Thailand: when to go?
Tropical de mousson climate
Thailand enjoys a tropical climate with three distinct seasons: the cool season (November to February), the hot season (March to May), and the monsoon (June to October). However, each region has its own characteristics. The Gulf of Thailand (Koh Samui) experiences a shifted monsoon from October to December, while the Andaman Sea (Phuket) follows the southwest monsoon from May to October. The best time to visit the entire country is between November and February.
- Best period
- November to March
- Good alternatives
- April to August, October
- Rainy season
- September
Year-round overview
Select a month to plan your trip
Climate in numbers
Monthly temperatures and precipitation
Temperature (°C)
Precipitation (mm)
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Climate zones
Climate varies by region. Discover the unique characteristics of each zone.
Bangkok & Central Plains
UnfavorableThe capital and its region experience a humid tropical climate with a pronounced monsoon from June to October. Intense h...
North (Chiang Mai, Chiang Rai)
UnfavorableMilder climate at higher elevations, with a pleasant cool season from November to February. Agricultural burning in Marc...
Northeast (Isan)
UnfavorableSemi-arid plateau with extreme temperatures: very hot in summer, cool in winter. Less intense monsoon than the rest of t...
Gulf of Thailand (Koh Samui, Koh Phangan)
FavorableMonsoon shifted from October to December. The rest of the year is dry and sunny — ideal from February to September.
Andaman Sea (Phuket, Krabi, Phi Phi)
UnfavorableSouthwest monsoon from May to October with heavy rains. Idyllic dry season from November to April with crystal-clear wat...
Month by month
Find detailed climate information for each month of the year.
Temperature
14° — 32°C
Precipitation
17 mm
Average temperature
25.4°C
Rating
Ideal
By climate zone
Pleasant temperatures, clear skies
Temperature
16° — 33°C
Precipitation
18 mm
Average temperature
26.8°C
Rating
Ideal
By climate zone
Chinese New Year
Temperature
20° — 36°C
Precipitation
29 mm
Average temperature
28.6°C
Rating
Good
By climate zone
Start of the heat
Temperature
23° — 36°C
Precipitation
75 mm
Average temperature
30°C
Rating
Good
By climate zone
Songkran (Thai New Year, April 13-15)
Temperature
23° — 34°C
Precipitation
194 mm
Average temperature
29.2°C
Rating
Fair
By climate zone
First tropical storms
Temperature
23° — 33°C
Precipitation
156 mm
Average temperature
28.8°C
Rating
Average
By climate zone
Green season, low prices
Temperature
23° — 33°C
Precipitation
168 mm
Average temperature
28.6°C
Rating
Average
By climate zone
Intermittent rainfall
Temperature
22° — 33°C
Precipitation
206 mm
Average temperature
28.4°C
Rating
Average
By climate zone
Wettest month
Temperature
22° — 32°C
Precipitation
256 mm
Average temperature
27.8°C
Rating
Average
By climate zone
Risk of flooding, continuous rainfall
Temperature
21° — 32°C
Precipitation
208 mm
Average temperature
27.6°C
Rating
Average
By climate zone
Loy Krathong (Festival of Lights)
Temperature
18° — 32°C
Precipitation
118 mm
Average temperature
26.4°C
Rating
Fair
By climate zone
Return of sunny weather
Temperature
15° — 32°C
Precipitation
39 mm
Average temperature
25.2°C
Rating
Good
By climate zone
Christmas, New Year's Eve — perfect weather
Frequently asked questions
Everything about the climate and the best time to visit Thailand
The best months to visit Thailand are November, December, January, February, March. This period offers favourable weather and ideal conditions for exploring the country at its best.
Yes, the tropical climate of Thailand remains warm and humid year-round (average temperature 28.0°C). Seasonal variations mainly concern rainfall rather than temperatures.
The rainy season in Thailand mainly affects September. Showers are generally short and intense, often occurring late in the day, followed by beautiful sunny spells.
Absolutely. Traveling in Thailand during the rainy season even has its advantages: lush landscapes, fewer tourists, more favorable rates. Our local agency adapts itineraries based on actual weather conditions.
Underwater visibility in Thailand is optimal during the dry season, between November, December, January, February, March. Water temperature remains pleasant year-round (around 28-30°C). Our agency guides you to the best spots according to the season.
If your travel dates don't match the ideal season in Thailand, 4 other destinations in the Nomadays network enjoy favourable weather. Each local agency welcomes you with the same quality of service and the same on-the-ground expertise. Discover our suggestions below.
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