Wan Phra CalendarThai Buddhist Uposatha days, month by month
Find upcoming Wan Phra observance days across the waxing and waning lunar cycle. Browse by month and year, switch to Thai, and distinguish the four recurring lunar markers used in Thai Buddhist practice.
Live monthly calendar
Choose a year and month.
Highlighted dates mark Wan Phra. Use the calendar’s own language tab to switch between English and Thai labels.
Thai Buddhist Days — Wan Phra (Uposatha) Calendar — August 2026
›Timezone: Asia/Bangkok • Server-rendered • If you are sharp enough to catch it, you are dangerous enough to use it.
The recurring rhythm
Four observance points in a lunar month.
8th Waxing
The first-quarter observance as the visible Moon grows.
Full Moon
The full-moon Uposatha and the most visible point of the cycle.
8th Waning
The third-quarter observance as illumination recedes.
New Moon
The dark-moon observance; the final waning count varies with month length.
What Wan Phra is
A recurring day of observance
Wan Phra means “monk day” or Buddhist holy day in Thai usage. It corresponds to Uposatha: regular lunar-cycle days associated with temple visits, reflection, merit-making, and renewed attention to ethical practice.
- A living religious and cultural observance
- Structured by the Thai lunar calendar
- Observed differently by temple, family, and region
What the calendar does
A date reference, not a ritual prescription
The tool identifies calendar dates and lunar markers. It does not replace temple announcements, local practice, monastic guidance, or official holiday notices.
- Confirm locally when planning attendance
- Allow for regional and institutional convention
- Use Bangkok time for the displayed date
Use with respect
Let the calendar support practice—not flatten it.
A date can guide planning, but the meaning of Wan Phra is carried through observance, community, and tradition.
Plan
Mark likely temple visits, quiet time, family observance, or community activities.
Confirm
Check the local temple or community calendar when attendance or ceremony matters.
Prepare
Approach the day with the conduct and intention appropriate to your own tradition.
Record
Keep both the Gregorian date and lunar marker when documenting observance.
Observe the rhythm