Llyn y Dywarchen is located above the village of Drws y Coed in Dyffryn Nantlle, near Rhyd Ddu. It is a very popular fishing lake, and has a car park nearby. Location given special mention as a great stargazing location on Snowdonia National Park website.
Weather forecast
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25/09/21
13° 8% -
25/09/21
13° 12% -
26/09/21
12° 20% -
26/09/21
11° 9%
Weather forecast for Grib Nantlle (nantlle Ridge) Y Garn (0.7 miles away) updated 25/09/21 at 04:00.
Local light pollution
Llyn y Dywarchen is estimated to have light pollution levels similar to adark site dark site location based on data from the VIIRS satellite.
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Urban
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Suburban
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Semi-rural
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Rural
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Dark site
The above demonstrates the estimated effect of light pollution - graphics created using Stellarium.
Best time to visit
The below chart shows when the skies will be at their darkest at this location and therefore the best time to visit. Moonlight is shown in light yellow and the Sun's twilight in light blue. Midnight on the date shown is shown as a white line with sunset to the left and sunrise the next morning to the right. A black background with stars shows the best times for stargazing. See our dark sky calendar for more details.
Sat 25th Sep
Sun 26th Sep
Mon 27th Sep
Tue 28th Sep
Wed 29th Sep
Thu 30th Sep
Fri 1st Oct
Find more dates
If you are planning to visit this location check our dark sky calendar to find out when is best!
Calendar