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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

  • 20/04/26

    13° 5%

  • 20/04/26

    13° 5%

  • 20/04/26

    11° 0%

  • 21/04/26

    7° 0%

Weather forecast for Brecon (13.1 miles away) updated 20/04/26 at 12:01. Powered by Met Office data.

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 Mon 20th Apr

Mon 20th Apr

Waxing Crescent
9 % illuminated
Dark from 00:22 to 03:41
Dark for 3h 19m
Moon phase on Tue 21st Apr

Tue 21st Apr

Waxing Crescent
17 % illuminated
Dark from 01:26 to 03:38
Dark for 2h 12m
Moon phase on Wed 22nd Apr

Wed 22nd Apr

Waxing Crescent
27 % illuminated
Dark from 02:09 to 03:36
Dark for 1h 27m
Moon phase on Thu 23rd Apr

Thu 23rd Apr

First Quarter
38 % illuminated
Dark from 02:37 to 03:33
Dark for 0h 56m
Moon phase on Fri 24th Apr

Fri 24th Apr

First Quarter
49 % illuminated
Dark from 02:57 to 03:31
Dark for 0h 34m
Moon phase on Sat 25th Apr

Sat 25th Apr

First Quarter
60 % illuminated
Dark from 03:12 to 03:28
Dark for 0h 16m
Moon phase on Sun 26th Apr

Sun 26th Apr

Waxing Gibbous
70 % illuminated
Dark from 03:24 to 03:25
Dark for 0h 1m

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

  • AstroCamp – Spring 2026

    Saturday 18th April 2026 from 12:00pm to Tuesday 21st April 2026 12:00pm

    Cwmdu Campsite, Crickhowell, NP8 1RU (21.8 miles away)

    More info

  • Swansea Astronomical Society meeting

    Thursday 30th April 2026 from 19:15pm to 21:15pm

    IQ Building - University of Wales Trinity Saint David, Swansea, SA1 8EW (24.6 miles away)

    More info

  • Port Talbot Astronomical Society meeting

    Tuesday 5th May 2026 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

    Wednesday 6th May 2026 from 23:00pm to Thursday 7th May 2026 00:30am

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

    More info

  • Stargazing in the Brecon Beacons with Dark Sky Wales

    Thursday 7th May 2026 from 23:00pm to Friday 8th May 2026 00:30am

    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