Falls of more than 30mm have drenched the Sunshine Coast in the past 24 hours.

The weather bureau says the rain has been widespread with higher totals towards the Noosa area and lighter falls in the southern parts of the region.

Some of the heavier totals included 36mm at Caboolture since 9am Tuesday, 35mm at Noosaville, 29mm at Kenilworth and 27mm at Tewantin.

Activate your free Courier Mail subscription for big rewards

Final vote: Clock ticking for $130m Coast resort bid

PART 1: Coast's most influential real estate agents ranked

Forecaster Matt Marshall said a rain band had generated the heavy totals throughout the past two days.

However, he said the totals were expected to start easing by Thursday.

"The rain has really been widespread, mostly around the 20-30mm mark," Mr Marshall said.

"It should ease to more showers."

He said the totals were not expected to be large enough to cause flash flooding.

"Looking at the radar, it's less intimidating and a lot more patchy.

"But the showers should persist into the weekend, just be on and off."

He said temperatures were predicted to reach 24C for Maroochydore on Wednesday, a few degrees below the March average of 28C.

"Gradually we should see things warm up on Friday and return to average," he said.