Now’s the time to get that hand-held fan.

Intense humidity will make the next couple of days in New York feel even hotter than the soaring number on the thermometer — turning the city into a swampy hellscape.

There’ll be highs in the 90s on Monday and Tuesday but it’ll actually feel like a muggy 100 degrees or more, warned Accuweather meteorologist Dan Pydynowski.

“On a sunny, hot and humid day, it feels hotter because you’re not getting that sweat evaporating,” Pydynowski explained.

Though it’s uncomfortable, sweating is the main way our body cools off, acting “just like when swimming” — but when there’s too much humidity in the air, that process doesn’t work as well, Pydynowski said.

“Your body is not able to cool itself as readily as on a dry day,” he said. “Sweat struggles to evaporate because there’s already a lot of moisture in the air. It makes it more uncomfortable.”

Showers and thunderstorms are expected Wednesday, but it’ll still be warm and humid.

The New York City Emergency Management Department has issued a heat advisory for 10 a.m. Sunday through 8 p.m. Monday.