Last updated: June 24, 2025
In September, the average temperature in New Berlin, United States is a pleasant 21°C (71°F). Expect a range where the minimum dips to 6°C (42°F) and the maximum can soar to 34°C (94°F). Precipitation averages around 60 mm (2.4 in) over 6 days, coupled with an average humidity of 76%, making for a uniquely vibrant atmosphere.
In September in New Berlin, the average temperature is 21°C (71°F). Maximums can reach 34°C (94°F) and minimums can drop as low as 6°C (42°F). This range makes New Berlin an ideal destination for travelers seeking pleasant weather with the possibility of both warm days and cooler evenings.
In New Berlin in September, the total precipitation amount is 60 mm (2.4 in) spread over 6 days.
In New Berlin in September humidity is 76%. With an average temperature of 21°C (71°F), this humidity feels like a warm, enveloping blanket, making traveling both refreshing and a bit exhausting, as the air clings to your skin and you often find yourself reaching for water to stay hydrated.
In New Berlin 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 New Berlin.
UV Risk Categories
Weather in New Berlin varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in New Berlin, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 67 mm (2.6 inches) | 82% | moderate |
| February Weather | 0°C (32°F) | 67 mm (2.6 inches) | 80% | high |
| March Weather | 6°C (44°F) | 141 mm (5.5 inches) | 80% | high |
| April Weather | 11°C (53°F) | 133 mm (5.2 inches) | 80% | very high |
| May Weather | 19°C (66°F) | 148 mm (5.8 inches) | 82% | very high |
| June Weather | 24°C (75°F) | 132 mm (5.2 inches) | 83% | extreme |
| July Weather | 25°C (78°F) | 114 mm (4.5 inches) | 81% | extreme |
| August Weather | 23°C (75°F) | 88 mm (3.5 inches) | 80% | very high |
| September Weather | 21°C (71°F) | 60 mm (2.4 inches) | 76% | very high |
| October Weather | 14°C (57°F) | 105 mm (4.1 inches) | 76% | high |
| November Weather | 5°C (42°F) | 70 mm (2.8 inches) | 85% | moderate |
| December Weather | 2°C (36°F) | 50 mm (2.0 inches) | 86% | moderate |