| Document and Entity Information | Dec. 08, 2021 |
| Entity Listings [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 8, 2021 |
| Entity Registrant Name | Climate Real Impact Solutions II Acquisition Corp |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-39944 |
| Entity Tax Identification Number | 85-4141622 |
| Entity Address, Address Line One | 300 Carnegie Center |
| Entity Address, Address Line Two | Suite 150 |
| Entity Address, City or Town | Princeton |
| Entity Address, State or Province | NJ |
| Entity Address, Postal Zip Code | 08540 |
| City Area Code | 212 |
| Local Phone Number | 847-0360 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Entity Central Index Key | 0001835713 |
| Units, each consisting of one share of Class A common stock, $0.0001 par value, and one-fifth of one redeemable warrant [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one share of Class A common stock, $0.0001 par value, and one-fifth of one redeemable warrant |
| Trading Symbol | CLIM.U |
| Security Exchange Name | NYSE |
| Common Class A [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Shares of Class A common stock included as part of the units |
| Trading Symbol | CLIM |
| Security Exchange Name | NYSE |
| Redeemable warrants included as part of the units, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50 [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Redeemable warrants included as part of the units, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50 |
| Trading Symbol | CLIM WS |
| Security Exchange Name | NYSE |
