Cha-am
Thailand
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Cha-am, Thailand

September, the first month of the autumn, in Cha-am, is still a hot month, with average temperature fluctuating between 24°C (75.2°F) and 32°C (89.6°F).

Temperature

In September, the average high-temperature remains equal as in August - a still tropical 32°C (89.6°F). The average low-temperature, in Cha-am, is 24°C (75.2°F).

Rainfall

In September, in Cha-am, the rain falls for 18 days. Throughout September, 165mm (6.5") of precipitation is accumulated. Throughout the year, there are 123 rainfall days, and 1182mm (46.5") of precipitation is accumulated.

Sea temperature

In Cha-am, the average seawater temperature in September is 29°C (84.2°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

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

Sunshine

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

UV index

Months with the highest UV index in Cha-am, Thailand, are February through October, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an ultimate health vulnerability from unsafe exposure to the UV radiation for the average person.
Note: In September, the average maximum UV index of 12 translate into the following recommendations:
Take all required precautions, as unprotected skin and eyes can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in September in Cha-am?

The average high-temperature, in September, in Cha-am, is 32°C (89.6°F), while the average low-temperature is 24°C (75.2°F).

How much does it rain in Cha-am in September?

In September, in Cha-am, the rain falls for 18 days. Throughout September, 165mm (6.5") of precipitation is accumulated.

What is the sea water temperature in September in Cha-am?

In Cha-am, Thailand, in September, the average water temperature is 29°C (84.2°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.

How many hours of daylight does Cha-am have in September?

The average length of the day in September in Cha-am, Thailand, is 12.2h.

What is the month with the least sunshine in Cha-am?

June through September, with an average of 5h of sunshine, are months with the least sunshine in Cha-am.

How long on average sun shines in September in Cha-am?

In Cha-am, Thailand, the average sunshine in September is 5h.

When is the highest UV index in Cha-am?

Months with the highest UV index in Cha-am are February through October, with an average maximum UV index of 12.

How high is the UV index in September in Cha-am?

In Cha-am, Thailand, the average daily maximum UV index in September is 12. A UV Index value of 11, and more, symbolizes an extreme health threat from unsafe exposure to the Sun's UV rays.
Average temperature in September - Cha-am, Thailand
  • Average high temperature in September: 32°C

Warmest months (with the highest average high temperature) are April, May and June (33°C).
Months with the lowest average high temperature are January and December (29°C).

  • Average low temperature in September: 24°C

Months with the highest average low temperature are April, May, June and August (25°C).
The coldest month (with the lowest average low temperature) is January (20°C).

Average rainfall in September - Cha-am, Thailand
  • Average rainfall in September: 165mm

The wettest month (with the highest rainfall) is October (223mm).
The driest month (with the lowest rainfall) is January (12mm).

Average rainfall days in September - Cha-am, Thailand
  • Average rainfall days in September: 18 days

Months with the highest number of rainy days are August and September (18 days).
Months with the lowest number of rainy days are January and December (2 days).

Average sea temperature in September - Cha-am, Thailand
  • Average sea temperature in September: 29°C

Best months for swimming (with the highest average sea temperature) are April, May and June (30°C).
Coldest months (with the lowest average sea temperature) are January, February and December (28°C).

Average daylight in September / Average sunshine in September - Cha-am, 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 and December (Average sunshine: 9h).
Months with least sunshine are June, July, August and September (Average sunshine: 5).

Average UV index in September - Cha-am, Thailand
  • Average UV index in September: 12

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