Here is the listing of jazz, blues and music festivals Worldwide for August 2009 (source:JazzNews) :
Complete listing
by state, town, festival
USA August 2009
AL, Mobile Gulf Coast Ethnic & Heritage Jazz Festival
CA, Concord JVC Jazz Festival - Concord tba August 2009
CA, Costa Mesa Orange County Classic Jazz Festival tba August 2009
CA, Eureka Blues By The Bay tba August 2009
CA, Idyllwild Jazz in the Pines tba August 2009
CA, Irvine West Coast Jazz Party & Brunch Cruise tba August 2009
CA, Long Beach Long Beach Jazz Festival tba August 2009
CA, Los Angeles JVC Jazz Festival - Los Angeles tba August 2009
CA, Mammoth Lakes Mammoth Festival of Beers & Bluesapalooza tba August 2009
CA, Ontario Inland Empire Jazz Festival tba August 2009
CA, Petaluma Blues & Jazz on the Plazz tba August 2009
CA, Petaluma Petaluma Wine, Jazz & Blues Festival tba August 2009
CA, San Jose Comcast San Jose Jazz Festival tba August 2009
CA, Wrightwood Inland Empire Jazz Festival tba August 2009
CA, Wrightwood Inland Empire Jazz Festival tba August 2009
CO, Breckenridge Genuine Jazz in Breckenridge tba August 2009
CO, Telluride Telluride Jazz Celebration tba August 2009
CO, Trinidad Trinidaddio Blues Fest tba August 2009
CO, Westcliffe Jazz in the Sangres tba August 2009
CT, Litchfield Litchfield Jazz Festival tba August 2009
DE, Wilmington Riverfront Blues Festival tba August 2009
IA, Cedar Rapids Bluesmore Festival tba August 2009
IA, LeMars International Country & Blues Festival tba August 2009
ID, Sandpoint Festival at Sandpoint tba August 2009
ID, Yellow Pine Yellow Pine Hamonica Festival tba August 2009
IL, Chicago Chicago Jazz Festival tba August 2009
IL, Chicago JazzFest Heritage Music Weekend tba August 2009
IL, East Peoria Luther Allison Memorial Blues Fest tba August 2009
IL, Oak Brook The North American Festival of Wales tba August 2009
IL, South Elgin The World of Faeries Festival tba August 2009
IL, Sparta Sparta Blues Festival tba August 2009
IN, Elkhart Annual Island of Blues Festival tba August 2009
IN, Madison Madison RibberFest tba August 2009
LA, Lafayette Le Cajun Music Awards Festival tba August 2009
LA, New Orleans Cutting Edge Music Business Conference & Roots Music Gathering tba August 2009
LA, New Orleans Satchmo Club Strut tba August 2009
MA, Martha's Vineyard Vineyard Vibes Festival tba August 2009
MA, Westford Blues N Brews Festival tba August 2009
MD, Cockeysville Hot August Blues Festival tba August 2009
MI, Grand Rapids Cow Pie Blues Festival tba August 2009
MI, Grand Rapids The Cowpie Blues Festival tba August 2009
MI, Idlewild Idlewild Jazz Festival tba August 2009
MI, Lansing Lansing JazzFest tba August 2009
MI, Petoskey Celtic Festival tba August 2009
MN, Duluth Bayfront Blues Festival tba August 2009
MN, Winton Boundary Waters Blues Festival tba August 2009
MS, Clarksdale Sunflower River Blues & Gospel Festival tba August 2009
MT, Billings Magic City Blues Festival tba August 2009
ND, Fargo Fargo Blues Fest tba August 2009
NH, New Boston Barnful of Blues Festival tba August 2009
NH, Thornton The White Mountain Boogie N' Blues Festival tba August 2009
NH, Thornton White Mountain Boogie n Blues Fest tba August 2009
NV, Reno Reno-Tahoe Blues Fest tba August 2009
NY, Lewiston Historic Lewiston Jazz Festival tba August 2009
NY, Oyster Bay Long Island Jazz Festival tba August 2009
NY, Peekskill Peekskill Jazz & Blues Celebration tba August 2009
NY, Sackets Harbor