Water conditions for swimmers, dippers & paddlers
Llyn Trawsfynydd conditions
Reservoir · Gwynedd · open water conditions information
View live conditions for Llyn Trawsfynydd →Llyn Trawsfynydd is a reservoir in Gwynedd, one of 13 Gwynedd inland waters covered by NippyIndex.
As an inland water it is not tidal, so NippyIndex shows weather and surface conditions for it rather than a sea-state reading.
The information shown is drawn from published weather data and a seasonal surface-temperature model for UK inland waters.
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