Oxfam says that some 670,000 people have left Syria since the crisis began in March 2011 but numbers have risen recently. In Jordan alone, the number of people crossing daily trebled in the past week.
The cold weather has seen an increase in the number of those suffering respiratory infections and pneumonia, according to the aid agency, which is distributing mattresses, blankets, heaters and gas oil to help new arrivals.
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The Met has issued a weather warning ahead of heavy rain and strong winds expected overnight and into tomorrow.
Police said Darren Deon Vann, 43, had confessed to all seven killings and told police where three of the bodies were.
The daughter of a pensioner who starved herself to death has told ITV News that her mother did not die in pain.