Mornings sit near the overnight low around 14°C with clear, cooler light — best for outdoor photos before crowds build.
Tainan Weather in January
Everything you need to know about Tainan weather in January
Updated September 10, 2026
Taiwan · Tainan
Tainan Weather in January
January in Tainan is mild, clear and pleasantly walkable. Expect daytime highs around 21°C (70°F), mild nights around 14°C, long sunny stretches, and a calmer pace than peak season Check the full climate tables below for monthly averages and packing cues.
- Avg high / low
- 21°C / 14°C
- 70F / 57F
- Precipitation
- 40mm
- 5 wet days
- Daylight
- 9.5 hrs
- near the annual low
Tainan average temperatures through the year
JanuaryRest of the year
21°
22°
25°
28°
31°
33°
35°
35°
33°
29°
25°
22°
JAN
5 wet
FEB
6 wet
MAR
8 wet
APR
9 wet
MAY
12 wet
JUN
14 wet
JUL
12 wet
AUG
13 wet
SEP
10 wet
OCT
6 wet
NOV
5 wet
DEC
4 wet
Daytime highs in Celsius with wet days per month for Tainan. January sits at 21°C with 5 wet days.
The short answer
January falls in Tainan's cool season. Daytime highs average 21°C (70°F) with nights near 14°C (57°F). Precipitation totals about 40mm across roughly 5 wet days. Settling snow is uncommon. Visiting works well if you plan for medium crowds Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
January climate in Tainan
Monthly averages for Tainan, Taiwan.
- Day high
- 21°C
- 70°F
- Night low
- 14°C
- 57°F
- Precipitation
- 40mm
- 1.6 in
- Wet days
- 5
- rain or drizzle
- Sunrise
- 7:15am
- mid-January
- Sunset
- 4:45pm
- near the annual low
- Daylight
- 9.5 hrs
- 7 hrs sunshine
Averages based on long-run monthly climate normals. Last updated September 10, 2026.
Real weeks swing around the 18°C mean. Early January often sits near 21°C while the final week lands closer to 21°C. Pack a spare layer for that 1° drift rather than dressing only for the monthly average Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Rain and drizzle usually arrive in pulses across the 5 wet days. Dry stretches between systems feel clearer and colder overnight. Use those gaps for outdoor sightseeing and keep indoor backups for the wetter clusters Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
What is the average temperature in Tainan in January?
The average temperature in Tainan in January is around 18°C (64°F), combining daytime highs of 21°C (70°F) with night lows of 14°C (57°F). The month cools steadily: the first days average highs near 21°C, while the final week typically tops out around 21°C with nights of 14°C.
Average daily high and low through January. The month cools by roughly 1 degrees start to finish.
How much does it rain in Tainan in January?
Tainan gets around 40mm (1.6in) of precipitation in January, spread over roughly 5 wet days. Wet spells typically last a day or two and clear to drier stretches in between Check the full climate tables below for monthly averages and packing cues.
40
48
64
72
96
112
96
104
80
48
40
32
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Average precipitation by month in millimetres. January's 40mm sits near the annual rhythm.
Average precipitation by hour of day in Tainan
January precipitation in Tainan falls fairly evenly around the clock, with a mild overnight and early-morning peak. There is no predictable afternoon-downpour pattern — check the day's forecast rather than timing outings by the clock Check the full climate tables below for monthly averages and packing cues.
12am6am12pm6pm12am
Relative share of January precipitation by hour of day. The distribution is fairly flat, with a mild overnight peak.
When is sunrise and sunset in Tainan in January?
January daylight in Tainan averages about 9.5 hours, near the annual low. Sunrise drifts from 7:15am to 7:31am across the month, while sunset holds near 4:45pm before edging toward 4:55pm. Plan outdoor sightseeing in the brighter midday window Check the full climate tables below for monthly averages and packing cues.
Sunrise and sunset through January. The shaded band is daylight Check the full climate tables below for monthly averages and packing cues.
How humid is Tainan in January?
Relative humidity in Tainan in January averages around 68 percent. At 21°C that usually feels manageable outdoors. Temperature and wind still drive packing more than humidity alone Check the full climate tables below for monthly averages and packing cues.
68
70
72
75
78
82
80
80
76
70
68
66
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Average relative humidity by month. January sits near 68%.
What is the weather like in Tainan the rest of the year?
Tainan moves from cooler months near 21°C highs through a warmer peak near 35°C. The best-weather stretch usually aligns with January and February. January sits in the cool season arc with 21°C highs Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Average high (coral) and low (navy) by month. The shaded band is the typical daily range; JAN is marked.
Is January a good time to visit Tainan?
Yes — if you accept medium crowds. Here is the honest trade-off.
OverallGreat for mild travel
WeatherCool and clear
CrowdsMedium
PricesMid
Budget (per night)$140 to $220
Book ahead3 to 5 weeks
January in Tainan is defined by mild and comfortable and 21°C days. Stays often land in the $140–$220 range with mid season demand. The smartest move is to book about 3–5 weeks ahead and keep outdoor blocks in the brighter midday window Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Pros
- 21°C highs suit mild days in Tainan
- 7h average sunshine for daytime plans
- Medium crowds shape the January pace
- Mid season rates for stays and flights
Cons
- 5 wet days can pause outdoor sightseeing
- Humidity at 68% can feel heavier than the air temp
- Some attractions keep shorter winter hours
- Daylight near 9.5 hrs shortens evening walks
Travelling to Tainan in January?
Book lodgings about 3–5 weeks ahead, then visit the busiest central sights right at opening on a weekday to skip the mid-afternoon crush first-timers always hit Check the full climate tables below for monthly averages and packing cues. Compare months on our Best Time to Visit Tainan guide.
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What January actually feels like
January is Tainan's cool season in lived terms: mild and comfortable. Most days feel cold, dry and often clear, with damper grey stretches arriving in bursts rather than settling in for the whole month Check the full climate tables below for monthly averages and packing cues.
The underestimated variable is short daylight. It truncates outdoor evenings and pushes dinner earlier. Build one indoor spare block every day Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Early January often starts near 21°C while the final week trends toward 21°C. That 1° drift is enough to change coat weight mid-trip. Recheck the forecast before packing day seven Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Afternoons reach 21–22°C before an early sunset near the 9.5-hour daylight limit — plan open-air stops then.
Evenings cool quickly toward 14°C; shift to indoor dining and illuminated streets once the light drops.
January in Tainan, week by week
Crowds and prices move more than the thermometer.
January 1–7
21°C (70°F)- Crowds
- Medium
- Prices
- Mid season
- Best for
- Quieter weekday exploring
January 8–14
21°C (70°F)- Crowds
- Medium
- Prices
- Mid season
- Best for
- Balanced weather window
January 15–21
21°C (70°F)- Crowds
- Medium
- Prices
- Mid season
- Best for
- Steady mid-month pace
January 22–31
21°C (70°F)- Crowds
- Medium
- Prices
- Mid season
- Best for
- Late-month flexible plans
Temperatures are Tainan monthly averages split across each window. Individual years vary by several degrees.
Tainan events in January
The fixtures worth timing your trip around, and how they move the crowds.
Through January
JAN
Mild and comfortable in Taiwan
Mild and comfortable reshapes costs and crowds for visitors.
Timing note
Exact dates shift each year. Check dates for your travel year, or let Holi-AI sequence them into your plan automatically.
What to pack and wear for Tainan in January
Layers for swingy days
Pack for Tainan in January around the 21°C / 14°C swing. The governing rule is stack thin layers. The one item worth buying before you fly is a breathable mid-layer Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Essential
- Light jacket
- Comfortable walkers
- Compact umbrella
- Merino mid-layer
Smart additions
- Scarf or buff
- Portable charger
- Clear tote for layers
- Lip balm SPF
Leave behind
- Thick parkas
- Wool sweaters
- Snow boots
Top places to visit in Tainan in January
Outdoor icons with shade breaks
City centre · Free
Tainan landmark walk
Go early on weekdays for quieter photos and softer light.
Add to your planWaterfront · Free
Harbour or river promenade
Golden hour is the calmest window Check the full climate tables below for monthly averages and packing cues.
Add to your planMuseum quarter · Paid
Flagship museum morning
Weekday openings beat weekend queues and wet-day backups.
Add to your planOld town · Free
Historic streets loop
Late morning light helps cold stone feel less harsh.
Add to your planPark · Free
Central green escape
Shade and benches make longer walks realistic Check the full climate tables below for monthly averages and packing cues.
Add to your planCovered market · Free
Indoor food hall backup
Ideal when wet days interrupt outdoor plans Check the full climate tables below for monthly averages and packing cues.
Add to your plan
Top places to stay in January
Base near the sights that matter in January
Best overall
Central core
Walkable to main sights with easier 9.5-hour daylight logistics Check the full climate tables below for monthly averages and packing cues.
Best value
One transit stop out
Lower rates than the core while staying close for medium evenings.
Local feel
Neighbourhood streets
Quieter nights and easier restaurant bookings than the busiest tourist blocks.
Top restaurants to visit in January
Breezy rooms and light seasonal plates
Downtown · Classic
Tainan lunch counter
Hearty midday stop when outdoor plans run short on daylight.
Add to your planOld town · Cosy
Neighbourhood bistro
Low light and early dinners match short sunset windows Check the full climate tables below for monthly averages and packing cues.
Add to your planMarket · Casual
Covered market stalls
Fast warm food without a reservation on wet afternoons Check the full climate tables below for monthly averages and packing cues.
Add to your planRiverside · Scenic
Waterfront cafe
Daylight seating works best before the evening chill Check the full climate tables below for monthly averages and packing cues.
Add to your planArts district · Modern
Gallery-side kitchen
Pairs well with museum days when weather turns Check the full climate tables below for monthly averages and packing cues.
Add to your planResidential · Local
Corner noodle or soup spot
Simple, hot bowls that suit cold or humid evenings Check the full climate tables below for monthly averages and packing cues.
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Tainan weather by month
How January compares. Every month links to its full weather guide.
| Month | Avg high | Wet days | Crowds | Cost | Overall | Best for |
|---|---|---|---|---|---|---|
| January | 21°C (70°F) | 5 | Medium | Mid | Great | Mild — this guide |
| February | 22°C (72°F) | 6 | Medium | Mid | Great | Warm, low rainfall |
| March | 25°C (77°F) | 8 | High | High | Great | Pleasant spring weather |
| April | 28°C (82°F) | 9 | High | High | Great | Warm and sunny |
| May | 31°C (88°F) | 12 | High | Peak | Okay | Getting hot and humid |
| June | 33°C (91°F) | 14 | Medium | Mid | Avoid | Monsoon rains begin |
| July | 35°C (95°F) | 12 | High | High | Avoid | Very hot and humid |
| August | 35°C (95°F) | 13 | High | High | Avoid | Typhoon season risk |
| September | 33°C (91°F) | 10 | Medium | Mid | Okay | Still warm, easing rains |
| October | 29°C (84°F) | 6 | High | High | Great | Best weather window |
| November | 25°C (77°F) | 5 | Medium | Mid | Great | Comfortable temperatures |
| December | 22°C (72°F) | 4 | High | High | Great | Mild, holiday atmosphere |
Temperatures shown as Tainan monthly averages.
January vs December: January averages 18°C versus 19°C in December — a 1°C cooldown. Crowds shift from High to Medium while pricing moves into mid season. Pick January if you want mild and comfortable Check the full climate tables below for monthly averages and packing cues.
January vs February: February trends to 19°C, 1°C warmer than January. Expect medium crowds and mid season rates. Pick February if you prefer warm, low rainfall Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Want January sun instead?
Need more sun than Tainan offers in January?
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A change of scene with comparable January weather. Tainan vs Taipei →
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Kaohsiung in January
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Tainan in January FAQ
Everything you need to know about Tainan weather in January
Daytime highs average 21°C (70°F) and nights fall near 14°C (57°F). The monthly mean sits around 18°C. Expect a 1° swing from early to late January Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
How we work this out
Temperature and rainfall figures are 30-year meteorological averages. Crowd levels come from national tourism arrival data. Price bands reflect mid-range accommodation and economy flights from major long-haul cities, sampled quarterly.
Last updated September 10, 2026 · Written by the Holicay travel team