Shima weather in December

In December, Shima sees average daytime highs of 13°C and overnight lows near 9°C, with 78 mm of rain across 6.9 wet days and about 9.7 hours of daylight. It is the 10th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 15°C in the first days to 11°C by the end. The sky is clear or mostly clear about 60% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of December to 9 h 42 min by month's end. Set against the rest of the year, December is Shima's 1st-clearest and 4th-windiest month. For the whole year in context, see Shima's year-round climate.

Daytime high
13°
10th warmest
Overnight low
4th coldest
Rainfall
78 mm
6.9 wet days
Daylight
9 h 42 min
6:57 AM – 4:40 PM
Cloud cover
38%
1st clearest
Wind
21 km/h
4th windiest
Solar energy
2.64 kWh/m²
Travel score
4.1
out of 10

Shima is city in Mie Prefecture, Japan.

Density
267/km²
people per km²
Founded
2004

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 15°C in the first days to 11°C by the end.

A typical December day in Shima reaches about 13°C in the afternoon and slips back to 9°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 16°C. Set against its neighbours, December runs about 5°C cooler than November and about 2°C warmer than January.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
11511
21511
31511
41511
51410
61410
71410
81410
91410
101410
11139
12139
13139
14139
15139
16139
17139
18128
19128
20128
21128
22128
23128
24128
25128
26128
27128
28127
29117
30117
31117

How December really feels in Shima

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

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Shima weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan10° / 796.2102.8
Feb11° / 827.510.72.9
Mar14° / 14410.711.74.0
Apr18° / 13°14910.412.85.6
May21° / 17°17411.513.86.2
Jun24° / 21°25014.414.25.7
Jul27° / 25°1911414.15.6
Aug29° / 26°1381313.35.3
Sep26° / 23°25015.212.25.8
Oct22° / 19°27713.211.16.3
Nov18° / 14°1249.510.25.9
Dec13° / 786.99.74.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 26%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26931
36931
47030
57030
67129
77228
87228
97327
107327
117327
127327
137426
147426
157426
167426
177426
187525
197525
207525
217624
227624
237624
247723
257723
267822
277822
287921
297921
307921
317921

Chance of precipitation in December

Any precipitation

Shima gets around 78 mm of rain over 6.9 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 22% and peaks near 28% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
427
527
626
726
825
925
1024
1124
1223
1323
1422
1522
1621
1721
1821
1920
2020
2120
2219
2319
2419
2518
2618
2718
2817
2917
3017
3117

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19361
29451
39451
49451
59541
69541
79541
89730
99730
109730
119820
129820
139820
149820
159910
169910
179910
189910
199910
209910
2110000
2210000
2310000
2410000
2510000
2610000
2710000
2810000
2910000
3010000
3110000

Wind in December

Winds average 21 km/h in December.

Across December, daily wind ranges from about 20 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
120light breeze
220light breeze
320light breeze
420light breeze
520breezy
620breezy
720breezy
820breezy
920breezy
1020breezy
1120breezy
1220breezy
1320breezy
1420breezy
1520breezy
1621breezy
1721breezy
1821breezy
1921breezy
2021breezy
2121breezy
2221breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 54 min at the start of December to 9 h 42 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 6:46 AM to 7:04 AM, and sunset from 4:39 PM to 4:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.96:464:39
29.96:474:39
39.86:484:38
49.86:494:38
59.86:504:38
69.86:504:38
79.86:514:39
89.86:524:39
99.86:534:39
109.86:534:39
119.86:544:39
129.76:554:39
139.76:554:40
149.76:564:40
159.76:574:40
169.76:574:40
179.76:584:41
189.76:584:41
199.76:594:41
209.77:004:42
219.77:004:42
229.77:014:43
239.77:014:43
249.77:014:44
259.77:024:44
269.77:024:45
279.77:034:45
289.77:034:46
299.77:034:47
309.77:044:47
319.77:044:48

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.64 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.64 kWh/m² to a high of 5.67 kWh/m² in May across the year — December's 2.64 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.7Moderate
32.7Moderate
42.7Moderate
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
192.7Moderate
202.7Moderate
212.7Moderate
222.7Moderate
232.7Moderate
242.7Moderate
252.7Moderate
262.7Moderate
272.8Moderate
282.8Moderate
292.8Moderate
302.8Moderate
312.8Moderate
Planning a trip in December

Hazard calendar for Shima

In seasonPeak

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

Shima 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 Shima?

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

4.1
Sightseeing
9th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a reasonable time to visit Shima for sightseeing.

What to pack for Shima in December

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

In December, Shima sees daytime highs around 13°C and nights near 9°C. Worth packing: a warm layer and a windbreaker. About 7 days see rain.

a warm layera windbreaker

Sea temperature near Shima in December

The nearest coast averages about 19°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 23 km away) is warmest in August at about 27°C and coldest in February near 16°C.

It's comfortable for a long swim from May 20 to Dec 2 — about 6.5 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb16Cool
Mar17Cool
Apr18Cool
May20Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Refreshing
Nov21Refreshing
Dec19Cool

UV index in Shima in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Shima peaks around July 13 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 13UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Shima 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 Shima is worst in March — around 26 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (July, 16 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2326 µg/m³Jul 2316 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb21Moderate
Mar26Moderate
Apr26Moderate
May24Moderate
Jun20Moderate
Jul16Moderate
Aug16Moderate
Sep17Moderate
Oct19Moderate
Nov21Moderate
Dec18Moderate
Location & terrain

Where is Shima?

Shima sits at 34.3°N, 136.8°E, 11 m above sea level, in Japan. The nearest listed city is Toba, 17 km away.

Topography around Shima

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

Within 3 km, the terrain around Shima has only modest variations in elevation — a maximum elevation change of 143 m around an average of 23 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 555 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,684 m.

The land around Shima is covered by trees (69%) within 3 km, water (53%) and trees (42%) within 16 km, and water (53%) and trees (34%) within 80 km.

3 km
143 m
16 km
555 m
80 km
1,684 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Toba 17 km · Ise 21 km · Tamaru 25 km · Saikū 29 km · Matsusaka 39 km · Minamichita 41 km · Toyohama 43 km · Hisai-motomachi 50 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 Shima (34.3333°, 136.8333°, elevation 11 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).