Climate averages 1991–2020
Nakhon Si Thammarat weather
by month.
See how the year changes. May has the highest average daily maximum; February has the lowest average monthly rainfall.
Long-term climate patterns, not a forecast for a particular trip.
Across the year Nakhon Si Thammarat averages a daytime high of 29.7°C and a nighttime low of 23.7°C, with about 1,884 mm of rain on roughly 245 days. May is the warmest month (average high 31.3°C) and December the coolest (27.6°C). November is the wettest month with 358 mm; February is the driest with 59 mm.
The annual picture
A year in Nakhon Si Thammarat
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Nakhon Si Thammarat climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.9°C22.6°C | 22.6°C | 125 | 16.9 | 11.712 h |
| February | 29.0°C22.8°C | 22.8°C | 59 | 9.9 | 11.912 h |
| March | 30.3°C23.6°C | 23.6°C | 120 | 13.7 | 12.112 h |
| April | 31.2°C24.5°C | 24.5°C | 120 | 16.8 | 12.312 h |
| May | 31.3°C24.7°C | 24.7°C | 123 | 23.2 | 12.513 h |
| June | 31.1°C24.4°C | 24.4°C | 93 | 21.1 | 12.613 h |
| July | 30.8°C24.2°C | 24.2°C | 97 | 21.3 | 12.613 h |
| August | 30.7°C24.0°C | 24.0°C | 117 | 22.6 | 12.412 h |
| September | 30.1°C23.8°C | 23.8°C | 149 | 25.8 | 12.212 h |
| October | 28.8°C23.6°C | 23.6°C | 274 | 28.2 | 11.912 h |
| November | 27.9°C23.5°C | 23.5°C | 358 | 25.7 | 11.712 h |
| December | 27.6°C23.0°C | 23.0°C | 250 | 20.0 | 11.612 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
Nearby cities
- Surat ThaniThailand · 105 kmHigh 30.8°C · Low 23.9°C · 1,562 mm rain a year
- Ban MaiThailand · 151 kmHigh 29.4°C · Low 25.5°C · 1,876 mm rain a year
- Hat YaiThailand · 168 kmHigh 30.2°C · Low 24.2°C · 1,934 mm rain a year
- PhuketThailand · 183 kmHigh 28.5°C · Low 26.0°C · 2,202 mm rain a year
- YalaThailand · 256 kmHigh 31.0°C · Low 23.0°C · 1,787 mm rain a year
- Alor SetarMalaysia · 261 kmHigh 30.5°C · Low 24.3°C · 2,229 mm rain a year
- PendangMalaysia · 277 kmHigh 30.5°C · Low 23.8°C · 2,306 mm rain a year
- Sungai PetaniMalaysia · 315 kmHigh 30.0°C · Low 24.1°C · 2,237 mm rain a year
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC+7, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 8.40°, 100.00° (5 km from the city centre), adjusted down by 0.4°C for the difference between the city's elevation (8 m) and the cell's (-50 m). Rain comes from the 0.25° cell at 8.50°, 100.00°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.