Remote location free from light pollution, visit on a night with no moon for the best starry skies!
Weather forecast
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14/05/21
10° 93% -
14/05/21
9° 91% -
15/05/21
8° 52% -
15/05/21
7° 88%
Weather forecast for Rhayader (4.8 miles away) updated 14/05/21 at 20:00.
Local light pollution
Elan Valley - Craig Goch Dam is estimated to have light pollution levels similar to a dark site location based on satellite data from CPRE.
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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.
Fri 14th May
Sat 15th May
Sun 16th May
Mon 17th May
Tue 18th May
Wed 19th May
Thu 20th May
Find more dates
If you are planning to visit this location check our dark sky calendar to find out when is best!
Calendar