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Thailand

Visa, flight and trade news on Thailand for Indian travellers and the Indian travel trade.

When to go to Thailand

Where to go by month

Best time to visit Thailand from India: November to February for Bangkok & Central and North; December to March for Andaman coast. Avoid if you can: Bangkok & Central: September; Andaman coast: May to October; North: August to September.

Thailand: best, okay and avoid months by region
RegionJanFebMarAprMayJunJulAugSepOctNovDec
India peakXmas–NYSchool holsSchool holsDiwali 8 NovXmas–NY
Bangkok & Central Best Best Okay Okay Okay Okay Okay Okay Avoid Okay Best Best
Andaman coast (Phuket, Krabi) Best Best Best Okay Avoid Avoid Avoid Avoid Avoid Avoid Okay Best
North (Chiang Mai) Best Best Okay Okay Okay Okay Okay Avoid Avoid Okay Best Best

Best most reliable weather · Okay visitable, with trade-offs · Avoid monsoon, storms, heat or disruption (often cheaper). The split between best and okay is editorial guidance based on the met-service and tourism-board sources below.

Region by region

  • Bangkok & CentralBest: Nov-Feb. Okay: Mar-Aug, Oct. Avoid: Sep (wettest month in our 2016-2025 data, 254 mm).TMD: cool season mid-Oct to mid-Feb under the dry NE monsoon; hot season mid-Feb to mid-May (Apr avg high 35 C in our data); rainy season mid-May to mid-Oct.
  • Andaman coast (Phuket, Krabi)Best: Dec-Mar. Okay: Apr, Nov. Avoid: May-Oct (SW monsoon; 248-340 mm/month in our data).TMD: SW monsoon (mid-May to mid-Oct) is rainier on coasts and mountain ranges; Phuket driest Jan-Mar in our data.
  • North (Chiang Mai)Best: Nov-Feb. Okay: Mar-Jul, Oct. Avoid: Aug-Sep (wettest, 232-244 mm).TMD: north and northeast turn 'quite cool' in the NE monsoon; Apr is hottest (avg high 36 C in our data).

Gulf islands (Koh Samui) differ: TMD says the south, especially the east side, stays rainy into December. Songkran (13-15 Apr) is Thai New Year [check TAT for events].

Peak periods

  • Diwali 8 NovDiwali (8 Nov 2026)Short-haul international fares spike; Dubai and Singapore routes 'commanding premium fares' and outbound sales to Dubai, Bali, Bangkok, Singapore, Vietnam up 30-40% vs Diwali 2024 (Moneycontrol, Oct 2025, quoting OTAs)
  • School holsIndian school holidays (mid-May to June)Family travel peak from India. Clashes with SW monsoon in Sri Lanka west coast, Maldives, Andaman coast of Thailand, Nepal, Bhutan; and with heat in UAE. Good fit for Bali, east-coast Sri Lanka, Singapore, Vietnam's central coast.
  • Xmas–NYChristmas–New Year(Editorial estimate) Global peak; overlaps Dubai Shopping Festival and Japan's New Year closures.
  • ThailandDiwali and Christmas-New Year fall in Thailand's best season, so expect peak pricing (see india_peak_periods).

Before you book

Monthly temperatures and rain

BangkokAverage highs 31–35 °C, lows 22–27 °C; rain 17–254 mm a month.
Bangkok monthly climate chart. Average highs 31–35 °C, lows 22–27 °C; rain 17–254 mm a month.15°20°25°30°35°40°0100200300JFMAMJJASONDmm

High °CLow °CRain mm

Monthly figures for Bangkok
Bangkok monthly averages
MonthHigh °CLow °CRain mm
January30.921.821
February32.123.223
March33.725.638
April34.726.870
May33.626.8143
June32.526.2109
July31.625.8156
August31.925.8139
September31.225.3254
October30.824.5205
November30.823.469
December30.521.917

Temperatures: Open-Meteo ERA5 reanalysis, 2016–2025 averages. Rain: Open-Meteo ERA5 reanalysis, 2016–2025 averages.

PhuketAverage highs 28–30 °C, lows 26–27 °C; rain 32–340 mm a month.
Phuket monthly climate chart. Average highs 28–30 °C, lows 26–27 °C; rain 32–340 mm a month.20°25°30°35°0200400JFMAMJJASONDmm

High °CLow °CRain mm

Monthly figures for Phuket
Phuket monthly averages
MonthHigh °CLow °CRain mm
January28.825.875
February29.426.332
March29.92738
April29.927.1124
May29.527280
June29.126.9248
July28.926.9252
August28.626.6268
September28.326.2340
October28.225.8322
November28.225.8235
December28.425.898

Temperatures: Open-Meteo ERA5 reanalysis, 2016–2025 averages. Rain: Open-Meteo ERA5 reanalysis, 2016–2025 averages.

Chiang MaiAverage highs 28–36 °C, lows 17–25 °C; rain 4–244 mm a month.
Chiang Mai monthly climate chart. Average highs 28–36 °C, lows 17–25 °C; rain 4–244 mm a month.10°20°30°40°0100200300JFMAMJJASONDmm

High °CLow °CRain mm

Monthly figures for Chiang Mai
Chiang Mai monthly averages
MonthHigh °CLow °CRain mm
January27.916.58
February31.118.54
March34.822.26
April35.924.428
May34.125.194
June31.224.4118
July30.524.1193
August29.623.7244
September29.823.4232
October29.322.2157
November28.519.533
December27.516.88

Temperatures: Open-Meteo ERA5 reanalysis, 2016–2025 averages. Rain: Open-Meteo ERA5 reanalysis, 2016–2025 averages.

Weather data by Open-Meteo.com, licensed CC BY 4.0. Climate averages are 2016–2025 ERA5 / ERA5-Land reanalysis (Copernicus Climate Change Service, ECMWF), processed by India Outbound Travel News. These are not official WMO normals; where a met service publishes station figures, the charts use them instead, as labelled.

Season sources: The Seasons of Thailand (source: Thai Meteorological Department), Thailand.go.th · Monsoon winds and the climate of Thailand (source: Thai Meteorological Department), Thailand.go.th

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