Závažná Poruba - Opalisko
Závažná Poruba - Opalisko is a ski area in Slovakia, at about 748 m. Its mapped area is about 1.1 km across, with 10 marked runs and 5 lifts (about 3.2 km of piste in all).
Over the last twelve winters the ERA5 weather model gives it 118 cm of snowfall a season, 2,117th (tied) of 3,069 worldwide and 22nd in Slovakia. It swings a lot from year to year: the biggest winter, 2018/19 (176 cm), brought more than 3 times as much as the leanest, 2024/25 (53 cm). January is usually the snowiest month, with about 37 cm.
Snow depth and the seven-day outlook appear here once snow starts to fall. Until then, the long-run record comes first.
Elevation of the ski area’s centre point, taken from a digital elevation model. It is not the base-to-summit range.
We do not show a snow depth here. The weather model we use reports snow lying on the ground — it knows nothing about grooming or snowmaking, and it is not the base depth a ski area publishes. In Japan we can check our figures against 234 weather stations. Outside Japan there is nothing to check them against, so we do not print a number we have not verified.
How much snow it gets
Measured by us across 3,069 ski areas by one identical method. These are not the resort’s own published figures.
Compared with what is nearby
Within 50 km straight line. Measured the same way, so the ranks compare directly. Ski areas a few kilometres apart share a weather grid cell and can return the same figure.
| Ski area | Distance | Seasonal snowfall | World rank |
|---|---|---|---|
| SKI centrum Demänová | 4.2 km | 106 cm | 2301 |
| Chopok Jasná | 9.6 km | 138 cm | 1829 |
| Skicentrum Žiar-Dolinky | 11 km | 129 cm | 1976 |
| Jasna Low Tatras | 11 km | 138 cm | 1829 |
| Chopok Juh | 13 km | 138 cm | 1829 |
When it falls, and how winters differ
Month by month
Month by month, the most snow falls in January. March brings 49% of January’s snowfall. That is a gentler fall than the median for ski areas in Slovakia (40%). In amount, March brings 18 cm, more than the median of 12 cm.
Winter by winter
Across the 12 winters measured, the average is 118 cm, and 6 of them fell short of it. The leanest was 2024/25 with 53 cm; the biggest was 2018/19 with 176 cm (3.3 times as much). For 74% of the 87 ski areas in Slovakia, the leanest winter was the same 2024/25: bad winters tend to hit a whole region at once.
Snowfall each winter (December–March total). The dashed line is the average; the numbers mark the leanest and the biggest winter.
Runs and lifts
Counted from the runs and lifts drawn on OpenStreetMap, within the boundary of the ski area. These are not the resort’s own published figures.
Run map
The shape of the mountain
Which way the slopes face
92% of the vertical on the runs descends to the north or east. Those slopes get the least sun, so the snow lasts longer.
By difficulty
Lift types
- Platter3
- Rope tow1
- Chairlift1
See past trail maps on Skimap.org ↗
Source: OpenSkiMap (© OpenStreetMap contributors, ODbL 1.0). How finely ski areas are drawn varies by region, so treat the counts as indicative. Vertical is the difference between the highest and lowest points of the mapped runs and lifts.
Map
Where it sits relative to nearby resorts. For a piste map, see the official site.
More places to look
Updated: 8 Oct 2026, 00:52