Climbing Forecast › North Wales — Anglesey › Rhoscolyn

NORTH WALES — ANGLESEY · QUARTZITE · tidal bird ban

Rhoscolyn climbing conditions

Good — dry and climbable

Right now

Temp15°C
Wind14 km/h
Gusts21 km/h
Humidity71.5%
Rain 48h0.7mm
Last rain32h ago

Assessment

Should be dry
Tidal access: Lower ledges submerged at high tide — climb 3h either side of low water.
Good friction temperature range for quartzite

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Monday 28 September
Good
Temp0°C
Raindry
Wind14 km/h
Gusts21 km/h
Humidity72%
Should be dry
  • Quartzite holds friction well when dry
Time °C Rain Wind (km/h) Gust Hum
10:00 — dry — — null%
18:00 15° dry 14 — 71.5%
19:00 14° dry 17 — 83.8%
20:00 14° dry 17 — 85.4%
21:00 14° dry 20 — 77.7%
Tue Tuesday 29 September
Poor
Temp19°C
Rain6mm
Wind40 km/h
Gusts—
Humidity81%
5.9mm rain forecastWindy — 40 km/h, gusts 0 km/h
  • Wet quartzite is slippery but not damaged by climbing
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
06:00 15° dry 32 — 85.8%
07:00 15° dry 35 — 86.3%
08:00 16° dry 39 — 83.3%
09:00 16° dry 35 — 82.1%
10:00 17° dry 40 — 82.7%
11:00 18° dry 41 — 81.9%
12:00 18° dry 36 — 82%
13:00 20° dry 37 — 81.7%
14:00 20° dry 40 — 80.3%
15:00 21° dry 46 — 79.2%
16:00 21° dry 43 — 79.2%
17:00 21° dry 40 — 78.6%
18:00 21° dry 42 — 78.6%
19:00 20° 0.3mm 45 — 77.9%
20:00 20° dry 47 — 79.4%
21:00 20° 0.3mm 49 — 80.6%
Wed Wednesday 30 September
Poor
Temp17°C
Rain9mm
Wind43 km/h
Gusts—
Humidity80%
9.1mm rain forecastWindy — 43 km/h, gusts 0 km/h
  • Wet quartzite is slippery but not damaged by climbing
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
06:00 17° dry 36 — 86.5%
07:00 17° dry 41 — 86%
08:00 16° 0.1mm 39 — 84.6%
09:00 16° dry 41 — 82.8%
10:00 17° dry 44 — 82.2%
11:00 17° dry 45 — 79.3%
12:00 17° dry 44 — 81.3%
13:00 17° dry 44 — 78.6%
14:00 17° dry 41 — 80%
15:00 16° dry 44 — 78.9%
16:00 16° dry 40 — 79.6%
17:00 16° dry 39 — 82.9%
18:00 16° 0.3mm 37 — 84.9%
19:00 16° 0.2mm 40 — 80.2%
20:00 15° 0.6mm 36 — 81.4%
21:00 15° 0.5mm 36 — 82.6%
Thu Thursday 1 October
Poor
Temp16°C
Rain0.9mm
Wind31 km/h
Gusts—
Humidity68%
0.9mm rain forecast
  • Wet quartzite is slippery but not damaged by climbing
  • Breezy — helps drying
Time °C Rain Wind (km/h) Gust Hum
06:00 15° 0.1mm 27 — 71.6%
12:00 16° dry 31 — 67.8%
18:00 16° 0.3mm 36 — 74%
Fri Friday 2 October
Poor
Temp16°C
Rain2mm
Wind37 km/h
Gusts—
Humidity88%
1.9mm rain forecast
  • Wet quartzite is slippery but not damaged by climbing
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
06:00 16° 0.3mm 43 — 84.1%
12:00 16° dry 37 — 87.5%
18:00 17° dry 39 — 87.5%
Sat Saturday 3 October
Good
Temp14°C
Raindry
Wind9 km/h
Gusts—
Humidity74%
Should be dry
  • Quartzite holds friction well when dry
Time °C Rain Wind (km/h) Gust Hum
06:00 14° dry 17 — 81.4%
12:00 14° dry 9 — 74.1%
18:00 13° dry 10 — 73%
Sun Sunday 4 October
Good
Temp15°C
Raindry
Wind21 km/h
Gusts—
Humidity82%
Should be dry
  • Quartzite holds friction well when dry
  • Breezy — helps drying
Time °C Rain Wind (km/h) Gust Hum
06:00 14° dry 14 — 75.5%
12:00 15° dry 21 — 81.6%
18:00 15° dry 22 — 86.4%
Mon Monday 5 October
Caution
Temp15°C
Raindry
Wind24 km/h
Gusts—
Humidity97%
Should be dryHumidity 97% — potential fog
  • Quartzite holds friction well when dry
  • Breezy — helps drying
Time °C Rain Wind (km/h) Gust Hum
06:00 16° dry 21 — 92.7%
12:00 15° dry 24 — 97.2%
18:00 15° dry 23 — 87%
Tidal access
Lower ledges submerged at high tide — climb 3h either side of low water.
Bird ban (02-01 to 07-31)
Bird ban applies to selected sea caves and buttresses; follow local notices.

About Rhoscolyn

Rhoscolyn offers sensational sea cliff climbing on the southern tip of Holy Island, composed of colorful schist and quartzite rock. The rock is highly featured with juggy breaks, sharp flakes, and positive wall holds above turquoise sea inlets. Facing southwest, the cliffs act as a sun trap and dry rapidly in ocean breezes, making winter climbing feasible on clear days. Grade options are varied, ranging from accessible Severe cracks to technical E-grade testpieces like Electric Blue and Symphony Crack. The approach involves a simple fifteen-minute walk along coastal footpath trails from Rhoscolyn church or beach car park. Tidal flooding of lower platforms and sudden Atlantic ocean swells represent the main safety hazards.

Region
North Wales — Anglesey
Rock type
Quartzite
Aspect
south-west-facing
Altitude
20m
Exposure
low
Seepage
low

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