Climbing Forecast › Scotland - Central & Southern — Loch Lomond › Inversnaid (Crystal Crag)

SCOTLAND - CENTRAL & SOUTHERN — LOCH LOMOND · SCHIST

Inversnaid (Crystal Crag) climbing conditions

Poor — wet, too windy or closed

Right now

Temp13°C
Wind19 km/h
Gusts29 km/h
Humidity78.6%
Rain 48hdry
Last rainNone recent

Assessment

8.1mm rain forecast
Good friction temperature range for schist

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Wednesday 16 September
Poor
Temp12°C
Rain8mm
Wind19 km/h
Gusts29 km/h
Humidity81%
8.1mm rain forecast
  • Wet schist is slippery and slow to dry
Time °C Rain Wind (km/h) Gust Hum
15:00 13° dry 19 — 78.6%
16:00 11° 0.5mm 18 — 83.8%
17:00 11° 0.1mm 18 — 92.5%
18:00 10° 0.4mm 18 — 94.1%
19:00 10° 0.8mm 16 — 96.5%
20:00 10° 1mm 18 — 98.5%
21:00 10° 2mm 18 — 98.6%
Thu Thursday 17 September
Poor
Temp10°C
Rain9mm
Wind26 km/h
Gusts—
Humidity96%
9.1mm rain forecastHumidity 96% — potential fog
  • Wet schist is slippery and slow to dry
  • Damp air — slopers and friction edges may feel greasy
  • Breezy — helps drying
Time °C Rain Wind (km/h) Gust Hum
06:00 9° 0.4mm 19 — 97.5%
07:00 9° 0.4mm 23 — 97.3%
08:00 9° 0.7mm 22 — 97.6%
09:00 10° 0.6mm 24 — 97%
10:00 10° 1mm 24 — 96.5%
11:00 10° 1mm 25 — 97.4%
12:00 10° 1mm 25 — 97.4%
13:00 10° 0.6mm 27 — 95.6%
14:00 10° 0.8mm 25 — 96.3%
15:00 10° 0.3mm 28 — 94.6%
16:00 10° 0.8mm 26 — 96%
17:00 9° 0.2mm 29 — 96.2%
18:00 9° 0.1mm 27 — 94%
19:00 9° dry 26 — 94.5%
20:00 9° dry 26 — 93.4%
21:00 9° dry 25 — 92%
Fri Friday 18 September
Poor
Temp11°C
Rain10mm
Wind20 km/h
Gusts—
Humidity97%
10.4mm rain forecastHumidity 97% — likely fog/cloud
  • Wet schist is slippery and slow to dry
  • Damp air — slopers and friction edges may feel greasy
Time °C Rain Wind (km/h) Gust Hum
06:00 10° 0.2mm 18 — 96.3%
07:00 10° 0.2mm 20 — 96.7%
08:00 10° 0.2mm 20 — 95.3%
09:00 10° 0.3mm 21 — 94.3%
10:00 11° 0.9mm 19 — 91.6%
11:00 10° 0.6mm 21 — 95.8%
12:00 11° 0.7mm 18 — 96.3%
13:00 10° 1mm 19 — 98.1%
14:00 11° 2mm 23 — 98.2%
15:00 11° 1mm 21 — 98.9%
16:00 12° 0.5mm 21 — 99.1%
17:00 13° 0.5mm 24 — 98.4%
18:00 13° 0.4mm 26 — 98.6%
19:00 12° 0.3mm 25 — 98.6%
20:00 12° 0.2mm 24 — 98.1%
21:00 12° 0.2mm 26 — 98.3%
Sat Saturday 19 September
Poor
Temp11°C
Rain2mm
Wind20 km/h
Gusts—
Humidity91%
2.4mm rain forecastHumidity 91% — potential fog
  • Wet schist is slippery and slow to dry
  • Damp air — slopers and friction edges may feel greasy
Time °C Rain Wind (km/h) Gust Hum
06:00 10° 0.5mm 23 — 98.4%
12:00 11° 0.8mm 20 — 91%
18:00 8° 0.2mm 22 — 95.2%
Sun Sunday 20 September
Poor
Temp12°C
Rain0.6mm
Wind30 km/h
Gusts—
Humidity69%
0.6mm rain forecast
  • Wet schist is slippery and slow to dry
  • Breezy — helps drying
Time °C Rain Wind (km/h) Gust Hum
06:00 8° dry 24 — 97.1%
12:00 12° dry 30 — 69%
18:00 10° dry 20 — 81.8%
Mon Monday 21 September
Good
Temp12°C
Rain0.1mm
Wind10 km/h
Gusts—
Humidity80%
Should be dry
  • Schist climbs well when dry; lichen may slow drying in shade
Time °C Rain Wind (km/h) Gust Hum
06:00 9° dry 4 — 82.3%
12:00 12° dry 10 — 80.1%
18:00 13° dry 6 — 92.5%
Tue Tuesday 22 September
Poor
Temp15°C
Rain0.9mm
Wind12 km/h
Gusts—
Humidity97%
0.9mm rain forecastHumidity 97% — likely fog/cloud
  • Wet schist is slippery and slow to dry
  • Damp air — slopers and friction edges may feel greasy
Time °C Rain Wind (km/h) Gust Hum
06:00 13° 0.4mm 3 — 99.8%
12:00 15° 0.3mm 12 — 96.5%
18:00 14° dry 6 — 97.2%
Wed Wednesday 23 September
Poor
Temp13°C
Rain0.6mm
Wind12 km/h
Gusts—
Humidity99%
0.6mm rain forecastHumidity 99% — likely fog/cloud
  • Wet schist is slippery and slow to dry
  • Damp air — slopers and friction edges may feel greasy
Time °C Rain Wind (km/h) Gust Hum
06:00 13° 0.3mm 7 — 100%
12:00 13° dry 12 — 99.1%
18:00 13° dry 9 — 94%

About Inversnaid (Crystal Crag)

Crystal Crag at Inversnaid sits high above the east shore of Loch Lomond, distinguished by the striking white quartz patina coating the mica-schist face. The rock offers a rare combination of thin, positive edges and small pockets across a slightly bulging vertical wall, giving intense technical face climbing on unusual holds. Facing south and set back into a sheltered gully, the crag is a genuine sun trap and reportedly suffers little from midges despite its Loch Lomond setting — an important detail on a coast known for them. Grades sit firmly in the sport-climbing sweet spot from Fr6c through Fr7c, with Age of Aquarius and Fear and Loathing widely rated as some of Scotland's finest routes at their grade. Approach is via the West Highland Way from the Inversnaid Hotel car park, roughly thirty minutes along the loch shore then a steep fifteen-minute uphill push. The crag stays dry after most rain thanks to the overhang above.

Region
Scotland - Central & Southern — Loch Lomond
Rock type
Schist
Aspect
south-facing
Altitude
240m
Exposure
medium
Seepage
low

Other crags in this region

Ardvorlich (Loch Lomond)