There is a Portuguese Mass at the St. Martin church in Baar at 9.15 every sunday. I just looked at their website and I see no creche for kids though.
http://www.pfarrei-baar.ch/gottesdienst.htm
We have a spanish speaking lady at my son's spielgruppe in Zug and now they do Spanish classes. My son is 4 and he understands Portuguese but is scared to speak. I would love to find him somewhere nearby.
Searching for "portugiesische spielgruppe site:.ch" in google I see these ones:
There is one in Winterthur:
http://www.spielgruppenwinti.ch/spie...toess_2010.pdf
One in Zurich:
http://www.unterstrass.ch/pdf/Blickpunkt05.pdf
Deutsch, Italienisch, Englisch und Portugiesisch:
Spielgruppen Röslichnopf
Quartierhaus Kreis 6 , Langmauerstr. 7
044 360 20 00 (Ursula Guggisberg)