Phan Thiet weather by month
Phan Thiet runs from about 26°C in December to 30°C in May, with July the wettest month at 271 mm.
warmest month
May
30°C
coolest month
December
26°C
wettest month
July
271 mm
worst air month
June
18 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 27°C | 0 mm | 345 h | 14 |
| February | 27°C | 0 mm | 338 h | 12 |
| March | 28°C | 2 mm | 365 h | 13 |
| April | 29°C | 12 mm | 356 h | 15 |
| May | 30°C | 88 mm | 354 h | 14 |
| June | 29°C | 141 mm | 314 h | 18 |
| July | 27°C | 271 mm | 299 h | 17 |
| August | 28°C | 147 mm | 356 h | 15 |
| September | 27°C | 229 mm | 273 h | 12 |
| October | 27°C | 201 mm | 285 h | 11 |
| November | 28°C | 25 mm | 300 h | 13 |
| December | 26°C | 98 mm | 226 h | 12 |
About 3,811 hours of sun a year. Roughly 122 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.