Nha Trang weather by month
Nha Trang runs from about 24°C in January to 30°C in May, with December the wettest month at 456 mm.
warmest month
May
30°C
coolest month
January
24°C
wettest month
December
456 mm
worst air month
June
25 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 24°C | 29 mm | 325 h | 13 |
| February | 25°C | 25 mm | 326 h | 12 |
| March | 26°C | 19 mm | 359 h | 16 |
| April | 29°C | 4 mm | 355 h | 20 |
| May | 30°C | 31 mm | 357 h | 19 |
| June | 30°C | 60 mm | 332 h | 25 |
| July | 29°C | 121 mm | 325 h | 18 |
| August | 30°C | 35 mm | 366 h | 16 |
| September | 29°C | 117 mm | 292 h | 11 |
| October | 27°C | 188 mm | 266 h | 9 |
| November | 26°C | 166 mm | 296 h | 11 |
| December | 25°C | 456 mm | 183 h | 10 |
About 3,782 hours of sun a year. Roughly 111 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.