Shinshiro weather in January

In January, Shinshiro sees average daytime highs of 8°C and overnight lows near 0°C, with 70 mm of precipitation across 6.7 wet days and about 9.9 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 8°C through the month. The sky is clear or mostly clear about 55% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of January to 10 h 12 min by month's end. Set against the rest of the year, January is Shinshiro's 2nd-clearest and 1st-windiest month. For the whole year in context, see Shinshiro's year-round climate.

Daytime high
12th warmest
Overnight low
1st coldest
Precipitation
70 mm
6.7 wet days
Daylight
9 h 54 min
7:02 AM – 4:56 PM
Cloud cover
43%
2nd clearest
Wind
12 km/h
1st windiest
Solar energy
2.97 kWh/m²
Travel score
1.3
out of 10

Shinshiro is city in Aichi prefecture, Japan.

Founded
1958

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 8°C through the month.

A typical January day in Shinshiro reaches about 8°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 4°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
281
381
481
581
681
781
880
980
1080
1180
1280
1380
1480
1580
1680
1770
1870
1970
2070
2170
2270
2370
2470
2570
2670
2770
2870
2970
3070
3170

How January really feels in Shinshiro

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.

Shinshiro 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 / 706.71.19.91.3
Feb / 897.41.210.71.8
Mar12° / 16011.70.311.73.3
Apr18° / 17811.9012.95.3
May22° / 13°19713.1013.86.1
Jun25° / 18°28017.9014.35.2
Jul29° / 22°32720.4014.14.2
Aug30° / 22°20118.7013.34.1
Sep26° / 19°26216.5012.25.4
Oct21° / 13°21913.3011.16.1
Nov16° / 1188.7010.25.1
Dec10° / 7370.39.72.6

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 16% of January, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17921
27921
37822
47822
57822
67723
77723
87624
97525
107426
117327
127228
137129
147030
156931
166931
176832
186832
196832
206733
216634
226733
236733
246733
256733
266733
276832
286832
296931
306931
316931

Chance of precipitation in January

Any precipitationSnow

Shinshiro gets around 70 mm of rain and snow over 6.7 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 22% and peaks near 24% on the wettest days, and about 1 day brings snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1203
2203
3193
4193
5193
6193
7203
8203
9213
10213
11223
12233
13233
14233
15243
16243
17243
18244
19244
20244
21244
22244
23234
24235
25225
26225
27225
28215
29215
30215
31215

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 12 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 42 min at the start of January to 10 h 12 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 7:02 AM to 6:56 AM, and sunset from 4:44 PM to 5:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:024:44
29.77:034:45
39.77:034:45
49.77:034:46
59.77:034:47
69.77:034:48
79.87:034:48
89.87:034:49
99.87:034:50
109.87:034:51
119.87:034:52
129.87:034:53
139.87:034:53
149.97:034:54
159.97:034:55
169.97:024:56
179.97:024:57
189.97:024:58
1910.07:024:59
2010.07:015:00
2110.07:015:01
2210.07:015:02
2310.07:005:03
2410.17:005:04
2510.16:595:05
2610.16:595:06
2710.16:585:07
2810.26:585:08
2910.26:575:09
3010.26:575:10
3110.26:565:11

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.97 kWh/m².

For context, solar energy here swings from a low near 2.58 kWh/m² to a high of 5.39 kWh/m² in May across the year — January's 2.97 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.8Moderate
22.8Moderate
32.8Moderate
42.8Moderate
52.8Moderate
62.8Moderate
72.8Moderate
82.8Moderate
92.8Moderate
102.8Moderate
112.8Moderate
122.8Moderate
132.9Moderate
142.9Moderate
152.9Moderate
162.9Moderate
172.9Moderate
182.9Moderate
192.9Moderate
203.0Moderate
213.0Moderate
223.0Moderate
233.0Moderate
243.1Moderate
253.1Moderate
263.1Moderate
273.2Moderate
283.2Moderate
293.2Moderate
303.3Moderate
313.3Moderate
Planning a trip in January

Hazard calendar for Shinshiro

In seasonPeak

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

Shinshiro 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 Shinshiro?

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

1.3
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 Shinshiro.

What to pack for Shinshiro in January

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

In January, Shinshiro sees daytime highs around 8°C and nights near 0°C. Pack a warm layer. Worth having: a heavy coat. About 7 days see rain.

a warm layera heavy coat

Sea temperature near Shinshiro in January

The nearest coast averages about 16°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 33 km away) is warmest in August at about 27°C and coldest in February near 16°C.

It's comfortable for a long swim from May 26 to Nov 26 — about 6.1 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb16Cool
Mar16Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov21Refreshing
Dec18Cool

UV index in Shinshiro in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Shinshiro peaks around July 15 at about 10 (very high) — 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 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 15UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May9Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Shinshiro 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 Shinshiro is worst in April — around 22 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1322 µg/m³Dec 1813 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar21Moderate
Apr22Moderate
May21Moderate
Jun19Moderate
Jul15Moderate
Aug14Moderate
Sep14Moderate
Oct15Moderate
Nov15Moderate
Dec13Moderate
Location & terrain

Where is Shinshiro?

Shinshiro sits at 34.9°N, 137.5°E, 48 m above sea level, in Japan. The nearest listed city is Toyokawa, 13 km away.

Topography around Shinshiro

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

Within 3 km, the terrain around Shinshiro has significant variations in elevation — a maximum elevation change of 480 m around an average of 103 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 894 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,775 m.

The land around Shinshiro is covered by trees (56%) and artificial surfaces (23%) within 3 km, trees (82%) within 16 km, and trees (49%) and water (33%) within 80 km.

3 km
480 m
16 km
894 m
80 km
2,775 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Toyokawa 13 km · Kozakai-chō 17 km · Toyohashi 18 km · Kosai 22 km · Arai 25 km · Gamagōri 25 km · Hamakita 28 km · Kōta 30 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 Shinshiro (34.9°, 137.5°, elevation 48 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).