January weather forecast
Surat Thani, Thailand

Weather in January

January is a tropical winter month in Surat Thani, Thailand, with an average temperature ranging between max 31.1°C (88°F) and min 21.1°C (70°F).

Temperature

In January, the average high-temperature is practically the same as in December - a tropical 31.1°C (88°F). In January, in Surat Thani, Thailand, the average low-temperature is 21.1°C (70°F).

Heat index

In January, the average heat index is appraised at a scorching 42°C (107.6°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like activity, differences in body mass, height, and shape, wind, and metabolic differences affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In January, the average relative humidity is 81%.

Rainfall

In Surat Thani, Thailand, in January, during 6 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, there are 159 rainfall days, and 1622mm (63.86") of precipitation is accumulated.

Sea temperature

The months with the coldest seawater in Surat Thani are January, February and December, with an average sea temperature of 28°C (82.4°F).
Note: 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.

Daylight

In January, the average length of the day is 11h and 40min.
On the first day of January, sunrise is at 06:38 and sunset at 18:14. On the last day of the month, sunrise is at 06:44 and sunset at 18:28 +07.

Sunshine

The average sunshine in January in Surat Thani is 8h.

UV index

In Surat Thani, the average daily maximum UV index in January is 11. A UV Index value of 11, and more, symbolizes an ultimate health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 11 in January transform into the following instructions:
Practice all essential precautions. Protection against sun damage is crucial. 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. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in January in Surat Thani?

In January, in Surat Thani, the average high-temperature is 31.1°C (88°F), and the average low-temperature is 21.1°C (70°F). in January, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 42°C (107.6°F).

What is the average humidity in January in Surat Thani?

In January, the average relative humidity in Surat Thani is 81%.

How much does it rain in Surat Thani in January?

In January, in Surat Thani, Thailand, the rain falls for 6 days. Throughout January, 37mm (1.46") of precipitation is accumulated.

When is the sea coldest in Surat Thani?

January, February and December, with an average sea temperature of 28°C (82.4°F), are months with the coldest seawater in Surat Thani, Thailand.

What is the sea water temperature in January in Surat Thani?

In Surat Thani, in January, the average water temperature is 28°C (82.4°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Surat Thani have in January?

In January, the average day length is 11h and 40min.

What time are sunrise and sunset in January in Surat Thani?

In January, on the first day of the month, sunrise is at 06:38 and sunset at 18:14. On the last day of the month, sunrise is at 06:44 and sunset at 18:28 +07.

How many hours of sunshine does Surat Thani have in January?

In Surat Thani, the average sunshine duration in January is 8h.

How high is the UV index in January in Surat Thani?

In January, the average daily maximum UV index in Surat Thani, Thailand, is 11. A UV Index estimate of 11, and higher, represents an excessive health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average sunshine
Average UV index

Average temperature in January
Surat Thani, Thailand

Average temperature in January - Surat Thani, Thailand
  • Average high temperature in January: 31.1°C

The warmest month (with the highest average high temperature) is April (35°C).
The month with the lowest average high temperature is December (29.9°C).

  • Average low temperature in January: 21.1°C

The month with the highest average low temperature is May (23.8°C).
The coldest months (with the lowest average low temperature) are January and February (21.1°C).

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Average humidity in January
Surat Thani, Thailand

Average humidity in January - Surat Thani, Thailand
  • Average humidity in January: 81%

The months with the highest relative humidity are October and November (87%).
The month with the lowest relative humidity is March (75%).

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Average rainfall in January
Surat Thani, Thailand

Average rainfall in January - Surat Thani, Thailand
  • Average rainfall in January: 36.8mm

The wettest month (with the highest rainfall) is November (329.9mm).
The driest month (with the least rainfall) is February (12.3mm).

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Average rainfall days in January
Surat Thani, Thailand

Average rainfall days in January - Surat Thani, Thailand
  • Average rainfall days in January: 6 days

The month with the highest number of rainy days is October (20 days).
The month with the least rainy days is February (2 days).

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Average sea temperature in January
Surat Thani, Thailand

Average sea temperature in January - Surat Thani, Thailand
  • Average sea temperature in January: 28°C

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

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Average daylight in January /
Average sunshine in January
Surat Thani, Thailand

Average daylight in January / Average sunshine in January - Surat Thani, Thailand
  • Average daylight in January: 11h and 40min

The month with the longest days is June (Average daylight: 12h and 39min).
The month with the shortest days is December (Average daylight: 11h and 36min).

  • Average sunshine in January: 8h

The months with the most sunshine are February and March (Average sunshine: 9h).
The month with the least sunshine is November (Average sunshine: 5h).

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Average UV index in January
Surat Thani, Thailand

Average UV index in January - Surat Thani, Thailand
  • Average UV index in January: 11

The 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 10).

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