Thai Mother's Day on 12 August: What It Means and How to Show Respect
If you are in Thailand this month you will start noticing blue everywhere. Blue bunting on overpasses. Blue shirts in the office. Blue lights strung along shopfronts and government buildings.
That is not decoration for its own sake. 12 August is National Mother’s Day in Thailand, and it is one of the most emotionally significant days on the Thai calendar.
Why 12 August
Most of the world celebrates Mother’s Day in May. Thailand does not.
Thai Mother’s Day falls on 12 August because that is the birthday of Queen Sirikit, the Queen Mother, who is regarded as the mother of the nation. Mother’s Day was formally moved to this date in 1976 to align the two, and it has been a national public holiday ever since.
In 2026 the date falls on a Wednesday, and the Cabinet confirmed in July that 12 August continues as an annual public holiday marking both her birthday and National Mother’s Day.
Queen Sirikit passed away in October 2025, and that gives this year’s observance a different weight than in years past. Expect the tone to feel more reflective and the tributes to feel more personal.
Why Everyone Wears Blue
Thai tradition assigns a colour to each day of the week. Queen Sirikit was born on a Friday, and the colour for Friday is light blue.
So in the days around 12 August, Thais wear light blue as a mark of respect. If you are here, wearing something light blue is a small gesture that Thai people genuinely notice and appreciate. You do not need to be Thai to take part, and nobody expects you to get every detail perfect.
What Actually Happens on the Day
Merit making comes first. Families visit temples in the morning to offer food to monks and pray for their mothers’ health and long life.
Jasmine is the flower of the day. Children present their mothers with jasmine garlands, called malai, because jasmine symbolises the purity and sweetness of a mother’s love. You will see them sold on nearly every corner in the days beforehand.
Schools hold ceremonies where students kneel before their mothers to offer garlands and say thank you. It is genuinely moving to witness, even as an outsider.
Government buildings and provincial halls hold formal ceremonies with speeches, songs and candlelit tributes. In Bangkok the largest public gathering has traditionally been at Sanam Luang, across from the Grand Palace, with candle lighting in the evening.
What This Means for Your Week
A few practical notes.
It is a public holiday. Banks, government offices and some businesses will be closed. Immigration offices will be closed too, so do not plan a visa errand for that day.
Malls, transport and restaurants operate normally, and shopping centres often run their own Mother’s Day promotions and displays.
Traffic around ceremony areas in central Bangkok will be heavier than usual in the evening.
How to Take Part Respectfully
Wear light blue. Keep any conversation about the royal family respectful. Thailand’s lèse majesté law is serious and it applies to foreigners exactly as it applies to Thai nationals.
If you visit a temple, dress modestly with shoulders and knees covered, and remove your shoes at the entrance. If you have Thai colleagues, friends, a landlord or a favourite som tam lady, a simple acknowledgement of the day goes a long way.
And if your own mother is somewhere else in the world, this is a very good day to call her.
Understanding Thai culture is the difference between living in Thailand and living alongside it. Download the Moving to Thailand Guide at ThaiNewbies.com for the full breakdown of Thai customs, holidays and everyday etiquette.
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