Go stargazing site - a place identified by the Go Stargazing team as a good spot to stargaze from. This is based on local light pollution levels, distance from nearby towns and cities and having somewhere safe to park. These locations tend to be remote car parks with no facilities.
Location events organiser
Elan Valley International Dark Sky Park organises events at this location
Please contact Elan Valley International Dark Sky Park directly with any enquiries relating to visiting this location
Email: [email protected]
Website: Elan Valley International Dark Sky Park
Twitter: @elan_valley
Facebook: Elan Valley International Dark Sky Park
Weather forecast
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17/09/25
16° 59% -
17/09/25
16° 59% -
18/09/25
16° 82% -
18/09/25
16° 83%
Weather forecast for Rhayader (4.4 miles away) updated 16/09/25 at 20:02.
Local light pollution
Gwaelod-y-rhos car park is estimated to have light pollution levels similar to a dark site location based on the latest 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.
Wed 17th Sep
Thu 18th Sep
Fri 19th Sep
Sat 20th Sep
Sun 21st Sep
Mon 22nd Sep
Tue 23rd Sep
Find more dates
If you are planning to visit this location check our dark sky calendar to find out when is best!
CalendarEvents nearby
Stay and gaze nearby
Stay at one of these stargazing-friendly accommodation providers.