Santiago Weather in September

September in Santiago brings high temperatures, with highs of 28°C (82°F) and nights dropping to 18°C (64°F). It's the rainiest month of the year, so come prepared with waterproof gear.

Rainfall in Santiago in September

This month is characterized by heavy rain, often falling intensely. Equip yourself with a poncho to stay protected from the rain. Looking at the last 30 years, the data shows about 8 days with rain, averaging 194 mm (7.6 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Santiago in September

In September, expect high temperatures in Santiago, with highs of 28°C (82°F) and lows of 18°C (64°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 18°C (64°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Santiago in September

Expect a lot of sunshine this month, with about 200 hours of sun. These sunny conditions add to the overall experience.

September in Santiago has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.