JENNIFER GUSTAVSON FILE PHOTO | Mattituck business owner Jim Ryan aboard the water taxi earlier this summer.

Peconic Bay Water Jitney officials announced this week that its passenger ferry service linking the North and South forks will run through September.

The 100-day temporary approval granted in June by the Suffolk County Legislature allows the water taxi to shuttle passengers between Greenport and Sag Harbor villages until Sept. 28.

But ferry officials said Wednesday they believe they might be able to extend ferry operations an additional few days, if the Legislature approves an amendment to the plan during its next general meeting Sept. 13.

Mattituck business owner Jim Ryan of Response Marine, who launched the ferry plan jointly with Hampton Jitney president Geoffrey Lynch, said he and Mr. Lynch have decided to extend service past Labor Day to find out if the 45-minute ride is popular during September festivals in both villages.

“We’re pleased to have the opportunity to have a better look at the look at the off-season,” Mr. Ryan said.

Mr. Ryan said he didn’t need additional approvals from Greenport or Sag Harbor to run the ferry until Sept. 28 because those municipalities already agreed to allow the pilot program to operate through October.

Although the ferry had low ridership when it first launched in June, Mr. Ryan said he believes the pilot program was a success. After this season wraps up, he said he will work with both communities to tweak any changes to the plan before reintroducing it to Greenport and Sag Harbor next year. Peconic Bay Water Jitney customers have also provided feedback by answering questionnaires while aboard the boat, he added.

“We’ll only move forward with the input and support of both villages,” Mr. Ryan said. “Otherwise we won’t do it.”

The September schedule runs Thursday through Monday with extra late-day trips on Fridays and Saturdays. There will be no ferry service on Tuesdays or Wednesdays.

jennifer@timesreview.com