67% chance of a view, in and out of it all day.
Cloud base sits about 15 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
67%
in and out of it all day
Sat 17 Oct
94%
clear of the cloud
Sun 18 Oct
94%
clear of the cloud
The hill
- Lists
- Hewitt, Nuttall, Marilyn
- Height
- 770 m (385 m of drop)
- Area
- The Moelwyns
- County
- Gwynedd, Wales
- Grid ref
- SH658448
- OS Landranger
- 124
- Summit
- ground next to trig point
Sun
- Sunrise
- 06:44 ESE
- Sunset
- 17:18 WSW
- Daylight
- 10.57 hours
About Moelwyn Mawr
Moelwyn Mawr is a mountain in Snowdonia, North Wales and forms part of the Moelwynion. Its summit overlooks the Vale of Ffestiniog and has views in all directions.
From Wikipedia, CC BY-SA 4.0
Hour by hour, Friday 16 October
| Hour | View | Cloud base | Temp | Wind |
|---|---|---|---|---|
| 06:00 | 41% | 383 m | 4.4° | 21 WNW |
| 08:00 | 52% | 504 m | 4.2° | 21 WNW |
| 10:00 | 64% | 677 m | 4.4° | 20 NW |
| 12:00 | 63% | 785 m | 4.7° | 18 NW |
| 14:00 | 71% | 923 m | 4.8° | 19 NW |
| 16:00 | 65% | 910 m | 4.9° | 17 NW |
| 18:00 | 81% | 769 m | 4.5° | 15 NW |
| 20:00 | 94% | 757 m | 4.9° | 24 N |
Nearby
Moelwyn Bach · Moel-yr-hydd · Cnicht · Moel Druman · Ysgafell Wen · Allt-fawr
All Snowdonia hills for Friday 16 October · The week ahead · How to read this