Martian Slab
Climbing area · United States
Is it worth the trip?
86Good out of 100 for your dates
Best on Thu 5: Rock wet: dry in about 6 h, Rock about 15 °C
Tue 3 · 90 out of 100
- Rock
- Dry
- Rock temp
- 10°C
- Air
- 10°C
- Rain
- 0 mm
Wed 4 · 92 out of 100
- Rock
- Dry
- Rock temp
- 11°C
- Air
- 11°C
- Rain
- 0 mm
Thu 5 · 96 out of 100
- Rock
- Wetdry in 6 h
- Rock temp
- 15°C
- Air
- 12°C
- Rain
- 0 mm
Fri 6 · 24 out of 100
- Rock
- Wet
- Rock temp
- 7°C
- Air
- 7°C
- Rain
- 2.7 mm
Sat 7 · 76 out of 100
- Rock
- Wetdry in 9 h
- Rock temp
- 5°C
- Air
- 6°C
- Rain
- 0 mm
Sun 8 · 84 out of 100
- Rock
- Dry
- Rock temp
- 8°C
- Air
- 7°C
- Rain
- 0 mm
Mon 9 · 91 out of 100
- Rock
- Dry
- Rock temp
- 9°C
- Air
- 9°C
- Rain
- 0 mm
Tap a day for rock, its warmth, the air and rain. Full forecast
Forecast: next 10 days
Full forecast- Mon 264, good
- Tue 390, good
- Wed 492, good
- Thu 596, good
- Fri 624, poor
- Sat 776, good
- Sun 884, good
- Mon 991, good
- Tue 1083, good
- Wed 1127, poor
The spot in two facts
- 1 cragmapped within 5 km
- Best Jun, Sep6 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 |
|---|---|---|---|---|---|
| Mon 2Nov* | 64, good | Icy | 8°C | 8°C | 0 mm |
| Tue 3Nov | 90, good | Dry | 10°C | 10°C | 0 mm |
| Wed 4Nov | 92, good | Dry | 11°C | 11°C | 0 mm |
| Thu 5Nov | 96, good | Wetdry in 6 h | 15°C | 12°C | 0 mm |
| Fri 6Nov | 24, poor | Wet | 7°C | 7°C | 2.7 mm |
| Sat 7Nov | 76, good | Wetdry in 9 h | 5°C | 6°C | 0 mm |
| Sun 8Nov | 84, good | Dry | 8°C | 7°C | 0 mm |
| Mon 9Nov | 91, good | Dry | 9°C | 9°C | 0 mm |
| Tue 10Nov | 83, good | Dry | 10°C | 9°C | 0 mm |
| Wed 11Nov | 27, poor | Wet | 9°C | 8°C | 2.4 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 Jun, Sep
Good climbing days in a typical week, each month, from 2016 on (ERA5 history scored the same way).
- Jan0of 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
- May5of 7: a trip from Sat 1 May
- Jun6of 7: a trip from Sat 5 Jun
- Jul5of 7: a trip from Sat 3 Jul
- Aug5of 7: a trip from Sat 7 Aug
- Sep6of 7: a trip from Sat 4 Sept
- Oct4of 7: a trip from Sat 2 Oct
- Nov2of 7: a trip from Tue 3 Nov
- Dec0of 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
Martian 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.
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One finger scrolls the page; two fingers move the map. Pins are our own positions. Map OpenFreeMap, © OpenMapTiles, data © OpenStreetMap contributors.
Photos of Martian Slab
About
the place in full, sources, credits
About Martian Slab
1 crag mapped. Best from Apr to Oct. The nearest town to stay in is Peshastin.
- Crags 1 crag mapped.
- 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$1,230–US$2,250 each
about US$1,230–US$2,250 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 MDW to SEA, estimated from distance and season, 1 airline on the route, with a hold bag | about US$248–US$516 |
| Hire car | 6 days, shared | about US$154–US$255 |
| Stay | 6 nights, a mid-range double, shared | about US$348–US$583 |
| Food | 7 days eating out | about US$342–US$636 |
| Climbing instructor | 1 day with an instructor, shared; leave it out if you climb on your own | about US$141–US$261 |
| Total | about US$1,230–US$2,250 |
Climbers bring their own kit: it is not in the cost. Prices from public sources, checked in 2026.
Where to stay: Peshastin
about 15 min by car · 3 places to stay
about US$134/nightcountry average
About Peshastin its beds, food and every spot near it
About US$134 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 8h 40m
About 8h 40m door to door from Chicago
Fly MDW → SEA, direct, then 2h 40m by road
Flights MDW → SEA on your dates · Skyscanner
An estimate, one way; the journey never changes the score.