Thailand Infos

Thailand in July: weather, best places and festivals

In July 311 millimetres fall in Chiang Rai, 430 in Khao Lak, 258 in Phuket and 972 on Koh Chang, almost a metre of rain in one month. It stays changeable in only eight places: Ayutthaya (99), Kanchanaburi (103), Hua Hin (93), Pattaya (97), Chiang Mai (140) and, in the Gulf, Koh Samui, Koh Phangan and Koh Tao (116).

If you travel in July, you are best off in the Gulf or on the coast south of Bangkok, where it is 31 to 33 degrees by day. Fewer boats run to Koh Lipe and Koh Kood at this time, so plan your journey with time to spare.

All 20 destinations in July

Sorted by rain, driest first. The figures are monthly averages from 1981 to 2010; the temperature is the average daily high.

changeable 8 places

60 to 150 millimetres, expect showers.

Curved sandy beach of Hua Hin in warm evening light, with a green hill and a golden temple at the end of the bay and fishing boats in the waterHua Hin93 mm33 °C, 26 °C at nightQuiet seaside resort on the GulfPattaya beach promenade in the evening with palm trees, a curved bay and high-rises in the backgroundPattaya97 mm31 °C, 26 °C at nightBeach city close to BangkokThree restored bell-shaped chedis of Wat Phra Si Sanphet in Ayutthaya in warm morning light, with lawn and old brick walls in frontAyutthaya99 mm34 °C, 25 °C at nightOld royal capital on the riverThe steel Bridge on the River Kwai with its curved arches over the calm river in warm evening light, green trees on the bank and mountains in the backgroundKanchanaburi103 mm34 °C, 25 °C at nightBridge on the River Kwai and waterfallsHalf-moon bay with white sand and coconut palms on Koh Phangan, green hills behind, a longtail boat in the shallow turquoise waterKoh Phangan116 mm32 °C, 25 °C at nightQuiet bays, loud full moon nightsWhite sand beach with leaning coconut palms and turquoise sea, with a golden Buddha statue on a headland in the background on Koh SamuiKoh Samui116 mm32 °C, 25 °C at nightPalm island in the GulfThree small green islands joined by a white sandbar, surrounded by clear turquoise water at Koh TaoKoh Tao116 mm32 °C, 25 °C at nightSmall island for diversGolden chedi of a temple on a wooded hill, surrounded by mist, rice terraces and mountains in northern Thailand, seen from aboveChiang Mai140 mm32 °C, 24 °C at nightTemples and mountains in the north

rainy season 12 places

Over 150 millimetres, the rain shapes the day.

Sandstone Khmer temple Phanom Rung in warm afternoon light, with green rice fields in front in northeastern ThailandIsan173 mm33 °C, 25 °C at nightKhmer temples and the MekongWat Arun on the Chao Phraya River in Bangkok at sunset, with a longtail boat on the water in frontBangkok175 mm33 °C, 26 °C at nightTemples, the river and street food stallsTwo longtail boats in a turquoise bay with a white sandy beach, limestone cliffs and coral near Krabi and the Phi Phi IslandsKrabi & Phi Phi201 mm32 °C, 23 °C at nightLimestone cliffs and islandsMisty green Pai valley at sunrise with gentle mountains and a small bamboo bridge over rice fieldsPai227 mm32 °C, 23 °C at nightMountain valley in the north-westClear turquoise shallow water and a white sandy beach on Koh Lipe, with longtail boats with colourful ribbons in front and a small island in the backgroundKoh Lipe231 mm32 °C, 24 °C at nightSmall island in the far southWhite sandy beach on Phuket with longtail boats in the turquoise water of the Andaman Sea, green hills behindPhuket258 mm32 °C, 25 °C at nightBeaches, old town and islandsLong, almost empty sandy beach on the west coast of Koh Lanta in evening light, casuarinas and palms on the shore, a longtail boat in calm waterKoh Lanta296 mm32 °C, 25 °C at nightQuiet island off KrabiWhite Temple Wat Rong Khun with sparkling mirror decorations in calm morning light, a pond with a reflection in front and green hills behind in northern ThailandChiang Rai311 mm31 °C, 23 °C at nightWhite Temple and the Golden TriangleWide, quiet sandy beach at Khao Lak in the morning light, lined with casuarina trees and coconut palms, wooded hills behind, calm Andaman SeaKhao Lak430 mm32 °C, 24 °C at nightLong beaches north of PhuketFloating bamboo raft houses on the emerald-green Cheow Lan Lake, with steep limestone cliffs behind in the morning hazeKhao Sok430 mm32 °C, 24 °C at nightRainforest and Cheow Lan LakeQuiet bay on Koh Chang with pale sandy beach, palms and turquoise water, steep, densely wooded mountains with clouds behind, a longtail boat in the shallow waterKoh Chang972 mm31 °C, 24 °C at nightGreen mountain island in the eastQuiet beach on Koh Kood with leaning coconut palms and a wooden jetty reaching into calm turquoise waterKoh Kood972 mm31 °C, 24 °C at nightQuiet island without a 7-Eleven

For places without a weather station of their own, the figures of the nearest station apply: Ayutthaya (Suphan Buri station), Khao Lak and Khao Sok (Takua Pa station), Koh Chang and Koh Kood (Trat station), Koh Lipe (Satun station), Koh Phangan and Koh Tao (Koh Samui station) and Pai (Mae Hong Son station). More places and every month in detail are on the weather page.

Festivals and public holidays in July

  • 18 July 2027Asahna BuchaBuddhist holiday, nationwideThe Buddha’s first sermon. No alcohol sales, and none on the following day either.Alcohol ban
  • 19 July 2027Start of Buddhist LentBuddhist holiday, nationwideMonks begin the rainy season retreat, also the substitute holiday for Asahna Bucha. Second day without alcohol sales.Alcohol banBanks closedOffices closed
  • 28 July 2027King Vajiralongkorn’s BirthdayPublic holiday, nationwideBirthday of the King.Banks closedOffices closed

All dates of the year are in the festival calendar.

Frequently asked questions: Thailand in July

Where is it dry in Thailand in July?

None of the 20 places stays under 60 millimetres in July. The least rain falls in Hua Hin (93 mm), Pattaya (97 mm) and Ayutthaya (99 mm).

How warm is it in Thailand in July?

By day the average ranges from 31 degrees in Koh Kood to 34 degrees in Ayutthaya. The coolest nights are in Krabi & Phi Phi, at an average of 23 degrees.

Which place is driest in July?

Hua Hin with 93 millimetres, then Pattaya with 97 and Ayutthaya with 99. No place is dry in July in the sense of under 60 millimetres.

How the seasons are spread over the year is covered in the guide Best time to visit Thailand. All twelve months at a glance: the best time to visit overview. Also useful: the costs per day and the visa calculator.

Sources

  1. Thai Meteorological Department (TMD), climate averages 1981 to 2010, rounded
  2. The Nation: Bank of Thailand sets 18 bank holidays for 2027 (28 August 2026)
  3. Bank of Thailand: financial institutions’ holidays 2026
  4. Bank of Thailand Notification 37/2569: holidays 2027 (via tnews, 26 August 2026)
  5. Sanook: holidays 2027 (7 September 2026)
  6. myhora: Loy Krathong dates
  7. Full Moon Party Thailand: dates
  8. Straits Times: alcohol sales ban on Buddhist holidays
  9. The Nation: exemptions from the alcohol ban
  10. Surin Elephant Festival