Weather forecast
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18/04/25
9° 98%
Weather forecast for Llantrisant (3.2 miles away) updated 18/04/25 at 20:00.
Local light pollution
Garth Hill - Cardiff is estimated to have light pollution levels similar to asemi-rural semi-rural 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.
Fri 18th Apr
Sat 19th Apr
Sun 20th Apr
Mon 21st Apr
Tue 22nd Apr
Wed 23rd Apr
Thu 24th Apr
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.