North
MixedChiang Mai, Chiang Rai, Pai
The hottest time of year, often still hazy early in the month. Chiang Mai hosts the country's liveliest Songkran.
April is the hottest month of the year and the month of Songkran, the Thai New Year water festival. The islands still have fine weather, the cities are sweltering and the whole country takes a holiday mid-month.
April is a month for beaches and for Songkran. Both coasts are still in good shape, with the Andaman side enjoying its last reliable weeks before the monsoon. Bangkok and the north are at their hottest, and the north may still be smoky early in the month. If you are here from 13 to 15 April, expect to get very wet, and happily so.
Chiang Mai, Chiang Rai, Pai
The hottest time of year, often still hazy early in the month. Chiang Mai hosts the country's liveliest Songkran.
Bangkok, Ayutthaya, Hua Hin
Scorching: Bangkok regularly reaches around 35°C with high humidity. Plan sightseeing for early morning and late afternoon.
Phuket, Krabi, Phi Phi, Lanta
Still good: sunny and calm for most of the month, with the first afternoon storms possible towards the end.
Koh Samui, Phangan, Tao
Very good: dry, sunny and calm on Samui, Phangan and Tao, a strong alternative to the busier Andaman side.
Region 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.
Mixed
0 of 6 destinations ideal
Mixed
1 of 5 destinations ideal
Great
3 of 3 destinations ideal
Great
9 of 9 destinations ideal
Great
4 of 5 destinations ideal
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
The beaches are still the best bet in April. These destinations are in their ideal window.
Central & BangkokRoyal elegance, sea breeze and a pavilion in a cave
29°C€35 - 75 / day
East (Koh Chang)Elephant Island: inland waterfalls and untouched jungle
29°C€25 - 50 / day
Gulf of ThailandThe mecca of scuba diving and sea turtles
29°C€28 - 50 / day
Gulf of ThailandTwo faces: legendary parties and zen yoga sanctuaries
29°C€30 - 65 / day
Gulf of ThailandThe island of coconut palms, exceptional spas and Ang Thong marine park
30°C€50 - 120 / day
Andaman SeaAncient jungle, karst peaks and floating bungalows
27°C€40 - 75 / day
Also in their best season: Phuket, Krabi & Railay, Koh Phi Phi, Koh Lanta, Koh Lipe, Koh Kood, Koh Mak, Koh Samet, Khao Lak, Koh Yao Noi, Trang Islands
Outside their ideal window but usually fine to visit: expect some showers, heat or rougher seas.
None this month.
In their rainy season according to our data. Still possible if you are flexible, but plan indoor options and check boat schedules.
Typical conditions
April is hot almost everywhere, with afternoon highs often in the mid-30s °C inland and very humid air. Most days are dry, but the first pre-monsoon thunderstorms can appear late in the month, usually as short, heavy afternoon showers. The sea is warm and generally calm.
Crowds & prices
Shoulder season for foreign tourists, but Songkran is a major domestic holiday: buses, trains, flights and hotels fill up around 13–15 April and roads are busy. Outside Songkran week, prices on the islands are usually lower than in winter.
Tourist season through the year
Taller bar = busier and usually pricier. Based on typical tourist seasons, not live prices.
Festivals
Lunar festivals shift from year to year: check the exact date before you book.

13–15 April (fixed), longer in some cities
Thai New Year and the country's giant water fight, 13–15 April.
Chiang Mai, Bangkok (Silom, Khao San Road), Phuket

Every month, on or around the full moon
The monthly all-night beach party at Haad Rin, Koh Phangan.
Haad Rin beach, Koh Phangan
FAQ
Songkran is officially 13 to 15 April every year. Some cities, especially Chiang Mai, celebrate over more days. Everything else is in our complete Songkran guide.
It is the hottest month, with highs often around 35°C inland. By the sea it is more bearable. Plan early starts, midday breaks and plenty of water.
Yes. Both coasts are mostly sunny and calm. The Andaman side may see the first storms late in the month, while the Gulf islands stay reliably dry.
Keep planning