Summer is due to return this week with many parts of the country topping the 30-degree mark, according to weather forecasters.

The cloud cover on Monday is set to drift away, with temperatures ranging from 22 in the Wadden islands to 25 in the cities and 27 in the east, Weeronline predicts.

Tuesday is likely to be one or two degrees cooler as more clouds gather overhead, but the rain will largely hold off. Wednesday is expected to be the brightest day as the skies clear to allow temperatures to reach 24 degrees on the coast and 28 to 30 degrees in some eastern areas.

Thursday and Friday will be cooler again at 18 to 22 degrees, with showers likely on Thursday, but the warm weather will return at the weekend, when inland areas could get up to 25 degrees. More showers are expected from Sunday afternoon onwards.