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Hertford Castle

Hertford Castle

Water Lane, Hertford, Hertfordshire, SG14 1HR, East of England

Best time to visit

Hertford 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

  • 08/06/26

    15° 60%

  • 08/06/26

    15° 5%

  • 08/06/26

    15° 1%

  • 09/06/26

    12° 0%

Weather forecast for Potters Bar (7.9 miles away) updated 08/06/26 at 12:01. Powered by Met Office data.

Local light pollution

Hertford Castle is estimated to have light pollution levels similar to a suburban location based on the latest data from the VIIRS satellite. For more advanced light pollution data, view this location on DarkSkySites.

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

Light pollution map of Hertford 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 Mon 8th Jun

Mon 8th Jun

Third Quarter
54 % illuminated
Dark from 22:16 to 00:32
Dark for 2h 15m
Moon phase on Tue 9th Jun

Tue 9th Jun

Third Quarter
44 % illuminated
Dark from 22:17 to 00:44
Dark for 2h 26m
Moon phase on Wed 10th Jun

Wed 10th Jun

Third Quarter
33 % illuminated
Dark from 22:19 to 00:57
Dark for 2h 37m
Moon phase on Thu 11th Jun

Thu 11th Jun

Waning Crescent
23 % illuminated
Dark from 22:20 to 01:15
Dark for 2h 54m
Moon phase on Fri 12th Jun

Fri 12th Jun

Waning Crescent
14 % illuminated
Dark from 22:21 to 01:37
Dark for 3h 15m
Moon phase on Sat 13th Jun

Sat 13th Jun

Waning Crescent
7 % illuminated
Dark from 22:22 to 01:37
Dark for 3h 14m
Moon phase on Sun 14th Jun

Sun 14th Jun

New Moon
2 % illuminated
Dark from 22:24 to 01:36
Dark for 3h 11m

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

  • Bayfordbury Observatory guided astronomy evening

    Wednesday 10th June 2026 from 18:00pm to 20:00pm

    Bayfordbury Observatory, Bayfordbury, SG13 8LD (1.7 miles away)

    More info

  • Hertford Astronomy Group meeting

    Wednesday 10th June 2026 from 20:00pm to 21:30pm

    University of Hertfordshire, Hatfield, AL10 9AA (7.6 miles away)

    More info

  • Informal observing evening with Crayford Manor Astronomical Society

    Thursday 11th June 2026 from 19:45pm to 21:30pm

    The Dick Chambers Observatory, Dartford, DA4 9HD (29.5 miles away)

    More info

  • Loughton Astronomical Society meeting and observing

    Thursday 11th June 2026 from 20:00pm to 22:00pm

    Theydon Bois Scout Hall, Epping, CM16 7EJ (11.4 miles away)

    More info

  • Public solar viewing at the Royal Observatory Greenwich

    Friday 12th June 2026 from 11:00am to 16:00pm

    Royal Observatory Greenwich, London, SE10 8XJ (22.2 miles away)

    More info

Stay and gaze nearby

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