Myoko weather in January

In January, Myoko sees average daytime highs of 3°C and overnight lows near -3°C, with 242 mm of precipitation across 25.4 wet days and about 9.7 hours of daylight. It is the 12th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 3°C through the month. The sky is clear or mostly clear about 7% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 30 min at the start of January to 10 h 06 min by month's end. Set against the rest of the year, January is Myoko's 10th-clearest and 2nd-windiest month. For the whole year in context, see Myoko's year-round climate.

Daytime high
12th warmest
Overnight low
-3°
1st coldest
Precipitation
242 mm
25.4 wet days
Daylight
9 h 42 min
7:05 AM – 4:48 PM
Cloud cover
73%
10th clearest
Wind
8 km/h
2nd windiest
Solar energy
2.35 kWh/m²
Travel score
0.0
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 3°C through the month.

A typical January day in Myoko reaches about 3°C in the afternoon and slips back to -3°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between -1°C and 6°C. Set against its neighbours, January runs about 3°C cooler than December and on par with February.

-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
13-2
23-3
33-3
43-3
53-3
63-3
73-3
83-3
93-3
103-3
113-3
123-3
133-3
142-3
152-3
162-3
172-3
182-3
192-3
202-3
212-3
222-3
232-3
242-3
252-3
262-3
272-3
282-3
292-3
302-3
312-3

How January really feels in Myoko

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.

Myoko weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°24225.423.59.70.0
Feb / -3°17920.918.410.60.0
Mar / -1°1622013.311.70.6
Apr13° / 11714.82.712.93.4
May19° / 10°130140145.6
Jun23° / 16°16616.5014.55.4
Jul26° / 20°24921.1014.34.8
Aug28° / 21°19119.7013.44.8
Sep24° / 17°20417.2012.35.4
Oct18° / 11°18816.40114.9
Nov12° / 16618.23.4102.5
Dec / -1°2272315.69.50.3

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 15% of January, with mostly cloudy or overcast conditions the remaining 78%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12674
22674
32674
42476
52476
62476
72377
82377
92377
102377
112377
122377
132278
142179
152179
162179
172179
182179
192179
202179
212179
222179
232179
242179
252179
262278
272278
282278
292377
302377
312377

Chance of precipitation in January

Any precipitationSnow

Myoko gets around 242 mm of rain and snow over 25.4 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 81% and peaks near 82% on the wettest days, and about 24 days bring snow.

0%20%40%60%80%151015202531
Rain chance (%)Snow chance (%)
17969
28070
38071
48172
58173
68173
78173
88274
98274
108274
118274
128275
138275
148175
158175
168175
178175
188176
198176
208176
218276
228277
238277
248277
258277
268277
278277
288277
298276
308276
318175

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.

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 30 min at the start of January to 10 h 06 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 7:05 AM to 6:57 AM, and sunset from 4:35 PM to 5:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.57:054:35
29.57:054:36
39.57:064:37
49.57:064:37
59.57:064:38
69.67:064:39
79.67:064:40
89.67:064:41
99.67:064:41
109.67:064:42
119.67:064:43
129.67:054:44
139.77:054:45
149.77:054:46
159.77:054:47
169.77:054:48
179.77:044:49
189.87:044:50
199.87:044:51
209.87:034:52
219.87:034:53
229.97:034:54
239.97:024:55
249.97:024:56
259.97:014:57
2610.07:014:58
2710.07:004:59
2810.06:595:00
2910.06:595:01
3010.16:585:02
3110.16:575:03

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.35 kWh/m².

For context, solar energy here swings from a low near 2.02 kWh/m² to a high of 5.68 kWh/m² in May across the year — January's 2.35 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.1Moderate
22.2Moderate
32.2Moderate
42.2Moderate
52.2Moderate
62.2Moderate
72.2Moderate
82.2Moderate
92.2Moderate
102.2Moderate
112.2Moderate
122.2Moderate
132.3Moderate
142.3Moderate
152.3Moderate
162.3Moderate
172.3Moderate
182.4Moderate
192.4Moderate
202.4Moderate
212.4Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.5Moderate
262.6Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.7Moderate
312.7Moderate
Planning a trip in January

Hazard calendar for Myoko

In seasonPeak

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

Myoko 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 Myoko?

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

0.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
9th-best month of the year

January is a weaker month for outdoor sightseeing in Myoko.

What to pack for Myoko in January

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

In January, Myoko sees daytime highs around 3°C and nights near -3°C. Pack a warm layer, a heavy coat and rain gear. About 25 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Myoko in January

The nearest coast averages about 13°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 16 km away) is warmest in August at about 27°C and coldest in March near 10°C.

It's comfortable for a long swim from Jun 20 to Nov 1 — about 4.4 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb11Bracing
Mar10Bracing
Apr11Bracing
May15Bracing
Jun20Cool
Jul23Refreshing
Aug27Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec15Cool

UV index in Myoko in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Myoko peaks around August 12 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 12UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr7High
May8Very high
Jun9Very high
Jul9Very high
Aug10Very high
Sep9Very high
Oct5High
Nov3Moderate
Dec2Moderate

Air quality in Myoko 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 Myoko is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1721 µg/m³Dec 1510 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar20Moderate
Apr21Moderate
May20Moderate
Jun18Moderate
Jul15Moderate
Aug13Moderate
Sep12Good
Oct11Good
Nov11Good
Dec10Good
Location & terrain

Where is Myoko?

Myoko sits at 37.0°N, 138.3°E, 79 m above sea level, in Japan. The nearest listed city is Arai, 4.0 km away.

Topography around Myoko

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

Within 3 km, the terrain around Myoko has significant variations in elevation — a maximum elevation change of 317 m around an average of 100 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,556 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,978 m.

The land around Myoko is covered by trees (39%), cropland (34%) and artificial surfaces (20%) within 3 km, trees (74%) within 16 km, and trees (60%) and water (29%) within 80 km.

3 km
317 m
16 km
1,556 m
80 km
2,978 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Arai 4.0 km · Jōetsu 14 km · Iiyama 22 km · Nakano 32 km · Itoigawa 36 km · Suzaka 42 km · Nagano 42 km · Kashiwazaki 46 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 Myoko (37.0253°, 138.2556°, elevation 79 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).