 minutes each day. Additionally, there is a 78% probability of sunny days during this period.

37 mm (1.5 inches)

Precipitation

5 rainy days

Rainy days

10 hours 23 minutes

Sunshine hours

78%

Chance of sun

UV Index

In September, the UV Index in Huntsville reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00
UVI	1	1	2	4	6	8	9	9	8	5	3	2	1
Exposure	Low			Moderate	High	VeryHigh				Moderate		Low
Time to burn	45 min			30 min	25 min	15 min				30 min		45 min