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Thailand Weather in March

March 6 2026| August 17 2026
weather-in-march-thailand.jpg

Planning a trip to Thailand in March? You're catching it right at the hinge point, the cool, dry season is winding down and the hot season is stepping in, which means pleasant mornings and warmer afternoons in the same day. Whether you're after beaches, temples, or a jungle trek, this guide breaks down Thailand's weather in March by region and pairs it with where to actually go this month. Before you travel, it's worth arranging your Thailand travel insurance to cover unexpected medical costs, trip disruptions, and lost baggage.

Weather Conditions in Thailand in March: An Overview

March is a transition month, and it plays out differently depending on where you are. The North and Northeast stay warm and dry, good for anyone wanting to be outdoors. Central Thailand starts to heat up in earnest. The South mixes sunshine with the odd shower, though the Andaman coast holds onto its best beach weather of the year. Air quality can dip in the North too, since seasonal agricultural burning tends to pick up this time of year.


Here's what March generally looks like across Thailand's main regions:

  • North Thailand (Chiang Mai, Chiang Rai): Warm days, 25°C to 34°C, low humidity, minimal rain, though haze from burning can affect air quality
  • Northeast Thailand (Udon Thani, Khon Kaen): Dry and warm, 26°C to 35°C, with clear skies and comfortable evenings
  • Central Thailand (Bangkok, Ayutthaya): Hot, 28°C to 36°C, humidity rising but still mostly dry
  • South Thailand (Phuket, Krabi, Koh Samui): Warm, 27°C to 33°C, sunny on the Andaman side while the Gulf coast sees occasional showers

Does it Rain in Thailand in March?

March is one of Thailand's driest months, which makes it a good pick if you'd rather not plan around the weather. Rainfall stays minimal across most of the country, though the Gulf coast, Koh Samui in particular, can see a handful of brief showers.

Region

Rainy Days

Rainfall

North Thailand (Chiang Mai)

2

10 mm

Northeast Thailand (Udon Thani)

1

5 mm

Central Thailand (Bangkok)

2

20 mm

South Thailand (Phuket)

4

30 mm

South Thailand (Koh Samui)

6

50 mm

Is it Hot in Thailand in March?

Yes, especially in Central and Southern Thailand, while the North stays comfortably warm rather than scorching. Nights are still manageable everywhere, but daytime highs climb fast as the month goes on.

Region

Min Temp

Max Temp

North Thailand (Chiang Mai)

18°C

34°C

Northeast Thailand (Udon Thani)

20°C

35°C

Central Thailand (Bangkok)

25°C

36°C

South Thailand (Phuket, Koh Samui)

24°C

33°C

Best Places to Visit in Thailand in March

Warm, dry weather opens up a lot of options this month. Here's where the LUMA team would point you first.


Krabi: Top Pick for March, by Clara


Clara is LUMA's Travel Business Development Manager and a well-seasoned traveler.


March marks the start of the hot season, but Krabi's beaches and limestone cliffs are still quieter than peak months, which makes for a good mix of relaxation and exploring.


What to do: Take a longtail boat out to the limestone cliffs and nearby islands like Railay Beach or the Phi Phi Islands.


Clara's tip: Pack light, breathable clothing and water shoes for the rocky shoreline, and book your boat tour early since this is peak season on the Andaman coast.


Koh Samui: Second Pick for March, by Clara


The Gulf coast has its own draw in March, with island vibes and fewer crowds than the Andaman side, which makes it a solid choice for anyone chasing beach time.


What to do: Beach hop between Chaweng and Lamai, and try kayaking or paddleboarding while the water's calm.


Koh Kood, Trat: Top Pick for March, by Petch


Petch is LUMA's Partner Development Manager and has spent over 10 years in travel and hospitality.


Koh Kood sits off the beaten path, and March gives you warm weather with barely any rain to work around, ideal for a quieter escape from the bigger cities.


What to do:

  • Beach hop: rent a motorbike or grab a local taxi to Ao Tapao Beach, Bang Bao Beach, or Khlong Chao Beach for scenic rides and good sunsets
  • Get on the water: snorkel around nearby islets or join a night squid fishing trip
  • Eat well: fresh seafood is everywhere, grilled prawns especially. If food is part of your travel plans, our guide to Thailand's most popular foods is worth a read before you go
  • Cool off: swim at Khlong Chao Waterfall, a three-tier waterfall that runs year round, though with less flow in summer

Petch's tip: Plan for 2 to 3 nights since the trip from Bangkok takes 4 to 5 hours by land plus a ferry. Bring mosquito repellent for evenings and comfortable shoes for the waterfall trails.

Weather & Regional Guide for March

Region

What to Expect

Best For

Top Places

Andaman Coast (Phuket, Krabi, Khao Lak, Similan Islands)

Hot and dry (32°C to 34°C), negligible rain, flat seas. Exceptional visibility underwater, prime time for whale sharks and manta rays.

Snorkeling, diving liveaboards, beach holidays, catamarans, island hopping

Similan & Surin Islands, Richelieu Rock, Railay Beach & Phi Phi Islands

Lower Gulf Coast (Koh Samui, Koh Phangan, Koh Tao)

Plenty of sun, low rainfall (~30 mm), warm ocean around 29°C, calm seas.

Island getaways, dive certification courses, snorkeling, resort holidays

Chaweng & Choeng Mon, Ang Thong National Marine Park, Sairee Beach & Koh Nang Yuan

Bangkok & Central Thailand (Bangkok, Ayutthaya, Kanchanaburi)

Hot daytime temps (34°C to 37°C), low rainfall, clear skies. Early morning or late afternoon sightseeing works best.

Temple walks at dawn, malls in the heat of the day, river cruises, evening street food

The Grand Palace & Wat Pho, ICONSIAM & Chatuchak Weekend Market, Ayutthaya Historical Park

Eastern Seaboard (Pattaya, Koh Samet, Koh Chang)

Hot, dry, and reliable: minimal rain, calm gulf waters, clear sun across the islands.

Weekend beach trips, water sports, island resorts, seafood

Sai Kaew Beach & Ao Prao, Lonely Beach & Klong Prao, Sanctuary of Truth

Northern Thailand (Chiang Mai, Chiang Rai, Mae Hong Son, Pai)

Hot and at the peak of burning season: high daytime temps (33°C to 36°C), dry, with noticeable haze across valley regions.

Cultural sites, morning elephant sanctuary visits, indoor museums, higher-altitude escapes

Doi Inthanon National Park, Wat Phra That Doi Suthep, Wat Rong Khun (White Temple)

March gives you a real window for Thailand's beaches and islands before the heat peaks in the months after. Once your plans are set, our Thailand Transport Guide covers the best ways to get around once you land.


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