Climbing Forecast › North Wales — Llandudno › Pen Trwyn

NORTH WALES — LLANDUDNO · LIMESTONE · tidal bird ban

Pen Trwyn climbing conditions

Poor — wet, too windy or closed

Right now

Temp19°C
Wind20.5 km/h
Gusts31 km/h
Humidity89.4%
Rain 48h0mm
Last rainNone recent

Assessment

0.3mm rain forecast
Tidal access: Base completely cut off at high tide — climb strictly 2h either side of low water.
Breezy — good for drying
loose_rock

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Friday 14 August
Poor
Temp19°C
Rain0.3mm
Wind19 km/h
Gusts31 km/h
Humidity86%
0.3mm rain forecast
  • Wet limestone is dangerously slippery
Time °C Rain Wind Gust Hum
06:00 19° 0mm 21 0 89.4%
07:00 20° 0mm 19 0 86.8%
08:00 21° 0mm 19 0 86.6%
09:00 21° 0mm 18 0 88.1%
10:00 21° 0.1mm 18 0 86.8%
11:00 21° 0.1mm 23 0 89.3%
12:00 20° 0.1mm 23 0 91.6%
13:00 19° 0mm 22 0 88.3%
14:00 18° 0mm 19 0 84.1%
15:00 18° 0mm 16 0 80.7%
16:00 18° 0mm 13 0 77.7%
17:00 18° 0mm 14 0 76.6%
18:00 18° 0mm 15 0 78.7%
19:00 17° 0mm 14 0 80.6%
20:00 17° 0mm 18 0 84.2%
21:00 17° 0mm 23 0 79.1%
Sat Saturday 15 August
Good
Temp17°C
Rain0mm
Wind19 km/h
Gusts—
Humidity78%
No recent rain
  • Limestone should be fine if dry
Time °C Rain Wind Gust Hum
06:00 16° 0mm 27 0 85.2%
07:00 16° 0mm 26 0 84.4%
08:00 16° 0mm 24 0 83.4%
09:00 16° 0mm 22 0 82%
10:00 16° 0mm 19 0 79.7%
11:00 17° 0mm 17 0 79%
12:00 17° 0mm 17 0 79.8%
13:00 17° 0mm 19 0 80.2%
14:00 17° 0mm 20 0 80%
15:00 17° 0mm 21 0 77%
16:00 16° 0mm 19 0 73%
17:00 16° 0mm 15 0 69.7%
18:00 16° 0mm 11 0 66.4%
19:00 16° 0mm 9 0 65.4%
20:00 15° 0mm 9 0 66.8%
21:00 16° 0mm 10 0 66.9%
Sun Sunday 16 August
Good
Temp18°C
Rain0.1mm
Wind15 km/h
Gusts—
Humidity66%
No recent rain
  • Limestone should be fine if dry
Time °C Rain Wind Gust Hum
06:00 15° 0mm 18 0 83.4%
07:00 16° 0mm 18 0 82.9%
08:00 16° 0mm 15 0 78.9%
09:00 17° 0mm 14 0 70.9%
10:00 18° 0mm 10 0 67%
11:00 19° 0mm 10 0 68.1%
12:00 19° 0mm 12 0 67.2%
13:00 19° 0mm 13 0 66.6%
14:00 18° 0mm 17 0 64.2%
15:00 19° 0mm 21 0 64.5%
16:00 18° 0mm 24 0 64.8%
17:00 18° 0mm 25 0 64.9%
18:00 18° 0.02mm 22 0 64.6%
Mon Monday 17 August
Good
Temp19°C
Rain0.1mm
Wind14 km/h
Gusts—
Humidity70%
No recent rain
  • Limestone should be fine if dry
Time °C Rain Wind Gust Hum
06:00 17° 0.02mm 17 0 90.2%
12:00 19° 0mm 14 0 69.9%
18:00 20° 0mm 8 0 69.4%
Tue Tuesday 18 August
Poor
Temp21°C
Rain1.4mm
Wind23 km/h
Gusts—
Humidity87%
1.4mm rain forecast
  • Wet limestone is dangerously slippery
  • Breezy — helps drying
Time °C Rain Wind Gust Hum
06:00 19° 0.58mm 23 0 87.8%
12:00 21° 0.65mm 23 0 87.2%
18:00 18° 0.13mm 10 0 89.3%
Wed Wednesday 19 August
Caution
Temp18°C
Rain0.1mm
Wind16 km/h
Gusts—
Humidity63%
Drying — 24h since rain
  • Limestone should be fine if dry
Time °C Rain Wind Gust Hum
06:00 15° 0.02mm 14 0 91.1%
12:00 18° 0mm 16 0 63.1%
18:00 17° 0mm 19 0 67.3%
Thu Thursday 20 August
Poor
Temp18°C
Rain0.4mm
Wind19 km/h
Gusts—
Humidity70%
0.4mm rain forecast
  • Wet limestone is dangerously slippery
Time °C Rain Wind Gust Hum
06:00 14° 0.05mm 17 0 87.9%
12:00 18° 0.13mm 19 0 69.5%
18:00 17° 0.13mm 19 0 77.4%
Fri Friday 21 August
Poor
Temp16°C
Rain3.3mm
Wind26 km/h
Gusts—
Humidity83%
3.3mm rain forecast
  • Wet limestone is dangerously slippery
  • Breezy — helps drying
Time °C Rain Wind Gust Hum
06:00 14° 2.7mm 23 0 91.1%
12:00 16° 0.38mm 26 0 83.3%
18:00 16° 0.05mm 20 0 82.7%
Sat Saturday 22 August
Poor
Temp16°C
Rain1.2mm
Wind15 km/h
Gusts—
Humidity83%
1.2mm rain forecast
  • Wet limestone is dangerously slippery
Time °C Rain Wind Gust Hum
06:00 14° 0.42mm 14 0 89.4%
12:00 16° 0.48mm 15 0 83.2%
18:00 15° 0.02mm 13 0 78.4%
Sun Sunday 23 August
Poor
Temp15°C
Rain0.6mm
Wind22 km/h
Gusts—
Humidity79%
0.6mm rain forecast
  • Wet limestone is dangerously slippery
  • Breezy — helps drying
Time °C Rain Wind Gust Hum
06:00 14° 0.2mm 18 0 86%
12:00 15° 0mm 22 0 78.8%
Tidal access
Base completely cut off at high tide — climb strictly 2h either side of low water.
Bird ban (03-01 to 07-31)
Bird ban enforced on specific sectors near seabird colonies; check local notices.
Pen Trwyn is an iconic limestone headland on the Great Orme near Llandudno, offering magnificent, sheer sea cliff climbing. The rock is dark, pocketed Carboniferous limestone featuring steep wall climbing, technical footwork, and pumpy hold sequences. Facing north directly over the sea, the cliff receives minimal sunshine and can retain sea dampness or seepage after rain. The venue is famous for serious traditional climbs and historical testpieces, dominated by routes like Mousetrap and Overhanging Wall. Access involves descending steep paths or abseiling from the Marine Drive toll road above. Absolute tidal cutoff, ocean swell hazards, and loose rock fragments on upper exit ramps demand careful planning.

About Pen Trwyn

Pen Trwyn is an iconic limestone headland on the Great Orme near Llandudno, offering magnificent, sheer sea cliff climbing. The rock is dark, pocketed Carboniferous limestone featuring steep wall climbing, technical footwork, and pumpy hold sequences. Facing north directly over the sea, the cliff receives minimal sunshine and can retain sea dampness or seepage after rain. The venue is famous for serious traditional climbs and historical testpieces, dominated by routes like Mousetrap and Overhanging Wall. Access involves descending steep paths or abseiling from the Marine Drive toll road above. Absolute tidal cutoff, ocean swell hazards, and loose rock fragments on upper exit ramps demand careful planning.

Region
North Wales — Llandudno
Rock type
limestone
Aspect
north-facing
Altitude
30m
Exposure
low
Seepage
medium

Other crags in this region

Little OrmeLower Pen TrwynMarine Drive (Great Orme)