Weather in Surat Thani in January 2026
Average weather
Average temperature in Surat Thani in January
Going from a maximum of +34°C during the day to a minimum of +19°C during the night, the temperature in January averages around +30°C.
The average maximum temperature goes down 20% by the end of the month, compared with the beginning of the month, from +29°C to +26°C.
Is Surat Thani warm or cold in January?
Surat Thani is typically warm in January.
Maximum temperatures go up compared to the previous month from +29°C to +30°C. The minimum temperature also goes down from +24°C to +23°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
January is one of the coolest months in Surat Thani, here is the comparison with other months:
Climate in Surat Thani in January
| December | January | February | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +29°C | +30°C | +31°C | ||||
| Min. temperature | ||||||
| +19°C | +18°C | +16°C | ||||
| Max. temperature | ||||||
| +34°C | +36°C | +37°C | ||||
| Rainfall | ||||||
| 139 mm | 54 mm | 31 mm | ||||
| Wind | ||||||
| 3 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 82% | 80% | 78% | ||||
| Air pressure | ||||||
| 1011 HPa | 1011 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 1 | 3 | 5 | ||||
| Cloudy days | ||||||
| 7 | 11 | 11 | ||||
| Rainy days | ||||||
| 23 | 18 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
January weather is still as ok as in December. It’s getting warmer as January arrives. The average maximum temperature goes up from +29°C to +30°C during the day. As January arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 139 mm to 54 mm. It feels drier, as humidity decreases from 82% to 80%. Winds are calmer in comparison to December, going down from 3 m/s to 2 m/s on average. The good news is there are likely to be more sunny days in January, from 1 to 3.
But maybe it is worth considering traveling in February as the weather gets better.
Wind
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Surat Thani is gradually decreasing during January, going from 4 m/s to 3 m/s over the course of the month.
Rain
How was the weather last January in Surat Thani?
Climate Change over Years
The climate in Surat Thani in January has not changed much over the last 43 years.
The average temperature was the lowest in 1999 (+30°C) and the highest in 2024 (+33°C). The driest year was 1990 with only 989 mm of rainfall, and the wettest year was 2023 with 2739 mm.
FAQ
Is January a good time to visit Surat Thani?
Can you sunbathe in Surat Thani in January?
Is Surat Thani rainy in January?
Is it sunny in Surat Thani in January?
Other cities in Thailand
Monthly weather in Surat Thani
Source of the data
For this page, we’ve looked at the typical weather in Surat Thani, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
