My Tho weather by month
My Tho runs from about 26°C in December to 30°C in April, with September the wettest month at 370 mm.
warmest month
April
30°C
coolest month
December
26°C
wettest month
September
370 mm
worst air month
June
44 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 27°C | 4 mm | 342 h | 25 |
| February | 27°C | 4 mm | 335 h | 18 |
| March | 28°C | 3 mm | 365 h | 22 |
| April | 30°C | 5 mm | 360 h | 27 |
| May | 29°C | 204 mm | 327 h | 37 |
| June | 28°C | 177 mm | 270 h | 44 |
| July | 27°C | 348 mm | 223 h | 27 |
| August | 27°C | 240 mm | 320 h | 22 |
| September | 27°C | 370 mm | 221 h | 20 |
| October | 26°C | 367 mm | 248 h | 28 |
| November | 27°C | 95 mm | 303 h | 29 |
| December | 26°C | 155 mm | 244 h | 32 |
About 3,558 hours of sun a year. Roughly 179 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.