A high surf advisory is in effect for south facing shores of the Hawaiian islands until 6 a.m. Sunday. South shores, which are getting a swell generated from a storm near New Zealand, are expecting 6- to 9-foot surf.

Forecasters say beachgoers can expect strong, breaking waves and shore break, and strong currents which could make swimming difficult and dangerous.

Marie’s remnants and what’s left of former Hurricane Lowell have moved north and east of Hawaii. Marie’s winds dropped below tropical storm strength overnight as it moved into cooler water.

The tradewinds, which would normally provide some cooling relief from the August humidity, are being partially blocked by the remnants of the two storms, so the weather will feel muggier than usual.

“We’re not going to have as much trades,” said National Weather Service meteorologist Chris Jacobson. The light tradewinds will allow cloulds to build up over leeward and mauka slopes in the afternoon that may bring afternoon showers.

There will likely also be a few windward and mauka showers in the morning, Jacobson said.

The forecast for Honolulu and south shores of Oahu calls for a 40 percent chance of rain Friday and Friday night with highs between 85 and 90 degrees and 10 mph winds.

The possibility of afternoon showers remains in the forecast through Labor Day.

The tradewinds could return Tuesday or Wednesday.