Muggy weather will envelop the islands today as the remnants of Hurricane Celia pass north of the state, bringing in moisture and cutting off tradewinds.

“It’s already feeling muggy, and it’s just going to get worse as the winds die down Monday and Tuesday,” said Maureen Ballard, meteorologist with the National Weather Service in Honolulu. “In addition, the moisture that’s going to come in is also helping to fuel some showers.”

She said to expect showers in the afternoon.

The dew point, a measure of atmospheric moisture, could reach the mid-70s as tradewinds drop off Monday and Tuesday. A dew point of 70 degrees is the point where people start to feel uncomfortable.

“We are already into the low 70s,” Ballard said Sunday evening. “If the tradewinds are blowing, it’s not as noticeable. But as they climb up into the mid-70s … with no wind, it really just feels really bad.”

“Turn the fans on,” she said.

Celia will continue moving west and will be far enough Wednesday to allow tradewinds to return Wednesday and Thursday.

But then the effects of Hurricane Darby will begin arriving, Ballard said. Hurricane Darby was about 1,800 miles east of Hawaii island on Sunday.

Darby continued to maintain its strength Sunday but was expected to weaken to a tropical storm today, the National Hurricane Center said. The Category 1 hurricane was moving west at about 9 mph with 90 mph maximum sustained winds and hurricane-force winds extending up to 30 miles from the center.

Darby could bring long-period swells by Tuesday and moisture by the end of the week.

Ballard said models predict an increase in showers as early as Friday and for the weekend because of Darby, but there was still a high degree of uncertainty.

She said the conditions ahead of Darby are not conducive to the storm strengthening, and it was expected to cross into the Central Pacific as a tropical storm Wednesday. By Friday it will be about 300 miles east of the Big Island.

Behind Darby is Tropical Storm Estelle, which was about 2,700 miles east of the Big Island. Estelle was forecast to become a hurricane today. It was still too far to determine what impact it could have on the islands.

Besides the muggy, wet weather, Celia was also bringing strong wind and surf.

A gale warning was in effect for offshore waters, which extend outside 40 nautical miles from shore, and mariners were being warned of 5- to 14-foot seas today.

A high-surf advisory was also in effect until 6 p.m. today for 6- to 10-foot surf along the east shores of Kauai, Oahu, Molokai, Maui and Hawaii island.

Ballard warned that while the Central Pacific hasn’t had any hurricanes yet, it’s still early in the season, which started in June.

Forecasters predicted an average to above-average hurricane season this year, with four to seven tropical cyclones. The season runs through November.

“It’s better to prepare now,” she said. “Make sure you’ve got your supplies.”