Last updated: June 24, 2025
In September, the average temperature in Sam Rayburn, United States is a pleasant 26°C (80°F). However, temperatures can vary, dipping to a cool 14°C (57°F) and soaring up to a sweltering 39°C (102°F). Expect about 160 mm (6.3 in) of precipitation over 12 days, contributing to an average humidity of 72%. Whether you're exploring or relaxing, be prepared for a mix of warmth and the occasional shower!
In September in Sam Rayburn, the average temperature is 26°C (80°F). Maximum temperatures can reach 39°C (102°F) while minimums can drop to as low as 14°C (57°F). Be prepared for warm days and cooler evenings when traveling during this time.
In Sam Rayburn in September, the precipitation amount is 160 mm (6.3 in) over a span of 12 days.
In Sam Rayburn in September, humidity is 72%. With an average temperature of 26°C (80°F), this humidity feels like a warm embrace, making traveling feel a bit heavier, yet invigorating as you navigate the vibrant atmosphere, surrounded by the rich scents and lively sounds of the locale.
In Sam Rayburn 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 Sam Rayburn.
UV Risk Categories
Weather in Sam Rayburn varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sam Rayburn, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 11°C (52°F) | 107 mm (4.2 inches) | 81% | moderate |
| February Weather | 13°C (55°F) | 114 mm (4.5 inches) | 81% | very high |
| March Weather | 17°C (64°F) | 101 mm (4.0 inches) | 79% | very high |
| April Weather | 20°C (68°F) | 132 mm (5.2 inches) | 80% | very high |
| May Weather | 24°C (76°F) | 184 mm (7.2 inches) | 81% | extreme |
| June Weather | 27°C (81°F) | 150 mm (5.9 inches) | 76% | extreme |
| July Weather | 28°C (83°F) | 98 mm (3.8 inches) | 73% | extreme |
| August Weather | 28°C (83°F) | 183 mm (7.2 inches) | 71% | extreme |
| September Weather | 26°C (80°F) | 160 mm (6.3 inches) | 72% | very high |
| October Weather | 21°C (71°F) | 144 mm (5.7 inches) | 73% | very high |
| November Weather | 15°C (59°F) | 68 mm (2.7 inches) | 83% | high |
| December Weather | 13°C (55°F) | 133 mm (5.3 inches) | 88% | moderate |