Weather in Thailand in June 2026: First-Timers’ Travel Tips

June in Thailand is hot and humid, marking the start of the early rainy season. Days reach 30–33°C (86–91°F), nights hover around 25°C (77°F), and humidity near 75% can push the "feels-like" temperature to 37–38°C (99–100°F).

June is actually the driest month of the rainy season (May–October), but you'll still see rain on 15–22 days, increasing from north to south. Showers are usually brief and heavy, often in the afternoon or evening, while mornings and early afternoons tend to stay sunny or partly cloudy.

June is milder than July and August, with lighter rains, fewer crowds, and better prices. If you are a bit flexible, it can be one of the most rewarding months to travel.

What's the Weather Like in Thailand in June?

Andaman Coast (Phuket, Krabi, Phi Phi)

On the Andaman Coast, you can expect rain roughly half the month, with about 220 mm of rainfall. Koh Lanta and Khao Sok usually get a bit less than the wetter spots like Phuket or Krabi.

Expect beaches to be "red-flagged" (no swimming) occasionally, and snorkeling or island-hopping may face last-minute cancellations due to rough seas and strong currents. So plan with some backup activities.

Gulf of Thailand (Koh Samui, Koh Phangan, Koh Tao)

A much drier choice, with about 130 mm of rain. Seas stay calm, which is why this coast is considered the best beach option in June. Koh Tao is an exception, with conditions closer to the Andaman side.

Bangkok & Central Thailand

Central Thailand, including Bangkok, is the hottest region, with highs of 33–34°C (91–93°F) and sticky humidity.

Rain falls 14–16 days, usually as short afternoon showers. These can cause brief street flooding, but the water drains fast. If you want drier weather, check out Hua Hin and Kanchanaburi.

Northern Thailand (Chiang Mai & the Highlands)

Cooler and fresher, with highs near 31°C (88°F) and 12–15 rainy days. Showers keep the hills lush and waterfalls at their strongest. Higher elevations like Doi Inthanon (2,500 m) stay comfortably cool—a nice break from the city heat.

Where to Go and What to Do in June

Koh Samui: Reliable Beaches for First-Timers

In June, Koh Samui is your best bet for beach time. Rain is lighter here than on the Andaman coast, and the sea is usually calm enough for swimming, snorkeling, and easy island-hopping. Coconut groves, waterfalls, and local markets make it more than a beach destination.

As the largest island in the Gulf, Samui also has the widest choice of places to stay—from family resorts with pools and kids' clubs to romantic villas with sweeping sea views. The bonus: shoulder-season pricing makes luxury more affordable.

Chiang Mai: Cooling off in Nature and Mountains

June is a great time to escape north to Chiang Mai, where the highlands stay cooler, drier, and greener than much of Thailand.

Light treks, coffee farm visits, and waterfalls are all in season. Though advanced routes like Kew Mae Pan close, easier trails such as the Doi Suthep Monk Trail and Ang Ka Trail on the Doi Inthanon National Park remain open.

Chiang Mai is also home to many of Thailand's top ethical elephant sanctuaries. In June, fewer crowds and lower prices, combined with relatively dry weather, make elephant interactions, like feeding and walking with elephants, even more enjoyable.

Bangkok: Thailand in a Nutshell

Many travelers rush through Bangkok, expecting just another busy city. In our experience, the city's contrasts make it unforgettable:

Golden temples sit next to skyscrapers, street food stalls in Chinatown rival Michelin-starred restaurants, and traditional floating markets mix with designer malls. June showers rarely stop exploration, and with fewer crowds, you'll have more room for photos.

Bangkok also serves as a convenient base for day trips to Ayutthaya or floating markets. For first-timers, it's the easiest way to taste all of Thailand before heading north or south.

What to Wear When Travelling to Thailand?

Go light and cool: quick-dry shirts, shorts, and sandals. A jacket is useful if you're heading into the mountains up north.

If you're visiting temples, pack modest clothing (long pants/skirts and sleeves) for both men and women.

Bring a foldable rain jacket or umbrella, strong sunscreen, a hat, and mosquito repellent.

Is It Worth Visiting Thailand in June?

June is a trade-off: fewer crowds and better deals come with a bit of rain. Hotels and flights can be around 30% cheaper than in the peak season (November–February).

Most cultural sites, like the Grand Palace in Bangkok or Chiang Mai's temples, are easy to visit even during short afternoon showers. On Koh Samui, rainfall usually happens at night, so beach activities such as snorkeling or a half-day boat trip are rarely disrupted.

Outdoor adventures like trekking and jungle exploration are more challenging. Mud, leeches, and slippery paths may limit access to high-difficulty routes or caves in national parks like Khao Sok or Khao Yai.

With a backup plan for wet days, June offers a unique, less crowded, and more authentic Thailand experience at an excellent value.

Average Temperatures and Rainfall in Thai Cities in June

FAQs About Thailand in June

1. Is it a good time to visit Thailand?

Yes, if you enjoy fewer crowds, lower prices, and don't mind a bit of tropical rain. June is also peak fruit season: durian, mangosteen, rambutan, longan, and mangoes.

2. Does it rain all day in June?

No—showers are usually brief and intense, often late in the day.

3. Is June part of the monsoon season?

Yes, it's the start of the rainy season, but storms are rare—typhoons don't usually hit Thailand.

4. Can I visit Phuket in June?

Yes, but expect rough seas and possible cancellations for island trips.

5. Are prices cheaper in June?

Generally, yes. It's the low season in most areas. For example, our 14-Day Thailand Adventure Tour costs just US$3,499 per person in June, about US$200 less than usual.

Suggested Itineraries for June

If you're planning a trip in June, the best approach is to build around the Gulf islands—then add a mix of culture and city life depending on your interests. Here are three sample itineraries that work well this month:

7–10 Days · Island Focus

• Bangkok (2 nights): Food, temples, and a splash of nightlife.
• Koh Samui (5–7 nights): Relax on calm beaches, take day trips to Koh Phangan or Ang Thong Marine Park, and leave buffer days for both excursions and pure downtime.

Feel free to ask us for a quote based on your interests.

10–12 Days · Culture + Nature

• Bangkok (3 nights): City highlights and markets.
• Kanchanaburi (1–2 nights): Bridge over the River Kwai, Death Railway, and Erawan Falls
• Chiang Mai (3 nights): Temples, cooking classes, elephant sanctuaries, and light trekking.
• Koh Samui (3 nights): Sun and sea to round off the trip.

Check out the sample itinerary and get your personalized one!

Multi-Country Suggestion

• A 19-day Highlights of Thailand, Cambodia, and Vietnam tour gives an easy one-stop way to see the region's classics during the off-season.

Monthly Weather and Travel Information for Thailand

Learn about the weather in Thailand for 12 months and find out the best places to visit each month.