Shizuoka weather in January

In January, Shizuoka sees average daytime highs of 9°C and overnight lows near 4°C, with 95 mm of precipitation across 8.4 wet days and about 9.9 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 9°C through the month. The sky is clear or mostly clear about 59% 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 Shizuoka's 2nd-clearest and 1st-windiest month. For the whole year in context, see Shizuoka's year-round climate.

Daytime high
12th warmest
Overnight low
2nd coldest
Precipitation
95 mm
8.4 wet days
Daylight
9 h 54 min
6:59 AM – 4:52 PM
Cloud cover
39%
2nd clearest
Wind
12 km/h
1st windiest
Solar energy
2.99 kWh/m²
Travel score
2.1
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 9°C through the month.

A typical January day in Shizuoka reaches about 9°C in the afternoon and slips back to 4°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 6°C and 12°C. Set against its neighbours, January runs about 2°C cooler than December and on par with February.

10°15°151015202531
Avg high (°C)Avg low (°C)
1105
2105
3105
4105
5105
6105
7105
8105
995
1095
1195
1295
1395
1495
1594
1694
1794
1894
1994
2094
2194
2294
2394
2494
2594
2694
2794
2894
2994
3094
3194

Shizuoka weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 958.40.49.92.1
Feb10° / 1189.30.710.72.2
Mar12° / 21114.40.211.73.0
Apr16° / 11°22513.6012.94.6
May20° / 15°23413.9013.85.6
Jun23° / 19°29117.2014.35.3
Jul26° / 23°32318.5014.15.2
Aug28° / 24°19116.3013.35.5
Sep25° / 21°27716.5012.25.7
Oct21° / 17°24714.1011.15.9
Nov16° / 12°15011.4010.25.1
Dec12° / 928.30.19.73.3

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17624
27624
37624
47624
57525
67525
77426
87327
97327
107228
117030
126931
136832
146733
156733
166634
176535
186535
196535
206535
216535
226535
236535
246634
256634
266733
276832
286733
296832
306832
316931

Chance of precipitation in January

Any precipitationSnow

Shizuoka gets around 95 mm of rain and snow over 8.4 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 28% and peaks near 31% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1221
2221
3221
4231
5231
6241
7241
8251
9261
10271
11282
12292
13302
14302
15312
16312
17312
18312
19312
20312
21312
22312
23302
24302
25292
26282
27282
28272
29272
30272
31272

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 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 6:59 AM to 6:53 AM, and sunset from 4:40 PM to 5:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.76:594:40
29.76:594:41
39.76:594:42
49.77:004:42
59.77:004:43
69.77:004:44
79.77:004:45
89.87:004:45
99.87:004:46
109.87:004:47
119.87:004:48
129.87:004:49
139.87:004:50
149.96:594:51
159.96:594:52
169.96:594:52
179.96:594:53
189.96:594:54
199.96:584:55
2010.06:584:56
2110.06:584:57
2210.06:574:58
2310.06:574:59
2410.16:565:00
2510.16:565:01
2610.16:565:02
2710.16:555:03
2810.26:545:04
2910.26:545:05
3010.26:535:06
3110.26:535:07

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.99 kWh/m².

For context, solar energy here swings from a low near 2.59 kWh/m² to a high of 5.48 kWh/m² in May across the year — January's 2.99 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.9Moderate
22.9Moderate
32.9Moderate
42.9Moderate
52.9Moderate
62.9Moderate
72.9Moderate
82.9Moderate
92.9Moderate
102.9Moderate
112.9Moderate
122.9Moderate
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 Shizuoka

In seasonPeak

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

Shizuoka 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 Shizuoka?

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

2.1
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 Shizuoka.

What to pack for Shizuoka in January

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

In January, Shizuoka sees daytime highs around 9°C and nights near 4°C. Pack a warm layer. Worth having: rain gear. About 8 days see rain.

a warm layerrain gear

Sea temperature near Shizuoka 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 offshore is warmest in August at about 27°C and coldest in February near 15°C.

It's comfortable for a long swim from May 28 to Nov 26 — about 6 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar16Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul24Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov21Refreshing
Dec18Cool

UV index in Shizuoka 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 Shizuoka peaks around July 22 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 22UV 10Dec 23UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May9Very high
Jun10Very high
Jul10Extreme
Aug10Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Shizuoka 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 Shizuoka is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1623 µg/m³Dec 1610 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb20Moderate
Mar20Moderate
Apr23Moderate
May20Moderate
Jun17Moderate
Jul13Moderate
Aug12Good
Sep12Good
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is Shizuoka?

Shizuoka sits at 35.0°N, 138.4°E, 23 m above sea level, in Japan. The nearest listed city is Yaizu, 14 km away.

Topography around Shizuoka

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

Within 3 km, the terrain around Shizuoka has only modest variations in elevation — a maximum elevation change of 213 m around an average of 28 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,098 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,736 m.

The land around Shizuoka is covered by artificial surfaces (75%) within 3 km, trees (51%) and water (29%) within 16 km, and trees (55%) and water (35%) within 80 km.

3 km
213 m
16 km
1,098 m
80 km
3,736 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Yaizu 14 km · Fujieda 17 km · Shimada 26 km · Sumiyoshi 29 km · Kanaya 30 km · Fujinomiya 34 km · Fuji 34 km · Maruobara 35 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 Shizuoka (34.9833°, 138.3833°, 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).