Calan Mai for Kids – Welsh May Day Traditions Explained
Imagine waking up on the first morning of May. Houses are decorated with green branches. Bonfires have been lit. Children in one Welsh village are carrying decorated branches from door to door, while elsewhere families are preparing for fairs, singing, food and the beginning of a new season. This is Calan Mai — traditional Welsh May Day.
Today, May Day in Britain is often associated with a bank holiday, spring flowers and perhaps a maypole.
But the Welsh story is much richer.
Records preserved by Amgueddfa Cymru – Museum Wales show that Calan Mai customs varied enormously from one Welsh community to another.
Some were cheerful. Some were practical. Some involved beliefs about luck or protection. And a few were extremely strange by modern standards.
What does Calan Mai mean?
Calan Mai means the first day of May or May Day.
| Welsh | Meaning |
|---|---|
| Calan | The first day of a month or year |
| Mai | May |
| Calan Mai | May Day / the first day of May |
1 May — traditional Welsh May Day
Why did summer begin on Calan Mai?
Today, many people think of June as the beginning of summer.
Traditional calendars did not always divide the seasons in exactly the same way.
In Welsh tradition, Calan Mai marked the beginning of summer.
The opposite seasonal point was Calan Gaeaf on 1 November, which marked the beginning of winter.
| Traditional date | Seasonal meaning |
|---|---|
| 1 May – Calan Mai | Beginning of summer |
| 1 November – Calan Gaeaf | Beginning of winter |
How was Calan Mai celebrated?
Wales.com records three broad features of traditional Calan Mai:
🌿 Houses were decorated
Fresh greenery and branches were used around homes.
🔥 Bonfires were lit
Fire formed part of some traditional celebrations.
🎉 Communities celebrated
Calan Mai could be a time for gatherings, festivities and seasonal customs.
🌱 Summer began
The day marked a major turning point in the traditional seasonal calendar.
Children, singing and the decorated May branch
One of the most interesting Calan Mai customs recorded by Museum Wales comes from Treuddyn in Flintshire.
A man named Alun J. Ingman, born in Treuddyn in 1906, remembered what children did there on Calan Mai.
According to his recollection, some children:
- wore unusual or loose old clothes;
- sometimes painted their faces;
- carried a branch;
- decorated the branch with pieces of cloth;
- went from door to door;
- sang a song;
- hoped to receive a small gift or coin.
The May branch
Children carried a decorated branch from house to house and sang for a small reward.
It sounds rather like a springtime cousin of the Welsh Calennig tradition.
A modern Calan Mai rhyme for children
Museum Wales preserves a traditional Treuddyn verse, but regional and dialect forms can be difficult for young learners. Here is a new Prydain rhyme inspired by the custom:
Green is the branch and bright is May,
Summer has come to Wales today.
Leaves on the trees and flowers too,
A happy Calan Mai to you!
Modern children's rhyme written for Prydain.co.uk — not presented as a historical Calan Mai song.
The Calan Mai children who collected butter
Another unusual custom was recorded in north Pembrokeshire.
Museum Wales records women and children travelling around farms carrying bowls or basins.
Instead of asking for sweets, they were given pieces of butter.
The collected butter could provide enough to spread on bread for weeks afterwards.
Butter collecting
Women and children visited farms and received butter in their bowls.
Why did people put green branches above doors?
Greenery appears repeatedly in old Welsh Calan Mai customs.
At the beginning of May, new leaves and branches were powerful signs that winter had ended.
Museum Wales records several local examples.
Green leaves above the door
People were remembered decorating the top of the front door with green leaves.
Traditional belief said the greenery could help protect the home from harmful magic.
Ash branches at the entrance
Some households placed ash branches above their front doors.
The remembered purpose was to keep trouble away from the house and protect its inhabitants.
Were bonfires lit at Calan Mai?
Yes.
Wales.com records bonfires as one of the traditional features of Calan Mai celebrations.
Fire appears in seasonal celebrations across many European cultures. At Calan Mai, it fitted naturally with a festival marking a major change in the year.
Why was Calan Mai important to farmers?
For a farming community, May was not simply a month on a calendar.
It meant changes in:
- grass growth;
- livestock;
- working hours;
- food production;
- employment;
- weather;
- the amount of daylight.
Museum Wales records several customs connected directly with agricultural life.
A blessing for farmers
A chapel service was held asking for God's blessing on local farmers.
Seasonal sheep milking
Museum Wales records a particular sheep-milking practice connected with the period after the Calan Mai fair.
What were Calan Mai hiring fairs?
This part of the tradition shows how different the world of work once was.
Museum Wales records hiring fairs being held in Welsh towns around Calan Mai.
Farm workers looking for employment could attend the fair. Farmers looking for servants or workers would also be there.
A person might agree to work on a farm for an entire year.
Travel to the fair
Workers and farmers gathered in a town.
Look for work
Farm servants searched for an employer.
Agree on wages
Worker and farmer discussed the job and the amount that would be paid.
Work for the year
The worker could then remain with the farm until the following year's hiring period.
Some very strange Calan Mai customs
Museum archives preserve customs that would seem extremely odd today.
They are valuable because they show that folk traditions were not always neat, pretty or designed for tourists.
💀 Horse-skull prank
Museum Wales records a north Wales custom in which young men could place a horse skull above the door of a woman who had angered them.
This is historical information, not something to recreate.
🩸 Old medical beliefs
One recorded memory describes a woman having a small amount of blood removed around Calan Mai, reflecting older medical beliefs.
This is not a modern health recommendation.
Is Calan Mai still celebrated today?
Most people in Wales no longer follow the old local customs described above.
However, May Day itself has certainly not disappeared.
The first Monday in May is a UK bank holiday, although that is not always exactly 1 May.
Modern communities may mark the season with:
- May fairs;
- community festivals;
- music;
- dancing;
- nature activities;
- school events;
- bank-holiday celebrations.
Old Calan Mai traditions can also be rediscovered through museums, archives and local-history projects.
Calan Mai Welsh words for kids
| Welsh | English |
|---|---|
| Calan Mai | May Day / first day of May |
| Mai | May |
| Haf | Summer |
| Cangen | Branch |
| Dail | Leaves |
| Coeden | Tree |
| Blodyn | Flower |
| Cymru | Wales |
Calan Mai history detective
Try matching each custom with the question it makes us ask about life in the past.
🌿 Decorated branches
Why would new green leaves feel important after a long winter?
🧈 Butter collecting
Why might food be considered an important gift?
🎵 Door-to-door singing
Why were songs useful in communities before recorded music?
👨🌾 Hiring fairs
How did people find work before newspapers, phones and the internet?
🔥 Bonfires
Why does fire appear in so many old seasonal celebrations?
🏠 Greenery above doors
What do folk beliefs tell us about the worries people had in everyday life?
🌿 Build Your Calan Mai Branch
Imagine you are a child in Treuddyn preparing a May branch. Choose decorations to build your own version.
🧠 Calan Mai Quiz for Kids
My Calan Mai Activity Sheet
Name: ________________________ Date: ______________
Draw a branch. Add leaves, flowers and strips of colourful cloth.
Write three things you might notice outside in May.
1. ______________________
2. ______________________
3. ______________________
Treuddyn: ____________________
North Pembrokeshire: ____________________
Hiring fair: ____________________
One Calan Mai custom:
____________________
One way we celebrate May today:
____________________
Useful Welsh words
May Day
Summer
Branch
Leaves
Flower
Wales
prydain.co.uk • Free Welsh children's learning resource
Calan Mai activities for primary school
🌿 Make a paper May branch
Create a branch from recycled card and add paper leaves, flowers and strips of fabric.
🗺 Map the customs
Find Treuddyn, north Pembrokeshire, Llanwenog, Kidwelly, Llangristiolus and Builth Wells on a map of Wales.
🎵 Write a May song
Write four lines celebrating leaves, flowers and the arrival of summer.
🌱 Seasonal observation
Walk outside and record five differences between the landscape in winter and early May.
👨🌾 Hiring-fair role play
Pretend you live 150 years ago. What questions would you ask a farmer before agreeing to work for a year?
🧈 Food and value
Discuss why butter, bread and other food could be valuable gifts in a farming community.
How does Calan Mai fit the Welsh seasonal calendar?
Prydain's Welsh traditions now reveal a useful pattern.
| Festival | Time of year | Main idea |
|---|---|---|
| Calennig | 1 January | New Year gifts and wishes |
| Hen Galan | 13 January in Cwm Gwaun | Old New Year tradition |
| Gŵyl Fair y Canhwyllau | 2 February | Candles and the approach of spring |
| Calan Mai | 1 May | Traditional beginning of summer |
| Calan Gaeaf | 1 November | Traditional beginning of winter |
Questions about Calan Mai
What is Calan Mai?
Calan Mai is Welsh May Day, celebrated on 1 May. Traditionally it marked the beginning of summer in the Welsh seasonal calendar.
When is Calan Mai?
Calan Mai is on 1 May. The modern UK early May bank holiday is held on the first Monday in May and therefore does not always fall on 1 May.
What does Calan Mai mean?
Calan refers to the first day of a month or year, while Mai means May. Calan Mai therefore refers to May Day, the first day of May.
How was Calan Mai celebrated in Wales?
Customs varied across Wales. Recorded traditions include decorating houses with greenery, lighting bonfires, holding celebrations, singing from door to door, carrying decorated branches, collecting food and attending hiring fairs.
What did children do on Calan Mai?
In the Treuddyn area, children were remembered dressing up, carrying a branch decorated with pieces of cloth, singing from door to door and hoping to receive a small gift.
Why did children collect butter?
Museum Wales records women and children in north Pembrokeshire travelling around farms and receiving pieces of butter. The butter could then provide food for the household for weeks.
Why did people decorate doors with greenery?
Green leaves and branches reflected the changing season. Some local Welsh folk beliefs also treated certain greenery as protection against bad luck, spirits or harmful magic.
Were bonfires part of Calan Mai?
Yes. Wales.com records bonfires, house decorations and large celebrations among traditional Calan Mai customs.
What were Calan Mai hiring fairs?
Hiring fairs brought farmers and farm workers together. Workers could agree employment, wages and sometimes service lasting until the next year's hiring period.
Is Calan Mai still celebrated?
Most historic local customs are no longer widespread, but May Day remains part of the British calendar and Welsh museums and cultural organisations continue to preserve knowledge of Calan Mai traditions.
Sources and further reading
The historical customs in this guide are based primarily on material preserved by Amgueddfa Cymru – Museum Wales and official Wales.com cultural information. The illustration, interactive game, modern rhyme, quiz and printable are original Prydain resources.
