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Llyn y Fan Fawr - Photo 1
Photo: Llyn y Fan Fawr.jpg via Wikidata Q3397902 License

Llyn y Fan Fawr

Lake

Cool today

Llyn y Fan Fawr (Welsh for 'great lake of the peak') is a natural lake in the county of Powys, Wales. It lies at the foot of Fan Brycheiniog, the highest peak of the Black Mountain (Y Mynydd Du) range within the Brecon Beacons National Park. Created as a result of glacial action, it is one of the largest glacial lakes in southern Wales.

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Weather at Llyn y Fan Fawr

H: 70° L: 48°
Clear
Clear
53°
|
Feels like 51°
Precipitation
4%
Humidity
85%
Wind
5 mph
UV Index
0
Water Conditions:
🥶Too cold for most swimmers
12 AM
Clear
51°
3 AM
Clear
49°
6 AM
Clear
48°
9 AM
Sunny
54°
12 PM
Sunny
65°
3 PM
Sunny
70°
6 PM
Sunny
67°
9 PM
Clear
54°

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Frequently asked questions

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

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Best Times to Visit

🧥
Right Now
Cool weather - dress warmly
🏞️ Lakes 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
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Wales

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