Llyn Cwellyn
- Area
- 0.90 km²
- Tonight
- 7°CCloudy · Wind 24 km/h W
Llyn Cwellyn is a lake at 140 m above sea level in Wales, United Kingdom, 0.90 km² in area and 1.9 km long.
All facts
- Surface elevation
- 140 m
- Length
- 1.9 km
- Shoreline
- 4.6 km
Llyn Cwellyn in numbers
Shoreline from OpenStreetMap.
- Shoreline
- 4.6 km≈1¼ h to walk around
Llyn Cwellyn 3D map
Drag to orbit · click, then scroll to zoom (or Ctrl/⌘ + scroll) · One finger scrolls the page · two fingers orbit and zoom · 4 × 4 km
Llyn Cwellyn terrain and contours
20 m contours from the Copernicus GLO-30 terrain model. Click two points on the map to draw your own cross-section.Tap two points on the map to draw your own cross-section.
Llyn Cwellyn elevation profile
West → east through the centre
Llyn Cwellyn weather
Tonight · Cloudy · 7°C (45°F) · 0.7 mm · Wind 24 km/h W
Llyn Cwellyn forecast for about 140 m.
- Tonight7°0.7 mm24 km/h W
- Today7°13°20.3 mm56 km/h W
- Sun8°10°2.5 mm53 km/h W
- Mon8°14°16.9 mm44 km/h S
- Tue9°11°8.6 mm48 km/h SW
- Wed10°12°0.6 mm27 km/h SW
- Thu9°11°0.5 mm19 km/h S
- Fri10°13°3.3 mm21 km/h SE
- Sat7°10°3.2 mm19 km/h NW
- Sun5°7°9.5 mm22 km/h NW
Forecast data: MET Norway, CC BY 4.0; daily low and high, precipitation total and strongest wind from the hourly data, model run Oct 24, 01:17 UTC.
Camping & parking near Llyn Cwellyn
Campsites, parking, trailheads and mountain huts mapped in OpenStreetMap around Llyn Cwellyn, nearest first, by straight-line distance. Check access, fees and permits locally.
Nearest parking
0.5 km ENE
Nearest campsite
Cwellyn Arms Campsite
Nearest trailhead
Start of Llanberis Path (Snowdon)
Nearest caravan site
Llanberis Touring Park
Nearest hut
Fronwydyr
All mapped places 12
| Place | Distance |
|---|---|
| Parking | 0.5 km ENE |
| Parking | 0.6 km ENE |
| Cwellyn Arms CampsiteCampsite | 1.0 km SE |
| Parking | 1.1 km SE |
| Silver Birches CampingCampsite | 2.3 km NW |
| Talymignedd CampsiteCampsite | 3.3 km SW |
| Start of Llanberis Path (Snowdon)Trailhead | 5.0 km NNE |
| Llanberis Touring ParkCaravan site | 5.9 km N |
| FronwydyrHut | 6.0 km NE |
| Cwm Glas MawrHut | 6.4 km ENE |
| Tŷ PowdwrHut | 6.6 km NNE |
| BryntegCaravan site | 7.4 km NNW |
Slope
Share of the 4 × 4 km view by steepness, from the 30 m model.
Mixed terrain: gentle slopes, steep faces and everything between.
- Steeper than 30°
- 15.1% of the 16 km² view
- Relief in view
- 566 m low point 128 m
Land cover
ESA WorldCover 10 m classification of the same area.
Snow & ice means glaciers and year-round snow (a yearly average), not today’s snow cover.
Where Llyn Cwellyn sits
- Region
- Wales60United Kingdom371Europe2,143
Nearby places
Llyn PerisLake↑5.5 km NE
GlaslynLake↑5.7 km E
Llyn PadarnLake↑6.4 km N
Crib GochPeak · 923 m↑6.5 km E
Llyn LlydawLake · 436 m↑6.9 km E
More 1
Llyn Cwellyn downloads: topographic map, heightmap, STL 3D model and DEM
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Print & wall
3D printing & 3D apps
GIS & GPS
Free to use with credit: see the data sources
Data sources
- Terrain
- Produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The European Union, ESA, DLR and Airbus incur no liability for any use of this data and do not endorse this service.
- Imagery
- Contains modified Copernicus Sentinel data 2026 (scene 2026-07-15)
- Land cover
- © ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium
- Facts
- Wikidata (CC0)
- Camping & parking, Geometry
- © OpenStreetMap contributors (ODbL)
- Panorama
- Includes Copernicus WorldDEM-90 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The European Union, ESA, DLR and Airbus incur no liability for any use of this data and do not endorse this service.
- Forecast
- Weather forecast from MET Norway (CC BY 4.0)