The Thames Barrier is due to reopen at 6pm after high tides earlier on.
But flooding is still causing problems for people in and around the capital.
In Sunbury-on-Thames, Surrey, children's parks and river paths are underwater.
Also, some trains coming into London are delayed due to two land slips in southern England.
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Mr Dobran had been induced into a coma for several weeks following the August attack, before being moved to a nursing home.
The Cranberries singer Dolores O'Riordan has died in London at the age of 46, her publicist has confirmed.
The body of the girl, who has only been named as Baby M by officers, was discovered at the edge of Manor Park in Aldershot.