July brings Thailand’s longest public holiday stretch of the year, built around the start of Buddhist Lent, plus a giant candle-carving festival in the country’s northeast that’s one of Thailand’s most spectacular and least-visited-by-foreigners cultural events. It’s deep rainy season everywhere, but that’s exactly when Isaan’s biggest festival happens.
This guide lists the most important Thailand events in July 2027, including confirmed dates, locations and practical information for travelers.
Thailand Events in July 2027 at a Glance
| Date | Event | Location | Type | Tourist Relevance |
|---|---|---|---|---|
| July 18 | Asalha Puja Day | Nationwide | Public Holiday / Religious | Medium |
| July 19 | Khao Phansa (Buddhist Lent begins) | Nationwide | Public Holiday / Religious | Medium |
| Mid-July (dates move with Khao Phansa) | Ubon Ratchathani Candle Festival | Ubon Ratchathani | Cultural Festival | High (for Isaan travelers) |
| July 20 | In-lieu holiday | Nationwide | Public Holiday | Low |
| July 28 | King Vajiralongkorn’s Birthday | Nationwide | Public Holiday | Low |
July 18–19: Asalha Puja and Khao Phansa (Buddhist Lent Begins)
When: Asalha Puja on July 18, 2027 (Sunday); Khao Phansa on July 19, 2027 (Monday); with an in-lieu public holiday on July 20 (Tuesday) since Asalha Puja falls on a weekend
Where: Nationwide, at every Buddhist temple in the country
Type: Back-to-back national public holidays marking Thailand’s longest holiday stretch of 2027
Asalha Puja commemorates the Buddha’s first sermon after enlightenment, delivered to his first five disciples. It falls on the full moon of the eighth lunar month, and the very next day, Khao Phansa, marks the start of Vassa — the three-month “rains retreat” during which Buddhist monks traditionally stay within their home temple rather than travel, historically to avoid trampling farmers’ new rice shoots during the wet season.
Both days carry the same nationwide alcohol sales ban as Visakha Bucha and Makha Bucha. Temples hold candlelit evening processions and merit-making ceremonies, and it’s traditional for Thais to donate large candles, robes and other necessities to monks who will be staying put for the coming months — a custom that reaches its most spectacular expression in Ubon Ratchathani (see below).
Tourist tip: With Asalha Puja on a Sunday, Khao Phansa on Monday and an in-lieu holiday on Tuesday, this three-day run gives many Thais a long weekend — expect heavier domestic travel and bookings around July 17–20.
Ubon Ratchathani Candle Festival
When: Timed to Khao Phansa, so expected around mid-July 2027; exact 2027 dates had not been announced at the time of writing
Where: Thung Si Mueang Park, Ubon Ratchathani (northeastern Thailand / Isaan)
Type: Major regional cultural festival
This is the tradition of donating candles to temples taken to an extreme: teams of artisans spend weeks carving enormous, intricately detailed wax sculptures depicting Buddhist mythology and scenes, some towering several meters tall, mounted on floats and paraded through the city with traditional music and dance. More than 50 elaborately decorated floats typically take part, with prizes awarded for the best sculptures.
It’s one of Thailand’s most visually spectacular festivals and remains relatively undiscovered by international tourists compared to Bangkok or Chiang Mai events, despite the scale of the production. Because it’s timed directly to the lunar Khao Phansa date, exact 2027 dates weren’t available at the time of writing — check closer to Khao Phansa (July 19, 2027) for the confirmed festival window.
Tourist tip: Ubon Ratchathani is a genuine flight or long-distance bus trip from Bangkok, not a day trip — worth building a dedicated Isaan leg of your itinerary around if the dates align.
July 28: King Vajiralongkorn’s Birthday
When: July 28, 2027 (Wednesday)
Where: Nationwide
Type: National public holiday
This holiday marks the birthday of King Maha Vajiralongkorn (Rama X). Government offices, banks and most businesses close, and public buildings across the country are decorated with royal portraits and yellow bunting (yellow being the color associated with Monday, the King’s birth day). Expect quieter city centers and reduced hours at some attractions rather than any major public spectacle for tourists.
Tourist tip: Government offices and some attractions close for the day — check opening hours in advance if your itinerary depends on them.
What Is July Like for Travelers in Thailand?
July sits deep in the southwest monsoon nationwide. Expect regular rain, especially in the afternoons and evenings, with the wettest conditions typically in the south and west coast; northern and northeastern Thailand tend to see somewhat less consistent rainfall. Humidity stays high throughout.
It remains a genuine low season for beach tourism — expect the lowest hotel prices of the year on the islands and noticeably thinner crowds almost everywhere except during the Asalha Puja/Khao Phansa long weekend, when domestic travel picks up. It’s an excellent month, weather aside, for inland and cultural travel, including a trip to Ubon Ratchathani if the Candle Festival timing works out.
Where to Stay in Thailand in July
Bangkok
A useful base for onward travel to Ubon Ratchathani (by flight or overnight bus/train) if you’re timing a trip around the Candle Festival.
See our guide to where to stay in Bangkok, or compare properties directly in our best hotels in Bangkok guide.
July Events in Thailand: What Should Tourists Prioritize?
- Ubon Ratchathani Candle Festival — a genuine bucket-list detour if your dates align with Khao Phansa, and far less crowded with foreign tourists than Thailand’s better-known festivals
- Asalha Puja / Khao Phansa (July 18–19) — plan around the two-day alcohol ban if you’re not attending temple ceremonies
- King’s Birthday (July 28) — minor for most travelers, mainly relevant for planning around closed government offices
Bottom Line
July is a quiet month for beach tourism but a rewarding one for travelers willing to head inland: Thailand’s longest holiday stretch of the year opens the door to one of its most spectacular and least internationally known festivals, the Ubon Ratchathani Candle Festival.
Pack for rain, expect low-season prices almost everywhere, and if the Candle Festival’s lunar-calendar dates line up with your trip, it’s worth the detour to Isaan.
Sources
- CalendarDate.com — Asalha Bucha 2027 in Thailand (July 18 date)
- Global Holidays Calendar — Thailand Public Holidays 2027 (Khao Phansa and in-lieu holiday dates)
- Thaizer — Ubon Ratchathani Candle Festival (timing and what happens)
- Office Holidays — H.M. King’s Birthday in Thailand 2027 (July 28 date)
Planning a wider Southeast Asia trip?
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Singapore With Me — Singapore travel guides