Last updated: August 23, 2025
In Montecassiano, Italy, the average temperature in September hovers around 21°C (70°F). Expect a comfortable climate with minimum temperatures dipping to 8°C (47°F) and reaching up to a warm 33°C (92°F). However, be prepared for some rain, as precipitation amounts can reach 70 mm (2.7 in) over about 8 days. With an average humidity of 67%, it’s a month that combines warmth with a refreshing feel.
In September in Montecassiano, the average temperature is 21°C (70°F), with a maximum reaching 33°C (92°F) and a minimum dropping as low as 8°C (47°F). This makes it an ideal time for travelers who enjoy mild weather and are prepared for a range of temperatures during their stay.
In Montecassiano in September, the precipitation amount is 70 mm (2.7 in) spread over 8 days.
In Montecassiano in September humidity is 67%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making travel a bit stifling but still enjoyable if you're prepared with light clothing and plenty of water.
In Montecassiano in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Montecassiano.
UV Risk Categories
Weather in Montecassiano varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Montecassiano, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (43°F) | 54 mm (2.1 inches) | 85% | low |
| February Weather | 8°C (47°F) | 63 mm (2.5 inches) | 78% | moderate |
| March Weather | 10°C (50°F) | 71 mm (2.8 inches) | 69% | high |
| April Weather | 13°C (56°F) | 54 mm (2.1 inches) | 71% | high |
| May Weather | 18°C (65°F) | 91 mm (3.6 inches) | 71% | very high |
| June Weather | 23°C (74°F) | 30 mm (1.2 inches) | 63% | very high |
| July Weather | 25°C (78°F) | 41 mm (1.6 inches) | 59% | very high |
| August Weather | 26°C (79°F) | 29 mm (1.2 inches) | 54% | very high |
| September Weather | 21°C (70°F) | 70 mm (2.7 inches) | 67% | high |
| October Weather | 16°C (61°F) | 50 mm (2.0 inches) | 78% | moderate |
| November Weather | 12°C (54°F) | 103 mm (4.1 inches) | 84% | moderate |
| December Weather | 8°C (46°F) | 81 mm (3.2 inches) | 86% | low |