Thailand in July

Thailand in July: where the summer sun is

July is summer holiday time for many travellers and monsoon season for much of Thailand. The Gulf islands remain the reliable beach choice, while Bangkok and the north are green, lively and very doable.

Kylian DevBy Kylian Dev

  • Good with the right region
  • Shoulder season
  • 3 ideal destinations
Good with the right region

Our verdict for July

For a July trip, build your route around the Gulf of Thailand. Samui, Phangan and Tao usually have their best summer weather, and pairing them with Bangkok and Chiang Mai makes a classic route. The Andaman coast gets frequent rain and rough seas; it is not a write-off, but beach days are a gamble.

North

Mixed

Chiang Mai, Chiang Rai, Pai

Rainy season, usually with a daily shower rather than constant rain. Lush jungle, full waterfalls and fewer visitors.

Bangkok & centre

Mixed

Bangkok, Ayutthaya, Hua Hin

Hot and humid with frequent afternoon storms. Plan indoor backups such as museums, malls and cooking classes.

Andaman coast

Rainy

Phuket, Krabi, Phi Phi, Lanta

Monsoon: grey days, strong waves and some boat routes reduced. Dry spells happen, but they are not guaranteed.

Gulf islands

Great

Koh Samui, Phangan, Tao

Mostly sunny and dry: the best beaches in Thailand in July are on Samui, Phangan and Tao.

Region by region

Weather in Thailand in July, by region

The bar shows how many of our destinations in each region are in their ideal season. The strip shows the whole year, with this month outlined.

Method: each destination has a list of ideal months in our data; a region is rated from the share of its destinations in their ideal window. It is a planning guide based on typical seasons, not a forecast.

Where to go

Best places to visit in Thailand in July

In July, our data points to the Gulf islands for beach time. These destinations are in their ideal window.

Doable, off peak (0)

None: every destination is either ideal or rainy this month.

Outside their ideal window but usually fine to visit: expect some showers, heat or rougher seas.

Typical conditions

What the weather is like in July

Expect heat around 30–33°C, high humidity and regular showers in Bangkok, the north and on the Andaman coast, often in the afternoon or overnight. The Gulf side is much drier. Seas can be rough on the west coast, so ferries and speedboats there may be cancelled at short notice.

What to pack in July

  • A rain jacket or poncho that folds small
  • Quick-dry clothes and a spare pair of sandals
  • A waterproof phone case for boat trips
  • Mosquito repellent with DEET or icaridin
Build your packing list for July

Crowds & prices

Crowds and prices in July

Shoulder season

Summer holidays bring a second, smaller peak: the Gulf islands and Bangkok are busier than in June and prices there rise a little. The Andaman coast stays quiet, with good deals on hotels.

Tourist season through the year

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Taller bar = busier and usually pricier. Based on typical tourist seasons, not live prices.

Festivals

Festivals in Thailand in July

Lunar festivals shift from year to year: check the exact date before you book.

Plan your July itineraryPick destinations that are in season and get transfer times and a day-by-day plan.Compare all 12 monthsOur month-by-month guide with the full region-by-month weather grid.

FAQ

Thailand in July: your questions

Is July a good time to visit Thailand?

Yes, if you plan around the Gulf islands (Samui, Phangan, Tao), which are usually sunny in July. Elsewhere it is the rainy season, but rain often falls in short bursts.

Is Koh Samui better than Phuket in July?

Weather-wise, usually yes. Koh Samui is on the Gulf side and generally dry in July, while Phuket is in the southwest monsoon with more rain and rough seas. Full comparison: Phuket vs Koh Samui.

What festivals take place in July?

Asahna Bucha and Khao Phansa, the start of Buddhist Lent, usually fall in July. Ubon Ratchathani celebrates with a famous Candle Festival. Alcohol sales are normally banned on those days.

Keep planning