SeasonMapSun Moon Lake (Yuchi) weather in December
Taiwan
December in Sun Moon Lake: nice, a little rain, with muggy air — one of the best months to visit.
#1 of 12 months in Sun Moon Lake · #106 of 1383 destinations to visit in December · comfort 90/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sun Moon Lake in December
Other months in Sun Moon Lake
Sun Moon Lake's forum flags January and the other cooler months for fog — regulars describe it as a genuine hit-or-miss attraction depending on the day, since mist can roll in and cut the view. One recent visitor got lucky with plenty of sun and called the quieter winter atmosphere a different, still worthwhile kind of beautiful.
Add your own note from Sun Moon Lake's card on the map.
Sun Moon Lake climate normals — December
| Daytime high | 20°C / 67°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 54°F | |
| Feels like (high) | 20°C / 68°F | |
| Rainfall | 39 mm / 1.5 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 81% | 💦 very humid |
| Dew point | 12°C / 54°F | |
| Sunshine | 8.7 h/day | |
| Daylight | 10.7 h | |
| Wind | 6 km/h / 4 mph | |
| Air quality (US AQI) | 74 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Sun Moon Lake in December
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Busyschool holidays in 5 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Sun Moon Lake's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherSun Moon Lake's weather peaks December–February.
Best weatherFair weatherToughest weather
Nearby, and something's on
Within 300 km of Sun Moon Lake — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Sun Moon Lake?
Sun Moon Lake in December — FAQ
- Is December a good time to visit Sun Moon Lake?
- December in Sun Moon Lake: nice, a little rain, with muggy air — one of the best months to visit. It ranks #1 of 12 months for Sun Moon Lake on SeasonMap's comfort score (90/100).
- What is the weather like in Sun Moon Lake in December?
- In December, Sun Moon Lake averages a daily high of 19.5°C and a low of 12.2°C, with about 39.3 mm of rain over roughly 8.3 rainy days.
- What is the air quality in Sun Moon Lake in December?
- Sun Moon Lake has a mean US Air Quality Index of about 74 in December.
Other months in Sun Moon Lake
Compare Sun Moon Lake in December
Warmer or cooler than Sun Moon Lake in December
Similar destinations in East Asia — December
Within 300 km: Alishan's Sunrise and sea of clouds around 15 Oct – 15 Apr, and Taipei's Hot spring season on 1 Nov – 15 Mar.