Nakhon Si Thammarat, Thailand Climate
The warmest month is May, with an average high of 34°C; the coldest is February, with an average low of 22°C.
Temperature through the year
The normal daily high and low and the record for every date at Nakhon Si Thammarat, since 1951. The line marks today.
- Normal low
- Normal high
- Record high
- Record low
Normals for Oct 2
- Normal high
- 33°C
- Normal low
- 23°C
- Record high
- 35°Cin 2015
- Record low
- 21°Cin 1954
- Chance of a wet day
- 91%
- Daylight
- 12 h 03 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Record high | Record low | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | 31°C | 22°C | 35°C (1989) | 17°C (1976) | 12.4 | |
| February | 32°C | 22°C | 36°C (1998) | 16°C (2014) | 5.7 | |
| March | 33°C | 23°C | 40°C (1996) | 18°C (2014) | 9.3 | |
| April | 34°C | 24°C | 39°C (1998) | 19°C (1963) | 15.0 | |
| May | 34°C | 24°C | 40°C (2024) | 20°C (1963) | 24.8 | |
| June | 34°C | 24°C | 38°C (1990) | 20°C (1991) | 24.0 | |
| July | 34°C | 24°C | 39°C (1990) | 19°C (1965) | 24.8 | |
| August | 34°C | 24°C | 39°C (1954) | 20°C (1972) | 24.8 | |
| September | 33°C | 23°C | 38°C (1990) | 19°C (1959) | 194 mm | 27.0 |
| October | 32°C | 23°C | 37°C (2024) | 20°C (1968) | 319 mm | 27.9 |
| November | 30°C | 23°C | 35°C (1987) | 18°C (1956) | 686 mm | 27.0 |
| December | 30°C | 23°C | 35°C (2024) | 17°C (1955) | 21.7 | |
| Year | 33°C | 23°C | 244 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Nakhon Si Thammarat.
The muggiest month is November, when 101 percent of days are muggy or worse, with a mean dew point of 18°C or more.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | 22°C | 84% | 0% | 0% | 0% | 11% | 86% | 3% |
| February | 22°C | 83% | 0% | 0% | 0% | 7% | 92% | 1% |
| March | 23°C | 82% | 0% | 0% | 0% | 2% | 85% | 12% |
| April | 24°C | 81% | 0% | 0% | 0% | 0% | 53% | 47% |
| May | 24°C | 82% | 0% | 0% | 0% | 0% | 24% | 76% |
| June | 24°C | 84% | 0% | 0% | 0% | 0% | 36% | 64% |
| July | 24°C | 84% | 0% | 0% | 0% | 0% | 60% | 40% |
| August | 24°C | 84% | 0% | 0% | 0% | 0% | 70% | 30% |
| September | 24°C | 84% | 0% | 0% | 0% | 0% | 79% | 21% |
| October | 24°C | 85% | 0% | 0% | 0% | 0% | 71% | 29% |
| November | 24°C | 86% | 0% | 0% | 0% | 1% | 61% | 39% |
| December | 23°C | 86% | 0% | 0% | 0% | 7% | 77% | 17% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is March, with the sky 50 percent covered on average; the cloudiest is October, at 85 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is December, averaging 13.7 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 9, with 12 h 37 min of daylight; the shortest is Dec 10, with 11 h 38 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Nakhon Si Thammarat in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
A record is the highest or lowest value on the date in every year the station has reported, back to 1951. It rests on one station, so a neighbor a few miles away can hold different ones.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Nearby
Sources
Records: NOAA GHCN-Daily, station TH000048552, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.