Cover	Nov. 26, 2024
Document Information [Line Items]
Document Type	N-2/A
Document Registration Statement	true
Pre-Effective Amendment	true
Pre-Effective Amendment Number	2
Investment Company Act Registration	true
Investment Company Registration Amendment	true
Investment Company Registration Amendment Number	2
Dividend or Interest Reinvestment Plan Only	false
Delayed or Continuous Offering	true
Effective Upon Filing, 462(e)	false
Additional Securities Effective, 413(b)	false
Effective when Declared, Section 8(c)	true
New Effective Date for Previous Filing	false
Additional Securities. 462(b)	false
No Substantive Changes, 462(c)	false
Exhibits Only, 462(d)	false
Approximate Date of Commencement of Proposed Sale to Public	As soon as practicable after the effective date of this Registration Statement.
Amendment Flag	false
Entity Information [Line Items]
Entity Registrant Name	Rockefeller Municipal Opportunities Fund
Entity Central Index Key	0002033164
Securities Act File Number	333-281369
Investment Company Act File Number	811-23993
Entity Well-known Seasoned Issuer	No
Entity Emerging Growth Company	false
Entity Inv Company Type	N-2
Entity Contact Personnel [Line Items]
Entity Address, Address Line One	615 East Michigan Street
Entity Address, City or Town	Milwaukee
Entity Address, State or Province	WI
Entity Address, Postal Zip Code	53202
Entity Phone Fax Numbers [Line Items]
City Area Code	626
Local Phone Number	914-7385
Business Contact [Member]
Entity Contact Personnel [Line Items]
Contact Personnel Name	Rachel A. Spearo, Secretary
Entity Address, Address Line One	615 East Michigan Street
Entity Address, City or Town	Milwaukee
Entity Address, State or Province	WI
Entity Address, Postal Zip Code	53202