Bangkok Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Bangkok.
Climate overview of Bangkok
The rainy season runs from June to October. At this time of the year you can expect short periods of rainy weather, with heavy downpours that mainly occur in the afternoon. About 90 percent of rain falls during this time of the year. Luckily even during the rainy season you can still expect a lot of sunshine. Most rain falls from August to October.
Bangkok Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Bangkok — and find the best time to visit.
Monthly Temperature in Bangkok
The climate in Bangkok remains fairly constant, offering very warm temperatures throughout the year. Average maximum daytime temperatures range from a very hot 37°C (99°F) in April, the warmest time of the year, to a very warm 33°C (91°F) during cooler months like December.
At night, you can expect temperatures ranging from 28°C (82°F) in April to around 23°C (73°F) during December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Bangkok
Bangkok is known for its substantial rainfall, with annual precipitation reaching 1668 mm (66 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, September it receives heavy rainfall, averaging 333 mm (13 in) of precipitation, recorded across 20 rainy days. In contrast, the driest month December brings less rainfall, with 11 mm (0.4 in) over a single rainy day. For more details, please visit our Bangkok Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Bangkok
Seasonal changes in sunshine hours are quite dramatic in Bangkok. While January receives considerable daily sunshine with up to 9.1 hours, September marks the darkest time of the year, where sunshine is scarce with only 5.2 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Bangkok by Month
The relative humidity is high throughout the year in Bangkok.
The city experiences its highest humidity in September, reaching 79%. In January, the humidity drops to its lowest level at 68%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Bangkok
The average wind speed over the year ranges from 1 m/s (2 knots) to 2 m/s (4 knots). It is lower in January, May, June, July, August, September, October, November and December and higher in February, March and April. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Bangkok
The distinct seasonal patterns make weather planning straightforward and reliable.
Visitors should expect the wet season during May, June, July, August, September and October, when heavy rainfall is characteristic. Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.
Frequently asked questions about the climate in Bangkok
What is the best time to visit Bangkok?
January and December typically offer the most optimal weather in Bangkok. In contrast, February, March, April, May, June, July, August, September, October and November tend to have less optimal conditions. Bangkok has distinct dry (December to February) and wet (May to October) seasons.
What temperatures can I expect in Bangkok?
Daytime highs range from 33°C (91°F) in December to 37°C (99°F) in April. Nighttime lows range from 23°C (73°F) to 28°C (82°F). Temperatures stay relatively stable year-round.
How much rain does Bangkok get?
Annual rainfall is around 1668 mm (66 in). September is the wettest month with 333 mm (13 in), while December is the driest with 11 mm (0.4 in).
How sunny is Bangkok?
Bangkok receives around 2,624 hours of sunshine per year. January is the sunniest month with 273 hours, while September is the cloudiest with just 155 hours. Overall, Bangkok enjoys abundant sunshine.
Bangkok 3-Day Forecast
Bangkok 3-Day Forecast
Bangkok on the map
Bangkok is highlighted — select any city to see its climate.
Popular this month
Where to go in June — average daytime high across popular destinations.
Bangkok
35°C (95°F) Chiang Mai
34°C (93°F) Jomtien Beach33°C (91°F) Hua Hin
33°C (91°F) Koh Samui31°C (88°F) Patong Beach30°C (86°F) Ko Lanta31°C (88°F) Ao Nang Beach31°C (88°F) 
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Discover Kok Kood: a hidden gem in Thailand
Discover the hidden gem of Thailand - Koh Kood! Explore stunning beaches, waterfalls and eco-friendly resorts while enjoying a peaceful atmosphere away from the crowds.
Discover Thailand: An Ultimate Guide for Yogis
Explore Thailand's best for yogis: serene retreats, spiritual growth, and adventure. Dive into yoga, meditation, and nature's tranquility for an unforgettable journey.
Trekking in Northern Thailand
One of the most beautiful attractions in Thailand is trekking along mountain villages north of Chiang Mai. The best time to trek is November until February.
Elephant Haven in Thailand: Kindred Spirit Sanctuary
Explore the Kindred Spirit Elephant Sanctuary in Thailand. Experience hiking, observe elephants in nature, and see the positive impact on the community.