Ok Phansa 2026
Ok Phansa (วันออกพรรษา) falls on Monday, 26 October 2026 in 2026, waxing day 15, 11th month. Here is what the day commemorates, what people do and its dates for the coming years, worked out from the Thai lunar calendar.
- วันออกพรรษา
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What Ok Phansa commemorates
On the full moon of the eleventh month the retreat ends with the pavarana ceremony, in which each monk invites the others to point out his faults. Then comes the Kathin season, when lay people offer robes to temples for a month.
What people do on the day
Alms giving and a sermon at the temple; in many regions, festivals of light, long-boat races and processions of illuminated boats (lai ruea fai).
Ok Phansa is not an official public holiday: schools, offices and shops stay open.
Alcohol sales are banned on Ok Phansa, with exceptions (international airport terminals, registered hotels and licensed entertainment venues), under the Prime Minister's Office notice of 2025.
How the date is set
Ok Phansa falls every year on waxing day 15, 11th month. Because the Thai lunar year has 354 days, the calendar date moves 11 days earlier from one year to the next, then about 19 days later in adhikamat years, when an extra eighth month is added.
Ok Phansa dates from 2026 to 2033
Dates computed from the Thai lunar calendar and checked against the official calendar up to 2027. For later years, a one-day difference remains possible.
Year Date Day Lunar date 2026 (adhikamat year) 26 October 2026 Monday waxing day 15, 11th month 2027 15 October 2027 Friday waxing day 15, 11th month 2028 3 October 2028 Tuesday waxing day 15, 11th month 2029 (adhikamat year) 22 October 2029 Monday waxing day 15, 11th month 2030 12 October 2030 Saturday waxing day 15, 11th month 2031 (adhikamat year) 31 October 2031 Friday waxing day 15, 11th month 2032 19 October 2032 Tuesday waxing day 15, 11th month 2033 8 October 2033 Saturday waxing day 15, 11th month
These tools give general information. They do not replace the advice of a doctor or a qualified professional.
Frequently asked questions
- When is Ok Phansa in 2026?
- Ok Phansa 2026 falls on Monday, 26 October 2026, waxing day 15, 11th month. The following year it will be on Friday, 15 October 2027.
- Why does the date of Ok Phansa change every year?
- Because it follows the Thai lunar calendar: waxing day 15, 11th month. The lunar year is shorter than the solar year, so the calendar date moves by several weeks from one year to the next.
- Is Ok Phansa a public holiday?
- Ok Phansa is not an official public holiday: schools, offices and shops stay open.
- Can you buy alcohol on Ok Phansa?
- Alcohol sales are banned on Ok Phansa, with exceptions (international airport terminals, registered hotels and licensed entertainment venues), under the Prime Minister's Office notice of 2025.
- What do people do on Ok Phansa?
- Alms giving and a sermon at the temple; in many regions, festivals of light, long-boat races and processions of illuminated boats (lai ruea fai).