Thailand Weather in April: Overview

Curious about Thailand weather in April? It’s the hottest month of the year, with temperatures soaring and occasional peaks over 45°C in full sun. Wherever you go, staying hydrated and wearing sunblock are musts.

The North and North East sizzle under dry skies, Central Thailand turns steamy, and the South blends warmth with occasional showers. Songkran adds a festive twist, making this a unique time to visit.

Here’s what awaits in Thailand’s key regions:

• North Thailand (e.g., Chiang Mai, Chiang Rai): Hot and dry (27-38°C), with little rain but potential haze from agricultural burning.
• North East Thailand (e.g., Udon Thani, Khon Kaen): Blazing heat (28-39°C), dry conditions, and clear skies.
• Central Thailand (e.g., Bangkok, Ayutthaya): Very hot (29-38°C) with high humidity and minimal rain.
• South Thailand (e.g., Phuket, Krabi, Surat Thani): Warm and humid (28-34°C), with sunny days on the Andaman coast and occasional showers on the Gulf side.

What Happens in Thailand in April

Songkran, the Thai New Year, also known as the Water Festival, usually happens mid April but dates can shift depending on the lunar calendar.

This iconic event sees locals and visitors splashing water to wash away bad luck and welcome a fresh start.

Companies often shut down for a few days, and employees tack on extra holidays, extending the festive break. While tourist areas buzz with activity, the country slows down on administrative and business fronts as New Year celebrations take priority.

Does it Rain in Thailand in April?

Wondering how Thailand weather in April handles rain? It’s still among the driest months, though the South sees hints of the coming wet season with more frequent showers. Most areas bask in sunshine, ideal for Songkran festivities or outdoor fun.

Here’s the rainfall rundown per region:

• North Thailand (Chiang Mai): 3 rainy days, 20 mm rainfall
• North East Thailand (Udon Thani): 2 rainy days, 15 mm rainfall
• Central Thailand (Bangkok): 3 rainy days, 30 mm rainfall
• South Thailand (Phuket): 6 rainy days, 60 mm rainfall
• South Thailand (Surat Thani): 7 rainy days, 70 mm rainfall

Is it Hot in Thailand in April?

How does Thailand weather in April feel temperature-wise? It’s the hottest month of the year, with daytime highs testing your endurance. Nights bring slight relief, but you’ll still feel the heat everywhere.

Check out the typical min and max temps per region:

• North Thailand (Chiang Mai): Min 22°C, Max 38°C
• North East Thailand (Udon Thani): Min 24°C, Max 39°C
• Central Thailand (Bangkok): Min 26°C, Max 38°C
• South Thailand (Phuket, Surat Thani): Min 25°C, Max 34°C

Best Places to Visit in Thailand in April

Looking for the best of Thailand weather in April? The heat can’t dim the country’s festive energy or natural beauty.

Our LUMA experts share their top recommendations to make the most of your April adventure.

Chiang Mai: Top Recommendation for April by Dr. Gerard

Dr. Gerard is the Chief Medical Officer at LUMA, Who Has Been Living in Thailand for Over 30 Years

Why Visit: Chiang Mai’s warm, dry weather pairs perfectly with Songkran’s water-soaked celebrations, offering a more genuine and family-friendly experience compared to Bangkok’s high-energy chaos.
Recommended Activity in Chiang Mai in April, by Dr. Gerard: Stroll the city’s smaller streets to experience more local and authentic celebrations.
Insider Tip from Dr. Gerard: Chiang Mai has great access to water thanks to the moat, but beware of water gun pressure, which can lead to serious eye infections or damage if it hits your eyes at high force. Wear swimming goggles to stay safe!

Surat Thani: Top Recommendation for April by Petch

Petch is the Partner Development Manager at LUMA and a Travel Enthusiast Who Spent More Than 10 Years in the Travel & Hospitality Industry

Why Visit: While Songkran is a must, Surat Thani’s Khao Sok National Park offers a lush, serene escape from the festival chaos, with warm weather and occasional showers enhancing the rainforest’s vibrancy.

Recommended Activities in Surat Thani in April, by Petch:

• Boat Tour on Cheow Lan Lake: Visit limestone cliffs and hidden caves, then swim or kayak in the serene turquoise waters.
• Stay on Floating Bungalows: Relax surrounded by stunning lake views.
• Trekking and Wildlife Spotting: Explore the rainforest, caves, and waterfalls—home to gibbons, wild cats, and elephants—ending with a breathtaking viewpoint.
• Visit Elephant Sanctuary: Interact ethically with elephants in a luxury jungle camp.

Insider Tip from Petch: Fly to Phuket or Krabi, then travel by land to Khao Sok. Extend your stay after Songkran for a quieter, nature-focused retreat—pack lightweight rain gear for occasional showers.