Skip to content
Satellite view of Llyn Stwlan

Llyn Stwlan

Reservoir

Cool today

reservoir lake in Gwynedd, Wales which produces hydroelectric power

Interactive map not available

Weather at Llyn Stwlan

H: 66° L: 50°
Clear
Clear
52°
|
Feels like 49°
Precipitation
5%
Humidity
81%
Wind
6 mph
UV Index
0
Water Conditions:
🥶Too cold for most swimmers
12 AM
Clear
52°
3 AM
Clear
51°
6 AM
Clear
50°
9 AM
Sunny
57°
12 PM
Sunny
63°
3 PM
Sunny
66°
6 PM
Sunny
65°
9 PM
Clear
58°

Sponsored gear checklist

Pack smarter for Llyn Stwlan

Useful gear categories for this kind of water spot. These links open Amazon search results so you can compare current options.

As an Amazon Associate we earn from qualifying purchases.

Frequently asked questions

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

Visitor Reviews

Be the first to share your experience here

Join our community to share your water adventures

Earn badges as you share your experiences!

💧 Droplet💦 Stream🌊 Wave💧 Current🌀 Tide🌊 Ocean

No reviews yet — share what you know

Been here? A quick note helps the next visitor plan their day. Handy things to mention:

Water temperatureCrowds & parkingBest time to goSafety & access

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

</> Embed this location on your site

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