Bangkok in the Hot Season — Travel Guide
By Harry Nara · Last updated
Bangkok in Hot Season offers some of the best conditions of the year, ideal for festival lovers & deal seekers. Expect temperatures of 27–35°C, around 3–12 days of rain, and medium crowds across the city. Daily budgets typically land around ฿600–2,000 for mid-range travellers. Book three to four weeks ahead for the best mid-range rates and the widest hotel choice.
Contents16 sections
- At a Glance
- Weather in Bangkok in Hot Season
- March to May in Bangkok
- What to Do in Bangkok in Hot Season
- Getting Around
- Budget & Costs
- Food & Dining
- Nightlife
- Shopping
- Culture & Etiquette
- Essential Local Phrases
- Packing List
- Backup Plans (Peak Heat Hours)
- Safety & Health
- What's New for the Hot Season 2027
- About This Guide
#At a Glance
Bangkok's hot season runs from March to May, and the name is honest: afternoons are around 35°C, the humidity is high, and the sun is fierce from mid-morning. In return, the city holds its biggest celebration of the year, Songkran, the Thai New Year water festival, on 13 to 15 April 2027, when the streets turn into a city-wide water fight.
March is the gentlest month, dry and hot; April is the hottest and the most festive; May brings the first storms of the monsoon and the royal and Buddhist holidays, with Coronation Day on Tuesday 4 May. Hotels outside Songkran are good value. Sightsee early, rest at midday, and do as Bangkok does: live in the shade, the air-conditioning and the evenings.
#Weather in Bangkok in Hot Season
Bangkok in Hot Season averages 27–35°C (81–95°F) with around 3–12 days of rain, and crowds are medium.
| Month | Daytime high | Overnight low | Rainy days | Sunset |
|---|---|---|---|---|
| March | About 35°C / 95°F | About 26°C / 79°F | About 3 | 6:26pm on the 1st |
| April | About 36°C / 97°F | About 27°C / 81°F | About 5 | 6:31pm at Songkran |
| May | About 35°C / 95°F | About 27°C / 81°F | About 12 | 6:42pm by the 31st |
Figures are Thai Meteorological Department 1991–2020 normals for Bangkok.
What that actually means for your trip:
- April is the hottest month. The average high is about 36°C, and heatwaves can push the city towards 40°C, with a heat index well above that.
- The nights barely cool. Lows around 27°C mean the city never really rests from the heat.
- March is dry; May is not. The rains begin in May, usually as short, heavy afternoon or evening storms.
- The heat is in the middle of the day. Mornings until about 10am and the hours after sunset are the times to be out.
Is the hot season a good time to visit Bangkok? Yes, if you come for Songkran or are happy to plan around the heat. Outside the festival, hotels are cheaper than in the cool season and the big sights are less crowded. If you want comfortable sightseeing, come from November to February instead.
#March to May in Bangkok
March is the dry, hot start of the season. Hotel rates fall from their cool-season peak, the temples are calmer, and the evenings are good for rooftop bars and night markets.
April brings Chakri Memorial Day on Tuesday 6 April, a public holiday, and then Songkran, the Thai New Year, on Tuesday 13 to Thursday 15 April 2027. It is a family festival first: people go home to the provinces, visit temples, and pour scented water over the hands of their elders and over Buddha images. In Bangkok it is also a huge water fight, centred on Silom Road, Khao San Road and the festival zones around the city; anyone outdoors gets wet. See our Songkran guide.
May opens with Labour Day on Saturday 1 May and Coronation Day on Tuesday 4 May 2027.
The Royal Ploughing Ceremony at Sanam Luang marks the start of the rice season, on a date set by court astrologers, usually in May.
Visakha Bucha, the holiest day of the Buddhist year, is expected in May; the Thai Cabinet confirms the date, and alcohol sales are normally banned for the day.
#What to Do in Bangkok in Hot Season
Solo Travellers
See the Grand Palace and Wat Pho when they open, then cross the river by ferry to Wat Arun.
Spend the hot afternoon in Museum Siam or the Jim Thompson House, and the evening in Chinatown for street food.
Couples
Take a longtail boat through the khlongs of Thonburi in the morning, then a sunset cocktail on a rooftop bar above the river. A river dinner cruise is a cool way to see the lit temples.
Families
Spend Songkran in a family-friendly festival zone or a hotel pool party, rather than the crowded Silom and Khao San.
On hot days, SEA LIFE Bangkok and the indoor play centres of the big malls are cool and air-conditioned.
Groups
Join the Songkran water fights on Silom Road or Khao San Road, then the night markets and rooftop bars. Outside the festival, a cooking class in the morning and a muay Thai fight in the evening fill a hot day.
#Getting Around
From Suvarnabhumi, the Airport Rail Link reaches Phaya Thai in about half an hour for no more than THB 45; from Don Mueang, take the SRT Red Line or a metered taxi.
The BTS Skytrain and the MRT are cool, fast and the best way across the city in the heat, and the Chao Phraya Express boats serve the riverside temples.
During Songkran, roads in the festival zones close and taxis and tuk-tuks will not keep passengers dry; the BTS and MRT run normally.
#Budget & Costs
| Travel style | Per day | What it covers |
|---|---|---|
| Budget | THB 1,000–1,600 | Hostel or guesthouse, street food, BTS and MRT |
| Mid-range | THB 3,000–5,500 | 4-star hotel, restaurant meals, one paid sight |
| Luxury | THB 9,000+ | Riverside hotels, fine dining, spa |
Hot-season prices are lower than in the cool season, except over Songkran, when hotels in the festival areas rise.
Costs worth knowing:
| What | Price |
|---|---|
| Grand Palace | THB 500 |
| Wat Pho | THB 300 |
| Airport Rail Link to the city | Up to THB 45 |
| Songkran water fights | Free |
| Mango sticky rice from a stall | A few dozen baht |
- Book Songkran hotels early; prices jump for 13 to 15 April.
- A proposed 450-baht entry fee for foreign visitors was not yet in force at the time of writing; check before you travel.
- Tipping is not expected, but rounding up or leaving small change is appreciated.
#Food & Dining
The hot season is mango season, and khao niao mamuang, mango with sticky rice and coconut cream, is everywhere.
Cooling dishes, khao chae, rice in jasmine-scented iced water eaten in the hot months, and iced Thai tea are the season's treats. Eat the big street-food meal after dark, in Yaowarat or at the night markets, when the stalls are freshest and the heat has eased.
#Nightlife
The evenings are the best time of day: rooftop bars over the river and Sukhumvit, the night markets such as Jodd Fairs, and the bars of Thonglor and Ari. During Songkran the parties run day and night in the festival zones. On Visakha Bucha, alcohol sales are banned across the country.
#Shopping
The big air-conditioned malls, Siam Paragon, ICONSIAM and CentralWorld, are the midday refuges.
Chatuchak Weekend Market is best at opening time, before the heat, and the night markets are the place for clothes and souvenirs in the evenings.
#Culture & Etiquette
- Cover shoulders and knees at the Grand Palace and the temples; a sarong over shorts is cooler than trousers.
- At Songkran, do not throw water at monks, older people who are not playing, or anyone in a vehicle with the windows down.
- Respect the monarchy; it is protected by strict laws, and royal portraits are treated with reverence.
- On Buddhist holy days, alcohol sales stop and some bars close.
- Take your shoes off in temples and homes.
#Essential Local Phrases
| Thai | Pronunciation | Meaning |
|---|---|---|
| สวัสดี | Sawasdee (krap/ka) | Hello |
| ขอบคุณ | Khop khun (krap/ka) | Thank you |
| สุขสันต์วันสงกรานต์ | Suk san wan Songkran | Happy Songkran |
| ร้อนมาก | Ron mak | It's very hot |
| น้ำเย็น | Nam yen | Cold water |
| เท่าไหร่ | Tao rai? | How much? |
| ไม่เผ็ด | Mai phet | Not spicy |
| ไม่เป็นไร | Mai pen rai | Never mind / no problem |
#Packing List
- Light, loose, quick-drying clothes
- A sarong or scarf to cover up for temples
- A hat, sunglasses and high-factor sunscreen
- A waterproof phone pouch for Songkran
- Sandals you can get wet
- A refillable water bottle and electrolyte sachets
- A compact umbrella for May storms
#Backup Plans (Peak Heat Hours)
From late morning to mid-afternoon, retreat to the air-conditioned malls, Museum Siam, the Bangkok Art and Culture Centre or a spa for a Thai massage. Plan the outdoor sights for the early morning and the evening.
If a May storm hits: wait it out in a mall or café; the storms are heavy but usually short, and the streets can flood briefly.
If Songkran is too much: stay in the quieter neighbourhoods away from Silom and Khao San, or spend the festival days at a hotel pool.
#Safety & Health
Bangkok is generally safe. In the hot season, heat is the main risk: drink before you are thirsty, use electrolytes, stay out of the midday sun and watch for dizziness and headaches. Songkran brings a sharp rise in road accidents across Thailand; avoid motorbike taxis and driving during the festival. Watch for the famous scams, such as the tuk-tuk driver who says the Grand Palace is closed.
Emergency: 191 for police, 1669 for an ambulance, 1155 for the tourist police.
#What's New for the Hot Season 2027
- Songkran runs from Tuesday 13 to Thursday 15 April 2027
- Chakri Memorial Day is Tuesday 6 April, and Coronation Day Tuesday 4 May 2027
- Visakha Bucha is expected in May; the Thai Cabinet confirms the date
- Sanam Luang hosted Queen Sirikit's royal cremation in December 2026; check what is open nearby
- The 450-baht tourist entry fee is still a proposal awaiting Cabinet approval
#About This Guide
By Harry Nara (founder of WhenToWander), updated October 2026 for the hot season 2027. Climate figures are Thai Meteorological Department 1991–2020 normals. Dates and prices verified against:
- Tourism Authority of Thailand for Songkran and the Buddhist calendar
- Bank of Thailand holiday calendar for public holidays
- Thai Meteorological Department for climate normals
- Nation Thailand for the proposed entry fee
- Nation Thailand for the royal cremation schedule
For each month in detail, see Bangkok in March, Bangkok in April and Bangkok in May.
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Frequently Asked Questions
How hot does Bangkok get in the hot season?
Average highs are about 35°C in March and May and 36°C in April, the hottest month, with nights around 27°C. Heatwaves can push towards 40°C, and the humidity makes it feel hotter. Sightsee early and late, and rest in the middle of the day.
Is it worth visiting Bangkok during Songkran?
Yes, if you are happy to get soaked. Songkran runs from 13 to 15 April 2027, with water fights on Silom and Khao San Road and temple rituals across the city. Book hotels early, protect your phone, and expect some local businesses to close as people go home.
Are hotels cheaper in Bangkok in the hot season?
Yes, outside Songkran. Hotel rates fall from their cool-season peak in March and May, while the days around 13 to 15 April are among the busiest and most expensive of the year in the festival areas.
How do I cope with the heat in Bangkok?
Go out early and after dark, spend the middle of the day in air-conditioned malls, museums or a spa, travel by BTS, MRT or Grab rather than on foot, and drink water with electrolytes. Watch for dizziness and headaches, the first signs of heat exhaustion.