Tregaer Mill Barn is a detached, stone-built gem, nestled in a breathtaking setting surrounded by rolling countryside with expansive views of the Black Mountains and Brecon Beacons.
Perfect for families and groups of friends, this beautifully converted barn features three bedrooms, three bathrooms, and a spacious living area.
You’ll be perfectly situated to explore the stunning landscapes of the Monmouthshire & Wye Valley countryside. And when night falls, the starry skies offer an unforgettable stargazing experience, making your stay at Tregaer Mill Barn truly magical.
Stay & gaze - this location benefits from dark skies, relatively low levels of light pollution, is astronomy friendly and suitable for stargazing breaks.
Accommodation provider
Host And Stay
Host and Stay offers a wide variety of accommodation options across the UK, many of which are located in dark sky areas and run by stargazing friendly providers.
Email: [email protected]
Website: https://hostandstay.co.uk
Weather forecast
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30/09/25
14° 1% -
30/09/25
10° 0% -
01/10/25
10° 1% -
01/10/25
9° 4%
Weather forecast for Monmouth Youth Hostel (4.4 miles away) updated 30/09/25 at 16:02.
Local light pollution
Tregaer Mill Barn is estimated to have light pollution levels similar to a 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.
Tue 30th Sep
Wed 1st Oct
Thu 2nd Oct
Fri 3rd Oct
Sat 4th Oct
Sun 5th Oct
Mon 6th Oct
Find more dates
If you are planning to visit this location check our dark sky calendar to find out when is best!
Calendar