Last updated: June 24, 2025
In September, the average temperature in East Hampton, United States is a pleasant 19°C (67°F). Expect a minimum chill of 4°C (40°F) and a maximum warmth of 33°C (92°F). With an average humidity of 68%, you might feel a bit sticky at times. Be prepared for some rain, as precipitation typically reaches 97 mm (3.8 in) over about 9 days. Enjoy the varied climate!
In September in East Hampton, the average temperature is 19°C (67°F). Maximums can reach 33°C (92°F) while minimums can be as low as 4°C (40°F). This range makes it an ideal time for travelers to enjoy a variety of outdoor activities while also being prepared for cooler evenings.
In East Hampton in September, the total precipitation amount reaches 97 mm (3.8 in) over the course of 9 days.
In East Hampton in September, humidity is 68%. With an average temperature of 19°C (67°F), this humidity feels like a warm, enveloping blanket, making travel pleasant yet slightly muggy, which can be refreshing while exploring but may require occasional breaks to stay comfortable.
In East Hampton 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 East Hampton.
UV Risk Categories
Weather in East Hampton varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in East Hampton, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 0°C (32°F) | 69 mm (2.7 inches) | 84% | moderate |
February Weather | 1°C (34°F) | 89 mm (3.5 inches) | 82% | moderate |
March Weather | 4°C (40°F) | 92 mm (3.6 inches) | 81% | high |
April Weather | 9°C (49°F) | 127 mm (5.0 inches) | 78% | very high |
May Weather | 15°C (59°F) | 112 mm (4.4 inches) | 69% | very high |
June Weather | 20°C (69°F) | 92 mm (3.6 inches) | 69% | very high |
July Weather | 24°C (75°F) | 156 mm (6.1 inches) | 62% | very high |
August Weather | 23°C (74°F) | 99 mm (3.9 inches) | 65% | very high |
September Weather | 19°C (67°F) | 97 mm (3.8 inches) | 68% | very high |
October Weather | 14°C (58°F) | 130 mm (5.1 inches) | 74% | high |
November Weather | 7°C (44°F) | 92 mm (3.6 inches) | 82% | moderate |
December Weather | 2°C (36°F) | 131 mm (5.1 inches) | 80% | low |