Last updated: June 24, 2025
In Ester, United States, the average temperature in September hovers around 9°C (48°F), making it a cool time of year. Temperature extremes can range from a chilly -8°C (19°F) to a pleasantly warm 23°C (73°F). During this month, precipitation is typically around 47 mm (1.8 in), occurring over 9 days. Coupled with an average humidity of 90%, residents and visitors can expect a damp and refreshing atmosphere.
In September in Ester, the average temperature is 9°C (48°F), with maximums reaching 23°C (73°F) and minimums dropping as low as -8°C (19°F). This wide temperature range makes it essential for travelers to pack accordingly, ensuring they are prepared for both warm and cold conditions.
In Ester in September, the total precipitation amount is 47 mm (1.8 in), which falls over the course of 9 days.
In Ester in September, humidity is 90%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration quite uncomfortable and requiring heavier layers to stay warm and dry.
In Ester in September, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Ester, you can check the information here.
UV Risk Categories
Weather in Ester varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ester, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -20°C (-3°F) | 13 mm (0.5 inches) | 96% | low |
| February Weather | -17°C (2°F) | 25 mm (1.0 inches) | 93% | low |
| March Weather | -10°C (14°F) | 22 mm (0.8 inches) | 89% | low |
| April Weather | 0°C (33°F) | 21 mm (0.8 inches) | 85% | moderate |
| May Weather | 11°C (52°F) | 30 mm (1.2 inches) | 77% | moderate |
| June Weather | 17°C (62°F) | 63 mm (2.5 inches) | 78% | moderate |
| July Weather | 18°C (65°F) | 58 mm (2.3 inches) | 85% | moderate |
| August Weather | 14°C (58°F) | 115 mm (4.5 inches) | 88% | moderate |
| September Weather | 9°C (48°F) | 47 mm (1.8 inches) | 90% | moderate |
| October Weather | 0°C (33°F) | 40 mm (1.6 inches) | 97% | low |
| November Weather | -12°C (11°F) | 31 mm (1.2 inches) | 100% | low |
| December Weather | -15°C (5°F) | 33 mm (1.3 inches) | 99% | low |