Oyabe weather in December

In December, Oyabe sees average daytime highs of 9°C and overnight lows near 4°C, with 174 mm of precipitation across 21.6 wet days and about 9.5 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 12°C in the first days to 8°C by the end. The sky is clear or mostly clear about 10% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of December to 9 h 30 min by month's end. Set against the rest of the year, December is Oyabe's 8th-clearest and 1st-windiest month. For the whole year in context, see Oyabe's year-round climate.

Daytime high
10th warmest
Overnight low
4th coldest
Precipitation
174 mm
21.6 wet days
Daylight
9 h 30 min
7:04 AM – 4:34 PM
Cloud cover
68%
8th clearest
Wind
13 km/h
1st windiest
Solar energy
1.94 kWh/m²
Travel score
1.5
out of 10

Oyabe is city in Toyama prefecture, Japan.

Density
216/km²
people per km²
Founded
1962

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 12°C in the first days to 8°C by the end.

A typical December day in Oyabe reaches about 9°C in the afternoon and slips back to 4°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 5°C and 14°C. Set against its neighbours, December runs about 6°C cooler than November and about 3°C warmer than January.

-5°10°15°20°151015202531
Avg high (°C)Avg low (°C)
1126
2126
3126
4116
5115
6115
7115
8115
9105
10105
11104
12104
13104
14104
1594
1694
1794
1894
1993
2093
2193
2293
2383
2483
2583
2683
2783
2883
2982
3082
3182

How December really feels in Oyabe

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 12 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
12
wind chill below the day's low

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Oyabe 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 / 15722.111.49.80.5
Feb / 11117.48.710.60.8
Mar11° / 12916.43.111.72.4
Apr17° / 11112.30.312.95.0
May22° / 14°11111.9013.96.4
Jun26° / 19°14411.2014.56.3
Jul29° / 23°21114.8014.34.6
Aug31° / 24°14112013.44.2
Sep27° / 20°17713.5012.25.7
Oct21° / 14°14313.2011.16.1
Nov15° / 14516.20.1103.9
Dec / 17421.65.69.51.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 22% of December, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23664
33664
43664
53466
63367
73367
83367
93268
103169
113070
123070
133070
143070
153070
163070
173070
183070
193169
203169
213268
223268
233268
243367
253367
263268
273268
283367
293367
303268
313268

Chance of precipitation in December

Any precipitationSnow

Oyabe gets around 174 mm of rain and snow over 21.6 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 69% and peaks near 72% on the wettest days, and about 6 days bring snow. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)Snow chance (%)
1634
2645
3656
4667
5668
6679
76810
86911
96912
107014
117015
127016
137016
147017
157018
167019
177020
187021
197021
207122
217123
227123
237124
247124
257125
267125
277126
287127
297227
307228
317229

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 (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in December

Winds average 13 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light 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 December

DaylightNight

Daylight runs from about 9 h 42 min at the start of December to 9 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 6:52 AM to 7:10 AM, and sunset from 4:33 PM to 4:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.76:524:33
29.76:534:32
39.66:544:32
49.66:554:32
59.66:564:32
69.66:564:32
79.66:574:32
89.66:584:32
99.66:594:32
109.67:004:33
119.57:004:33
129.57:014:33
139.57:024:33
149.57:024:33
159.57:034:34
169.57:044:34
179.57:044:34
189.57:054:35
199.57:054:35
209.57:064:35
219.57:064:36
229.57:074:36
239.57:074:37
249.57:084:37
259.57:084:38
269.57:094:38
279.57:094:39
289.57:094:40
299.57:104:40
309.57:104:41
319.57:104:41

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.94 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.94 kWh/m² to a high of 5.77 kWh/m² in May across the year — December's 1.94 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.0Moderate
22.0Moderate
32.0Dim
42.0Dim
52.0Dim
62.0Dim
71.9Dim
81.9Dim
91.9Dim
101.9Dim
111.9Dim
121.9Dim
131.9Dim
141.9Dim
151.9Dim
161.9Dim
171.9Dim
181.9Dim
191.9Dim
201.9Dim
212.0Dim
222.0Dim
232.0Dim
242.0Dim
252.0Dim
262.0Moderate
272.0Moderate
282.0Moderate
292.0Moderate
302.0Moderate
312.0Moderate
Planning a trip in December

Hazard calendar for Oyabe

In seasonPeak

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

Oyabe 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 Oyabe?

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

1.5
Sightseeing
10th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Oyabe.

What to pack for Oyabe in December

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

In December, Oyabe sees daytime highs around 9°C and nights near 4°C. Pack a warm layer and rain gear. About 22 days see rain.

a warm layerrain gear

Sea temperature near Oyabe in December

The nearest coast averages about 16°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 21 km away) is warmest in August at about 27°C and coldest in March near 11°C.

It's comfortable for a long swim from Jun 17 to Nov 3 — about 4.6 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb11Bracing
Mar11Bracing
Apr12Bracing
May16Cool
Jun20Cool
Jul24Refreshing
Aug27Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Oyabe 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 Oyabe peaks around August 14 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 14UV 10Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug10Very high
Sep9Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Oyabe 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 Oyabe is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (October, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1722 µg/m³Oct 1110 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb15Moderate
Mar21Moderate
Apr23Moderate
May21Moderate
Jun18Moderate
Jul15Moderate
Aug12Good
Sep10Good
Oct10Good
Nov11Good
Dec10Good
Location & terrain

Where is Oyabe?

Oyabe sits at 36.7°N, 136.8°E, 66 m above sea level, in Japan. The nearest listed city is Tonami, 10 km away.

Topography around Oyabe

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

Within 3 km, the terrain around Oyabe has only modest variations in elevation — a maximum elevation change of 247 m around an average of 83 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 830 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,072 m.

The land around Oyabe is covered by trees (50%) and cropland (27%) within 3 km, trees (52%) and cropland (31%) within 16 km, and trees (52%) and water (35%) within 80 km.

3 km
247 m
16 km
830 m
80 km
3,072 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Tonami 10 km · Tsubata 10 km · Nanto-shi 12 km · Fukumitsu 12 km · Kahoku 16 km · Takaoka 18 km · Nanto 18 km · Mukai-awagasaki 19 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 Oyabe (36.6667°, 136.85°, elevation 66 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).