Naka-niida weather in January

In January, Naka-niida sees average daytime highs of 3°C and overnight lows near -4°C, with 70 mm of precipitation across 13.3 wet days and about 9.6 hours of daylight. It is the 12th-warmest and 9th-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 14% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 18 min at the start of January to 10 hours by month's end. Set against the rest of the year, January is Naka-niida's 6th-clearest and 3rd-windiest month. For the whole year in context, see Naka-niida's year-round climate.

Daytime high
12th warmest
Overnight low
-4°
2nd coldest
Precipitation
70 mm
13.3 wet days
Daylight
9 h 36 min
6:58 AM – 4:33 PM
Cloud cover
65%
6th clearest
Wind
11 km/h
3rd windiest
Solar energy
2.42 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 Naka-niida reaches about 3°C in the afternoon and slips back to -4°C overnight — a 7°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 about 1°C cooler than February.

-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
14-3
24-3
33-3
43-3
53-3
63-3
73-3
83-3
93-3
103-4
113-4
123-4
133-4
143-4
153-4
163-4
173-4
183-4
193-4
203-4
213-4
223-4
233-4
243-4
253-4
263-4
273-4
283-4
293-4
303-4
313-4

How January really feels in Naka-niida

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.

Naka-niida weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°7013.312.99.60.0
Feb / -4°5310.79.710.50.0
Mar / -1°9012.46.811.71.2
Apr14° / 9512.41.5134.0
May19° / 10°10311.4014.15.9
Jun23° / 15°13012.9014.65.9
Jul26° / 19°19217.5014.45.3
Aug27° / 21°16615.8013.55.3
Sep24° / 17°15814.5012.35.8
Oct18° / 10°129110115.5
Nov12° / 6810.21.49.93.0
Dec / -1°6813.48.69.40.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 29% of January, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24456
34456
44456
54357
64456
74456
84456
94456
104456
114357
124357
134357
144357
154357
164357
174357
184357
194357
204357
214357
224357
234357
244357
254357
264258
274258
284258
294258
304357
314258

Chance of precipitation in January

Any precipitationSnow

Naka-niida gets around 70 mm of rain and snow over 13.3 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 42% and peaks near 46% on the wettest days, and about 13 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14639
24640
34641
44641
54642
64642
74542
84542
94542
104442
114442
124342
134342
144241
154241
164141
174140
184140
194040
204040
214040
224040
234140
244141
254141
264141
274142
284042
294042
304042
314042

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 11 km/h in January.

Across January, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in January

DaylightNight

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

Days grow by about 42 minutes over January. Sunrise moves from 6:59 AM to 6:50 AM, and sunset from 4:20 PM to 4:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.36:594:20
29.46:594:21
39.47:004:22
49.47:004:23
59.47:004:23
69.47:004:24
79.47:004:25
89.47:004:26
99.57:004:27
109.57:004:28
119.56:594:29
129.56:594:30
139.56:594:30
149.56:594:31
159.66:594:32
169.66:584:33
179.66:584:34
189.66:584:35
199.76:574:36
209.76:574:38
219.76:564:39
229.76:564:40
239.86:554:41
249.86:554:42
259.86:544:43
269.86:544:44
279.96:534:45
289.96:524:46
299.96:524:47
3010.06:514:48
3110.06:504:49

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.42 kWh/m².

For context, solar energy here swings from a low near 1.99 kWh/m² to a high of 5.29 kWh/m² in May across the year — January's 2.42 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.2Moderate
22.2Moderate
32.2Moderate
42.2Moderate
52.2Moderate
62.3Moderate
72.3Moderate
82.3Moderate
92.3Moderate
102.3Moderate
112.3Moderate
122.3Moderate
132.3Moderate
142.3Moderate
152.3Moderate
162.4Moderate
172.4Moderate
182.4Moderate
192.4Moderate
202.5Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.6Moderate
252.6Moderate
262.6Moderate
272.6Moderate
282.7Moderate
292.7Moderate
302.8Moderate
312.8Moderate
Planning a trip in January

Hazard calendar for Naka-niida

In seasonPeak

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

Naka-niida 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 Naka-niida?

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 Naka-niida.

What to pack for Naka-niida in January

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

In January, Naka-niida sees daytime highs around 3°C and nights near -4°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 13 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Naka-niida in January

The nearest coast averages about 11°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 50 km away) is warmest in August at about 23°C and coldest in March near 8°C.

It's comfortable for a long swim from Jul 10 to Oct 8 — about 3 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb9Bracing
Mar8Bracing
Apr10Bracing
May13Bracing
Jun17Cool
Jul21Refreshing
Aug23Refreshing
Sep22Refreshing
Oct19Cool
Nov16Cool
Dec14Bracing

UV index in Naka-niida 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 Naka-niida peaks around August 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 16UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Naka-niida 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 Naka-niida is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1621 µg/m³Dec 1710 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar20Moderate
Apr21Moderate
May20Moderate
Jun14Moderate
Jul12Good
Aug10Good
Sep10Good
Oct11Good
Nov11Good
Dec9Good
Location & terrain

Where is Naka-niida?

Naka-niida sits at 38.6°N, 140.9°E, 31 m above sea level, in Japan. The nearest listed city is Furukawa, 9.0 km away.

Topography around Naka-niida

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

Within 3 km, the terrain around Naka-niida has only modest variations in elevation — a maximum elevation change of 63 m around an average of 32 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 608 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,978 m.

The land around Naka-niida is covered by cropland (63%) within 3 km, trees (57%) and cropland (31%) within 16 km, and trees (64%) and water (20%) within 80 km.

3 km
63 m
16 km
608 m
80 km
1,978 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Furukawa 9.0 km · Ōsaki 11 km · Yoshioka 14 km · Kogota 17 km · Kogota-ekimae 19 km · Tomiya 20 km · Kurihara 24 km · Wakuya 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 Naka-niida (38.5686°, 140.8536°, elevation 31 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).