Boiler Slab
Climbing area · UK
Is it worth the trip?
84Good out of 100 for your dates
Best on Tue 3: Rock dry, Rock about 15 °C
Mon 2 · 90 out of 100
- Rock
- Dry
- Rock temp
- 15°C
- Air
- 11°C
- Rain
- 0 mm
Tue 3 · 95 out of 100
- Rock
- Dry
- Rock temp
- 15°C
- Air
- 12°C
- Rain
- 0 mm
Wed 4 · 81 out of 100
- Rock
- Dry
- Rock temp
- 13°C
- Air
- 10°C
- Rain
- 0 mm
Thu 5 · 77 out of 100
- Rock
- Dry
- Rock temp
- 10°C
- Air
- 10°C
- Rain
- 0 mm
Fri 6 · 78 out of 100
- Rock
- Dry
- Rock temp
- 10°C
- Air
- 10°C
- Rain
- 0 mm
Sat 7 · 45 out of 100
- Rock
- Wet
- Rock temp
- 9°C
- Air
- 9°C
- Rain
- 0.6 mm
Sun 8 · 87 out of 100
- Rock
- Wetdry in 3 h
- Rock temp
- 11°C
- Air
- 10°C
- Rain
- 0 mm
Tap a day for rock, its warmth, the air and rain. Full forecast
Forecast: next 10 days
Full forecast- Sun 159, fair
- Mon 290, good
- Tue 395, good
- Wed 481, good
- Thu 577, good
- Fri 678, good
- Sat 745, fair
- Sun 887, good
- Mon 976, good
- Tue 1091, good
The spot in three facts
- 31 cragsmapped within 5 km
- Sport and tradstyles
- Best Apr–May4 good days in 7
Full forecast
every day, every number
The score doesn't know loose rock, seepage, access bans or your skill.
| Day | Score | Rock | Rock temp | Air | Rain |
|---|---|---|---|---|---|
| Sun 1Nov* | 59, fair | Dry? | 16°C | 14°C | 0 mm |
| Mon 2Nov | 90, good | Dry | 15°C | 11°C | 0 mm |
| Tue 3Nov | 95, good | Dry | 15°C | 12°C | 0 mm |
| Wed 4Nov | 81, good | Dry | 13°C | 10°C | 0 mm |
| Thu 5Nov | 77, good | Dry | 10°C | 10°C | 0 mm |
| Fri 6Nov | 78, good | Dry | 10°C | 10°C | 0 mm |
| Sat 7Nov | 45, fair | Wet | 9°C | 9°C | 0.6 mm |
| Sun 8Nov | 87, good | Wetdry in 3 h | 11°C | 10°C | 0 mm |
| Mon 9Nov | 76, good | Wet | 9°C | 9°C | 0.3 mm |
| Tue 10Nov | 91, good | Wetdry in 3 h | 11°C | 11°C | 0 mm |
* Rain before today is not known: the forecast starts today, so these days are scored from a dry start and a wet one.
Rock and air are in °C, the rock's with the sun on it; rain in mm. More
Forecast updated . It refreshes every three hours. Forecast data: ECMWF, DWD, Météo-France and NOAA, served by Open-Meteo.com (CC BY 4.0). Changed by us. Generated using E.U. Copernicus Marine Service Information.
Best time to go
best Apr–May
Good climbing days in a typical week, each month, from 2016 on (ERA5 history scored the same way).
- Jan2of 7: a trip from Sat 2 Jan
- Feb2of 7: a trip from Sat 6 Feb
- Mar3of 7: a trip from Sat 6 Mar
- Apr4of 7: a trip from Sat 3 Apr
- May4of 7: a trip from Sat 1 May
- Jun3of 7: a trip from Sat 5 Jun
- Jul3of 7: a trip from Sat 3 Jul
- Aug2of 7: a trip from Sat 7 Aug
- Sep2of 7: a trip from Sat 4 Sept
- Oct2of 7: a trip from Sat 2 Oct
- Nov1of 7: a trip from Mon 2 Nov
- Dec2of 7: a trip from Sat 5 Dec
Tap a month to see this spot for a trip then.
Typical weather, not a forecast.
Map
the area and its town
Boiler Slab on Google Maps · Directions
Each place wears its best day on these dates: green good, amber fair, pale red poor, as the key says.
The map needs JavaScript. Every place on it is listed on this page, and each place's page links to Google Maps.
One finger scrolls the page; two fingers move the map. Pins are our own positions. Map OpenFreeMap, © OpenMapTiles, data © OpenStreetMap contributors.
Photos of Boiler Slab
More climbing near here
2 places
- Little Star Wall 8.1 km away
- Rams Tor 16.9 km away
About
the place in full, sources, credits
About Boiler Slab
31 crags mapped. Sport and trad. Best from Apr to May. The nearest town to stay in is Swansea.
- Crags 31 crags mapped.
- Styles Sport and trad.
- Rock No source states the rock.
From OpenStreetMap: the crags mapped within 5 km. Check access and bans locally.
Crags: © OpenStreetMap contributors (ODbL).
The score is the conditions only: the journey, the price and the partners never change it (how we score, how we earn).
Rough cost (estimate): about US$1,350–US$2,510 each
about US$1,350–US$2,510 each · 6 nights, 2 sharing: flights, hire car, stay, food, climbing instructor.
Our estimate from typical public prices, not a quote: check the real prices before you book (where they come from). Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.
How we worked it out
| What | How we worked it out | Each |
|---|---|---|
| Flights | return ORD to CWL, estimated from distance and season, changing at DUB, full-service airlines, with a hold bag | about US$435–US$904 |
| Hire car | 6 days, shared | about US$141–US$234 |
| Stay | 6 nights, a mid-range double, shared | about US$322–US$543 |
| Food | 7 days eating out | about US$315–US$583 |
| Climbing instructor | 1 day with an instructor, shared; leave it out if you climb on your own | about US$134–US$241 |
| Total | about US$1,350–US$2,510 |
Climbers bring their own kit: it is not in the cost. Prices from public sources, checked in 2026.
Where to stay: Swansea
38 min by car · 72 places to stay
about US$121/nightcountry average
About Swansea its beds, food and every spot near it
About US$121 a night is our estimate of the country's average 2-star double room that month: not each town's price, and not a quote. Drives are estimates. Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.
Getting there: about 16h 40m
About 16h 40m door to door from Chicago
Fly ORD → CWL, changing at Dublin Airport (DUB), then 1h 10m by road
Flights ORD → CWL on your dates · Skyscanner
An estimate, one way; the journey never changes the score.