The North (Irish) Channel has shorter and less tidal windows than those of other channels, sometimes with only five days per month when a channel swim crossing can take place, usually on a Neap tide.
Strong tidal currents can make it less likely for a swimmer under 3k/h speed to successfully cross. There have been several successful crossings with a swim speed lower than 3k/h. Swim speed and consistency of pace are vitally important.
The facts of the North channel sometimes known as the Irish channel
Stretch of water of 35 km in a straight line between Donaghadee and Portpatrick.
Due to the strong tidal currents you will swim 45 km+. With the tidal flow your swim line will head north / south depending on your swim speed and conditions.
The preferred course is from Northern Ireland to Scotland some swimmers have had a successful crossing Scotland to Ireland including oceans seven swimmer Anna Carin-Nordin
Water temperature is between 11°c and 14°c with some evidence of 15 – 16c later in the season.
The weather on the North (Irish) Channel can change quite quickly often regardless of what the weather forecasts have predicted.
Main reference point:- Click Here
South Rock Down Buoy
South Hunter Buoy
Other references:- Click Here
There will be sightings of dolphins, Minke whales and some seals, none of which will harm you. There are plenty of lion's mane jellyfish.
Here is some other data from the North (Irish) Channel Weather.
North (Irish) Channel Swim Temperature
North (Irish) Channel Swim wind speed
North (Irish) Channel Swim Hours of Daylight
North (Irish) Channel Swim Hours of Sunshine
North (Irish) Channel Swim Sea Level Pressure
If you or your team have any other questions please feel free to contact us by email and we will be happy to answer your questions.