Tainan weather in December
December in Tainan: nice, a little rain, with very humid — an excellent time to visit.
#3 of 12 months in Tainan · #178 of 897 destinations to visit in December · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Tainan in December
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Tainan climate normals — December
| Daytime high | 23°C / 74°F | 😎 nice |
|---|---|---|
| Nighttime low | 18°C / 64°F | |
| Rainfall | 52 mm / 2.1 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 16°C / 60°F | |
| Sunshine | 8.6 h/day | |
| Daylight | 10.7 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 75 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Tainan in December — FAQ
- Is December a good time to visit Tainan?
- December in Tainan: nice, a little rain, with very humid — an excellent time to visit. It ranks #3 of 12 months for Tainan on SeasonMap's comfort score (85/100).
- What is the weather like in Tainan in December?
- In December, Tainan averages a daily high of 23.1°C and a low of 17.7°C, with about 52.1 mm of rain over roughly 8 rainy days.
- What is the air quality in Tainan in December?
- Tainan has a mean US Air Quality Index of about 75 in December.