Last updated: June 24, 2025
In September, the average temperature in Linn Valley, United States hovers around 22°C (72°F). Expect cool nights with a minimum temperature of 4°C (39°F), while the warmest days can reach a sizzling 33°C (93°F). Be prepared for some rain, as the area receives about 82 mm (3.2 in) of precipitation over the course of 7 days. With an average humidity of 72%, it's the perfect time to explore while staying hydrated!
In September in Linn Valley, the average temperature is 22°C (72°F), with maximums reaching up to 33°C (93°F) and minimums dropping as low as 4°C (39°F). This variation makes it essential for travelers to pack both lightweight clothing for the warm days and warmer layers for the cooler evenings.
In Linn Valley in September, the precipitation amount is 82 mm (3.2 in) over the course of 7 days.
In Linn Valley in September humidity is 72%. With an average temperature of 22°C (72°F), this humidity feels like you are stepping into a warm, embracing blanket, making traveling feel sweaty and slightly stifling, but the balmy weather is also quite perfect for exploring local attractions.
In Linn Valley in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Linn Valley.
UV Risk Categories
Weather in Linn Valley varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Linn Valley, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (33°F) | 61 mm (2.4 inches) | 80% | moderate |
| February Weather | 1°C (34°F) | 43 mm (1.7 inches) | 78% | moderate |
| March Weather | 8°C (48°F) | 103 mm (4.1 inches) | 75% | high |
| April Weather | 13°C (55°F) | 104 mm (4.1 inches) | 77% | very high |
| May Weather | 19°C (66°F) | 188 mm (7.4 inches) | 82% | very high |
| June Weather | 25°C (77°F) | 95 mm (3.7 inches) | 83% | extreme |
| July Weather | 27°C (80°F) | 126 mm (4.9 inches) | 81% | extreme |
| August Weather | 25°C (77°F) | 126 mm (5.0 inches) | 78% | very high |
| September Weather | 22°C (72°F) | 82 mm (3.2 inches) | 72% | very high |
| October Weather | 14°C (58°F) | 113 mm (4.4 inches) | 72% | high |
| November Weather | 7°C (45°F) | 47 mm (1.9 inches) | 84% | moderate |
| December Weather | 4°C (39°F) | 32 mm (1.3 inches) | 86% | moderate |