Last updated: August 23, 2025
In September, the average temperature in San Giacomo delle Segnate, Italy is a pleasant 21°C (70°F). However, be prepared for a range of conditions, as temperatures can dip as low as 9°C (48°F) and soar up to a sizzling 34°C (94°F). During this month, you can expect about 112 mm (4.4 in) of precipitation spread across 11 days, making the air quite humid at an average of 66%. Whether you're planning outdoor adventures or cozy indoor activities, September has something for everyone!
In September in San Giacomo delle Segnate, the average temperature is 21°C (70°F). The maximum can reach 34°C (94°F) and the minimum can be as low as 9°C (48°F). This makes it a perfect time for travelers to enjoy a variety of outdoor activities while being prepared for varying temperatures.
In San Giacomo delle Segnate in September, the precipitation amount is 112 mm (4.4 in) that occurs over the course of 11 days.
In San Giacomo delle Segnate in September humidity is 66%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making it comfortable for leisurely strolls but slightly sticky for longer excursions.
In San Giacomo delle Segnate in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in San Giacomo delle Segnate, you can refer to this Hourly UV Index in San Giacomo delle Segnate.
UV Risk Categories
Weather in San Giacomo delle Segnate varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Giacomo delle Segnate, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 23 mm (0.9 inches) | 87% | low |
| February Weather | 7°C (45°F) | 56 mm (2.2 inches) | 79% | moderate |
| March Weather | 10°C (50°F) | 50 mm (2.0 inches) | 69% | moderate |
| April Weather | 14°C (58°F) | 79 mm (3.1 inches) | 71% | high |
| May Weather | 19°C (66°F) | 117 mm (4.6 inches) | 70% | very high |
| June Weather | 24°C (76°F) | 63 mm (2.5 inches) | 65% | very high |
| July Weather | 26°C (79°F) | 92 mm (3.6 inches) | 61% | very high |
| August Weather | 26°C (79°F) | 85 mm (3.3 inches) | 54% | very high |
| September Weather | 21°C (70°F) | 112 mm (4.4 inches) | 66% | high |
| October Weather | 16°C (60°F) | 73 mm (2.9 inches) | 83% | moderate |
| November Weather | 10°C (51°F) | 116 mm (4.6 inches) | 88% | moderate |
| December Weather | 5°C (41°F) | 72 mm (2.8 inches) | 85% | low |