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Brecon - Usk Reservoir

Brecon - Usk Reservoir

Near Trecastle, Brecon, Powys, LD3, Wales

Best time to visit

Brecon - Usk Reservoir is a Dark Sky Discovery Site, an officially recognised place where anyone can stargaze. Most such locations have overnight parking (sometimes with a fee); however, many do not allow overnight camping. There may or may not be toilet facilities.

Weather forecast

  • 04/10/25

    10° 48%

  • 04/10/25

    10° 36%

  • 05/10/25

    9° 7%

  • 05/10/25

    9° 6%

Weather forecast for Glasfynydd Family Mountain Bike Route (0.1 miles away) updated 03/10/25 at 20:02.

Best time to visit

The Moon has a big impact on the visibility of celestial bodies in the night sky. Try to plan your stargazing when there is no bright Moon at night as this is when the skies will be at their darkest.

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.

Moon phase on Sat 4th Oct

Sat 4th Oct

Waxing Gibbous
87 % illuminated
Dark from 03:51 to 05:10
Dark for 1h 19m
Moon phase on Sun 5th Oct

Sun 5th Oct

Waxing Gibbous
94 % illuminated
NO DARKNESS
Moon phase on Mon 6th Oct

Mon 6th Oct

Full Moon
98 % illuminated
NO DARKNESS
Moon phase on Tue 7th Oct

Tue 7th Oct

Full Moon
100 % illuminated
NO DARKNESS
Moon phase on Wed 8th Oct

Wed 8th Oct

Full Moon
99 % illuminated
NO DARKNESS
Moon phase on Thu 9th Oct

Thu 9th Oct

Waning Gibbous
95 % illuminated
NO DARKNESS
Moon phase on Fri 10th Oct

Fri 10th Oct

Waning Gibbous
88 % illuminated
Dark from 18:44 to 05:20
Dark for 10h 35m

Find more dates

If you are planning to visit this location check our dark sky calendar to find out when is best!

Calendar

Events nearby

Display nearby events on a calendar

  • Heads of the Valley Astronomical Society meeting

    Tuesday 7th October 2025 from 19:00pm to 21:00pm

    Ebbw Vale Learning Action Centre, Ebbw Vale, NP23 6JG (23.8 miles away)

    More info

  • Port Talbot Astronomical Society meeting

    Tuesday 7th October 2025 from 19:00pm to 21:00pm

    Port Talbot Gas Welfare Club, Port Talbot, SA12 6BY (24.7 miles away)

    More info

  • Stargazing in the Brecon Beacons with Dark Sky Wales

    Tuesday 14th October 2025 from 20:30pm to 22:30pm

    Brecon - Libanus Mountain Centre, Brecon, LD3 8ER (9.0 miles away)

    More info

  • Stargazing and Astrophotography in Brecon with Dark Sky Wales

    Tuesday 14th October 2025 from 22:30pm to Wednesday 15th October 2025 00:30am

    Brecon - Libanus Mountain Centre, Brecon, LD3 8ER (9.0 miles away)

    More info

  • Stargazing in the Brecon Beacons with Dark Sky Wales

    Wednesday 15th October 2025 from 20:30pm to 22:30pm

    Brecon - Libanus Mountain Centre, Brecon, LD3 8ER (9.0 miles away)

    More info

Stay and gaze nearby

Stay at one of these stargazing-friendly accommodation providers.

  • Riverside Retreat Veterans Camp

    Cwmsawdde Farm, Llanddeusant, Dyfed, SA19 9UP (4.5 miles away)

    Stay & Gaze

    More info

  • Basel Cottage – Little Hall

    Little Hall, Llandovery, Dyfed, SA20 0YW (5.9 miles away)

    Stay & Gaze

    More info

  • The Bull Pens – Brecon

    Llanfihangel Nant Bran, Brecon, Powys, LD3 9LY (8.1 miles away)

    Stay & Gaze

    More info

  • Cambrian Escapes Dark Skies Camping

    Penstacan, Cilycwm, Dyfed, SA20 0TF (9.1 miles away)

    Stay & Gaze

    More info

  • Llanerchindda Farm

    Cynghordy, Llandovery, Dyfed, SA20 0NB (9.7 miles away)

    Stay & Gaze

    More info

  • Aberyscir Coach House – Brecon

    Aberyscir, Brecon, Powys, LD3 9NP (10.6 miles away)

    Stay & Gaze

    More info