SeasonMapPortillo weather in May
Chile
May in Portillo: cold, a little rain, with clean air — a great time to visit.
#5 of 12 months in Portillo · #911 of 1383 destinations to visit in May · comfort 75/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Portillo in May
No notes yet. Open Portillo on the map to add the first one.
Portillo climate normals — May
| Daytime high | 6°C / 42°F | 🧥 cold |
|---|---|---|
| Nighttime low | -2°C / 29°F | |
| Feels like (high) | 2°C / 36°F | |
| Rainfall | 65 mm / 2.6 in | 🌦 some rain |
| Rainy days | 9 days | |
| Humidity | 55% | 🍃 comfortable |
| Dew point | -8°C / 18°F | |
| Sunshine | 8.5 h/day | |
| Daylight | 10.4 h | |
| Wind | 7 km/h / 4 mph | |
| Snowfall | 41.9 cm / 16.5 in | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Portillo in May
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.
Shoulder seasonan ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Portillo'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 weatherPortillo's weather peaks June–August.
Best weatherFair weatherToughest weather
What's on in Portillo in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Closed out of season
15 Oct – 10 Jun · usuallyOff-season shutdownClosuresThere is no summer operation: the hotel shuts, the road is just the road to Mendoza and there is nothing at the lake but the lake. Come for snow or not at all.
- Season
Snow season
Ski seasonAbout 42 cm of snow falls in the month.
from the climate normals
Nearby, and something's on
Within 300 km of Portillo — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Portillo?
Portillo in May — FAQ
- Is May a good time to visit Portillo?
- May in Portillo: cold, a little rain, with clean air — a great time to visit. It ranks #5 of 12 months for Portillo on SeasonMap's comfort score (75/100).
- What is the weather like in Portillo in May?
- In May, Portillo averages a daily high of 5.6°C and a low of -1.7°C, with about 65.3 mm of rain over roughly 8.6 rainy days.
- What is the air quality in Portillo in May?
- Portillo has a mean US Air Quality Index of about 35 in May.
- Does it snow in Portillo in May?
- Portillo sees roughly 41.9 cm of snowfall in May.
Other months in Portillo
Compare Portillo in May
Warmer or cooler than Portillo in May
Similar destinations in South America — May
Within 300 km: Mendoza's Vineyards turning around 10 Apr – 20 May, and Valle Nevado's Closed for the summer around 20 Oct – 10 Jun.