Punta Arenas weather in September
September in Punta Arenas: cold, a little rain, with clean air — a good time to visit.
#7 of 12 months in Punta Arenas · #716 of 897 destinations to visit in September · comfort 67/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Punta Arenas in September
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Punta Arenas climate normals — September
| Daytime high | 7°C / 44°F | 🧥 cold |
|---|---|---|
| Nighttime low | 2°C / 35°F | |
| Rainfall | 48 mm / 1.9 in | 🌦 some rain |
| Rainy days | 13 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 0°C / 32°F | |
| Sunshine | 7.7 h/day | |
| Daylight | 11.7 h | |
| Wind | 29 km/h / 18 mph | |
| Snowfall | 6.3 cm / 2.5 in | |
| Air quality (US AQI) | 29 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Punta Arenas?
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Punta Arenas in September — FAQ
- Is September a good time to visit Punta Arenas?
- September in Punta Arenas: cold, a little rain, with clean air — a good time to visit. It ranks #7 of 12 months for Punta Arenas on SeasonMap's comfort score (67/100).
- What is the weather like in Punta Arenas in September?
- In September, Punta Arenas averages a daily high of 6.7°C and a low of 1.9°C, with about 48.2 mm of rain over roughly 13.4 rainy days.
- What is the air quality in Punta Arenas in September?
- Punta Arenas has a mean US Air Quality Index of about 29 in September.
- Does it snow in Punta Arenas in September?
- Punta Arenas sees roughly 6.3 cm of snowfall in September.