Imizu weather in December

In December, Imizu sees average daytime highs of 8°C and overnight lows near 2°C, with 214 mm of precipitation across 22 wet days and about 9.5 hours of daylight. It is the 10th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 10°C in the first days to 6°C by the end. The sky is clear or mostly clear about 14% 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 Imizu's 8th-clearest and 1st-windiest month. For the whole year in context, see Imizu's year-round climate.

Daytime high
10th warmest
Overnight low
4th coldest
Precipitation
214 mm
22 wet days
Daylight
9 h 30 min
7:03 AM – 4:33 PM
Cloud cover
66%
8th clearest
Wind
9 km/h
1st windiest
Solar energy
1.94 kWh/m²
Travel score
0.9
out of 10

Imizu is city in Toyama Prefecture, Japan.

Density
829/km²
people per km²
Founded
2005

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 10°C in the first days to 6°C by the end.

A typical December day in Imizu reaches about 8°C in the afternoon and slips back to 2°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 3°C and 12°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)
1115
2105
3104
4104
5104
694
794
894
993
1093
1183
1283
1383
1483
1582
1682
1772
1872
1972
2072
2172
2272
2371
2461
2561
2661
2761
2861
2961
3061
3161

How December really feels in Imizu

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 18 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
18
wind chill below the day's low

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

Imizu weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°21022.917.99.80.0
Feb / -0°16419.114.610.60.1
Mar / 17918.98.811.71.5
Apr15° / 15014.51.312.94.2
May21° / 13°15614.6013.95.8
Jun24° / 18°20015.4014.55.7
Jul28° / 22°27318.6014.34.8
Aug29° / 23°17815.8013.44.8
Sep25° / 19°21115.6012.25.7
Oct19° / 13°18014.60115.5
Nov14° / 16916.81.2103.3
Dec / 2142210.89.50.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 23% of December, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23862
33763
43763
53664
63664
73664
83664
93664
103565
113565
123565
133565
143664
153763
163862
173862
183862
193862
203961
213862
223862
233862
243961
253961
263862
273862
283763
293763
303862
313763

Chance of precipitation in December

Any precipitationSnow

Imizu gets around 214 mm of rain and snow over 22 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 71% and peaks near 73% on the wettest days, and about 11 days bring snow.

0%20%40%60%80%151015202531
Rain chance (%)Snow chance (%)
16613
26714
36816
46817
56919
67021
77023
87025
97127
107128
117130
127131
137133
147134
157135
167136
177137
187138
197139
207140
217141
227142
237143
247244
257245
267246
277247
287348
297349
307350
317351

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

Across December, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 6:51 AM to 7:09 AM, and sunset from 4:31 PM to 4:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.76:514:31
29.66:524:31
39.66:534:31
49.66:544:31
59.66:554:31
69.66:564:31
79.66:564:31
89.66:574:31
99.66:584:31
109.56:594:31
119.56:594:31
129.57:004:32
139.57:014:32
149.57:024:32
159.57:024:32
169.57:034:33
179.57:034:33
189.57:044:33
199.57:054:34
209.57:054:34
219.57:064:34
229.57:064:35
239.57:074:35
249.57:074:36
259.57:074:36
269.57:084:37
279.57:084:38
289.57:084:38
299.57:094:39
309.57:094:39
319.57:094:40

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 5.68 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
61.9Dim
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
202.0Dim
212.0Dim
222.0Dim
232.0Dim
242.0Dim
252.0Moderate
262.0Moderate
272.0Moderate
282.0Moderate
292.0Moderate
302.0Moderate
312.0Moderate
Planning a trip in December

Hazard calendar for Imizu

In seasonPeak

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

Imizu 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 Imizu?

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

0.9
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 Imizu.

What to pack for Imizu in December

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

In December, Imizu sees daytime highs around 8°C and nights near 2°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 22 days see rain.

a warm layerrain geara heavy coat

Sea temperature near Imizu 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 Imizu 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 Imizu peaks around August 13 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 13UV 10Dec 20UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug10Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Imizu 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 Imizu 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 Imizu?

Imizu sits at 36.8°N, 137.1°E, 3 m above sea level, in Japan. The nearest listed city is Nishishinminato, 5.0 km away.

Topography around Imizu

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

Within 3 km, the terrain around Imizu has only modest variations in elevation — a maximum elevation change of 19 m around an average of 1 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 263 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,123 m.

The land around Imizu is covered by water (45%) and artificial surfaces (30%) within 3 km, water (43%) and artificial surfaces (24%) within 16 km, and trees (53%) and water (36%) within 80 km.

3 km
19 m
16 km
263 m
80 km
3,123 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Nishishinminato 5.0 km · Takaoka 10 km · Toyama 11 km · Himi 15 km · Himimachi 16 km · Gohyakkoku 21 km · Namerikawa 21 km · Yatsuomachi-higashikumisaka 22 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 Imizu (36.7683°, 137.1257°, elevation 3 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).