Ninomiya weather in January

In January, Ninomiya sees average daytime highs of 9°C and overnight lows near 4°C, with 98 mm of precipitation across 10 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 47% 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 Ninomiya's 2nd-clearest and 7th-windiest month. For the whole year in context, see Ninomiya's year-round climate.

Daytime high
12th warmest
Overnight low
2nd coldest
Precipitation
98 mm
10 wet days
Daylight
9 h 54 min
6:56 AM – 4:48 PM
Cloud cover
47%
2nd clearest
Wind
13 km/h
7th windiest
Solar energy
2.72 kWh/m²
Travel score
1.7
out of 10

Ninomiya is town in Naka district, Kanagawa prefecture, Japan.

Density
3,036/km²
people per km²
Founded
1935

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 9°C through the month.

A typical January day in Ninomiya reaches about 9°C in the afternoon and slips back to 4°C overnight — a 4°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 3°C cooler than December and on par with February.

10°15°151015202531
Avg high (°C)Avg low (°C)
195
295
395
495
595
695
795
895
995
1095
1195
1295
1395
1495
1594
1684
1784
1884
1984
2084
2184
2284
2384
2484
2584
2684
2784
2884
2984
3084
3184

Ninomiya 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 / 98102.39.91.7
Feb / 10711.32.710.71.7
Mar12° / 18616.31.611.72.6
Apr15° / 11°17614.40.312.94.2
May19° / 15°18113.6013.85.5
Jun22° / 19°23115.9014.35.3
Jul25° / 22°20014.7014.15.8
Aug27° / 24°15413.5013.36.0
Sep24° / 21°24115.5012.25.8
Oct20° / 17°26715.5011.15.5
Nov16° / 12°14113.1010.14.5
Dec11° / 9410.90.39.72.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% 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 37%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17129
27129
37129
47129
57030
67030
76931
86931
96832
106733
116634
126535
136337
146238
156139
166040
175941
185842
195842
205743
215743
225743
235743
245842
255842
265842
275842
285941
295941
306040
316040

Chance of precipitation in January

Any precipitationSnow

Ninomiya gets around 98 mm of rain and snow over 10 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 33% and peaks near 36% on the wettest days, and about 2 days bring snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1283
2283
3284
4284
5294
6294
7295
8305
9305
10316
11326
12327
13337
14347
15348
16348
17358
18359
19359
20369
21369
223610
233610
243510
253510
263510
273510
283410
293410
303410
313410

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 13 km/h in January.

Across January, daily wind ranges from about 13 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light 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 6:56 AM to 6:50 AM, and sunset from 4:36 PM to 5:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.76:564:36
29.76:574:37
39.76:574:37
49.76:574:38
59.76:574:39
69.76:574:40
79.76:574:40
89.76:574:41
99.76:574:42
109.86:574:43
119.86:574:44
129.86:574:45
139.86:574:45
149.86:574:46
159.86:574:47
169.96:564:48
179.96:564:49
189.96:564:50
199.96:564:51
209.96:554:52
2110.06:554:53
2210.06:554:54
2310.06:544:55
2410.06:544:56
2510.16:534:57
2610.16:534:58
2710.16:524:59
2810.16:525:00
2910.26:515:01
3010.26:505:02
3110.26:505:03

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.72 kWh/m².

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 5.18 kWh/m² in May across the year — January's 2.72 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.6Moderate
32.6Moderate
42.6Moderate
52.6Moderate
62.6Moderate
72.6Moderate
82.6Moderate
92.6Moderate
102.6Moderate
112.6Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.6Moderate
162.6Moderate
172.6Moderate
182.6Moderate
192.6Moderate
202.7Moderate
212.7Moderate
222.7Moderate
232.8Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.9Moderate
282.9Moderate
292.9Moderate
303.0Moderate
313.0Moderate
Planning a trip in January

Hazard calendar for Ninomiya

In seasonPeak

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

Ninomiya 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 Ninomiya?

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

1.7
Sightseeing
11th-best month of the year
0.0
Beach & pool
11th-best month of the year

January is a weaker month for outdoor sightseeing in Ninomiya.

What to pack for Ninomiya in January

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

In January, Ninomiya sees daytime highs around 9°C and nights near 4°C. Pack a warm layer. Worth having: rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Ninomiya 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 22 km away) is warmest in August at about 26°C and coldest in February near 15°C.

It's comfortable for a long swim from May 31 to Nov 26 — about 5.9 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar16Cool
Apr17Cool
May19Cool
Jun21Refreshing
Jul24Refreshing
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov21Refreshing
Dec18Cool

UV index in Ninomiya 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 Ninomiya peaks around July 20 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 20UV 10Dec 23UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May9Very high
Jun9Very high
Jul10Extreme
Aug10Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Ninomiya 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 Ninomiya is worst in April — around 26 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1525 µg/m³Dec 1612 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb25Moderate
Mar23Moderate
Apr26Moderate
May21Moderate
Jun18Moderate
Jul13Moderate
Aug12Moderate
Sep12Moderate
Oct14Moderate
Nov14Moderate
Dec12Good
Location & terrain

Where is Ninomiya?

Ninomiya sits at 35.3°N, 139.3°E, 24 m above sea level, in Japan. The nearest listed city is Ōiso, 6.0 km away.

Topography around Ninomiya

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

Within 3 km, the terrain around Ninomiya has only modest variations in elevation — a maximum elevation change of 175 m around an average of 37 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,245 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,737 m.

The land around Ninomiya is covered by trees (37%), water (33%) and artificial surfaces (26%) within 3 km, water (42%), trees (29%) and artificial surfaces (22%) within 16 km, and trees (43%) and water (35%) within 80 km.

3 km
175 m
16 km
1,245 m
80 km
3,737 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Ōiso 6.0 km · Hiratsuka 8.0 km · Hadano 8.0 km · Kamiōi 9.0 km · Odawara 10 km · Isehara 12 km · Kanaishima 13 km · Minamiashigara 13 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 Ninomiya (35.3015°, 139.2558°, elevation 24 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).