Two-term incumbent Andrew Cuomo continues to hold a giant lead over rival Cynthia Nixon as the Democratic primary for governor heads into the summer months, according to a poll released Wednesday.

Cuomo is demolishing the “Sex and the City” actress 61 to 26 percent in the Sept. 13 race, the Siena College survey found.

The figures show Nixon — who launched her campaign in March — hasn’t gained any ground in the last two months.

In fact,she lost a few steps.

In April, the same poll put Cuomo’s lead at 58 to 27 percent.

The general election is shaping up to be more competitive, according to the pollsters.

Cuomo was still comfortably ahead of GOP rival Marc Molinaro, but by 19 points — 56 to 37 percent.

Among Democrats, Cuomo led in every category and by a wider margin among women than men.

Women supported the governor 63 to 27 percent, while the split among men was 58 to 27 percent.

Cuomo led 63 to 23 percent in New York City and was whipping Nixon in the suburbs, 76 to 13 percent. She fared best upstate, where she trailed the incumbent 39 to 47 percent.

“Nixon has a lot of catching up to do to make this race competitive. Cuomo is well known and well liked by New York Democrats,” said pollster Steven Greenberg.

Things could get tighter in November.

Cuomo defeated Republican Rob Astorino 54 to 40 percent in 2014, a 14-point spread. A Siena poll in June of that year had Cuomo up by 26 points.

Siena surveyed 745 likely voters from June 4-7. The poll has a 3.6 percentage point margin of error.

Nixon’s campaign responded by citing numbers in the poll they said showed she could win.

“The Governor’s team pulled out every trick in the book to try to improve his numbers,” said campaign spokeswoman Lauren Hitt. “But, despite their efforts, the Governor’s unfavorability remains the highest it’s ever been, and Cynthia’s favorability dramatically increased among Democrats, liberals and young voters. That favorability will only continue to grow as the campaign tells voters more about Cynthia and her plan to create a New York that works for everyone.”