Climbing Forecast › North Wales — Anglesey (Holy Island) › Porth Dafarch

NORTH WALES — ANGLESEY (HOLY ISLAND) · QUARTZITE · tidal

Porth Dafarch climbing conditions

Caution — drying out or marginal

Right now

Temp14°C
Wind41 km/h
Gusts62 km/h
Humidity81.4%
Rain 48hdry
Last rainNone recent

Assessment

No recent rain
Windy — 40 km/h, gusts 0 km/h
Tidal access: Sea-cliff — routes below the high-water mark are tidal. Check the local tide table and sea state before descending.
Good friction temperature range for quartzite

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Thursday 17 September
Caution
Temp15°C
Rain0.1mm
Wind40 km/h
Gusts62 km/h
Humidity75%
No recent rainWindy — 40 km/h, gusts 0 km/h
  • Quartzite holds friction well when dry
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
09:00 14° dry 41 — 81.4%
10:00 14° dry 41 — 80.8%
11:00 15° dry 43 — 76.9%
12:00 15° dry 41 — 76.1%
13:00 15° dry 39 — 74.8%
14:00 16° dry 39 — 72.1%
15:00 16° 0.1mm 39 — 72.1%
16:00 15° dry 42 — 71.1%
17:00 16° dry 35 — 72%
18:00 16° dry 39 — 71.2%
19:00 16° dry 43 — 72.5%
20:00 15° dry 42 — 72.9%
21:00 15° dry 40 — 74.3%
Fri Friday 18 September
Poor
Temp15°C
Rain6mm
Wind52 km/h
Gusts—
Humidity85%
5.6mm rain forecastWind 52 km/h, gusts 0 km/h — too windy
  • 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 — 79.1%
07:00 14° dry 32 — 80.3%
08:00 15° dry 39 — 83%
09:00 15° 0.3mm 40 — 82.9%
10:00 15° 0.2mm 52 — 81.1%
11:00 15° 0.4mm 48 — 82.4%
12:00 15° 2mm 53 — 82.3%
13:00 15° 1mm 57 — 80.3%
14:00 15° 1mm 55 — 86.1%
15:00 16° 0.2mm 47 — 90%
16:00 16° 0.1mm 50 — 90%
17:00 16° 0.3mm 47 — 89.6%
18:00 16° dry 46 — 89.8%
19:00 17° dry 45 — 89.2%
20:00 17° dry 44 — 88.5%
21:00 17° dry 46 — 89.1%
Sat Saturday 19 September
Poor
Temp16°C
Rain0.3mm
Wind32 km/h
Gusts—
Humidity82%
0.3mm rain forecast
  • Quartzite holds friction well when dry
  • Breezy — helps drying
Time °C Rain Wind (km/h) Gust Hum
06:00 16° 0.1mm 48 — 90.9%
07:00 17° dry 41 — 87.9%
08:00 17° 0.2mm 35 — 89.5%
09:00 16° dry 35 — 91.5%
10:00 17° dry 33 — 88.6%
11:00 16° dry 31 — 84.1%
12:00 16° dry 32 — 82.3%
13:00 16° dry 35 — 80.6%
14:00 17° dry 34 — 79.8%
15:00 17° dry 28 — 79.1%
16:00 17° dry 30 — 78.3%
17:00 17° dry 32 — 77.7%
18:00 16° dry 32 — 79.2%
19:00 16° dry 32 — 79.8%
20:00 16° dry 40 — 77.3%
21:00 16° dry 39 — 75%
Sun Sunday 20 September
Good
Temp14°C
Raindry
Wind26 km/h
Gusts—
Humidity79%
Should be dry
  • Quartzite holds friction well when dry
  • Breezy — helps drying
Time °C Rain Wind (km/h) Gust Hum
06:00 14° dry 35 — 77.1%
12:00 14° dry 26 — 78.6%
18:00 15° dry 15 — 73.6%
Mon Monday 21 September
Good
Temp16°C
Rain0.1mm
Wind27 km/h
Gusts—
Humidity89%
Should be dry
  • Quartzite holds friction well when dry
  • Breezy — helps drying
Time °C Rain Wind (km/h) Gust Hum
06:00 15° dry 25 — 85.3%
12:00 16° dry 27 — 89.1%
18:00 16° dry 22 — 94.6%
Tue Tuesday 22 September
Caution
Temp16°C
Raindry
Wind17 km/h
Gusts—
Humidity92%
Should be dryHumidity 92% — potential fog
  • Quartzite holds friction well when dry
Time °C Rain Wind (km/h) Gust Hum
06:00 16° dry 13 — 95.8%
12:00 16° dry 17 — 91.6%
18:00 16° dry 14 — 92.5%
Wed Wednesday 23 September
Good
Temp18°C
Raindry
Wind14 km/h
Gusts—
Humidity89%
Should be dry
  • Quartzite holds friction well when dry
Time °C Rain Wind (km/h) Gust Hum
06:00 14° dry 10 — 99.8%
12:00 18° dry 14 — 88.7%
18:00 18° dry 4 — 82.8%
Thu Thursday 24 September
Good
Temp18°C
Raindry
Wind29 km/h
Gusts—
Humidity79%
Should be dry
  • Quartzite holds friction well when dry
  • Breezy — helps drying
Time °C Rain Wind (km/h) Gust Hum
06:00 17° dry 22 — 84.3%
12:00 18° dry 29 — 78.9%
18:00 19° dry 34 — 78.6%
Tidal access
Sea-cliff — routes below the high-water mark are tidal. Check the local tide table and sea state before descending.

About Porth Dafarch

A small south-facing bay on the south-east of Holy Island with a selection of sea-cliff routes across various headlands and zawns. Rock is Cambrian meta-sedimentary — meta-sandstones, siltstones and quartzites of the South Stack Formation, eroded into sea cliffs and sea caves. Also Anglesey's iconic coasteering venue. Seasonal seabird nesting restrictions can apply to some sections during spring/summer — check BMC RAD before visiting.

Region
North Wales — Anglesey (Holy Island)
Rock type
Quartzite
Aspect
south-facing
Altitude
15m
Exposure
medium
Seepage
low

Other crags in this region

Trearddur Bay