Updated
Llyn Trawsfynydd is a large artificial reservoir situated near the village of Trawsfynydd in Gwynedd, North Wales. With a total surface area of 4.8 km2 (1,200 acres) the reservoir is slightly more extensive than Wales's largest natural lake, Llyn Tegid (Bala Lake) at 4.5 km2 (1,100 acres).
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Weather at Llyn Trawsfynydd
51°F, Light rain · H 46° / L 40° · 88% chance of rain3-day forecast
H: 46° L: 40°
Light rain
51°
|
Feels like 49°
Precipitation
88%
Humidity
82%
Wind
5 mph
UV Index
0
Weather notes:
🌧️Rain expected
12 AM
40°
3 AM
43°
6 AM
46°
9 AM
43°
12 PM
43°
3 PM
43°
6 PM
44°
9 PM
43°
Frequently asked questions
- Where is Llyn Trawsfynydd?
- Llyn Trawsfynydd is a reservoir in Wales.
- Can you swim at Llyn Trawsfynydd?
- There is no fixed answer for Llyn Trawsfynydd: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Llyn Trawsfynydd in Wales. Check current water conditions before you go, and follow posted signs and local guidance.
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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
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