Tainan weather in January
January in Tainan: nice, a little rain, with very humid — one of the best months to visit.
#2 of 12 months in Tainan · #140 of 897 destinations to visit in January · comfort 88/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Tainan in January
No notes yet. Open Tainan on the map to add the first one.
Tainan climate normals — January
| Daytime high | 22°C / 72°F | 😎 nice |
|---|---|---|
| Nighttime low | 16°C / 61°F | |
| Rainfall | 34 mm / 1.4 in | 🌦 some rain |
| Rainy days | 6 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 15°C / 58°F | |
| Sunshine | 8.9 h/day | |
| Daylight | 10.9 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 80 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Tainan?
Loading map…
Tainan in January — FAQ
- Is January a good time to visit Tainan?
- January in Tainan: nice, a little rain, with very humid — one of the best months to visit. It ranks #2 of 12 months for Tainan on SeasonMap's comfort score (88/100).
- What is the weather like in Tainan in January?
- In January, Tainan averages a daily high of 22°C and a low of 16.1°C, with about 34.4 mm of rain over roughly 5.6 rainy days.
- What is the air quality in Tainan in January?
- Tainan has a mean US Air Quality Index of about 80 in January.