Nikaho weather in December

In December, Nikaho sees average daytime highs of 5°C and overnight lows near 1°C, with 184 mm of precipitation across 24.1 wet days and about 9.3 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 8°C in the first days to 4°C by the end. The sky is clear or mostly clear about 4% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 24 min at the start of December to 9 h 18 min by month's end. Set against the rest of the year, December is Nikaho's 11th-clearest and 2nd-windiest month. For the whole year in context, see Nikaho's year-round climate.

Daytime high
10th warmest
Overnight low
4th coldest
Precipitation
184 mm
24.1 wet days
Daylight
9 h 12 min
6:59 AM – 4:14 PM
Cloud cover
76%
11th clearest
Wind
14 km/h
2nd windiest
Solar energy
1.62 kWh/m²
Travel score
0.2
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 8°C in the first days to 4°C by the end.

A typical December day in Nikaho reaches about 5°C in the afternoon and slips back to 1°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 1°C and 10°C. Set against its neighbours, December runs about 6°C cooler than November and about 3°C warmer than January.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
183
283
383
473
572
672
772
872
962
1062
1161
1261
1361
1451
1551
1651
1751
1851
1951
2050
2150
2250
2340
2440
2540
2640
2740
2840
2940
3040
3140

How December really feels in Nikaho

Once humidity and wind are folded in, December 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 December is cold — wind chill drags the overnight "feels like" below the raw low.

Nikaho weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°15924.822.69.60.0
Feb / -1°11720.81810.50.0
Mar / 12819.71111.70.6
Apr13° / 114151.7133.1
May18° / 11°12313.9014.15.3
Jun22° / 16°13713014.76.0
Jul26° / 20°22417.7014.55.4
Aug28° / 22°20416.6013.55.2
Sep24° / 18°18016012.35.6
Oct18° / 12°17115.90114.9
Nov11° / 17319.82.89.82.2
Dec / 18424.115.29.30.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12476
22476
32476
42377
52278
62278
72278
82179
92080
102080
111981
121981
131981
141981
151981
161981
171981
181981
191981
201981
212080
222080
232080
242080
251882
261882
271783
281783
291783
301783
311783

Chance of precipitation in December

Any precipitationSnow

Nikaho gets around 184 mm of rain and snow over 24.1 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 78% and peaks near 83% on the wettest days, and about 15 days bring snow. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)Snow chance (%)
17127
27228
37330
47332
57434
67536
77538
87640
97742
107744
117845
127847
137848
147849
157950
167950
177951
187952
197953
207954
217955
228056
238056
248057
258158
268159
278161
288262
298263
308364
318366

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December 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 December

Winds average 14 km/h in December.

Across December, daily wind ranges from about 13 km/h on the calmest days to 15 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
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 24 min at the start of December to 9 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:47 AM to 7:05 AM, and sunset from 4:13 PM to 4:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.46:474:13
29.46:484:13
39.46:494:13
49.46:504:13
59.46:514:13
69.46:514:13
79.36:524:13
89.36:534:13
99.36:544:13
109.36:554:13
119.36:554:13
129.36:564:13
139.36:574:13
149.36:584:13
159.36:584:14
169.26:594:14
179.27:004:14
189.27:004:15
199.27:014:15
209.27:014:15
219.27:024:16
229.27:024:16
239.27:034:17
249.27:034:17
259.27:044:18
269.27:044:18
279.27:044:19
289.27:054:19
299.37:054:20
309.37:054:21
319.37:054:22

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.62 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.62 kWh/m² to a high of 5.52 kWh/m² in June across the year — December's 1.62 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.7Dim
21.6Dim
31.6Dim
41.6Dim
51.6Dim
61.6Dim
71.6Dim
81.6Dim
91.6Dim
101.6Dim
111.6Dim
121.6Dim
131.6Dim
141.6Dim
151.6Dim
161.6Dim
171.6Dim
181.6Dim
191.6Dim
201.6Dim
211.7Dim
221.7Dim
231.7Dim
241.7Dim
251.7Dim
261.7Dim
271.8Dim
281.8Dim
291.8Dim
301.8Dim
311.8Dim
Planning a trip in December

Hazard calendar for Nikaho

In seasonPeak

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

Nikaho 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 December a good time to visit Nikaho?

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

0.2
Sightseeing
10th-best month of the year
0.0
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Nikaho.

What to pack for Nikaho in December

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

In December, Nikaho sees daytime highs around 5°C and nights near 1°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 24 days see rain.

a warm layerrain geara heavy coat

Sea temperature near Nikaho in December

The nearest coast averages about 14°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 13 km away) is warmest in August at about 26°C and coldest in March near 9°C.

It's comfortable for a long swim from Jun 27 to Oct 24 — about 3.9 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar9Bracing
Apr10Bracing
May14Bracing
Jun19Cool
Jul22Refreshing
Aug26Warm
Sep25Warm
Oct21Refreshing
Nov18Cool
Dec14Bracing

UV index in Nikaho in December

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Nikaho peaks around August 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 18UV 9Jan 10UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar3Moderate
Apr6High
May8Very high
Jun7Very high
Jul6High
Aug9Very high
Sep7High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Nikaho in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Nikaho is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1721 µg/m³Dec 159 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun15Moderate
Jul13Moderate
Aug11Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Nikaho?

Nikaho sits at 39.3°N, 139.9°E, 47 m above sea level, in Japan. The nearest listed city is Yurihonjō, 17 km away.

Topography around Nikaho

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

Within 3 km, the terrain around Nikaho has only modest variations in elevation — a maximum elevation change of 127 m around an average of 20 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,122 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,210 m.

The land around Nikaho is covered by trees (30%), cropland (27%) and water (25%) within 3 km, water (52%) and trees (36%) within 16 km, and trees (50%) and water (38%) within 80 km.

3 km
127 m
16 km
1,122 m
80 km
2,210 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Yurihonjō 17 km · Sakata 40 km · Shonai 47 km · Yuzawa 50 km · Ōmagari 51 km · Daisen 51 km · Akita 52 km · Yokote 53 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 Nikaho (39.2708°, 139.9395°, elevation 47 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).