Thailand - weather & travel conditions in September

Thailand Weather in September

In general, September usually the wettest month of the year in most parts of Thailand whilst temperatures continue to drop slightly in some parts.

  • Central Thailand from Bangkok up further north through Ayutthaya to Lop Buri and Uthai Thani receives largest rainfall of the year with average level of around 240mm over the month. Thunder storm are not unusual as humidity is high and street flooding may happen sometimes. Anyway, Hua Hin is expected to be driest place in this region with much lower rainfall and lots of sunshine available. Average temperature of whole area during this time is staying around 31-32oC.
  • Northern Thailand including Mae Hong Son, Chiang Rai and Chiang Mai, Sukhothai … shares almost the same weather conditions with the Central region except humidity is lower.
  • Northeastern Thailand from Nong Khai, Udon Thani all the way down to Ubon Ratchathani though has a bit lower temperatures (average 30 degree Celsius) but condition is wet with high precipitation (around 280mm). 
  • Eastern Thailand, Pattaya and Koh Samet enjoy moderate temperatures and pretty dry (100mm) whilst further south in Koh Chang it is amongst the wettest time of the year with rainfall round 540mm. 
  • Beach condition on the west coast of Southern Thailand is pretty poor with heavy rains in high frequency whilst the east coast though rainfall is slightly increasing but much better with lots of sunshine and dry days are expected. Temperature in this region is around 30oC.


Mid Autumn Festival

The festival takes place on the full moon closest to the autumn equinox. The Mid-Autumn Festival is held on the 15th day of the eighth month in the Chinese calendar, which is in September or early October in the Gregorian calendar. It is celebrated with Chinese communities across Thailand. Shops will sell special moon cakes to mark the occasion.

How to do and what to expect if travel in Thailand in September?

September is just simply the continuation of conditions in August. Most of Thailand dominated by monsoon rains though more or less. In cities, street flooding is expected sometimes. Trekking and visiting to the remote mountainous areas become difficult as the condition is so wet. Landslide can be another problem in deforested mountainous areas.

A classic style holiday to Thailand during this time is more appropriate than a big ambitious adventure itinerary. Most places in the central Thailand are accessible and enjoyable, the same as in lower north and upper eastern Thailand. Avoid the rains in certain times of the day you will find it enjoyable traveling in Thailand during this time.

An umbrella or light poncho is needed when you travel around if you do not want to get wet because of sudden showers.

This time sees places in the country less touristy so, this is an advantage you can take and good promotion is another thing to think about.

If you want to find sun, sea and sand then Pattaya, Koh Samet and beaches and island on the southeast coast are your best places to visit Thailand in September.

Check our Thailand tours and multi countries Southeast Asia tours (incluse Thailand) to fint best tour for you!

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