Boston Mayor Martin J. Walsh and Boston Red Sox officials said the team will celebrate its World Series victory with a duck boat parade through the streets of Boston on Wednesday.
Walsh announced the parade schedule at City Hall on Monday.
“This is an all-time great team that we had,’’ Walsh said of the Red Sox and manager Alex Cora. “We are a city of champions, so let us celebrate like champions.”
Walsh said that because of contractual limitations involving the players, the city and the Red Sox had to hold the parade on Wednesday, which happens to be Halloween.
“It’s tough timing,’’ Walsh acknowledged to reporters. “Unfortunately, that’s just the way it falls.”
Boston Police Commissioner William Gross said fans are welcome to wear Halloween costumes to the parade, with one key exception. “No costumes with replica firearms.”
He also said, “If you are in costume, we ask you to act respectfully.’’
Gross also said drinking alcoholic beverages will not be allowed. “No public drinking,” he said. “Alcohol will not be tolerated.”
Walsh had tweeted about the parade minutes after the Red Sox clinched the championship over the Dodgers in Los Angeles on Sunday night. “Fire up the Duck Boats for the #WorldSeries Champions -- congratulations @RedSox, we can’t wait to welcome you home!” Walsh tweeted.
But the date and time of the parade were not revealed until Monday morning.
The parade will start at 11 a.m. on Lansdowne Street outside historic Fenway Park, and then turn right on Ipswich Street, left onto Boylston Street, left onto Tremont Street to Cambridge Street, then right on Staniford Street, where it will end.
City officials warned the public to be aware of road closures and parking restrictions. The city has posted a detailed map of the duck boat route, as well as other information about the parade, online at www.boston.gov/redsoxparade.
The weather is expected to cooperate. The National Weather Service is predicting a crisp fall day, breezy and sunny, with the temperature at about 50 when the parade begins and rising toward 60 in the afternoon.
Gross said at the City Hall news conference that once the parade is ended, his officers will shift their attention to making sure traditional trick-or-treating in Boston is safe. He also offered a costume suggestion.
“Dress up as the mayor,” Gross said to laughter. “Let’s have fun on Halloween night.”
Emily Sweeney can be reached at esweeney@globe.com. Follow her on Twitter @emilysweeney.