Last updated: June 24, 2025
In West Nyack, United States, the average temperature in September is a comfortable 20°C (69°F). However, temperatures can vary significantly, ranging from a chilly 7°C (45°F) to a warm 33°C (92°F). Expect about 106 mm (4.2 in) of precipitation spread over 10 days, with an average humidity level of 68%. Whether you're exploring or relaxing, be prepared for a mix of mild weather and occasional rain!
In September in West Nyack, the average temperature is 20°C (69°F). Maximum temperatures can reach 33°C (92°F), while minimums can drop as low as 7°C (45°F). This range makes West Nyack a pleasant destination for travelers looking to enjoy mild weather with some variety in temperature.
In West Nyack in September, the precipitation amount is 106 mm (4.2 in) over a span of 10 days.
In West Nyack in September, humidity is 68%. With an average temperature of 20°C (69°F), this humidity feels like a warm embrace, making outdoor exploration both refreshing and slightly sticky, requiring occasional breaks in the shade to stay comfortable while traveling.
In West Nyack 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 West Nyack.
UV Risk Categories
Weather in West Nyack varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in West Nyack, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (33°F) | 69 mm (2.7 inches) | 84% | moderate |
| February Weather | 2°C (35°F) | 98 mm (3.9 inches) | 82% | moderate |
| March Weather | 5°C (41°F) | 93 mm (3.7 inches) | 81% | high |
| April Weather | 10°C (51°F) | 114 mm (4.5 inches) | 78% | very high |
| May Weather | 16°C (61°F) | 121 mm (4.8 inches) | 69% | very high |
| June Weather | 21°C (71°F) | 95 mm (3.7 inches) | 69% | very high |
| July Weather | 25°C (77°F) | 149 mm (5.9 inches) | 62% | very high |
| August Weather | 24°C (75°F) | 129 mm (5.1 inches) | 65% | very high |
| September Weather | 20°C (69°F) | 106 mm (4.2 inches) | 68% | very high |
| October Weather | 15°C (59°F) | 135 mm (5.3 inches) | 74% | high |
| November Weather | 7°C (45°F) | 86 mm (3.4 inches) | 82% | moderate |
| December Weather | 3°C (37°F) | 109 mm (4.3 inches) | 80% | low |