Shin’ichi weather in January

In January, Shin’ichi sees average daytime highs of 10°C and overnight lows near 3°C, with 43 mm of precipitation across 5.7 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 10°C through the month. The sky is clear or mostly clear about 26% 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 18 min by month's end. Set against the rest of the year, January is Shin’ichi's 4th-clearest and 1st-windiest month. For the whole year in context, see Shin’ichi's year-round climate.

Daytime high
10°
12th warmest
Overnight low
1st coldest
Precipitation
43 mm
5.7 wet days
Daylight
9 h 54 min
7:19 AM – 5:14 PM
Cloud cover
59%
4th clearest
Wind
12 km/h
1st windiest
Solar energy
2.53 kWh/m²
Travel score
2.3
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 10°C through the month.

A typical January day in Shin’ichi reaches about 10°C in the afternoon and slips back to 3°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 6°C and 13°C. Set against its neighbours, January runs about 2°C cooler than December and about 1°C cooler than February.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
1103
2103
3103
4103
5103
6103
7103
8103
9103
10103
11103
12103
13103
14103
15103
1693
1792
1892
1992
2092
2192
2292
2392
2492
2592
2692
2792
2892
2992
3092
3192

How January really feels in Shin’ichi

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 29 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
29
wind chill below the day's low

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

Shin’ichi 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
Jan10° / 435.70.79.92.3
Feb11° / 5371.110.72.6
Mar14° / 929.70.411.74.1
Apr19° / 10°1079.6012.86.1
May24° / 15°12410013.86.8
Jun26° / 20°18212014.35.9
Jul30° / 24°18913.6014.14.3
Aug32° / 25°10710.9013.33.8
Sep28° / 21°14510.7012.25.6
Oct23° / 15°1057.3011.17.3
Nov17° / 556.1010.26.1
Dec12° / 475.60.29.73.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 28% of January, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26337
36238
46238
56139
66040
76040
85941
95842
105743
115644
125545
135545
145446
155347
165248
175248
185050
195050
205050
215050
225050
234951
244951
254951
265050
275050
285149
295149
305149
315050

Chance of precipitation in January

Any precipitationSnow

Shin’ichi gets around 43 mm of rain and snow over 5.7 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 19% and peaks near 22% on the wettest days, and about 1 day brings snow. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1152
2152
3152
4151
5151
6151
7151
8151
9161
10161
11171
12172
13182
14182
15182
16192
17192
18202
19203
20203
21213
22213
23213
24224
25224
26224
27224
28224
29224
30224
31224

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
3112calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 42 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 36 minutes over January. Sunrise moves from 7:18 AM to 7:12 AM, and sunset from 5:02 PM to 5:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:185:02
29.77:195:02
39.77:195:03
49.77:195:04
59.87:195:05
69.87:195:05
79.87:195:06
89.87:195:07
99.87:195:08
109.87:195:09
119.87:195:09
129.97:195:10
139.97:195:11
149.97:195:12
159.97:195:13
169.97:195:14
179.97:185:15
1810.07:185:16
1910.07:185:17
2010.07:175:18
2110.07:175:19
2210.07:175:19
2310.17:165:20
2410.17:165:21
2510.17:165:22
2610.17:155:23
2710.27:155:24
2810.27:145:25
2910.27:135:26
3010.27:135:27
3110.37:125:28

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.53 kWh/m².

For context, solar energy here swings from a low near 2.26 kWh/m² to a high of 5.52 kWh/m² in May across the year — January's 2.53 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.4Moderate
32.4Moderate
42.4Moderate
52.4Moderate
62.4Moderate
72.4Moderate
82.4Moderate
92.4Moderate
102.4Moderate
112.4Moderate
122.4Moderate
132.4Moderate
142.5Moderate
152.5Moderate
162.5Moderate
172.5Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.6Moderate
222.6Moderate
232.6Moderate
242.6Moderate
252.7Moderate
262.7Moderate
272.7Moderate
282.7Moderate
292.8Moderate
302.8Moderate
312.8Moderate
Planning a trip in January

Hazard calendar for Shin’ichi

In seasonPeak

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

Shin’ichi 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 Shin’ichi?

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

2.3
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 Shin’ichi.

What to pack for Shin’ichi in January

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

In January, Shin’ichi sees daytime highs around 10°C and nights near 3°C. Pack a warm layer. About 6 days see rain.

a warm layer

Sea temperature near Shin’ichi in January

The nearest coast averages about 14°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 27°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 3 to Nov 12 — about 5.4 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep27Warm
Oct23Refreshing
Nov20Cool
Dec16Cool

UV index in Shin’ichi 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 Shin’ichi peaks around July 15 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 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJul 15UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7Very high
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Shin’ichi 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 Shin’ichi is worst in April — around 24 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1324 µg/m³Dec 1414 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb19Moderate
Mar23Moderate
Apr24Moderate
May22Moderate
Jun20Moderate
Jul17Moderate
Aug17Moderate
Sep16Moderate
Oct14Moderate
Nov15Moderate
Dec14Moderate
Location & terrain

Where is Shin’ichi?

Shin’ichi sits at 34.6°N, 133.3°E, 23 m above sea level, in Japan. The nearest listed city is Fuchūchō, 4.0 km away.

Topography around Shin’ichi

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

Within 3 km, the terrain around Shin’ichi has only modest variations in elevation — a maximum elevation change of 215 m around an average of 68 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 740 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,845 m.

The land around Shin’ichi is covered by trees (55%) and artificial surfaces (33%) within 3 km, trees (75%) within 16 km, and trees (66%) and water (22%) within 80 km.

3 km
215 m
16 km
740 m
80 km
1,845 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Fuchūchō 4.0 km · Fukuyama 12 km · Kannabechō-yahiro 13 km · Onomichi 17 km · Ibara 18 km · Kōzan 21 km · Kasaoka 22 km · Mihara 25 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 Shin’ichi (34.5554°, 133.273°, elevation 23 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).