Last updated: June 24, 2025
In Whitinsville, United States, the average temperature in September is a pleasant 19°C (66°F). Expect a range of temperatures, with a minimum of 4°C (39°F) and a maximum dipping up to 34°C (94°F). Rainfall is common, with an average precipitation of 92 mm (3.6 in) spread over 8 days, contributing to a 75% average humidity that adds to the region's vibrant atmosphere.
In September in Whitinsville, the average temperature is 19°C (66°F). Maximums can reach 34°C (94°F), while minimums can drop to as low as 4°C (39°F). This range of temperatures makes it essential for travelers to pack both lightweight clothing for warm days and layers for cooler evenings.
In Whitinsville in September, the precipitation amount is 92 mm (3.6 in), occurring over the course of 8 days.
In Whitinsville in September humidity is 75%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making it slightly uncomfortable for traveling as you navigate through the thick, muggy air.
In Whitinsville 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 Whitinsville.
UV Risk Categories
Weather in Whitinsville varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Whitinsville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (31°F) | 69 mm (2.7 inches) | 84% | moderate |
| February Weather | 0°C (33°F) | 87 mm (3.4 inches) | 84% | moderate |
| March Weather | 3°C (38°F) | 94 mm (3.7 inches) | 82% | high |
| April Weather | 9°C (48°F) | 128 mm (5.0 inches) | 79% | very high |
| May Weather | 15°C (59°F) | 102 mm (4.0 inches) | 75% | very high |
| June Weather | 20°C (68°F) | 92 mm (3.6 inches) | 78% | very high |
| July Weather | 23°C (74°F) | 144 mm (5.7 inches) | 76% | very high |
| August Weather | 23°C (73°F) | 102 mm (4.0 inches) | 76% | very high |
| September Weather | 19°C (66°F) | 92 mm (3.6 inches) | 75% | very high |
| October Weather | 13°C (56°F) | 141 mm (5.6 inches) | 75% | high |
| November Weather | 6°C (42°F) | 98 mm (3.9 inches) | 80% | moderate |
| December Weather | 1°C (34°F) | 123 mm (4.8 inches) | 80% | low |