Tainan weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Excellent
Best time to visit: October – April
What is the weather like in Tainan in January?
In January, Tainan is warm: daytime highs average 21 °C, and nights cool down to about 16 °C. The sea averages 23.7 °C – pleasant for swimming. Expect around 6 hours of sunshine a day. Rain falls on about 7 days, adding up to 46 mm. All in all, January is an excellent month for a holiday in Tainan.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 81 | 82 | 81 |
| Day | 23° | 21° | 23° |
| Night | 17° | 16° | 16° |
| Sea | 25° | 24° | 24° |
| Sun | 5 h | 6 h | 6 h |
| Rain days | 7 | 7 | 8 |
More details for January
- Daylight
- 10 h 52 min06:42 – 17:34
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 2 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 48 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+8Asia/Taipei
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %42 %
- Few rainy daysweight 30 %79 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in January
- Swimwear
- Sunscreen
- A jumper for the evenings
Tainan in January: quick answers
Is Tainan hot in January?
Warm rather than hot: in January, daytime highs in Tainan average 21 °C and nights cool to about 16 °C.
Can you swim in Tainan in January?
Yes. In January the sea averages 23.7 °C – pleasant for swimming.
Does it rain much in Tainan in January?
Rain falls on about 7 days, adding up to 46 mm.
Tainan month by month
The whole year in TainanAll destinations: TaiwanWhere to go in JanuarySea temperature in January
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences