Costermano Weather in September

September in Costermano brings high temperatures around 23°C (73°F) during the day, dropping to 15°C (59°F) at night, with quite a bit of rainfall expected, averaging around 110 mm (4.3 in) for the month.

Rainfall in Costermano in September

Historically, September sees about 9 days of rain, with a monthly average of 110 mm (4.3 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Costermano in September

In September, Costermano sees high temperatures, with highs of 23°C (73°F). Nights drop to around 15°C (59°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 15°C (59°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Costermano in September

Enjoy a sunny month with about 199 hours of sunshine, the clear skies make Costermano even more beautiful.

If you prefer dry days with pleasant temperatures, 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.