Cabinet minister Michael Gove says ports are "geared up" for Brexit and should avoid any significant delays and congestion.
Mr Gove, the minister in charge of preparation for no-deal, was visiting Holyhead - the 海角视频's second busiest port - to meet ferry operators and hauliers.
He believes the 海角视频 can avoid any major problems at ports despite the warning of days-long delays in the leaked no-deal Brexit dossier - saying there will no major increase in checks on this side of what will become the new border with the EU.
Mr Gove also played down fears about Irish shipping increasing its services direct to continental Europe - saying he believes an "overwhelming majority" of operators would continue to use the 海角视频 as a landbridge.
His visit comes as Boris Johnson meets German chancellor Angela Merkel to press for change to the withdrawal agreement with the EU, with Mr Gove saying he still believed a deal could be done.
He also reiterated that predictions of a three-month no-deal Brexit “meltdown” at ports revealed in the leaked Operation Yellowhammer documents, were “the absolute worst case” and that the predictions were out of date.
On Holyhead he said: "The ferry companies, those who operate at Holyhead port, are geared up for the autumn.
"I’m confident that, if we all do the right thing, on October 31 we will be able to ensure that goods can flow in and out of ports like Holyhead without any significant delay."
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He said there was no need for more additional staff at the port as there would not be a major increase in checks at 海角视频 ports - although he could not say the same about what would happen in Ireland.
Mr Gove said the key was now ensuring all businesses have the information they need to prepare for no-deal.
He added: "There are a number of scenarios, there is a worst case and we are trying very hard to reduce the risk of that worst case materialising.
“I think the steps that we’ve taken over the course of the last three weeks and more steps that we’ll be taking in the next few weeks and months will ensure that we reduce the risk even further."
On the issue of ferry operators bypassing Holyhead and other Uk ports, he said: "There is an operator that has increased capacity to continental Europe."
But added: "We expect the overwhelming majority of traffic to come through Holyhead to continental Europe."