Neihu weather in January

In January, Neihu sees average daytime highs of 17°C and overnight lows near 12°C, with 87 mm of rain across 14.1 wet days and about 10.6 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 16% 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 Neihu's 10th-clearest and 4th-windiest month. For the whole year in context, see Neihu's year-round climate.

Daytime high
17°
12th warmest
Overnight low
12°
1st coldest
Rainfall
87 mm
14.1 wet days
Daylight
10 h 36 min
6:45 AM – 5:21 PM
Cloud cover
75%
10th clearest
Wind
10 km/h
4th windiest
Solar energy
2.26 kWh/m²
Travel score
4.8
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 17°C through the month.

A typical January day in Neihu reaches about 17°C in the afternoon and slips back to 12°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 23°C. Set against its neighbours, January runs about 2°C cooler than December and about 1°C cooler than February.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11813
21812
31812
41812
51812
61812
71812
81812
91712
101712
111712
121712
131712
141712
151712
161712
171712
181712
191712
201712
211712
221711
231711
241711
251711
261711
271711
281711
291711
301711
311711

How January really feels in Neihu

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.

Neihu weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan17° / 12°8714.110.64.8
Feb18° / 12°951211.15.2
Mar21° / 14°10513.911.85.6
Apr24° / 17°13216.312.65.6
May27° / 21°20019.813.24.9
Jun30° / 23°24120.913.53.6
Jul31° / 25°22619.113.43.3
Aug31° / 25°30220.812.93.4
Sep29° / 23°25816.912.24.6
Oct25° / 20°21316.511.45.7
Nov22° / 17°13715.510.85.7
Dec19° / 14°1081510.55.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 10% of January, with mostly cloudy or overcast conditions the remaining 74%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
22971
32872
42872
52872
62872
72872
82872
92773
102674
112674
122674
132575
142674
152575
162575
172575
182575
192575
202575
212575
222575
232575
242575
252674
262674
272575
282575
292575
302674
312674

Chance of precipitation in January

Any precipitation

Neihu gets around 87 mm of rain over 14.1 wet days in January, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 48% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
143
243
343
444
544
644
745
845
946
1046
1147
1247
1347
1447
1547
1648
1748
1848
1948
2048
2148
2248
2348
2447
2547
2647
2747
2847
2946
3046
3145

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 64% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15730130
25730130
35730130
45730130
55829130
65829130
75829130
85829130
95729131
105928121
115928121
125928121
136027121
146127111
156127111
166326101
176326101
18652591
19662581
20662581
21672571
22692470
23702460
24702460
25712450
26712450
27712450
28712450
29712450
30712450
31702460

Wind in January

Winds average 10 km/h in January.

Across January, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2810calm
2910calm
3010calm
3110calm

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 6:43 AM to 6:42 AM, and sunset from 5:11 PM to 5:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.56:435:11
210.56:435:11
310.56:435:12
410.56:445:13
510.56:445:13
610.56:445:14
710.56:445:15
810.56:445:15
910.56:455:16
1010.56:455:17
1110.56:455:17
1210.66:455:18
1310.66:455:19
1410.66:455:19
1510.66:455:20
1610.66:455:21
1710.66:455:22
1810.66:455:22
1910.66:455:23
2010.76:455:24
2110.76:455:25
2210.76:445:25
2310.76:445:26
2410.76:445:27
2510.76:445:27
2610.76:445:28
2710.86:435:29
2810.86:435:30
2910.86:435:30
3010.86:435:31
3110.86:425:32

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.26 kWh/m².

For context, solar energy here swings from a low near 2.09 kWh/m² to a high of 5.66 kWh/m² in July across the year — January's 2.26 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
252.3Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.4Moderate
312.4Moderate
Planning a trip in January

Hazard calendar for Neihu

In seasonPeak

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

Neihu 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 Neihu?

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

4.8
Sightseeing
8th-best month of the year
1.3
Beach & pool
12th-best month of the year

January is a reasonable time to visit Neihu for sightseeing.

What to pack for Neihu in January

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

In January, Neihu sees daytime highs around 17°C and nights near 12°C. Pack rain gear. About 14 days see rain.

rain gear

Sea temperature near Neihu in January

The nearest coast averages about 19°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 22 km away) is warmest in August at about 29°C and coldest in February near 18°C.

It's comfortable for a long swim from Mar 19 to Dec 24 — about 9.2 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan19Cool
Feb18Cool
Mar20Cool
Apr23Refreshing
May26Warm
Jun27Warm
Jul29Tropical
Aug29Tropical
Sep28Warm
Oct25Warm
Nov23Refreshing
Dec21Refreshing

UV index in Neihu 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 Neihu 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 Neihu 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 Neihu is worst in April — around 52 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (October, 25 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateApr 1052 µg/m³Oct 1626 µg/m³
PM2.5 (µg/m³)Level
Jan38Poor
Feb43Poor
Mar51Poor
Apr52Poor
May44Poor
Jun41Poor
Jul32Moderate
Aug32Moderate
Sep30Moderate
Oct25Moderate
Nov32Moderate
Dec32Moderate
Location & terrain

Where is Neihu?

Neihu sits at 25.1°N, 121.6°E, 18 m above sea level, in Taiwan. The nearest listed city is Taipei, 7.0 km away.

Sanzhi

Topography around Neihu

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

Within 3 km, the terrain around Neihu has significant variations in elevation — a maximum elevation change of 461 m around an average of 82 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,105 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,602 m.

The land around Neihu is covered by trees (57%) and artificial surfaces (38%) within 3 km, trees (71%) and artificial surfaces (25%) within 16 km, and water (57%) and trees (35%) within 80 km.

3 km
461 m
16 km
1,105 m
80 km
3,602 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Taipei 7.0 km · Xizhi 7.0 km · New Taipei City 13 km · Banqiao 14 km · Keelung 16 km · Danshui 18 km · Shulin 20 km · Sanzhi 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 Neihu (25.0815°, 121.5881°, elevation 18 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).