SAN FRANCISCO — The Mets are enjoying quite a reversal of fortune in San Francisco this weekend. After a week of offensive performances that were as cold as the weather, the bats got hot, helping lead the Mets to two wins in San Francisco as the California weather turned pleasantly warm.

Saturday night at Oracle Park, the Mets could do no wrong while the San Francisco Giants did just about everything wrong. Even without star slugger Juan Soto, the Mets managed nine runs in a 9-0 game, scoring 19 over the last two nights.

These are the Mets everyone expected.

“We lost a couple there in St Louis, they were really close games. Then we come out here and make us travel, and lose the first one,” said right-hander Clay Holmes. “It’s great just to see us respond like we have, but really just everybody stepping up. The pitching has been great, the defense has been incredible, and the lineup is just showing what we can do.”

Holmes shut the Giants out over seven innings, allowing only three hits and two walks, and striking out four in the win (2-0). The offense capitalized on the mistakes by a sloppy San Francisco defense.

Soto was forced to sit with a mild calf strain in the third game of a three-game set and missed nearly the entire game one night prior. Yet they’ve scored 17 runs in 17 innings without him.

A long lineup logged 12 hits against four Giants pitchers and one position player who took the mound.

“We’re playing complete games,” said manager Carlos Mendoza. “It starts on the mound, setting the tone, getting the offense back in the dugout and having shutdown innings after we score. The pitching staff attacking, and then offensively grinding at bats.”

The Mets scored three times in the second inning, with right-hander Landon Roupp’s defense doing him few favors. They scored five runs in the fifth to go up 8-0, batting around and further fatiguing the Giants. They capped the scoring in the seventh. There was a double, a single, an error, a wild pitch and a walk.

It made for long innings for the opposing pitchers, but for Holmes, it afforded him some nice downtime in the dugout.

“I feel like I got better as the game went on because I was getting rest in between innings,” Holmes said. “They’re putting up good at-bats, making the pitchers throw. Our pitchers are getting to rest, making other pitchers, you know, work. And so it really impacts just the whole game.

Bo Bichette and Marcus Semien had multi-hit games for the second night in a row, Brett Baty went 2-for-5 with a double, and Tyrone Taylor drove in four runs, going 2-for 3 with a pinch-hit, three-run homer right after the Giants replaced Roupp (1-1) with left-hander Ryan Borucki in the fifth inning.

It was his first home run of the season and his first hit.

“For it to be a homer and to contribute like that for the guys, it’s very gratifying. I’m thankful,” Taylor said. “And it made me happy.”

No hitter on the Mets is as hot as Mark Vientos right now. The first baseman/DH has hit safely in four straight games, with a home run, three doubles, three RBI, four runs scored and two walks. Vientos had a double, a single and an RBI single in his first three at-bats Saturday, going 3-for-5 on the night.

“I feel like myself,” Vientos said. “I feel really good.

And to think, he only had two hits throughout all of spring training.

“We kept telling him in spring training, ‘Keep hitting the ball hard, keep controlling the strike zone,’” Mendoza said. “As a human, as a competitor, they want to see results.”

“Swaggy V” has never been one to lack confidence, even when the results weren’t there. Now, he’s clearly seeing the ball well. Not only is it evident in the walks and in the way he’s hitting — using all fields and making hard contact — but in the two challenges he’s won over the last two nights.

“When you see him challenging pitches like that from the doughnut, they look pretty close. And then you look up on the board like, ‘Wow, Mark is seeing the ball really well out of the hand,’” Mendoza said. “And then what he follows is, he’s not missing pitches.”

Soto is confident he won’t need to miss significant time by going on the injured list. The strain is minor, and he was already feeling better by Saturday morning. Still, if this is how the Mets are playing without him, they’ll be just fine if they do lose him next week.

The series with the Giants (3-5) concludes Sunday afternoon. The Mets (5-4) are ahead 2-1 with a chance to win their second series of the season, and one against a key NL opponent.