Ushibukamachi weather in December

In December, Ushibukamachi sees average daytime highs of 14°C and overnight lows near 11°C, with 107 mm of precipitation across 12.1 wet days and about 9.9 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 16°C in the first days to 13°C by the end. The sky is clear or mostly clear about 24% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 hours at the start of December to 9 h 54 min by month's end. Set against the rest of the year, December is Ushibukamachi's 7th-clearest and 2nd-windiest month. For the whole year in context, see Ushibukamachi's year-round climate.

Daytime high
14°
10th warmest
Overnight low
11°
3rd coldest
Precipitation
107 mm
12.1 wet days
Daylight
9 h 54 min
7:19 AM – 5:13 PM
Cloud cover
62%
7th clearest
Wind
23 km/h
2nd windiest
Solar energy
2.21 kWh/m²
Travel score
3.8
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 16°C in the first days to 13°C by the end.

A typical December day in Ushibukamachi reaches about 14°C in the afternoon and slips back to 11°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 18°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)
11613
21613
31612
41512
51512
61512
71512
81512
91511
101411
111411
121411
131411
141411
151411
161411
171410
181310
191310
201310
211310
221310
231310
241310
251310
261310
271310
281310
29139
30139
31129

How December really feels in Ushibukamachi

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.

Ushibukamachi weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 9712.910.12.7
Feb12° / 1051210.83.0
Mar15° / 11°14812.411.84.1
Apr18° / 15°16711.612.85.5
May21° / 18°1881113.66.3
Jun24° / 22°44317.414.15.4
Jul28° / 25°32315.813.95.3
Aug29° / 27°17613.813.25.1
Sep27° / 24°19711.912.26.2
Oct23° / 20°1108.311.27.3
Nov18° / 15°1169.710.46.0
Dec14° / 11°10712.19.93.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 58%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24852
34753
44852
54753
64654
74555
84456
94357
104357
114258
124258
134159
144159
154159
164060
174060
184060
193961
203961
214060
224060
233961
244060
254060
264060
273961
283961
294060
303961
313862

Chance of precipitation in December

Any precipitation

Ushibukamachi gets around 107 mm of rain and snow over 12.1 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 39% and peaks near 41% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
238
339
439
539
639
740
840
940
1040
1140
1240
1341
1440
1540
1640
1740
1839
1939
2039
2138
2238
2338
2438
2538
2637
2737
2837
2937
3036
3136

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 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19073
29073
39262
49262
59262
69352
79352
89451
99451
109451
119451
129451
139451
149541
159541
169640
179640
189640
199640
209640
219730
229730
239730
249730
259730
269730
279820
289820
299820
309820
319820

Wind in December

Winds average 23 km/h in December.

Across December, daily wind ranges from about 22 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
122breezy
222breezy
322breezy
422breezy
522breezy
623breezy
723breezy
823breezy
923breezy
1023breezy
1123breezy
1223breezy
1323breezy
1423breezy
1523breezy
1623breezy
1723breezy
1823breezy
1923breezy
2023breezy
2123breezy
2223breezy
2323breezy
2423breezy
2523breezy
2623breezy
2724breezy
2824breezy
2924breezy
3024breezy
3124breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 hours at the start of December to 9 h 54 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 7:08 AM to 7:26 AM, and sunset from 5:11 PM to 5:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.07:085:11
210.07:095:11
310.07:105:11
410.07:115:11
510.07:125:11
610.07:125:11
710.07:135:11
810.07:145:11
99.97:145:11
109.97:155:12
119.97:165:12
129.97:175:12
139.97:175:12
149.97:185:12
159.97:185:13
169.97:195:13
179.97:205:13
189.97:205:14
199.97:215:14
209.97:215:15
219.97:225:15
229.97:225:16
239.97:235:16
249.97:235:16
259.97:245:17
269.97:245:18
279.97:245:18
289.97:255:19
299.97:255:19
309.97:255:20
319.97:265:21

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.21 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.21 kWh/m² to a high of 5.36 kWh/m² in May across the year — December's 2.21 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.4Moderate
32.3Moderate
42.3Moderate
52.3Moderate
62.3Moderate
72.3Moderate
82.2Moderate
92.2Moderate
102.2Moderate
112.2Moderate
122.2Moderate
132.2Moderate
142.2Moderate
152.2Moderate
162.2Moderate
172.2Moderate
182.2Moderate
192.2Moderate
202.2Moderate
212.2Moderate
222.2Moderate
232.2Moderate
242.2Moderate
252.2Moderate
262.2Moderate
272.2Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in December

Hazard calendar for Ushibukamachi

In seasonPeak

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

Ushibukamachi sits in the Pacific typhoon belt; the season peaks July–October.

Ushibukamachi's rainy season runs June–July, when most of the year's rain falls.

Pacific typhoon
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Ushibukamachi?

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

3.8
Sightseeing
10th-best month of the year
0.1
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Ushibukamachi.

What to pack for Ushibukamachi in December

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

In December, Ushibukamachi sees daytime highs around 14°C and nights near 11°C. Worth packing: a warm layer, rain gear and a windbreaker. About 12 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Ushibukamachi 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 13 km away) is warmest in August at about 28°C and coldest in February near 17°C.

It's comfortable for a long swim from May 14 to Dec 7 — about 6.8 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan18Cool
Feb17Cool
Mar17Cool
Apr18Cool
May20Refreshing
Jun23Refreshing
Jul26Warm
Aug28Warm
Sep27Warm
Oct24Warm
Nov22Refreshing
Dec19Cool

UV index in Ushibukamachi in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ushibukamachi peaks around July 13 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 13UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr8Very high
May8Very high
Jun10Very high
Jul11Extreme
Aug9Very high
Sep10Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Ushibukamachi 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 Ushibukamachi is worst in April — around 22 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (July, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 1122 µg/m³Jul 2311 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb18Moderate
Mar22Moderate
Apr22Moderate
May20Moderate
Jun16Moderate
Jul11Good
Aug11Good
Sep11Good
Oct11Good
Nov13Moderate
Dec12Moderate
Location & terrain

Where is Ushibukamachi?

Ushibukamachi sits at 32.2°N, 130.0°E, 109 m above sea level, in Japan. The nearest listed city is Akune, 27 km away.

Topography around Ushibukamachi

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

Within 3 km, the terrain around Ushibukamachi has significant variations in elevation — a maximum elevation change of 285 m around an average of 29 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 435 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,449 m.

The land around Ushibukamachi is covered by water (47%) and trees (44%) within 3 km, water (70%) and trees (27%) within 16 km, and water (60%) and trees (35%) within 80 km.

3 km
285 m
16 km
435 m
80 km
1,449 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Akune 27 km · Hondomachi-hondo 32 km · Amakusa 33 km · Izumi 35 km · Minamata 36 km · Sashiki 47 km · Sendai 50 km · Tsuruda 52 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 Ushibukamachi (32.2014°, 130.0217°, elevation 109 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).