Keelung weather in January

In January, Keelung sees average daytime highs of 18°C and overnight lows near 15°C, with 178 mm of rain across 19.4 wet days and about 10.6 hours of daylight. It is the 12th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 18°C through the month. The sky is clear or mostly clear about 17% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 h 30 min at the start of January to 10 h 48 min by month's end. Set against the rest of the year, January is Keelung's 11th-clearest and 4th-windiest month. For the whole year in context, see Keelung's year-round climate.

Daytime high
18°
12th warmest
Overnight low
15°
1st coldest
Rainfall
178 mm
19.4 wet days
Daylight
10 h 36 min
6:44 AM – 5:20 PM
Cloud cover
76%
11th clearest
Wind
24 km/h
4th windiest
Solar energy
2.23 kWh/m²
Travel score
4.3
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 18°C through the month.

A typical January day in Keelung reaches about 18°C in the afternoon and slips back to 15°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 21°C. Set against its neighbours, January runs about 2°C cooler than December and on par with February.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11816
21816
31816
41816
51816
61816
71816
81816
91816
101816
111815
121815
131815
141815
151815
161815
171715
181715
191715
201715
211715
221715
231715
241715
251715
261715
271715
281715
291715
301715
311715

How January really feels in Keelung

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Keelung weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan18° / 15°17819.410.64.3
Feb18° / 15°17217.111.14.5
Mar20° / 17°16017.611.85.1
Apr23° / 20°13314.512.65.9
May25° / 23°16314.213.26.0
Jun28° / 26°14113.213.55.4
Jul29° / 27°1039.213.45.5
Aug29° / 27°17112.812.95.3
Sep27° / 26°19215.212.25.7
Oct25° / 23°20515.511.46.0
Nov22° / 20°19517.610.85.4
Dec19° / 17°18618.910.54.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 7% of January, with mostly cloudy or overcast conditions the remaining 76%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
22971
32872
42872
52773
62773
72674
82674
92575
102575
112476
122476
132476
142377
152377
162278
172278
182278
192278
202377
212278
222278
232377
242278
252377
262377
272377
282377
292377
302377
312476

Chance of precipitation in January

Any precipitation

Keelung gets around 178 mm of rain over 19.4 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 63% and peaks near 66% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
157
258
358
459
559
660
760
861
962
1062
1163
1263
1364
1464
1564
1665
1765
1865
1966
2066
2166
2266
2366
2466
2566
2666
2766
2865
2965
3064
3164

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the dry band about 54% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14829194
24829194
34828194
44928194
54928194
64928194
74927194
85027194
95027194
105026204
115026204
125026204
135325193
145325193
155325193
165425183
175525182
185724172
195724172
205725162
215725162
225925151
235925151
245826151
255926141
265926141
275926141
286026131
295927131
305927131
315827141

Wind in January

Winds average 24 km/h in January.

Across January, daily wind ranges from about 24 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
124breezy
224breezy
324breezy
424breezy
524breezy
624breezy
724breezy
824breezy
924breezy
1024breezy
1124breezy
1224breezy
1324breezy
1424breezy
1524breezy
1624breezy
1724breezy
1824breezy
1924breezy
2024breezy
2124breezy
2224breezy
2324breezy
2424breezy
2524breezy
2624breezy
2724breezy
2824breezy
2924breezy
3024breezy
3124breezy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 30 min at the start of January to 10 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over January. Sunrise moves from 6:42 AM to 6:42 AM, and sunset from 5:10 PM to 5:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.56:425:10
210.56:435:11
310.56:435:11
410.56:435:12
510.56:435:13
610.56:445:13
710.56:445:14
810.56:445:15
910.56:445:15
1010.56:445:16
1110.56:445:17
1210.56:445:17
1310.66:445:18
1410.66:445:19
1510.66:445:19
1610.66:445:20
1710.66:445:21
1810.66:445:22
1910.66:445:22
2010.66:445:23
2110.76:445:24
2210.76:445:25
2310.76:445:25
2410.76:445:26
2510.76:435:27
2610.76:435:27
2710.86:435:28
2810.86:435:29
2910.86:425:30
3010.86:425:30
3110.86:425:31

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.23 kWh/m².

For context, solar energy here swings from a low near 2.08 kWh/m² to a high of 6.15 kWh/m² in July across the year — January's 2.23 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.2Moderate
22.2Moderate
32.2Moderate
42.2Moderate
52.2Moderate
62.2Moderate
72.2Moderate
82.2Moderate
92.2Moderate
102.2Moderate
112.2Moderate
122.2Moderate
132.2Moderate
142.2Moderate
152.2Moderate
162.2Moderate
172.2Moderate
182.2Moderate
192.2Moderate
202.2Moderate
212.2Moderate
222.2Moderate
232.2Moderate
242.2Moderate
252.2Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.4Moderate
312.4Moderate
Planning a trip in January

Hazard calendar for Keelung

In seasonPeak

In January, Keelung sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Keelung sits in the Pacific typhoon belt; the season peaks July–October.

Pacific typhoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Keelung?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.3
Sightseeing
12th-best month of the year
1.3
Beach & pool
12th-best month of the year

January is a reasonable time to visit Keelung for sightseeing.

What to pack for Keelung in January

From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In January, Keelung sees daytime highs around 18°C and nights near 15°C. Pack rain gear. Worth having: a windbreaker. About 19 days see rain.

rain geara windbreaker

Sea temperature near Keelung in January

The nearest coast averages about 21°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 km away) is warmest in August at about 28°C and coldest in January near 21°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb21Refreshing
Mar22Refreshing
Apr24Refreshing
May25Warm
Jun27Warm
Jul28Tropical
Aug28Tropical
Sep27Warm
Oct26Warm
Nov24Warm
Dec23Refreshing

UV index in Keelung in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Keelung peaks around June 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highVery highHighJun 18UV 11Dec 22UV 4
UV index (midday)Level
Jan5Moderate
Feb7Very high
Mar9Very high
Apr8Very high
May10Extreme
Jun12Extreme
Jul11Extreme
Aug9Very high
Sep11Extreme
Oct8Very high
Nov7High
Dec4Moderate

Air quality in Keelung in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Keelung is worst in April — around 47 µg/m³ PM2.5 (poor), about 2.3× the cleanest month (October, 20 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateApr 1447 µg/m³Oct 1521 µg/m³
PM2.5 (µg/m³)Level
Jan29Moderate
Feb36Poor
Mar44Poor
Apr47Poor
May42Poor
Jun42Poor
Jul34Moderate
Aug28Moderate
Sep24Moderate
Oct20Moderate
Nov25Moderate
Dec25Moderate
Location & terrain

Where is Keelung?

Keelung sits at 25.1°N, 121.7°E, 19 m above sea level, in Taiwan. The nearest listed city is Jiufen, 11 km away.

TaipeiSanzhiNew Taipei CityDanshuiBanqiao

Topography around Keelung

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Keelung.

Within 3 km, the terrain around Keelung has only modest variations in elevation — a maximum elevation change of 197 m around an average of 58 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 907 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,613 m.

The land around Keelung is covered by trees (58%) and artificial surfaces (32%) within 3 km, trees (59%) and water (35%) within 16 km, and water (62%) and trees (31%) within 80 km.

3 km
197 m
16 km
907 m
80 km
2,613 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Jiufen 11 km · Xizhi 11 km · Neihu 16 km · Taipei 23 km · Sanzhi 28 km · New Taipei City 30 km · Danshui 30 km · Banqiao 30 km

Taiwan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
110 / 220 V · 60 Hz
Happiness
6.7 / 10
World Happiness, 2025
Religion
Buddhist 35%Taoist 33%none or unspecified 18%folk religion approximately 10%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Keelung (25.1309°, 121.7409°, elevation 19 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).