International Dark Sky Week
International Dark Sky Week is held in April around the new moon, when night skies are darkest.
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Next date
Wednesday, 7 April 2027
2027 Dark Sky Week
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Upcoming dates
| Event | Date | Countdown | Region / notes |
|---|---|---|---|
| 2027 Dark Sky Week | Wednesday, 7 April 2027 | In 9 months | Around April new moon, verify exact dates |
| 2028 Dark Sky Week | Monday, 24 April 2028 | In 1 year 9 months | Around April new moon, verify exact dates |
International Dark Sky Week is organised by DarkSky International to celebrate dark skies and reduce light pollution. It takes place in April, during the week of the new moon when skies are darkest. UK dark sky places include Galloway Forest Park, Exmoor, Bannau Brycheiniog, Eryri, Northumberland, and Cranborne Chase. It is a good week to try naked-eye stargazing, join a local astronomy event, or review outdoor lighting at home.
outdoor gear
Dark sky guides, binoculars and outdoor gear
Verified 14 May 2026
Questions
When is International Dark Sky Week 2026?
DarkSky International lists 13-20 April 2026.
Why is it held near the new moon?
The new moon gives the darkest skies, making stars and faint objects easier to see.
Where are UK dark sky parks?
Galloway, Exmoor, Bannau Brycheiniog, Eryri, Northumberland, and Cranborne Chase are well-known UK dark sky areas.