SeasonMapValle Nevado weather in September
Chile
September in Valle Nevado: cold, a little rain, with reliable snow — an excellent time to visit.
#4 of 12 months in Valle Nevado · #546 of 1383 destinations to visit in September · comfort 84/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Valle Nevado in September
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Valle Nevado climate normals — September
| Daytime high | 2°C / 35°F | 🧥 cold |
|---|---|---|
| Nighttime low | -6°C / 20°F | |
| Feels like (high) | 0°C / 32°F | |
| Rainfall | 74 mm / 2.9 in | 🌦 some rain |
| Rainy days | 9 days | |
| Humidity | 58% | 🍃 comfortable |
| Dew point | -11°C / 12°F | |
| Sunshine | 10 h/day | |
| Daylight | 11.9 h | |
| Wind | 7 km/h / 4 mph | |
| Snowfall | 44.6 cm / 17.6 in | |
| Air quality (US AQI) | 69 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Valle Nevado in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyFiestas Patrias recess in Chile(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Valle Nevado's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherValle Nevado's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
What's on in Valle Nevado in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Rule
Chains on the Farellones road
1 Jun – 15 Oct · usuallyRiskClosuresThe only way up is sixty hairpins from Santiago, where the police check for chains and run the last stretch one way at fixed hours. Leave before seven or plan to sit in it. Source ↗
- Season
Ski season
19 Jun – 5 Oct · usuallyAbove the treeline at 3,000 metres with nothing around it but the Andes, running from about the third week of June to early October. A big year pushes the closing date well into October.
- Season
Snow season
Ski seasonAbout 45 cm of snow falls in the month.
from the climate normals
Nearby, and something's on
Within 300 km of Valle Nevado — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Valle Nevado?
Valle Nevado in September — FAQ
- Is September a good time to visit Valle Nevado?
- September in Valle Nevado: cold, a little rain, with reliable snow — an excellent time to visit. It ranks #4 of 12 months for Valle Nevado on SeasonMap's comfort score (84/100).
- What is the weather like in Valle Nevado in September?
- In September, Valle Nevado averages a daily high of 1.8°C and a low of -6.4°C, with about 73.8 mm of rain over roughly 9 rainy days.
- What is the air quality in Valle Nevado in September?
- Valle Nevado has a mean US Air Quality Index of about 69 in September.
- Does it snow in Valle Nevado in September?
- Valle Nevado sees roughly 44.6 cm of snowfall in September.
Other months in Valle Nevado
Compare Valle Nevado in September
Warmer or cooler than Valle Nevado in September
Similar destinations in South America — September
Within 300 km: Santiago's Ski season around 14 Jun – 4 Oct, and Portillo's Ski season around 20 Jun – 5 Oct.