Last updated: June 24, 2025
In League City, United States, the average temperature in September hovers around 27°C (81°F), with fluctuations ranging from a cool 14°C (58°F) to a warm 35°C (96°F). Visitors can expect 216 mm (8.5 in) of precipitation over approximately 16 days, contributing to a comfortable average humidity of 73%. Whether you're exploring local attractions or soaking in the scenery, be prepared for a diverse climate experience!
In September in League City, the average temperature is 27°C (81°F), with maximums reaching up to 35°C (96°F) and minimums dipping as low as 14°C (58°F). This pleasant climate makes League City an ideal destination for travelers seeking warm and enjoyable weather.
In League City in September, the precipitation amount is 216 mm (8.5 in) over the course of 16 days.
In League City 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 League City 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 League City.
UV Risk Categories
Weather in League City varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in League City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 13°C (55°F) | 78 mm (3.1 inches) | 78% | moderate |
| February Weather | 15°C (59°F) | 86 mm (3.4 inches) | 81% | very high |
| March Weather | 19°C (66°F) | 68 mm (2.7 inches) | 76% | very high |
| April Weather | 21°C (70°F) | 98 mm (3.9 inches) | 79% | extreme |
| May Weather | 25°C (77°F) | 168 mm (6.6 inches) | 79% | extreme |
| June Weather | 28°C (82°F) | 166 mm (6.5 inches) | 74% | extreme |
| July Weather | 28°C (83°F) | 150 mm (5.9 inches) | 71% | extreme |
| August Weather | 29°C (84°F) | 208 mm (8.2 inches) | 68% | extreme |
| September Weather | 27°C (81°F) | 216 mm (8.5 inches) | 73% | very high |
| October Weather | 23°C (73°F) | 121 mm (4.7 inches) | 75% | very high |
| November Weather | 17°C (63°F) | 78 mm (3.1 inches) | 78% | high |
| December Weather | 15°C (59°F) | 104 mm (4.1 inches) | 84% | moderate |