Surat Thani is rarely comfortable to be outside at midday. It comes closest in early December, and even then it is too hot. It is rarely warm enough for sunbathing.
When to go five ratings · thirty-six ten-day sections · click a cell to read it
Surat Thani never quite rates Good for sun. It comes closest in late December, at 40, mostly because it is often wet. The weakest stretch is from mid April to May, when it drops to 3, mostly because it is too hot. The clearest skies come in March, when the sky is typically 52% covered at midday (partly cloudy).
Being outside is not what Surat Thani is for: the Easy outdoors rating tops out at 4, mostly because it is too hot.
Walking is not what Surat Thani is for: the Active outdoors rating tops out at 0, mostly because it is too warm.
The year, measured
The average temperature in Surat Thani over the whole year is 27°C. April is the hottest month, with highs of about 34°C; February is the coldest, with lows of about 23°C. Surat Thani has no sharply defined rainy season: the chance of rain on a given day runs from 53% in March, the driest month, to 69% in November, the wettest. Winds in Surat Thani are highest in February, averaging 1.5 m/s (5 km/h), and lightest in October, at 0.9 m/s (3 km/h). The prevailing wind is from the NE. The clearest skies in Surat Thani come in March, when the sky is typically 48% covered; September is the cloudiest month, at 68%.
Month by month Surat Thani climate by month: average temperatures year round · click a month to read it
| Month | High | Low | Feels like | Chance of rain | Cloud | Wind | Being outside | Sun | Walking |
|---|---|---|---|---|---|---|---|---|---|
| January | 30°C | 23°C | 34°C | 56% | 57% | 1.3 m/s | 2 | 36 | 0 |
| February | 31°C | 23°C | 35°C | 57% | 50% | 1.5 m/s | 1 | 30 | 0 |
| March | 33°C | 24°C | 37°C | 53% | 48% | 1.4 m/s | 0 | 12 | 0 |
| April | 34°C | 25°C | 38°C | 60% | 54% | 1.1 m/s | 0 | 5 | 0 |
| May | 33°C | 25°C | 38°C | 64% | 62% | 1.0 m/s | 0 | 5 | 0 |
| June | 32°C | 25°C | 36°C | 61% | 63% | 1.2 m/s | 0 | 10 | 0 |
| July | 32°C | 25°C | 36°C | 61% | 66% | 1.2 m/s | 1 | 13 | 0 |
| August | 31°C | 25°C | 36°C | 59% | 65% | 1.3 m/s | 1 | 15 | 0 |
| September | 31°C | 25°C | 36°C | 60% | 68% | 1.1 m/s | 1 | 17 | 0 |
| October | 31°C | 25°C | 36°C | 68% | 67% | 0.9 m/s | 0 | 13 | 0 |
| November | 30°C | 24°C | 35°C | 69% | 67% | 0.9 m/s | 1 | 21 | 0 |
| December | 29°C | 24°C | 33°C | 67% | 63% | 1.3 m/s | 4 | 36 | 0 |
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Surat Thani weather by season
Year round, Surat Thani has days of about 29°C at their warmest in December, its coolest month, and 34°C in April, its warmest; the coolest hours of the day run from 23°C to 25°C through the year, and the average temperature over the year is 27°C around the clock. Rain is most likely around November and least likely around March. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Surat Thani weather in winterDecember to February
Winter in Surat Thani has typical daily highs of about 30°C and lows of about 23°C, with a 60% chance of rain on a given day.
Surat Thani weather in springMarch to May
Spring in Surat Thani has typical daily highs of about 33°C and lows of about 25°C, with a 59% chance of rain on a given day.
Surat Thani weather in summerJune to August
Summer in Surat Thani has typical daily highs of about 32°C and lows of about 25°C, with a 60% chance of rain on a given day.
Surat Thani weather in autumnSeptember to November
Autumn in Surat Thani has typical daily highs of about 31°C and lows of about 24°C, with a 66% chance of rain on a given day.
When is the rainy season in Surat Thani?
Surat Thani has no sharply defined rainy season: the chance of rain on a given day runs from 53% in March, the driest month, to 69% in November, the wettest.
What time of year is Surat Thani windiest?
Winds in Surat Thani are highest in February, averaging 1.5 m/s (5 km/h), and lightest in October, at 0.9 m/s (3 km/h). The prevailing wind is from the NE.
What is the average temperature in Surat Thani year round?
The average temperature in Surat Thani over the whole year is 27°C. April is the hottest month, with highs of about 34°C; February is the coldest, with lows of about 23°C.
Where to go instead in mid February, the weakest time here for being outside
How this is worked out
Every figure is a decade of weather-station observations blended into one typical year, in ten-day sections. The ratings, the chart and the feels-like column are read at midday local solar time. Being outside is the Easy outdoors rating, Sun is Sunbathing and Walking is Active outdoors, each out of 100: Good from 55, Ideal from 80. They describe what a time of year is usually like here, not a forecast. The dotted links open the map at that time of year; set its time of day to midday to see these numbers.