Erlin weather in January

In January, Erlin sees average daytime highs of 18°C and overnight lows near 16°C, with 46 mm of rain across 5.5 wet days and about 10.7 hours of daylight. It is the 12th-warmest and 10th-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 62% of the time in January, and the air most often feels comfortable.

Daylight stretches from about 10 h 30 min at the start of January to 10 h 54 min by month's end. Set against the rest of the year, January is Erlin's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Erlin's year-round climate.

Daytime high
18°
12th warmest
Overnight low
16°
1st coldest
Rainfall
46 mm
5.5 wet days
Daylight
10 h 42 min
6:48 AM – 5:28 PM
Cloud cover
35%
2nd clearest
Wind
32 km/h
2nd windiest
Solar energy
3.74 kWh/m²
Travel score
6.9
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 Erlin reaches about 18°C in the afternoon and slips back to 16°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 20°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)
11917
21917
31917
41817
51817
61817
71817
81816
91816
101816
111816
121816
131816
141816
151816
161816
171816
181816
191816
201816
211816
221816
231816
241816
251816
261816
271716
281716
291816
301816
311816

How January really feels in Erlin

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.

Erlin weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan18° / 16°465.510.76.9
Feb18° / 16°697.611.26.5
Mar21° / 18°11010.211.86.7
Apr24° / 22°15910.912.56.8
May26° / 24°27514.113.16.0
Jun28° / 26°36117.613.44.8
Jul29° / 27°2351713.34.6
Aug29° / 26°30919.112.84.5
Sep28° / 26°13010.212.16.3
Oct26° / 24°383.111.48.3
Nov23° / 21°383.310.88.4
Dec20° / 18°464.610.67.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 62% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 25%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17822
27822
37822
47822
57822
67921
77822
87822
97822
107723
117723
127723
137723
147723
157525
167525
177525
187525
197426
207426
217327
227426
237426
247426
257426
267327
277327
287327
297228
307228
317228

Chance of precipitation in January

Any precipitation

Erlin gets around 46 mm of rain over 5.5 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 18% and peaks near 20% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
115
215
315
415
515
616
716
816
917
1017
1117
1217
1317
1418
1518
1618
1719
1819
1920
2020
2120
2220
2320
2420
2520
2620
2720
2820
2920
3020
3120

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the comfortable band about 39% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12536364
22536354
32636353
42636343
52737343
62737333
72837333
82837323
92937323
102937322
113037312
123037312
133137302
143137302
153237292
163338282
173338271
183438261
193539251
203539241
213640231
223641221
233641211
243742201
253742191
263843191
273843181
283843181
293843181
303843181
313843181

Wind in January

Winds average 32 km/h in January.

Across January, daily wind ranges from about 32 km/h on the calmest days to 33 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
132windy
232windy
332windy
432windy
532windy
632windy
732windy
832windy
932windy
1032windy
1132windy
1232windy
1332windy
1432windy
1533windy
1633windy
1733windy
1833windy
1933windy
2033windy
2133windy
2233windy
2333windy
2433windy
2533windy
2633windy
2733windy
2833windy
2933windy
3033windy
3132windy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 30 min at the start of January to 10 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over January. Sunrise moves from 6:45 AM to 6:45 AM, and sunset from 5:18 PM to 5:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.56:455:18
210.66:465:19
310.66:465:19
410.66:465:20
510.66:465:21
610.66:475:21
710.66:475:22
810.66:475:23
910.66:475:23
1010.66:475:24
1110.66:475:25
1210.66:475:25
1310.66:485:26
1410.76:485:27
1510.76:485:27
1610.76:485:28
1710.76:485:29
1810.76:485:29
1910.76:485:30
2010.76:475:31
2110.76:475:32
2210.86:475:32
2310.86:475:33
2410.86:475:34
2510.86:475:34
2610.86:475:35
2710.86:465:36
2810.86:465:36
2910.96:465:37
3010.96:455:38
3110.96:455:39

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.74 kWh/m².

For context, solar energy here swings from a low near 3.42 kWh/m² to a high of 5.71 kWh/m² in July across the year — January's 3.74 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.6Moderate
83.6Moderate
93.6Moderate
103.6Moderate
113.7Moderate
123.7Moderate
133.7Moderate
143.7Moderate
153.7Moderate
163.7Moderate
173.7Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.7Moderate
223.8Moderate
233.8Moderate
243.8Moderate
253.8Moderate
263.8Moderate
273.8Moderate
283.9Moderate
293.9Moderate
303.9Moderate
313.9Moderate
Planning a trip in January

Hazard calendar for Erlin

In seasonPeak

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

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

Erlin's monsoon runs May–August, when most of the year's rain falls.

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

Is January a good time to visit Erlin?

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

6.9
Sightseeing
4th-best month of the year
2.3
Beach & pool
12th-best month of the year

January is a reasonable time to visit Erlin for sightseeing.

What to pack for Erlin in January

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

In January, Erlin sees daytime highs around 18°C and nights near 16°C. Pack a windbreaker. About 6 days see rain.

a windbreaker

Sea temperature near Erlin 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 25 km away) is warmest in August at about 29°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
Apr24Warm
May26Warm
Jun28Warm
Jul29Tropical
Aug29Tropical
Sep28Warm
Oct26Warm
Nov25Warm
Dec22Refreshing

UV index in Erlin in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Erlin peaks around June 18 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJun 18UV 12Dec 20UV 5
UV index (midday)Level
Jan6High
Feb8Very high
Mar9Very high
Apr8Very high
May10Very high
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep9Very high
Oct7Very high
Nov7High
Dec5High

Air quality in Erlin 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 Erlin is worst in March — around 38 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (July, 21 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 2038 µg/m³Jul 2321 µg/m³
PM2.5 (µg/m³)Level
Jan30Moderate
Feb34Moderate
Mar38Poor
Apr37Poor
May31Moderate
Jun25Moderate
Jul21Moderate
Aug22Moderate
Sep26Moderate
Oct26Moderate
Nov26Moderate
Dec26Moderate
Location & terrain

Where is Erlin?

Erlin sits at 23.9°N, 120.4°E, 19 m above sea level, in Taiwan. The nearest listed city is Pitou, 11 km away.

Topography around Erlin

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

Within 3 km, the terrain around Erlin has only modest variations in elevation — a maximum elevation change of 18 m around an average of 12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 51 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,887 m.

The land around Erlin is covered by cropland (62%) and artificial surfaces (23%) within 3 km, cropland (42%) and water (28%) within 16 km, and trees (39%) and water (39%) within 80 km.

3 km
18 m
16 km
51 m
80 km
3,887 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Pitou 11 km · Xihu 13 km · Xiluo 15 km · Erlun 15 km · Tianwei 16 km · Beidou 16 km · Yongjing 18 km · Citong 21 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 Erlin (23.9005°, 120.3689°, 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).