Is it worth the trip?
86Good out of 100 for your dates
Best on Mon 9: Rock dry, Rock about 13 °C
Tue 3 · 81 out of 100
- Rock
- Dry
- Rock temp
- 12°C
- Air
- 11°C
- Rain
- 0 mm
Wed 4 · 88 out of 100
- Rock
- Dry
- Rock temp
- 10°C
- Air
- 10°C
- Rain
- 0 mm
Thu 5 · 92 out of 100
- Rock
- Dry
- Rock temp
- 15°C
- Air
- 10°C
- Rain
- 0 mm
Fri 6 · 61 out of 100
- Rock
- Wet
- Rock temp
- 10°C
- Air
- 10°C
- Rain
- 0.3 mm
Sat 7 · 84 out of 100
- Rock
- Wetdry in 3 h
- Rock temp
- 11°C
- Air
- 11°C
- Rain
- 0 mm
Sun 8 · 81 out of 100
- Rock
- Dry
- Rock temp
- 10°C
- Air
- 9°C
- Rain
- 0 mm
Mon 9 · 95 out of 100
- Rock
- Dry
- Rock temp
- 13°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 254, fair
- Tue 381, good
- Wed 488, good
- Thu 592, good
- Fri 661, good
- Sat 784, good
- Sun 881, good
- Mon 995, good
- Tue 1085, good
- Wed 1187, good
The spot in three facts
- 7 cragsmapped within 5 km
- Boulderingstyles
- Best in Apr5 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* | 54, fair | Dry? | 11°C | 11°C | 0 mm |
| Tue 3Nov | 81, good | Dry | 12°C | 11°C | 0 mm |
| Wed 4Nov | 88, good | Dry | 10°C | 10°C | 0 mm |
| Thu 5Nov | 92, good | Dry | 15°C | 10°C | 0 mm |
| Fri 6Nov | 61, good | Wet | 10°C | 10°C | 0.3 mm |
| Sat 7Nov | 84, good | Wetdry in 3 h | 11°C | 11°C | 0 mm |
| Sun 8Nov | 81, good | Dry | 10°C | 9°C | 0 mm |
| Mon 9Nov | 95, good | Dry | 13°C | 9°C | 0 mm |
| Tue 10Nov | 85, good | Wetdry in 6 h | 11°C | 10°C | 0 mm |
| Wed 11Nov | 87, good | Wetdry in 3 h | 13°C | 13°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 in Apr
Good climbing days in a typical week, each month, from 2016 on (ERA5 history scored the same way).
- Jan3of 7: a trip from Sat 2 Jan
- Feb4of 7: a trip from Sat 6 Feb
- Mar4of 7: a trip from Sat 6 Mar
- Apr5of 7: a trip from Sat 3 Apr
- May4of 7: a trip from Sat 1 May
- Jun4of 7: a trip from Sat 5 Jun
- Jul4of 7: a trip from Sat 3 Jul
- Aug4of 7: a trip from Sat 7 Aug
- Sep4of 7: a trip from Sat 4 Sept
- Oct4of 7: a trip from Sat 2 Oct
- Nov4of 7: a trip from Tue 3 Nov
- Dec3of 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
Rocher de Châtillon 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, terrain © Mapterhorn.
More climbing near here
1 place
- Valpuiseaux 7.8 km away
About
the place in full, sources, credits
About Rocher de Châtillon
7 crags mapped. Bouldering. Best from Feb to Nov. The nearest town to stay in is Courdimanche-sur-Essonne.
- Crags 7 crags mapped.
- Styles Bouldering.
- 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$1,360–US$2,530 each
about US$1,360–US$2,530 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 2 November 2026.
How we worked it out
| What | How we worked it out | Each |
|---|---|---|
| Flights | return ORD to CDG, estimated from distance and season, 3 airlines on the route, with a hold bag | about US$463–US$966 |
| Hire car | 6 days, shared | about US$141–US$235 |
| Stay | 6 nights, a mid-range double, shared | about US$329–US$543 |
| Food | 7 days eating out | about US$315–US$584 |
| Climbing instructor | 1 day with an instructor, shared; leave it out if you climb on your own | about US$107–US$201 |
| Total | about US$1,360–US$2,530 |
Climbers bring their own kit: it is not in the cost. Prices from public sources, checked in 2026.
Where to stay: Courdimanche-sur-Essonne
Ad Links marked Ad may pay us if you book. You pay the same, and they never change a score. How we earn
about 5 min by car · 3 places to stay
about US$121/nightcountry average
About Courdimanche-sur-Essonne 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 2 November 2026.
Getting there: about 14h 15m
About 14h 15m door to door from Chicago
Fly ORD → CDG, direct, then 1h 30m by road
Flights ORD → CDG on your dates · AviasalesAdeSIM for your phone · Search on AiraloAd
An estimate, one way; the journey never changes the score.