Last updated: June 24, 2025
In September, the average temperature in Bastrop, United States hovers around 27°C (81°F), with a minimum dip to 11°C (52°F) and a potential peak of 39°C (102°F). Expect 119 mm (4.7 in) of precipitation spread over 11 days, contributing to an average humidity of 73%. Whether you're basking in the warmth or dealing with cooling rain, this month promises a vibrant climate!
In September in Bastrop, the average temperature is 27°C (81°F). Maximum temperatures can reach 39°C (102°F), while minimums can drop as low as 11°C (52°F). This diverse temperature range makes Bastrop an ideal destination for travelers looking to experience both warm days and cooler evenings.
In Bastrop in September, the total precipitation amount is 119 mm (4.7 in), which occurs over the course of 11 days.
In Bastrop in September, humidity is 73%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket enveloping you, making outdoor activities feel sticky and heavy, while also requiring frequent hydration breaks to stay comfortable during your travels.
In Bastrop 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 Bastrop.
UV Risk Categories
Weather in Bastrop varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Bastrop, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 11°C (53°F) | 56 mm (2.2 inches) | 78% | moderate |
| February Weather | 12°C (55°F) | 63 mm (2.5 inches) | 81% | very high |
| March Weather | 18°C (65°F) | 72 mm (2.8 inches) | 76% | very high |
| April Weather | 21°C (69°F) | 112 mm (4.4 inches) | 79% | very high |
| May Weather | 25°C (78°F) | 148 mm (5.8 inches) | 79% | extreme |
| June Weather | 28°C (83°F) | 113 mm (4.5 inches) | 74% | extreme |
| July Weather | 29°C (85°F) | 86 mm (3.4 inches) | 71% | extreme |
| August Weather | 30°C (87°F) | 130 mm (5.1 inches) | 68% | extreme |
| September Weather | 27°C (81°F) | 119 mm (4.7 inches) | 73% | very high |
| October Weather | 22°C (72°F) | 81 mm (3.2 inches) | 75% | very high |
| November Weather | 16°C (61°F) | 65 mm (2.6 inches) | 78% | high |
| December Weather | 13°C (56°F) | 83 mm (3.3 inches) | 84% | moderate |