Last updated: June 24, 2025
In September, the average temperature in Milan, United States is a warm 26°C (80°F). Expect a comfortable minimum of 13°C (56°F) and the possibility of rising to a sizzling 38°C (101°F). During this month, 107 mm (4.2 in) of precipitation may fall over 11 days, and you can anticipate an average humidity level of 83%, making for a lush but steamy atmosphere.
In September in Milan, the average temperature is 26°C (80°F). Maximums can reach 38°C (101°F), and minimums can be as low as 13°C (56°F). Visitors should be prepared for warm weather, with the possibility of cooler evenings, making it an ideal time for both outdoor adventures and leisurely explorations.
In Milan in September, the precipitation amount is 107 mm (4.2 in) spread over a period of 11 days.
In Milan in September humidity is 83%. With an average temperature of 26°C (80°F), this humidity feels like a warm, enveloping blanket that can make traveling quite uncomfortable; you may find yourself needing frequent breaks for hydration and cool shade as the thick air clings to your skin.
In Milan in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Milan.
UV Risk Categories
Weather in Milan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Milan, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 11°C (52°F) | 83 mm (3.2 inches) | 85% | moderate |
February Weather | 14°C (58°F) | 107 mm (4.2 inches) | 82% | high |
March Weather | 16°C (62°F) | 78 mm (3.1 inches) | 80% | very high |
April Weather | 20°C (67°F) | 88 mm (3.4 inches) | 76% | very high |
May Weather | 24°C (76°F) | 72 mm (2.8 inches) | 73% | extreme |
June Weather | 27°C (80°F) | 103 mm (4.1 inches) | 74% | extreme |
July Weather | 28°C (83°F) | 118 mm (4.6 inches) | 80% | extreme |
August Weather | 28°C (82°F) | 106 mm (4.2 inches) | 79% | extreme |
September Weather | 26°C (80°F) | 107 mm (4.2 inches) | 83% | very high |
October Weather | 22°C (72°F) | 89 mm (3.5 inches) | 77% | very high |
November Weather | 14°C (58°F) | 53 mm (2.1 inches) | 84% | high |
December Weather | 12°C (54°F) | 126 mm (4.9 inches) | 88% | moderate |