Skip to content
Llyn Cwmffynnon - Photo 1
1 / 3
Photo: Llyn Cwmffynnon - geograph.org.uk - 222106.jpg via Wikidata Q6662934 License

Llyn Cwmffynnon

Lake

Cool today

Llyn Cwm-y-ffynnon is a lake in Snowdonia, below the summit of Moel Berfedd in Cwmffynnon. The lake's original name was Fynnon Mymbyr as outlined in Llywelyn ap Iorwerth's charter of 1198. As the name suggests, the lake nestles in a short valley, a cwm, high above the Pen-y-Gwryd hotel.

Interactive map not available

Weather at Llyn Cwmffynnon

46°F, Mist · H 48° / L 40° · 88% chance of rain
H: 48° L: 40°
Mist
Mist
46°
|
Feels like 44°
Precipitation
88%
Humidity
96%
Wind
4 mph
UV Index
1
12 AM
Overcast
47°
3 AM
Partly Cloudy
46°
6 AM
Overcast
48°
9 AM
Light drizzle
46°
12 PM
Light drizzle
42°
3 PM
Light rain
41°
6 PM
Light drizzle
43°
9 PM
Partly Cloudy
48°

Frequently asked questions

Where is Llyn Cwmffynnon?
Llyn Cwmffynnon is a lake in Wales.
Can you swim at Llyn Cwmffynnon?
There is no fixed answer for Llyn Cwmffynnon: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Llyn Cwmffynnon in Wales. Check current water conditions before you go, and follow posted signs and local guidance.

Location & Contact

Wales

🏞️ Best times & visiting tips
  • ›Check for boat launch facilities and fees
  • ›Obtain required fishing licenses before arrival
  • ›Be aware of lake-specific regulations and restrictions
  • ›Monitor water quality reports before swimming
</> Embed this location on your site

Paste this snippet into your website to show a live badge for Llyn Cwmffynnon — free to use with the included credit link.