A number of flood alerts are expected to be issued tonight.
Latest forecasts also predict the unsettled weather will return at the end of this week with a further band of heavy rain coupled with severe gales expected for Thursday and Friday.
The Environment Agency is not expecting any flooding from rivers but is warning of the potential risk to exposed areas along the coast.
Environment Agency area manager James Humphrys said: “With stormy weather on the way tonight and towards the end of this week, our teams will continue to work hard to ensure we are prepared.
“We are receiving regular weather updates from the Met Office, continuously monitoring both tidal conditions and river levels and have officers out checking flood defences, closing flood gates and clearing any river blockages.”
The rain could also lead to some localised flooding from run-off and drains unable to cope with the increased volumes of water.
Mr Humphrys said: “People should be aware that there could be a lot of water around, so avoid trying to drive or walk through any flooding and be sensible when out and about, particularly around the coast.
“Now is a good time for anyone who lives in an area vulnerable to flooding to think about the precautions they can take to protect their properties.”
Anyone who would like to register for the Environment Agency’s 24-hour flood warning service can call Floodline on 0845 9881188.
Further advice and latest information on flood warnings is also available on the Environment Agency website.