74% chance of a view, in and out of it all day.
Cloud base sits about 137 m above the summit, so the top should stay under a ceiling rather than in it.
Forecast for Friday 16 October, built 2026-10-16 16:22 UTC and rebuilt twice a day. A high number is close to reliable, a low one is barely better than a shrug: how reliable is this?
Fri 16 Oct
74%
in and out of it all day
Sat 17 Oct
93%
clear of the cloud
Sun 18 Oct
94%
clear of the cloud
The hill
- Lists
- Hewitt, Nuttall, Marilyn
- Height
- 698 m (246 m of drop)
- Area
- The Moelwyns
- County
- Gwynedd, Wales
- Grid ref
- SH681474
- OS Landranger
- 115
- Summit
- rocky outcrop
Sun
- Sunrise
- 06:44 ESE
- Sunset
- 17:18 WSW
- Daylight
- 10.57 hours
About Allt-fawr
Allt-fawr is a mountain in Snowdonia, North Wales and forms part of the Moelwynion group.
From Wikipedia, CC BY-SA 4.0
Hour by hour, Friday 16 October
| Hour | View | Cloud base | Temp | Wind |
|---|---|---|---|---|
| 06:00 | 52% | 425 m | 5.1° | 20 WNW |
| 08:00 | 72% | 570 m | 4.8° | 20 WNW |
| 10:00 | 67% | 725 m | 5.2° | 19 WNW |
| 12:00 | 69% | 835 m | 5.5° | 16 NW |
| 14:00 | 75% | 976 m | 5.6° | 18 NW |
| 16:00 | 71% | 935 m | 5.5° | 16 WNW |
| 18:00 | 85% | 844 m | 5.5° | 12 WNW |
| 20:00 | 81% | 757 m | 5.4° | 21 NNW |
Nearby
Moel Druman · Ysgafell Wen · Ysgafell Wen North Top · Moel-yr-hydd · Moelwyn Mawr · Cnicht
All Snowdonia hills for Friday 16 October · The week ahead · How to read this