Shinagawa weather in January

In January, Shinagawa sees average daytime highs of 7°C and overnight lows near -0°C, with 71 mm of precipitation across 11.2 wet days and about 10 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 7°C through the month. The sky is clear or mostly clear about 21% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of January to 10 h 18 min by month's end. Set against the rest of the year, January is Shinagawa's 7th-clearest and 1st-windiest month. For the whole year in context, see Shinagawa's year-round climate.

Daytime high
12th warmest
Overnight low
-0°
1st coldest
Precipitation
71 mm
11.2 wet days
Daylight
10 hours
7:17 AM – 5:17 PM
Cloud cover
61%
7th clearest
Wind
8 km/h
1st windiest
Solar energy
2.72 kWh/m²
Travel score
0.8
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 7°C through the month.

A typical January day in Shinagawa reaches about 7°C in the afternoon and slips back to -0°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 3°C and 11°C. Set against its neighbours, January runs about 3°C cooler than December and about 1°C cooler than February.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
181
280
380
470
570
670
770
870
970
1070
1170
1270
1370
1470
1570
1670
1770
1870
1970
2070
2170
2270
236-1
246-1
256-1
266-1
276-1
286-1
297-1
307-1
317-1

How January really feels in Shinagawa

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 31 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
31
wind chill below the day's low

The story in January is cold — wind chill drags the overnight "feels like" below the raw low.

Shinagawa 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 daysSnow daysDaylight (hours)Travel score
Jan / -0°7111.25.6100.8
Feb / 8510.84.310.71.3
Mar12° / 12913.61.711.73.0
Apr18° / 14611.60.112.85.4
May22° / 13°17411.9013.76.3
Jun25° / 18°29717.1014.25.4
Jul29° / 22°27918.80144.4
Aug30° / 23°19517.2013.24.2
Sep26° / 19°23215012.25.7
Oct21° / 13°16810.5011.26.5
Nov15° / 929.6010.34.8
Dec10° / 8411.139.82.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 25% of January, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35446
45446
55446
65347
75149
85149
95050
104951
114852
124753
134654
144555
154555
164456
174357
184258
194258
204258
214258
224159
234159
244258
254258
264159
274258
284258
294258
304555
314555

Chance of precipitation in January

Any precipitationSnow

Shinagawa gets around 71 mm of rain and snow over 11.2 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 precipitation averages around 36% and peaks near 39% on the wettest days, and about 6 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13415
23415
33415
43315
53316
63316
73316
83416
93416
103416
113517
123517
133617
143618
153718
163819
173819
183920
193920
203920
213921
223921
233921
243921
253921
263921
273821
283821
293721
303720
313720

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 8 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 48 min at the start of January to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over January. Sunrise moves from 7:17 AM to 7:12 AM, and sunset from 5:05 PM to 5:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.87:175:05
29.87:175:06
39.87:175:07
49.87:185:07
59.87:185:08
69.87:185:09
79.97:185:10
89.97:185:10
99.97:185:11
109.97:185:12
119.97:185:13
129.97:185:14
139.97:185:15
1410.07:185:15
1510.07:185:16
1610.07:175:17
1710.07:175:18
1810.07:175:19
1910.17:175:20
2010.17:165:21
2110.17:165:22
2210.17:165:23
2310.17:155:23
2410.27:155:24
2510.27:155:25
2610.27:145:26
2710.27:145:27
2810.37:135:28
2910.37:135:29
3010.37:125:30
3110.37:125:31

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.72 kWh/m².

For context, solar energy here swings from a low near 2.43 kWh/m² to a high of 5.59 kWh/m² in May across the year — January's 2.72 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.6Moderate
32.6Moderate
42.6Moderate
52.6Moderate
62.6Moderate
72.6Moderate
82.6Moderate
92.6Moderate
102.6Moderate
112.6Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.6Moderate
162.7Moderate
172.7Moderate
182.7Moderate
192.7Moderate
202.7Moderate
212.8Moderate
222.8Moderate
232.8Moderate
242.8Moderate
252.9Moderate
262.9Moderate
272.9Moderate
283.0Moderate
293.0Moderate
303.0Moderate
313.0Moderate
Planning a trip in January

Hazard calendar for Shinagawa

In seasonPeak

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

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

Shinagawa's rainy season runs April–October, when most of the year's rain falls.

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

Is January a good time to visit Shinagawa?

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

0.8
Sightseeing
12th-best month of the year
0.0
Beach & pool
11th-best month of the year

January is a weaker month for outdoor sightseeing in Shinagawa.

What to pack for Shinagawa in January

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

In January, Shinagawa sees daytime highs around 7°C and nights near -0°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 11 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Shinagawa in January

The nearest coast averages about 15°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 35 km away) is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 11 to Nov 19 — about 5.3 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb14Bracing
Mar14Bracing
Apr15Cool
May17Cool
Jun21Refreshing
Jul24Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec18Cool

UV index in Shinagawa in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Shinagawa peaks around July 12 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJul 12UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7Very high
May9Very high
Jun10Extreme
Jul11Extreme
Aug10Very high
Sep10Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Shinagawa 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 Shinagawa is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1523 µg/m³Oct 1711 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar21Moderate
Apr23Moderate
May21Moderate
Jun19Moderate
Jul15Moderate
Aug15Moderate
Sep12Moderate
Oct11Good
Nov12Good
Dec11Good
Location & terrain

Where is Shinagawa?

Shinagawa sits at 33.6°N, 133.0°E, 426 m above sea level, in Japan. The nearest listed city is Tōon, 21 km away.

Topography around Shinagawa

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

Within 3 km, the terrain around Shinagawa has large variations in elevation — a maximum elevation change of 684 m around an average of 640 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,821 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,895 m.

The land around Shinagawa is covered by trees (97%) within 3 km, trees (97%) within 16 km, and trees (52%) and water (43%) within 80 km.

3 km
684 m
16 km
1,821 m
80 km
1,895 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Tōon 21 km · Haramachi 25 km · Iyo 31 km · Matsuyama 32 km · Masaki-chō 32 km · Uchiko 35 km · Saijō 35 km · Susaki 38 km

Japan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
100 V · 50 / 60 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$35,951
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.2
per 100k, 2023
Road deaths
3.6
per 100k/yr, 2019
Income group
High
World Bank
English
Very low
EF EPI 446
Religion
Shintoism 49%Buddhism 46%other 4%Christianity 1%

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 Shinagawa (33.6363°, 133.0057°, elevation 426 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).