Last updated: August 23, 2025
In September, the average temperature in San Giuliano del Sannio, Italy hovers around 19°C (66°F), offering a pleasant atmosphere. Expect minimums dipping to 8°C (47°F) and maximums reaching up to 31°C (88°F). Precipitation is moderate, with about 49 mm (1.9 in) expected over 8 days, while the average humidity sits at a comfortable 65%. Whether you're planning outdoor adventures or cozy indoor retreats, this weather invites exploration!
In September in San Giuliano del Sannio, the average temperature is 19°C (66°F). Maximum temperatures can reach 31°C (88°F), while minimums can drop to as low as 8°C (47°F). This mild climate makes San Giuliano del Sannio a perfect destination for travelers seeking comfortable weather.
In San Giuliano del Sannio in September, the precipitation amount is 49 mm (1.9 in) spread over 8 days.
In San Giuliano del Sannio in September humidity is 65%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making outdoor activities refreshing but slightly sticky, so it's advisable to stay hydrated and take breaks in shaded areas while exploring.
In San Giuliano del Sannio 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 San Giuliano del Sannio.
UV Risk Categories
Weather in San Giuliano del Sannio varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Giuliano del Sannio, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 67 mm (2.6 inches) | 84% | moderate |
| February Weather | 6°C (44°F) | 80 mm (3.1 inches) | 76% | moderate |
| March Weather | 7°C (45°F) | 78 mm (3.1 inches) | 69% | high |
| April Weather | 11°C (52°F) | 69 mm (2.7 inches) | 70% | high |
| May Weather | 15°C (59°F) | 89 mm (3.5 inches) | 70% | very high |
| June Weather | 20°C (69°F) | 52 mm (2.0 inches) | 61% | very high |
| July Weather | 23°C (73°F) | 48 mm (1.9 inches) | 57% | very high |
| August Weather | 24°C (75°F) | 35 mm (1.4 inches) | 53% | very high |
| September Weather | 19°C (66°F) | 49 mm (1.9 inches) | 65% | very high |
| October Weather | 14°C (57°F) | 70 mm (2.8 inches) | 75% | high |
| November Weather | 10°C (51°F) | 128 mm (5.0 inches) | 81% | moderate |
| December Weather | 6°C (44°F) | 86 mm (3.4 inches) | 84% | low |