Kaohsiung weather by month
Kaohsiung runs from about 20°C in January to 29°C in July, with July the wettest month at 663 mm.
warmest month
July
29°C
coolest month
January
20°C
wettest month
July
663 mm
worst air month
October
37 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 20°C | 6 mm | 299 h | 26 |
| February | 22°C | 7 mm | 301 h | 28 |
| March | 23°C | 9 mm | 303 h | 32 |
| April | 27°C | 104 mm | 313 h | 28 |
| May | 27°C | 161 mm | 291 h | 28 |
| June | 29°C | 153 mm | 329 h | 20 |
| July | 29°C | 663 mm | 336 h | 20 |
| August | 28°C | 227 mm | 300 h | 25 |
| September | 28°C | 361 mm | 287 h | 30 |
| October | 27°C | 662 mm | 271 h | 37 |
| November | 24°C | 123 mm | 273 h | 33 |
| December | 20°C | 21 mm | 240 h | 28 |
About 3,543 hours of sun a year. Roughly 171 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.