One night
into Muharram
Muharram
محرم
Wed, 17 June 2026
UK sighting locations
Ranked by line-of-sight probability — the modelled chance that cloud in the crescent's direction is thin enough to see through at peak observing time.A clear sky overhead doesn't help if cloud sits on the horizon where the crescent will be.
The crescent's path over Strumble Head — scrub the timeline to see the cloud cover.
Tuesday, 16 June 2026
Only 49% chance the sightline clears — expect cloud in the moon's direction.
NW (307°) at 6.7°
49%
21:45 BST
Low 51%
Cloud puffs are sized by cover percentage and stacked by altitude (low / mid / high). A puff near the moon means the sightline is about to be blocked. A clear sky overhead doesn't mean a clear sightline — the crescent sits low on the WNW horizon, so cloud bands there matter most.
Sky clear overhead but 71% chance the moon's low sightline is blocked by cloud on the WNW horizon.
Sky clear overhead but 55% chance the moon's low sightline is blocked by cloud on the WNW horizon.
Sky clear overhead but 72% chance the moon's low sightline is blocked by cloud on the WNW horizon.
Only 49% chance the sightline clears — expect cloud in the moon's direction.
6/8 oktas
19 km/h
15 km
22:13 BST
Sky clear overhead but 71% chance the moon's low sightline is blocked by cloud on the WNW horizon.
0/8 oktas
19 km/h
20 km
22:01 BST
Sky clear overhead but 55% chance the moon's low sightline is blocked by cloud on the WNW horizon.
2/8 oktas
22 km/h
18 km
22:03 BST
Sky clear overhead but 72% chance the moon's low sightline is blocked by cloud on the WNW horizon.
2/8 oktas
19 km/h
20 km
22:12 BST
Only 38% chance the sightline clears — expect cloud in the moon's direction.
5/8 oktas
25 km/h
19 km
22:07 BST
How a month begins
How sighting, testimony and announcement work.
Past announcements
Preston, United Kingdom
صُومُوا لِرُؤْيَتِهِ وَأَفْطِرُوا لِرُؤْيَتِهِ، فَإِنْ غُمَّ عَلَيْكُمْ فَأَكْمِلُوا الْعِدَّةَ ثَلَاثِينَ
Fast when you see it (the crescent), and break your fast when you see it; and if it is overcast for you, complete the count of thirty days.