While it is possible to sail around the world quickly (the world record is 40 days), a typical around-the-world sailing expedition takes three or four years. The voyage from Europe to South America takes about five weeks, but most people stop over in North America for several months. From South America to Africa it's another five weeks, and from Africa to Asia usually through the Indian Ocean, then back across the Pacific to reach Australia. It's possible to make the trip in two years by stopping over in various places, but this is rare.
The total distance sailed is about 22,000 miles (35,500 km). Sailing time averages out to be about 50 miles (80 km) per day.
An average windspeed of 10 knots is sufficient to sail around the world in 90 days. But large areas of calm are common, so the actual sailing time will be longer. A storm at sea can cause delays of many days or even months while ships are repaired or replaced parts are bought at great expense.
In October 2004, Australian Andrew Farmer completed an around-the-world race in 81 days 6 hours, breaking his own record by more than 20 days. The next year American Michael Moore broke that record with a time of 80 days 11 hours.
If you sail around the world for fun, stopping at various locations along the route, the voyage will take you around 3.5 years. However, if the route is more important than the goal, the trip may be completed in 40 days.
The journey starts in San Francisco, which is located in California. The distance from San Francisco to Singapore is about 9,000 miles (14,500 kilometers). You could probably go faster if you wanted to. A speed of half way between London and Sydney has been estimated at 4,400 miles per year (7,200 kilometers).
In any case, it would be hard to beat the experience of traveling around the world. It's possible but difficult.
The main obstacle is time. If you want to see most of the world within a year, you'll have to leave very early in the morning or late at night. There are also safety concerns: sailing around the world is extremely dangerous because there are many ships that don't see you and ocean currents that can carry you far away from your destination.
But these obstacles can be overcome if you're determined enough. And if you do decide to set out on this journey, make sure to pick a date when other people aren't going anywhere too.
Sailing across the Atlantic takes roughly 3–4 weeks, but if you're lucky, use shortcuts, and have a speedy sailboat, you can reduce it down to two weeks. It might take up to a month to recuperate if you are lacking appropriate breeze for a week or longer. During hurricane season (June-November), expect slow going. You can cut your time by about half if you go during off-season or springtime.
Sailing directions are your best friend. They will tell you what winds to expect and when to expect them. Use nautical charts to know where all of the dangers are so you can avoid them. Have a plan for everything from weather to engine problems. And remember, the ocean is always winning!
Overall, sailing from America to Ireland is not difficult, but there are many factors outside of your control that can affect how fast you travel. Sailing conditions, the type of boat you use, and the route you take are just some of these factors. But with knowledge, good planning, and good luck, you can enjoy the journey from America to Ireland. So pack your bags, get in touch with your soul, and set sail!