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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 moFO+KD0s23FpZxrZRN7AQ==

<SEC-DOCUMENT>0001198272-04-000020.txt : 20040603
<SEC-HEADER>0001198272-04-000020.hdr.sgml : 20040603
<ACCEPTANCE-DATETIME>20040603155800
ACCESSION NUMBER:		0001198272-04-000020
CONFORMED SUBMISSION TYPE:	5
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20040430
FILED AS OF DATE:		20040603

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PUTNAM MUNICIPAL OPPORTUNITIES TRUST
		CENTRAL INDEX KEY:			0000900422
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				043187549
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1031

	BUSINESS ADDRESS:	
		STREET 1:		ONE POST OFFICE SQUARE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02109
		BUSINESS PHONE:		6172921000

	MAIL ADDRESS:	
		STREET 1:		ONE POST OFFICE SQUARE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02109

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			THORNDIKE W NICHOLAS
		CENTRAL INDEX KEY:			0001008348

	FILING VALUES:
		FORM TYPE:		5
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-07626
		FILM NUMBER:		04847318

	BUSINESS ADDRESS:	
		STREET 1:		15 WELLMAN AVENUE
		CITY:			NORTH CHLMSFORD
		STATE:			MA
		ZIP:			01863
		BUSINESS PHONE:		9782516000

	MAIL ADDRESS:	
		STREET 1:		C/O THE PROVIDENCE JOURNAL CO
		STREET 2:		75 FOUNTAIN STREET
		CITY:			PROVIDENCE
		STATE:			RI
		ZIP:			02902
</SEC-HEADER>
<DOCUMENT>
<TYPE>5
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>5</documentType>

    <periodOfReport>2004-04-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <form3HoldingsReported>0</form3HoldingsReported>

    <form4TransactionsReported>0</form4TransactionsReported>

    <issuer>
        <issuerCik>0000900422</issuerCik>
        <issuerName>PUTNAM MUNICIPAL OPPORTUNITIES TRUST</issuerName>
        <issuerTradingSymbol>pmo</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001008348</rptOwnerCik>
            <rptOwnerName>THORNDIKE W NICHOLAS</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE PROVIDENCE JOURNAL CO</rptOwnerStreet1>
            <rptOwnerStreet2>75 FOUNTAIN STREET</rptOwnerStreet2>
            <rptOwnerCity>PROVIDENCE</rptOwnerCity>
            <rptOwnerState>RI</rptOwnerState>
            <rptOwnerZipCode>02902</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Closed-End Fund</value>
            </securityTitle>
            <transactionDate>
                <value>2004-04-30</value>
                <footnoteId id="F1"/>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>15.929</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>13.44</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>208.684</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Dividends reinvested for fiscal year ending 4/30/04</footnote>
        <footnote id="F2">Price as of 4/30/04</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>W. Nicholas Thorndike</signatureName>
        <signatureDate>2004-06-03</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>3
<FILENAME>thorndikeconfirm.txt
<DESCRIPTION>CONFIRMING STATEMENT
<TEXT>
Confirming Statement

I, as Reporting Person of Putnam Investment Management, LLC and/or
Putnam, LLC, the Issuer's Investment Adviser and Indirect Parent
Holding Company, respectively, hereby authorize and designate each and
every Managing Director, Senior Vice President and Vice President in
the Putnam Investments Legal and Compliance Department to file SEC
Exchange Act Forms 3, 4 or 5 on my behalf until further notice in
electronic format pursuant to Rule 101(b)(4) of Regulation S-T.

- ---------------------------

/s/  W. Nicholas Thorndike



</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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