Right now

Temp13°C

Wind21 km/h

Gusts31 km/h

Humidity83%

Rain 48hdry

Last rainNone recent

Assessment

0.3mm rain forecast

Breezy — good for drying

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Thursday 17 September

Poor

Temp14°C

Rain0.3mm

Wind21 km/h

Gusts31 km/h

Humidity70%

0.3mm rain forecast

Wet limestone is dangerously slippery
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

09:00 13° dry 21 — 83%

10:00 14° dry 21 — 75.9%

11:00 14° dry 20 — 70.8%

12:00 15° 0.1mm 21 — 68.4%

13:00 15° 0.2mm 22 — 67.5%

14:00 14° dry 23 — 68.4%

15:00 14° dry 21 — 69.3%

16:00 14° dry 22 — 71%

17:00 13° dry 21 — 75.8%

18:00 12° dry 19 — 80.3%

19:00 11° dry 16 — 86.2%

20:00 11° dry 16 — 88.4%

21:00 11° dry 17 — 89.7%

Fri Friday 18 September

Poor

Temp13°C

Rain0.4mm

Wind24 km/h

Gusts—

Humidity80%

0.4mm rain forecast

Wet limestone is dangerously slippery
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

06:00 10° dry 15 — 93.7%

07:00 11° dry 15 — 89.8%

08:00 12° dry 16 — 82.3%

09:00 12° dry 16 — 80.5%

10:00 13° dry 20 — 77.6%

11:00 13° dry 19 — 79.2%

12:00 13° dry 26 — 79.7%

13:00 14° 0.1mm 27 — 79.3%

14:00 14° 0.1mm 28 — 79.5%

15:00 14° dry 23 — 83.3%

16:00 14° dry 26 — 81.9%

17:00 14° 0.1mm 27 — 84.9%

18:00 13° 0.1mm 27 — 89%

19:00 14° dry 26 — 93.7%

20:00 14° dry 28 — 94.6%

21:00 14° dry 27 — 96.4%

Sat Saturday 19 September

Poor

Temp16°C

Rain8mm

Wind24 km/h

Gusts—

Humidity97%

8.3mm rain forecastHumidity 97% — likely fog/cloud

Wet limestone is dangerously slippery
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

06:00 14° 0.2mm 23 — 97%

07:00 14° 0.5mm 23 — 97.2%

08:00 14° 0.5mm 25 — 97.5%

09:00 15° 0.3mm 25 — 97.7%

10:00 15° 0.2mm 22 — 97.2%

11:00 16° 0.3mm 25 — 94.7%

12:00 16° 0.7mm 25 — 95.8%

13:00 16° 0.4mm 25 — 97.3%

14:00 16° 0.3mm 25 — 97.6%

15:00 16° 0.6mm 23 — 98%

16:00 16° 2mm 22 — 97.8%

17:00 15° 0.3mm 21 — 97.1%

18:00 15° 0.3mm 20 — 97.6%

19:00 15° 0.8mm 23 — 98%

20:00 15° 0.6mm 23 — 97.3%

21:00 15° dry 24 — 97%

Sun Sunday 20 September

Poor

Temp15°C

Raindry

Wind16 km/h

Gusts—

Humidity64%

Only 16h since rain — needs ~45h

Limestone should be fine if dry

Time °C Rain Wind (km/h) Gust Hum

06:00 11° dry 13 — 92.8%

12:00 15° dry 16 — 64%

18:00 12° dry 8 — 75%

Mon Monday 21 September

Caution

Temp16°C

Raindry

Wind5 km/h

Gusts—

Humidity63%

Drying — 40h since rain

Limestone should be fine if dry

Time °C Rain Wind (km/h) Gust Hum

06:00 8° dry 1 — 85.6%

12:00 16° dry 5 — 63.4%

18:00 15° dry 4 — 84.5%

Tue Tuesday 22 September

Good

Temp18°C

Rain0.1mm

Wind2 km/h

Gusts—

Humidity81%

Should be dry

Limestone should be fine if dry

Time °C Rain Wind (km/h) Gust Hum

06:00 12° dry 6 — 99.1%

12:00 18° dry 2 — 80.7%

18:00 17° dry 1 — 86.8%

Wed Wednesday 23 September

Good

Temp18°C

Raindry

Wind15 km/h

Gusts—

Humidity74%

Should be dry

Limestone should be fine if dry

Time °C Rain Wind (km/h) Gust Hum

06:00 13° dry 6 — 88.8%

12:00 18° dry 15 — 73.9%

18:00 17° dry 7 — 84.5%

Thu Thursday 24 September

Good

Temp18°C

Raindry

Wind15 km/h

Gusts—

Humidity68%

Should be dry

Limestone should be fine if dry

Time °C Rain Wind (km/h) Gust Hum

06:00 11° dry 8 — 96.9%

12:00 18° dry 15 — 68.1%

18:00 16° dry 12 — 64.2%

About Craig y Cilau

A limestone escarpment on the north side of Mynydd Llangatwg, about 2 miles south-west of Crickhowell, designated a National Nature Reserve in 1959. The cliff sits above Old Red Sandstone and below Twrch Sandstone; the limestone is riddled with natural caves and tunnels. Hard trad climbing on quality limestone.

Region: South Wales — Brecon Beacons
Rock type: Limestone
Aspect: north-facing
Altitude: 460m
Exposure: medium
Seepage: high