The two-time Olympic medallist teamed up with Grace Reid to take silver in the mixed 3m synchronised, pipped narrowly to top spot by eventual winners Francois Imbeau-Dulac and Jennifer Abel of Canada.
The British pair, who won gold in the event at the London leg last year, were a model of consistency tied for top spot before their rivals - roared on by a passionate home crowd - edged ahead in the second round.
Earlier, Daley produced a magnificent inward three-and-a-half somersaults jump to take the lead in the individual 10 platform, before a mistimed third jump meant he finished in fifth position. His teenage compatriot Noah Williams took top spot.
"I am coming back from a bit of an injury and I only got back to training last week, so I am glad that I was able to compete here in the first place," Daley said to Fina.org.
"I know that the only competition that matters is this one summer in Tokyo and you just have to do it on that day, something that I learned the hard way a couple of times."
As expected, Canada were the dominant force in home water, winning six out of the 10 gold medals available, while Russia won three.
Olympic bronze medallist Abel won three of her nation's titles on the night, including the individual 3m springboard, the synchro 3m springboard alongside Melissa Citrini-Beaulieu, and the mixed synchro 3m springboard with Imbeau-Dulac.
I am so happy to have been able to perform like this, I really don’t think I could have done any better. I am even happier to have won three gold medals at home, in front of my family, and really show them what I am capable of doing,” Abel told FINA.org
Elsewhere, Rio 2016 gold medallist Jack Laugher claimed silver in the solo 3m springboard, before partnering Dan Goodfellow to another second-place finish in the synchro 3m springboard.
The Diving World Series continues with the second leg in Kazan, Russia, March 20-22.