Uozu weather in December

In December, Uozu sees average daytime highs of 5°C and overnight lows near -0°C, with 240 mm of precipitation across 22.6 wet days and about 9.5 hours of daylight. It is the 10th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 7°C in the first days to 3°C by the end. The sky is clear or mostly clear about 15% 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 Uozu's 7th-clearest and 1st-windiest month. For the whole year in context, see Uozu's year-round climate.

Daytime high
10th warmest
Overnight low
-0°
4th coldest
Precipitation
240 mm
22.6 wet days
Daylight
9 h 30 min
7:02 AM – 4:31 PM
Cloud cover
69%
7th clearest
Wind
8 km/h
1st windiest
Solar energy
2.02 kWh/m²
Travel score
0.2
out of 10

Uozu is city in Toyama Prefecture, Japan.

Density
229/km²
people per km²
Founded
1952

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 7°C in the first days to 3°C by the end.

A typical December day in Uozu reaches about 5°C in the afternoon and slips back to -0°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 0°C and 9°C. Set against its neighbours, December runs about 6°C cooler than November and about 3°C warmer than January.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
182
272
372
472
571
671
761
861
961
1060
1150
1250
1350
1450
1550
164-1
174-1
184-1
194-1
204-1
214-1
224-1
233-1
243-2
253-2
263-2
273-2
283-2
293-2
303-2
312-2

How December really feels in Uozu

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.

Uozu weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°24224.623.59.80.0
Feb / -3°19520.41910.60.0
Mar / -1°20620.115.611.70.4
Apr12° / 17115.45.312.92.8
May18° / 11°18015.60.413.95.0
Jun21° / 16°23316.5014.55.2
Jul25° / 20°31521.1014.34.9
Aug27° / 21°21719.2013.45.2
Sep23° / 17°24317.6012.25.3
Oct17° / 11°20916.10.4114.7
Nov11° / 19318.15.7102.2
Dec / -0°24022.617.89.50.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 70%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33169
43070
53070
63070
72971
82971
92971
102971
112971
122971
132971
143070
153070
163070
173070
183070
193070
203070
213070
223070
233070
243070
253070
263070
273070
282872
292872
302773
312674

Chance of precipitation in December

Any precipitationSnow

Uozu gets around 240 mm of rain and snow over 22.6 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 73% and peaks near 77% on the wettest days, and about 18 days bring snow. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)Snow chance (%)
16938
27039
37041
47143
57145
67147
77248
87250
97252
107254
117255
127256
137257
147258
157258
167258
177259
187259
197360
207361
217361
227462
237463
247464
257565
267565
277566
287667
297669
307770
317771

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 8 km/h in December, the windiest month of the year.

Across December, 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 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 6:50 AM to 7:08 AM, and sunset from 4:30 PM to 4:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.76:504:30
29.66:514:30
39.66:524:30
49.66:534:30
59.66:544:30
69.66:554:30
79.66:554:30
89.66:564:30
99.56:574:30
109.56:584:30
119.56:584:30
129.56:594:30
139.57:004:31
149.57:014:31
159.57:014:31
169.57:024:31
179.57:024:32
189.57:034:32
199.57:044:32
209.57:044:33
219.57:054:33
229.57:054:34
239.57:064:34
249.57:064:35
259.57:064:35
269.57:074:36
279.57:074:36
289.57:074:37
299.57:084:38
309.57:084:38
319.57:084:39

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.02 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.02 kWh/m² to a high of 5.66 kWh/m² in May across the year — December's 2.02 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.1Moderate
22.1Moderate
32.1Moderate
42.0Moderate
52.0Moderate
62.0Moderate
72.0Moderate
82.0Moderate
92.0Moderate
102.0Moderate
112.0Moderate
122.0Moderate
132.0Moderate
142.0Moderate
152.0Moderate
162.0Moderate
172.0Moderate
182.0Moderate
192.0Moderate
202.0Moderate
212.0Moderate
222.0Moderate
232.1Moderate
242.1Moderate
252.1Moderate
262.1Moderate
272.1Moderate
282.1Moderate
292.1Moderate
302.1Moderate
312.1Moderate
Planning a trip in December

Hazard calendar for Uozu

In seasonPeak

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

Uozu 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 Uozu?

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 Uozu.

What to pack for Uozu in December

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

In December, Uozu sees daytime highs around 5°C and nights near -0°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 23 days see rain.

a warm layerrain geara heavy coat

Sea temperature near Uozu 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 offshore is warmest in August at about 27°C and coldest in March near 10°C.

It's comfortable for a long swim from Jun 18 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
Mar10Bracing
Apr11Bracing
May15Cool
Jun20Cool
Jul24Refreshing
Aug27Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Uozu 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 Uozu peaks around August 10 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 highModerateAug 10UV 10Dec 20UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug10Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Uozu 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 Uozu 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 1621 µg/m³Dec 139 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar20Moderate
Apr21Moderate
May20Moderate
Jun18Moderate
Jul14Moderate
Aug12Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Uozu?

Uozu sits at 36.8°N, 137.4°E, 13 m above sea level, in Japan. The nearest listed city is Namerikawa, 6.0 km away.

Topography around Uozu

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

Within 3 km, the terrain around Uozu has only modest variations in elevation — a maximum elevation change of 228 m around an average of 35 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,841 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,123 m.

The land around Uozu is covered by artificial surfaces (34%), cropland (26%) and water (21%) within 3 km, trees (34%) and water (34%) within 16 km, and trees (57%) and water (31%) within 80 km.

3 km
228 m
16 km
1,841 m
80 km
3,123 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Namerikawa 6.0 km · Kamiichi 12 km · Kurobe-shi 12 km · Gohyakkoku 17 km · Nyūzen 18 km · Toyama 20 km · Imizu 25 km · Nishishinminato 29 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 Uozu (36.8°, 137.4°, elevation 13 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).