Taiwan Weather in December: Temps, Rain & Packing Guide

If you’re planning a December trip to Taiwan, you’re in for a treat—mild weather and thinner crowds make it one of the island’s most comfortable travel windows. The northeast monsoon does bring some rain to Taipei and the north, but temperatures hover around a comfortable 15–20°C, cool enough for light layers without the summer humidity. Whether you’re wandering night markets in the capital or heading south toward Kaohsiung, knowing what to pack makes all the difference.

Average temperature range: 15–20°C (59–68°F) · Rainfall: 6 cm (2 inches) · Rainy days: 8 · South (Kaohsiung) highs: 20–24°C · North (Taipei) lows: 7–15°C

Is December a good time to visit Taiwan?

December sits comfortably between the rainy season’s end and the coldest stretch of winter, making it a solid choice for travelers who want mild weather without summer’s oppressive humidity. Typhoon season wraps up by October, so you’re clear of those disruptions. The trade-off? Northern Taiwan, including Taipei, sees increased rainfall from the northeast monsoon—though it’s typically intermittent showers rather than sustained downpours.

Pros and cons of December travel

For most visitors, December works well. Daytime highs in Taipei hover around 18–20°C, comfortable enough for walking tours and market visits without breaking a sweat. Southern cities like Kaohsiung stay warmer, often reaching 22–24°C. The crowds thin out after the October rush, so you’ll find shorter lines at popular attractions.

Comparison to other months

October averages around 26°C in Taipei—significantly warmer than December’s 18°C. By February, temperatures dip further, with lows sometimes hitting 12°C. If you prefer cooler weather and don’t mind occasional showers, December offers a middle ground between summer’s heat and mid-winter’s chill.

The pattern is straightforward: northern Taiwan cools faster and stays cooler through winter, while the south retains warmth longer. Travelers heading to Taroko Gorge or Yushan should account for colder mountain conditions—temperatures drop about 6°C for every 1,000 meters of elevation gain.

What is Taiwan’s coldest month?

January typically claims the title of Taiwan’s coldest month, though December serves as the gateway into that chillier stretch. Average January temperatures in the north settle around 16°C (61°F), while southern Taiwan holds steadier at about 20°C (68°F). Nighttime lows in Taipei can dip to 13–15°C, occasionally dropping further when cool fronts push through.

Monthly temperature overview

The winter season spans December through February, with January marking the statistical low point. Historical data from Encyclopedia.com confirms that lowland temperatures average 16°C in the north and 20°C in the south during January—the most reliable baseline for the coldest period. Frost is rare below 1,200 meters elevation, so coastal and low-lying areas stay relatively mild.

Worst months to avoid

If you’re chasing warmth and sunshine, January and February present the most challenges for outdoor sightseeing. The northeast monsoon peaks during these months, bringing cloud cover and rain to northern and eastern Taiwan. Southern Taiwan remains more forgiving, but you’ll still encounter cooler nights and occasional precipitation.

What should I wear in Taiwan in December?

Layering is the name of the game for December in Taiwan. Daytime highs around 18–22°C make t-shirts manageable in the afternoon, but you’ll want a light jacket or sweater when the sun fades or when wandering air-conditioned malls. The 7–15°C swing between daily highs and lows means you’re constantly adjusting—breathable layers let you do that without overheating.

Layering for variable temps

Start with a comfortable base: long-sleeve shirts or thin knits work well for both day and evening. Add a light jacket, cardigan, or windbreaker that you can easily remove and carry. Long pants—jeans or casual trousers—handle the cooler evenings better than shorts. A scarf comes in handy for cooler mountain excursions or air-conditioned buses.

Footwear and accessories

Closed-toe shoes serve you better than sandals in December, especially if rain catches you outdoors. The northeast monsoon brings moisture to Taipei and the north, so waterproof or quick-drying footwear handles wet sidewalks more gracefully than leather soles. An umbrella or compact raincoat fits easily in a daypack for unexpected showers.

Is Taiwan very cold in December?

“Cold” depends on where you’re coming from. For visitors from temperate or northern climates, December in Taiwan feels mild—comfortable enough for outdoor activities without heavy winter gear. For travelers arriving from tropical regions, the shift from air-conditioned spaces to cool streets might feel jarring. The humidity adds a layer of chill that temperatures alone don’t convey.

Regional differences

Northern Taiwan runs about 4°C cooler than the south on average. Taipei sits in that cooler zone, with December highs around 18–20°C and lows that can dip to 13–15°C. Head to Kaohsiung in the south and you’ll find it noticeably warmer—typically 22–24°C during the day. Coastal cities like Hualien experience more variable conditions, with the east’s precipitous terrain channeling moisture and creating damp, cool mornings.

Snow chances

Snow in Taiwan in December is essentially a non-factor for most travelers. Frost occasionally forms above 1,200 meters, and the highest peaks—Yushan at 3,952 meters—may see snow, but lowland Taiwan stays snow-free. The Taiwan Central Weather Bureau doesn’t track December snowfall in populated areas because it virtually never occurs. Mountain hikers should monitor forecasts closely, but beach-goers and city explorers can ignore snow entirely.

Taiwan weather in December: temperatures and rainfall

December delivers a quiet transition in Taiwan—summer’s humidity fades, the monsoon pattern establishes itself, and temperatures settle into a reliable range. The island’s subtropical monsoon climate means you won’t find dramatic seasonal shifts, but the subtle changes matter for trip planning. Average December temperatures range from roughly 15°C to 22°C depending on region, with northern and mountainous areas on the cooler end.

Celsius vs Fahrenheit

For reference, 15°C equals about 59°F, 20°C translates to 68°F, and 22°C comes in at roughly 72°F. Most international weather services provide both scales, but local forecasts on Taiwan’s Central Weather Bureau site typically emphasize Celsius. American and British visitors should keep this range in mind: you’re looking at roughly 60–72°F, cooler than a typical heated indoor space but warmer than a mild autumn day in New York or London.

City-specific forecasts

December temperatures shift noticeably from north to south, as the table below shows. Taipei sits at the cool end of the December spectrum, with highs around 18–20°C and lows frequently dropping to 13–15°C. The northeast monsoon brings increased cloud cover and intermittent rain—roughly 6 cm over 8 days, according to available data. Keelung, Taipei’s northern port, experiences similar conditions with potentially higher rainfall due to its exposed position.

Kaohsiung in the south maintains warmer averages, typically reaching 22–24°C during the day and holding above 18°C at night. Tainan and the western coastal plain follow a similar pattern—milder than Taipei but not as warm as midsummer. Hualien and the east coast see variable conditions influenced by mountain topography, with frequent cloud cover and rain from frontal systems.

The north-south temperature divide shapes nearly everything about planning a December trip.

The warm and humid summer lasts from May until September, the mild winter from December until February.

— Encyclopedia.com (geography reference)

The average lowland temperature in January is 16°C (61°F) in the north and 20°C (68°F) in the south.

— Encyclopedia.com (climate data)

Summary

December offers a sweet spot for Taiwan travel—comfortable enough for outdoor activities without summer’s heat and humidity, yet without the genuine cold of January and February. The northeast monsoon brings rain to Taipei and the north, but typically in short bursts rather than washout conditions. For travelers willing to pack layers and a compact umbrella, December delivers on accessibility: thinner crowds, manageable weather, and the island’s full range of attractions open without weather-related closures.

The regional divide matters more than any single forecast. Taipei demands a light jacket and rain preparedness; Kaohsiung lets you get away with t-shirts through much of the day. Mountain excursions require significantly warmer gear than lowland cities. Get this geography right and your packing list practically writes itself.

Related reading: Best Travel Apps for Planning Trips · How to Measure Luggage Size

While December offers Taiwan’s mild 18-22°C averages, the extended Taipei weather forecast provides crucial insights on typhoon patterns and regional packing tips.

Frequently asked questions