Taipei weather by month
Taipei runs from about 16°C in January to 30°C in July, with October the wettest month at 386 mm.
warmest month
July
30°C
coolest month
January
16°C
wettest month
October
386 mm
worst air month
July
28 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 16°C | 39 mm | 186 h | 20 |
| February | 18°C | 45 mm | 160 h | 25 |
| March | 19°C | 88 mm | 204 h | 24 |
| April | 24°C | 148 mm | 226 h | 28 |
| May | 25°C | 205 mm | 231 h | 23 |
| June | 28°C | 194 mm | 247 h | 28 |
| July | 30°C | 232 mm | 345 h | 28 |
| August | 29°C | 185 mm | 332 h | 28 |
| September | 28°C | 282 mm | 293 h | 19 |
| October | 25°C | 386 mm | 201 h | 15 |
| November | 22°C | 103 mm | 115 h | 17 |
| December | 17°C | 32 mm | 107 h | 17 |
About 2,647 hours of sun a year. Roughly 186 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 2026-05-22. Full method, licences and the list of sources we rejected are on the methodology page.