Mornings sit near the overnight low around 27°C with clear, cooler light — best for outdoor photos before crowds build.
Thailand Weather in May
Everything you need to know about Thailand weather in May
Updated September 10, 2026
Thailand · Thailand
Thailand Weather in May
May in Thailand is hot, humid and energetically busy. Expect daytime highs around 34°C (93°F), mild nights around 27°C, long sunny stretches, and a calmer pace than peak season Check the full climate tables below for monthly averages and packing cues.
- Avg high / low
- 34°C / 27°C
- 93F / 81F
- Precipitation
- 80mm
- 10 wet days
- Daylight
- 14.5 hrs
- mid-range daylight
Thailand average temperatures through the year
MayRest of the year
31°
32°
33°
34°
34°
33°
32°
32°
32°
31°
30°
31°
JAN
2 wet
FEB
2 wet
MAR
4 wet
APR
6 wet
MAY
10 wet
JUN
14 wet
JUL
15 wet
AUG
14 wet
SEP
12 wet
OCT
8 wet
NOV
5 wet
DEC
3 wet
Daytime highs in Celsius with wet days per month for Thailand. May sits at 34°C with 10 wet days.
The short answer
May falls in Thailand's spring. Daytime highs average 34°C (93°F) with nights near 27°C (81°F). Precipitation totals about 80mm across roughly 10 wet days. Settling snow is uncommon. Visiting works with flexible outdoor plans and a packing buffer Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
May climate in Thailand
Monthly averages for Thailand, Thailand.
- Day high
- 34°C
- 93°F
- Night low
- 27°C
- 81°F
- Precipitation
- 80mm
- 3.1 in
- Wet days
- 10
- rain or drizzle
- Sunrise
- 4:45am
- mid-May
- Sunset
- 7:15pm
- mid-range daylight
- Daylight
- 14.5 hrs
- 7 hrs sunshine
Averages based on long-run monthly climate normals. Last updated September 10, 2026.
Real weeks swing around the 31°C mean. Early May often sits near 33°C while the final week lands closer to 35°C. Pack a spare layer for that 1° drift rather than dressing only for the monthly average Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Rain and drizzle usually arrive in pulses across the 10 wet days. Dry stretches between systems feel clearer and colder overnight. Use those gaps for outdoor sightseeing and keep indoor backups for the wetter clusters Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
What is the average temperature in Thailand in May?
The average temperature in Thailand in May is around 31°C (88°F), combining daytime highs of 34°C (93°F) with night lows of 27°C (81°F). The month warms steadily: the first days average highs near 33°C, while the final week typically tops out around 35°C with nights of 28°C.
Average daily high and low through May. The month warms by roughly 1 degrees start to finish.
How much does it rain in Thailand in May?
Thailand gets around 80mm (3.1in) of precipitation in May, spread over roughly 10 wet days. Wet spells typically last a day or two and clear to drier stretches in between Check the full climate tables below for monthly averages and packing cues.
16
16
32
48
80
112
120
112
96
64
40
24
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Average precipitation by month in millimetres. May's 80mm sits near the annual rhythm.
Average precipitation by hour of day in Thailand
May precipitation in Thailand falls fairly evenly around the clock, with a mild overnight and early-morning peak. There is no predictable afternoon-downpour pattern — check the day's forecast rather than timing outings by the clock Check the full climate tables below for monthly averages and packing cues.
12am6am12pm6pm12am
Relative share of May precipitation by hour of day. The distribution is fairly flat, with a mild overnight peak.
When is sunrise and sunset in Thailand in May?
May daylight in Thailand averages about 14.5 hours, mid-range daylight. Sunrise drifts from 4:45am to 4:35am across the month, while sunset holds near 7:15pm before edging toward 7:23pm. Plan outdoor sightseeing in the brighter midday window Check the full climate tables below for monthly averages and packing cues.
Sunrise and sunset through May. The shaded band is daylight Check the full climate tables below for monthly averages and packing cues.
How humid is Thailand in May?
Relative humidity in Thailand in May averages around 78 percent. At 34°C that reads damper than the thermometer suggests. Temperature and wind still drive packing more than humidity alone Check the full climate tables below for monthly averages and packing cues.
72
70
72
75
78
82
82
80
78
75
73
72
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Average relative humidity by month. May sits near 78%.
What is the weather like in Thailand the rest of the year?
Thailand moves from cooler months near 30°C highs through a warmer peak near 34°C. The best-weather stretch usually aligns with January and February. May sits in the spring arc with 34°C highs Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Average high (coral) and low (navy) by month. The shaded band is the typical daily range; MAY is marked.
Is May a good time to visit Thailand?
Depends — weather works with flexible plans. Here is the honest trade-off.
OverallSolid with flexible plans
WeatherHot and humid
CrowdsMedium
PricesMid
Budget (per night)$140 to $220
Book ahead3 to 5 weeks
May in Thailand is defined by pre-monsoon humidity and 34°C days. Stays often land in the $140–$220 range with mid season demand. The smartest move is to book about 3–5 weeks ahead and keep outdoor blocks in the brighter midday window Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Pros
- 34°C highs suit humid days in Thailand
- 7h average sunshine for daytime plans
- Medium crowds shape the May pace
- Mid season rates for stays and flights
Cons
- 10 wet days can pause outdoor sightseeing
- Humidity at 78% can feel heavier than the air temp
- Some attractions keep shorter winter hours
- Daylight near 14.5 hrs shortens evening walks
Travelling to Thailand in May?
Book lodgings about 3–5 weeks ahead, then visit the busiest central sights right at opening on a weekday to skip the mid-afternoon crush first-timers always hit Check the full climate tables below for monthly averages and packing cues. Compare months on our Best Time to Visit Thailand guide.
app.holicay.com/planner
.png)
Planeje sua viagem para {city}
Crie um roteiro dia a dia, compare opções e organize tudo em um só lugar.
What May actually feels like
May is Thailand's spring in lived terms: pre-monsoon humidity. Most days feel cold, dry and often clear, with damper grey stretches arriving in bursts rather than settling in for the whole month Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
The underestimated variable is clustered wet days. It truncates outdoor evenings and pushes dinner earlier. Build one indoor spare block every day Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Early May often starts near 33°C while the final week trends toward 35°C. That 1° drift is enough to change coat weight mid-trip. Recheck the forecast before packing day seven Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Afternoons reach 34–35°C before an early sunset near the 14.5-hour daylight limit — plan open-air stops then.
Evenings cool quickly toward 27°C; shift to indoor dining and illuminated streets once the light drops.
May in Thailand, week by week
Crowds and prices move more than the thermometer.
May 1–7
33°C (91°F)- Crowds
- Medium
- Prices
- Mid season
- Best for
- Quieter weekday exploring
May 8–14
34°C (93°F)- Crowds
- Medium
- Prices
- Mid season
- Best for
- Balanced weather window
May 15–21
34°C (93°F)- Crowds
- Medium
- Prices
- Mid season
- Best for
- Steady mid-month pace
May 22–31
35°C (95°F)- Crowds
- Medium
- Prices
- Mid season
- Best for
- Late-month flexible plans
Temperatures are Thailand monthly averages split across each window. Individual years vary by several degrees.
Thailand events in May
The fixtures worth timing your trip around, and how they move the crowds.
May through October on the Andaman coast
MAY–OCT
Andaman southwest monsoon
Rough seas disrupt Phuket boats and beach days.
Timing note
Exact dates shift each year. Check dates for your travel year, or let Holi-AI sequence them into your plan automatically.
What to pack and wear for Thailand in May
Light fabric, serious sun care
Pack for Thailand in May around the 34°C / 27°C swing. The governing rule is ventilate and block UV. The one item worth buying before you fly is a compact rain shell Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Essential
- Breathable shirts
- Sun hat
- SPF 50+ sunscreen
- Refillable bottle
Smart additions
- Packable rain shell
- Quick-dry trousers
- Zip pouch for maps
- Thin gloves
Leave behind
- Thick parkas
- Wool sweaters
- Snow boots
Top places to visit in Thailand in May
Outdoor icons with shade breaks
City centre · Free
Thailand landmark walk
Go early on weekdays for quieter photos and softer light.
Add to your planWaterfront · Free
Harbour or river promenade
Golden hour is the calmest window Check the full climate tables below for monthly averages and packing cues.
Add to your planMuseum quarter · Paid
Flagship museum morning
Weekday openings beat weekend queues and wet-day backups.
Add to your planOld town · Free
Historic streets loop
Late morning light helps cold stone feel less harsh.
Add to your planPark · Free
Central green escape
Shade and benches make longer walks realistic Check the full climate tables below for monthly averages and packing cues.
Add to your planCovered market · Free
Indoor food hall backup
Ideal when wet days interrupt outdoor plans Check the full climate tables below for monthly averages and packing cues.
Add to your plan
Top places to stay in May
Base near the sights that matter in May
Best overall
Central core
Walkable to main sights with easier 14.5-hour daylight logistics Check the full climate tables below for monthly averages and packing cues.
Best value
One transit stop out
Lower rates than the core while staying close for medium evenings.
Local feel
Neighbourhood streets
Quieter nights and easier restaurant bookings than the busiest tourist blocks.
Top restaurants to visit in May
Breezy rooms and light seasonal plates
Downtown · Classic
Thailand lunch counter
Hearty midday stop when outdoor plans run short on daylight.
Add to your planOld town · Cosy
Neighbourhood bistro
Low light and early dinners match short sunset windows Check the full climate tables below for monthly averages and packing cues.
Add to your planMarket · Casual
Covered market stalls
Fast warm food without a reservation on wet afternoons Check the full climate tables below for monthly averages and packing cues.
Add to your planRiverside · Scenic
Waterfront cafe
Daylight seating works best before the evening chill Check the full climate tables below for monthly averages and packing cues.
Add to your planArts district · Modern
Gallery-side kitchen
Pairs well with museum days when weather turns Check the full climate tables below for monthly averages and packing cues.
Add to your planResidential · Local
Corner noodle or soup spot
Simple, hot bowls that suit cold or humid evenings Check the full climate tables below for monthly averages and packing cues.
Add to your plan
Importe de qualquer lugar.
Planeje em segundos.
Viu algo no TikTok? Salvou um reel? Tem anotações cheias de ideias? Importe direto das redes, do Google Maps ou das suas notas — e transforme tudo em um roteiro completo na hora.
Salvos do TikTok
Favoritos do Instagram
Listas do Google Maps
Notas e documentos
Thailand weather by month
How May compares. Every month links to its full weather guide.
| Month | Avg high | Wet days | Crowds | Cost | Overall | Best for |
|---|---|---|---|---|---|---|
| January | 31°C (88°F) | 2 | High | High | Great | Dry season, ideal weather |
| February | 32°C (90°F) | 2 | High | Peak | Great | Peak dry season |
| March | 33°C (91°F) | 4 | High | Peak | Great | Hot but dry |
| April | 34°C (93°F) | 6 | High | High | Okay | Hottest month |
| May | 34°C (93°F) | 10 | Medium | Mid | Okay | Humid — this guide |
| June | 33°C (91°F) | 14 | Low | Budget | Avoid | Monsoon rains |
| July | 32°C (90°F) | 15 | Low | Budget | Avoid | Heavy rainfall |
| August | 32°C (90°F) | 14 | Low | Budget | Avoid | Continued monsoon |
| September | 32°C (90°F) | 12 | Medium | Mid | Okay | Rains easing |
| October | 31°C (88°F) | 8 | High | High | Great | Transition to dry season |
| November | 30°C (86°F) | 5 | High | High | Great | Dry season begins |
| December | 31°C (88°F) | 3 | High | High | Great | Dry and festive |
Temperatures shown as Thailand monthly averages.
May vs April: May averages 31°C versus 31°C in April — a 0°C warm-up. Crowds shift from High to Medium while pricing moves into mid season. Pick May if you want pre-monsoon humidity Check the full climate tables below for monthly averages and packing cues.
May vs June: June trends to 30°C, 1°C cooler than May. Expect low crowds and budget season rates. Pick June if you prefer monsoon rains Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Want May sun instead?
Need more sun than Thailand offers in May?
- 34°C
Bangkok in May
A change of scene with comparable May weather. Thailand vs Bangkok →
- 34°C
Phuket in May
A change of scene with comparable May weather. Thailand vs Phuket →
Sua viagem inteira,
no bolso.
Cada dia, cada hospedagem e cada traslado ficam no app. Abra seu canvas onde estiver, acompanhe o dia a dia e nunca perca o fio da sua viagem.
Ver no mapa
Roteiro dia a dia
Transporte e hospedagens
Planejamento com IA
Thailand in May FAQ
Everything you need to know about Thailand weather in May
Daytime highs average 34°C (93°F) and nights fall near 27°C (81°F). The monthly mean sits around 31°C. Expect a 1° swing from early to late May Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Como avaliamos a melhor época
Combinamos dados climáticos, níveis de movimento, faixas de preço e calendário de eventos para indicar os melhores meses para visitar {city}.
Atualizado em September 10, 2026