Pattaya
Thailand
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Pattaya, Thailand

The towering wooden building of the Sanctuary of Truth Temple in Pattaya, Thailand, in the middle of a lovely natural park garden
The towering wooden building of the Sanctuary of Truth Temple in Pattaya, Thailand, in the middle of a lovely natural park garden
September sees the resurgence of the southwest monsoon in Pattaya with 203.2mm (8") of rainfall. The wet periods are long, the skies are cloudy, and the rainfall is heavy. The daily sunshine is 3.6 hours during the darkest period of the year, with 17 rainy days during the month.
September average temperatures are between 25°C (77°F) and 31.1°C (88°F), and even the sea temperature is 28.9°C (84°F). The stormy weather and heavy rains often cause flooding in the low-lying areas of the city.
Check the weather forecast before embarking on a Pattaya holiday in September!

What is the temperature in September in Pattaya?

The average high-temperature, in September, is 31°C (87.8°F), while the average low-temperature is 25.2°C (77.4°F). In September, the average heat index (a.k.a. 'real feel', 'feels like'), that takes the relative humidity and factores it into the air temperature reading, is evaluated at 41.2°C (106.2°F).

What is the average humidity in September in Pattaya?

In September, the average relative humidity in Pattaya is 81%.

How many days does it rain in September in Pattaya?

In Pattaya, Thailand, in September, during 17 rainfall days, 204.7mm (8.1") of precipitation is typically accumulated.

What is the sea water temperature in September in Pattaya?

In Pattaya, the average seawater temperature in September is 29.1°C (84.4°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in September in Pattaya?

In Pattaya, the average length of the day in September is 12.2h.

What is the month with the least sunshine in Pattaya?

Months with the least sunshine are June through September, with an average of 5h of sunshine.

How many hours of sunshine does Pattaya have in September?

In Pattaya, Thailand, the average sunshine in September is 5h.

When is the highest UV index in Pattaya?

Months with the highest UV index are February through September, with an average maximum UV index of 12.

What is the UV index intensity in September in Pattaya?

The average daily maximum UV index in September in Pattaya, Thailand, is 12. A UV Index value of 11, and more, symbolizes an extreme health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in September - Pattaya, Thailand
  • Average high temperature in September: 31°C

The warmest month (with the highest average high temperature) is April (32.9°C).
The month with the lowest average high temperature is December (30°C).

  • Average low temperature in September: 25.2°C

The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is December (22.5°C).

Average humidity in September - Pattaya, Thailand
  • Average humidity in September: 81%

The month with the highest relative humidity is October (83%).
The month with the lowest relative humidity is December (70%).

Average rainfall in September - Pattaya, Thailand
  • Average rainfall in September: 204.7mm

The wettest month (with the highest rainfall) is October (216.1mm).
The driest month (with the lowest rainfall) is December (8.3mm).

Average rainfall days in September - Pattaya, Thailand
  • Average rainfall days in September: 17 days

The month with the highest number of rainy days is October (18 days).
Months with the lowest number of rainy days are January and December (1 days).

Average sea temperature in September - Pattaya, Thailand
  • Average sea temperature in September: 29.1°C

The best month for swimming (with the highest average sea temperature) is May (30°C).
The coldest month (with the lowest average sea temperature) is January (27.2°C).

Average daylight in September / Average sunshine in September - Pattaya, Thailand
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 12.9h).
The month with shortest days is December (Average daylight: 11.4h).

  • Average sunshine in September: 5h

Months with most sunshine are January, February, March, April and December (Average sunshine: 8h).
Months with least sunshine are June, July, August and September (Average sunshine: 5).

Average UV index in September - Pattaya, Thailand
  • Average UV index in September: 12

Months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).