Kaohsiung weather in December

December in Kaohsiung: warm, a little rain, with muggy air — an excellent time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Kaohsiung🇹🇼 Taiwan · Taiwan & Okinawa · City84
  1. 87Jan
  2. 90Feb
  3. 80Mar
  4. 69Apr
  5. 50May
  6. 40Jun
  7. 43Jul
  8. 37Aug
  9. 52Sep
  10. 60Oct
  11. 72Nov
  12. 84Dec

#3 of 12 months in Kaohsiung · #333 of 1413 destinations to visit in December · comfort 84/100 (tier A)

Days
26°C
Nights
18°C
Wet days
6
Sun
8.2 h
Humidity
77%
Daylight
11 h
Kaohsiung, Taiwan
Photo: Sunny Li · Pexels

Traveller notes on Kaohsiung in December

Notes from nearby Alishan (111 km away)

Kaohsiung doesn't have its own notes for December yet — these are about Alishan, close enough to share the season.

December at Alishan is a different climate from the rest of Taiwan: the mountain runs 10 to 15C colder than sea level, so a 12 to 17C day in the cities is around 10C or below up here, and mornings and evenings are properly cold. The packing list regulars give is long trousers, layers, a jacket and a scarf, with gloves if you are going up for the sunrise. That sunrise is why most people come - the train from Alishan station up to Zhushan - and the honest warning attached is that the mountain is shrouded in cloud most mornings, so a good many visitors see nothing. The record: 13.3C days that feel like 12C, 6.5C nights, 16.6 precipitation days carrying 71.3mm and 8.6 hours of sun.
ShroudedMostMornings · December · 1 month ago · about Alishan · Read more on Tripadvisor ↗

Other months in Kaohsiung

Forum posters describe August in Kaohsiung as basically a daily heatwave, with one local citing temperatures around 30-38C, and posters generally naming July and August as Taiwan's hottest months overall, typically 33-36C with high humidity. Posters consistently flag August through October as typhoon season, a real factor to track for any Kaohsiung trip this time of year. Posters describe rain as occurring periodically rather than daily, though June through August sees the heaviest rainfall totals of the year. Posters are direct that August isn't the ideal weather month, but note millions of visitors still come to Taiwan every summer regardless. Posters generally rate August as hot, humid and typhoon-watchful, but still genuinely travel-friendly for Kaohsiung.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe Kaohsiung in February as warm and dry enough that jackets weren't needed day or night on at least one recent visit, consistent with the broader pattern posters give for southern Taiwan generally - mild winters, typically 15-20C, not the rainy season though a stray shower is always possible. The one scheduling wrinkle worth planning around: Chinese New Year (early-to-mid February) brings sold-out public transport and higher accommodation rates, but posters call it worth the hassle for the festive atmosphere, which they say isn't matched at any other time of year.
Tripadvisor community · February · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Kaohsiung's card on the map.

Kaohsiung climate normals — December

Daytime high26°C / 79°F🌤 warm
Nighttime low18°C / 65°F
Feels like (high)27°C / 81°F
Sea temperature25°C / 78°F😎 warm sea
Rainfall30 mm / 1.2 in🌦 some rain
Rainy days6 days
Humidity77%💦 very humid
Dew point16°C / 60°F
Sunshine8.2 h/day
Daylight10.8 h
Wind17 km/h / 11 mph
Air quality (US AQI)75🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Kaohsiung 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)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Kaohsiung'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 weatherKaohsiung's weather peaks December–February.

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Best weatherFair weatherToughest weather

What's on in Kaohsiung in December

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Hazard

    Winter air-quality season

    1 Oct – 31 Mar · usuallyWinter smog

    The rain stops, the wind drops and the petrochemical belt on the north side has nowhere to go. It is the trade you make for the dry, warm winter that otherwise makes this the best half of the year. Source ↗

What's on around the world in December →

Nearby, and something's on

Within 300 km of Kaohsiung — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Kaohsiung?

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Kaohsiung in December — FAQ

Is December a good time to visit Kaohsiung?
December in Kaohsiung: warm, a little rain, with muggy air — an excellent time to visit. It ranks #3 of 12 months for Kaohsiung on SeasonMap's comfort score (84/100).
What is the weather like in Kaohsiung in December?
In December, Kaohsiung averages a daily high of 26.2°C and a low of 18.4°C, with about 30.4 mm of rain over roughly 6.1 rainy days.
What is the air quality in Kaohsiung in December?
Kaohsiung has a mean US Air Quality Index of about 75 in 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.