– Lat/Long: 33.47° S 69.82° W
Alto San Juan
Weather Forecast, ChileIssued: 1 am Mon 31 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 1 am Mon 31 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 1 am Mon 31 Aug Local Time
Updates in:
Update imminent hr min s
5 Alto San Juan Elevations: 5 Forecast Elevations: Days 1–3 Weather SummaryA heavy fall of snow, heaviest during Wed night. Extremely cold (max -12°C on Tue afternoon, min -19°C on Mon morning). Winds increasing (fresh winds from the SSW on Mon morning, stormy winds from the W by Wed night). | Days 4–6 Weather SummaryA light covering of new snow mostly falling on Thu morning. Extremely cold (max -16°C on Thu morning, min -22°C on Fri night). Winds decreasing (stormy winds from the W on Thu morning, gales from the W by Fri night). | |||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  | | |  | | | | | |  |  | | | |
some clouds | some clouds | some clouds | cloudy | light snow | light snow | light snow | light snow | heavy snow | light snow | light snow | light snow | some clouds | some clouds | clear | clear | some clouds | clear | |
Cloud base (m) | 4650 | 6350 | 6550 | 6100 | 5350 | 5800 | 4700 | 4600 | 4600 | 4800 | 4650 | 4900 | 4650 | 4750 | ||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | 1 | 1 | 3 | 4 | 16 | 3 | 2 | 1 | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -16 | -16 | -18 | -13 | -12 | -14 | -15 | -15 | -15 | -16 | -16 | -17 | -18 | -17 | -20 | -19 | -18 | -21 |
min °C | -19 | -17 | -19 | -16 | -13 | -15 | -15 | -15 | -16 | -16 | -17 | -20 | -20 | -18 | -22 | -21 | -19 | -22 |
chill °C | -31 | -31 | -34 | -30 | -27 | -30 | -30 | -31 | -33 | -34 | -35 | -38 | -39 | -35 | -40 | -39 | -37 | -40 |
Freezing level m | 2600 | 2650 | 2250 | 3150 | 3100 | 2800 | 2750 | 2750 | 2700 | 2600 | 2550 | 1750 | 2250 | 2200 | 1300 | 2200 | 2100 | 1300 |
 | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | 6:20 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — |
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Alto San Juan Weather (Days 0-3):
The weather forecast for Alto San Juan is: A heavy fall of snow, heaviest during Wed night. Extremely cold (max -12°C on Tue afternoon, min -19°C on Mon morning). Winds increasing (fresh winds from the SSW on Mon morning, stormy winds from the W by Wed night).
Alto San Juan Weather (Days 3-6):
A light covering of new snow mostly falling on Thu morning. Extremely cold (max -16°C on Thu morning, min -22°C on Fri night). Winds decreasing (stormy winds from the W on Thu morning, gales from the W by Fri night).
This table gives the weather forecast for Alto San Juan at the specific elevation of 5000 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Alto San Juan. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Chile.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
 | |||||
Llay Llay- Las Peñas | |||||
Mendoz / l Plumerillo Airport |  | ||||
 |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.