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Harlech Castle

Harlech Castle

Twitil, Harlech, Gwynedd, LL46 2YH

Best time to visit

Harlech Castle is a private location and is only accessible out of normal hours for stargazing by prior arrangement or when public events are scheduled.

Weather forecast

  • 11/05/24

    20° 5%

  • 11/05/24

    18° 4%

  • 12/05/24

    18° 3%

  • 12/05/24

    16° 4%

Weather forecast for Harlech Castle (0.1 miles away) updated 11/05/24 at 12:00.

Local light pollution

Harlech Castle is estimated to have light pollution levels similar to asuburban suburban location based on the latest data from the VIIRS satellite.

The above demonstrates the estimated effect of light pollution - graphics created using Stellarium.

Light pollution map of Harlech Castle

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 11th May

Sat 11th May

Waxing Crescent
10 % illuminated
Dark from 00:47 to 02:40
Dark for 1h 53m
Moon phase on Sun 12th May

Sun 12th May

Waxing Crescent
18 % illuminated
Dark from 01:24 to 02:37
Dark for 1h 13m
Moon phase on Mon 13th May

Mon 13th May

Waxing Crescent
26 % illuminated
Dark from 01:48 to 02:34
Dark for 0h 46m
Moon phase on Tue 14th May

Tue 14th May

First Quarter
36 % illuminated
Dark from 02:05 to 02:32
Dark for 0h 27m
Moon phase on Wed 15th May

Wed 15th May

First Quarter
45 % illuminated
Dark from 02:17 to 02:29
Dark for 0h 12m
Moon phase on Thu 16th May

Thu 16th May

First Quarter
55 % illuminated
Dark from 21:55 to 02:27
Dark for 4h 31m
Moon phase on Fri 17th May

Fri 17th May

First Quarter
64 % illuminated
NO DARKNESS

Find more dates

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

Calendar

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