September Weather in South Padre Island

Last updated: March 2, 2024

The weather in South Padre Island, United States, during September is characterized by an average temperature of 28°C (82°F). Highs can soar to 30°C (87°F), while lows may dip to 24°C (76°F). Typically, the humidity level in South Padre Island throughout September hovers around 77%.

24°C (76°F)

Minimum temperature

28°C (82°F)

Average temperature

30°C (87°F)

Maximum temperature

77%

Humidity

Precipitation and Sunshine hours

In September, South Padre Island averages 136 mm (5.3 inches) of rainfall, typically over the course of 17 rainy days. The month enjoys an average of 12 hours 15 minutes of daylight, with the sun shining for approximately 9 hours 45 minutes each day. Additionally, there is a 56% probability of sunny days during this period.

136 mm (5.3 inches)

Precipitation

17 rainy days

Rainy days

9 hours 45 minutes

Sunshine hours

56%

Chance of sun

UV Index

In September, the UV Index in South Padre Island reaches a maximum of 11, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 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	0	1	2	4	7	10	11	11	9	6	4	2	1
Exposure	Low			Moderate	High	VeryHigh	Extreme		VeryHigh	High	Moderate	Low
Time to burn	45 min			30 min	25 min	15 min	10 min		15 min	25 min	30 min	45 min