Ireland's patron saint is celebrated on St. Patrick's Day on the 17 March each year.
Celebrations are held across Ireland as well as by those with Irish ancestry across the world. Dublin hosts the St. Patrick's Day festival, a five-day event including a parade through the streets of the city on St. Patrick's Day and a fireworks display on the Saturday evening. Check the Dublin weather forecast.
One of the largest celebrations is in Downpatrick, County Down which is where Saint Patrick is thought to have been buried. Their annual Parade attracts in excess of 30,000 spectators. Other celebrations are held across Northern Ireland including Belfast and Derry.
Events will take place in many places across Northern Ireland. Check out our weather forecasts for Belfast and Derry. Wherever you're planning celebrations for St. Patrick's Day, check your local weather forecast.
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17 March - Will there be a pot of gold at the end of the rainbow this St Patrick's day? Check your local forecast.
St Patrick's Day is celebrated worldwide, with Irish-themed pubs hosting special events, including Irish music and dancing.
In the UK Birmingham hosts the largest St Patrick's day event, with a parade through the centre of the city. Check the Birmingham weather forecast before heading to this event.
Since 1991 America have celebrated Irish-American heritage month through March to tie in with St Patrick's Day. A number of parades take place across America to mark the saint's day, the largest taking place in New York. Chicago celebrates St Patrick's Day by dyeing the main river in the city green. Will these international events be a success? Check the world weather forecast.
St Patrick's Day celebrates the life of a bishop from the fourth century, who then became the Patron Saint of Irish. The day is celebrated on 17 March as this marks the death of the saint in 461. The day began as a feast day to mark St Patrick's Day in the 17th century and then became a national holiday in the Republic of Ireland in 1903.
St Patrick's Day is celebrated across the Republic of Ireland and the rest of the world by wearing the symbolic colour of the day, green, eating traditional Irish food and drinking Irish stout. The Irish symbol of the shamrock is often also worn on the day.