There could be more misery, as the Met Office issued a yellow warning about rain tomorrow.
Storm warnings remain for today, but heavy rain is expected to set in on Tuesday morning, causing flooding and driving hazards in some areas.
According to the Met Office, there is a low probability that homes and businesses will be flooded and some buildings damaged.
It said: "If it comes to floods, it can come to delays or cancellations of the train and bus traffic.
"Spray and flooding can lead to difficult driving conditions and some road closures."
The situation will improve over the course of the week as warm, humid temperatures are expected by Tuesday afternoon.
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A spokesman for the Met Office added, "Tomorrow will rain heavily first, but later a bit drier, maybe brighter.
"Another damp day and warm in the sunshine. Maximum temperature 21c"
Temperatures are expected to stay high towards the end of the week, although it is expected to maintain a steady level of humidity.