Castel San Giorgio Weather in September

September in Castel San Giorgio brings high temperatures around 25°C (77°F) during the day, dropping to 18°C (64°F) at night, with quite a bit of rainfall expected, averaging around 107 mm (4.2 in) for the month.

Rainfall in Castel San Giorgio in September

Records from the past 30 years suggest around 8 days of rain, with 107 mm (4.2 in) average for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Castel San Giorgio in September

September in Castel San Giorgio brings high temperatures, with highs of 25°C (77°F) and nights around 18°C (64°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 18°C (64°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Castel San Giorgio in September

Expect a lot of sunshine this month, with about 230 hours of sun. These sunny conditions add to the overall experience.

If you prefer dry days with pleasant temperatures, May, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.