Last updated: June 24, 2025
In Martinsville, United States, the average temperature in September is a pleasant 22°C (72°F). Expect a temperature range that can dip to a cool 7°C (44°F) and soar to a warm 34°C (93°F). During this month, the area receives about 67 mm (2.6 in) of precipitation over approximately 6 days. With an average humidity of 79%, be prepared for a refreshing yet humid atmosphere!
In September in Martinsville, the average temperature is 22°C (72°F), with maximums reaching up to 34°C (93°F) and minimums dropping as low as 7°C (44°F). This pleasant range in temperatures makes Martinsville an ideal destination for travelers seeking a comfortable climate.
In Martinsville in September, the precipitation amount is 67 mm (2.6 in) over the course of 6 days.
In Martinsville in September humidity is 79%. With an average temperature of 22°C (72°F), this humidity feels like you are enveloped in a warm, heavy blanket, making it feel considerably hotter and adding a layer of stickiness to your skin as you navigate through the streets.
In Martinsville in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Martinsville.
UV Risk Categories
Weather in Martinsville varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Martinsville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (31°F) | 84 mm (3.3 inches) | 84% | moderate |
| February Weather | 1°C (35°F) | 90 mm (3.5 inches) | 82% | moderate |
| March Weather | 7°C (45°F) | 126 mm (4.9 inches) | 84% | high |
| April Weather | 12°C (54°F) | 116 mm (4.6 inches) | 83% | very high |
| May Weather | 19°C (67°F) | 135 mm (5.3 inches) | 80% | very high |
| June Weather | 24°C (76°F) | 108 mm (4.2 inches) | 83% | extreme |
| July Weather | 26°C (79°F) | 117 mm (4.6 inches) | 82% | very high |
| August Weather | 24°C (76°F) | 108 mm (4.3 inches) | 82% | very high |
| September Weather | 22°C (72°F) | 67 mm (2.6 inches) | 79% | very high |
| October Weather | 15°C (59°F) | 105 mm (4.1 inches) | 79% | high |
| November Weather | 6°C (43°F) | 93 mm (3.7 inches) | 88% | moderate |
| December Weather | 3°C (37°F) | 78 mm (3.1 inches) | 87% | moderate |