Last updated: June 24, 2025
In September, the average temperature in Sidney, United States is a pleasant 21°C (71°F). Visitors can expect a minimum of 6°C (43°F) and a maximum of 36°C (97°F) during this time. However, be prepared for some rain, as 95 mm (3.7 in) of precipitation is likely over 9 days. With an average humidity of 75%, it's advisable to stay hydrated and enjoy the unique climate!
In September in Sidney, the average temperature is 21°C (71°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 6°C (43°F). Be prepared for a range of temperatures to ensure a comfortable and enjoyable travel experience.
In Sidney in September, the precipitation amount is 95 mm (3.7 in) over the course of 9 days.
In Sidney in September, humidity is 75%. With an average temperature of 21°C (71°F), this humidity feels like a warm blanket wrapping around you, making travel slightly uncomfortable but offering a lush, vibrant atmosphere that invites exploration at a leisurely pace.
In Sidney 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 Sidney.
UV Risk Categories
Weather in Sidney varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sidney, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -3°C (26°F) | 34 mm (1.3 inches) | 76% | moderate |
February Weather | -3°C (27°F) | 32 mm (1.3 inches) | 80% | moderate |
March Weather | 6°C (43°F) | 94 mm (3.7 inches) | 73% | high |
April Weather | 11°C (52°F) | 62 mm (2.4 inches) | 74% | very high |
May Weather | 18°C (64°F) | 147 mm (5.8 inches) | 78% | very high |
June Weather | 25°C (77°F) | 111 mm (4.4 inches) | 82% | very high |
July Weather | 26°C (79°F) | 91 mm (3.6 inches) | 83% | very high |
August Weather | 24°C (76°F) | 102 mm (4.0 inches) | 80% | very high |
September Weather | 21°C (71°F) | 95 mm (3.7 inches) | 75% | very high |
October Weather | 12°C (54°F) | 151 mm (5.9 inches) | 75% | high |
November Weather | 5°C (41°F) | 29 mm (1.2 inches) | 82% | moderate |
December Weather | 0°C (33°F) | 34 mm (1.3 inches) | 83% | moderate |