Uto weather in December

In December, Uto sees average daytime highs of 11°C and overnight lows near 5°C, with 84 mm of precipitation across 10 wet days and about 9.9 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 13°C in the first days to 10°C by the end. The sky is clear or mostly clear about 29% 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 Uto's 3rd-clearest and 4th-windiest month. For the whole year in context, see Uto's year-round climate.

Daytime high
11°
10th warmest
Overnight low
3rd coldest
Precipitation
84 mm
10 wet days
Daylight
9 h 54 min
7:18 AM – 5:09 PM
Cloud cover
56%
3rd clearest
Wind
9 km/h
4th windiest
Solar energy
2.31 kWh/m²
Travel score
2.9
out of 10

Uto is city in Kumamoto Prefecture, Japan.

Density
505/km²
people per km²
Founded
1958

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 13°C in the first days to 10°C by the end.

A typical December day in Uto reaches about 11°C in the afternoon and slips back to 5°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 16°C. Set against its neighbours, December runs about 6°C cooler than November and about 2°C warmer than January.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1147
2147
3137
4137
5136
6136
7126
8126
9126
10126
11126
12125
13115
14115
15115
16115
17115
18115
19115
20115
21115
22115
23104
24104
25104
26104
27104
28104
29104
30104
31104

How December really feels in Uto

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.

Uto weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 7910.61.810.11.8
Feb10° / 9610.21.210.82.3
Mar14° / 14213.10.211.83.8
Apr18° / 11°15412.1012.85.5
May22° / 15°17812013.76.4
Jun25° / 20°40317014.15.4
Jul29° / 23°30116.3013.94.8
Aug30° / 24°13513013.24.7
Sep27° / 21°15611.8012.26.1
Oct23° / 15°988.3011.27.1
Nov17° / 10°938.8010.35.6
Dec11° / 84100.99.92.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 20% of December, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25446
35446
45347
55347
65248
75248
85149
95149
105050
114951
124951
134951
144852
154951
164852
174852
184852
194852
204852
214852
224852
234852
244852
254753
264852
274753
284654
294654
304555
314555

Chance of precipitation in December

Any precipitationSnow

Uto gets around 84 mm of rain and snow over 10 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 32% and peaks near 34% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1330
2330
3340
4340
5341
6341
7341
8341
9341
10341
11331
12332
13332
14332
15322
16323
17323
18323
19313
20314
21314
22314
23315
24305
25305
26305
27306
28306
29306
30296
31296

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19541
29541
39631
49631
59631
69820
79820
89820
99820
109820
119910
129910
139910
149910
159910
169910
179910
189910
199910
209910
219910
229910
2310000
2410000
2510000
2610000
2710000
2810000
2910000
3010000
3110000

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 8 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
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 7:07 AM to 7:24 AM, and sunset from 5:07 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.07:075:07
210.07:085:07
310.07:095:07
410.07:095:07
510.07:105:07
69.97:115:07
79.97:125:07
89.97:125:07
99.97:135:08
109.97:145:08
119.97:155:08
129.97:155:08
139.97:165:08
149.97:165:09
159.97:175:09
169.97:185:09
179.97:185:10
189.97:195:10
199.87:195:10
209.87:205:11
219.87:205:11
229.87:215:12
239.87:215:12
249.87:225:13
259.87:225:13
269.97:235:14
279.97:235:14
289.97:235:15
299.97:245:16
309.97:245:16
319.97:245:17

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.31 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 5.15 kWh/m² in May across the year — December's 2.31 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.4Moderate
32.4Moderate
42.4Moderate
52.4Moderate
62.3Moderate
72.3Moderate
82.3Moderate
92.3Moderate
102.3Moderate
112.3Moderate
122.3Moderate
132.3Moderate
142.3Moderate
152.3Moderate
162.3Moderate
172.3Moderate
182.3Moderate
192.3Moderate
202.3Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.3Moderate
252.3Moderate
262.4Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.4Moderate
Planning a trip in December

Hazard calendar for Uto

In seasonPeak

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

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

Uto'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 Uto?

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

2.9
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 Uto.

What to pack for Uto in December

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

In December, Uto sees daytime highs around 11°C and nights near 5°C. Pack a warm layer. Worth having: rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Uto in December

The nearest coast averages about 17°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 22 km away) is warmest in August at about 27°C and coldest in February near 13°C.

It's comfortable for a long swim from May 27 to Nov 13 — about 5.6 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec17Cool

UV index in Uto 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 Uto peaks around June 22 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 highModerateJun 22UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr8Very high
May8Very high
Jun10Extreme
Jul10Extreme
Aug9Very high
Sep10Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Uto 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 Uto is worst in March — around 25 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (July, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2325 µg/m³Jul 2114 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb20Moderate
Mar25Moderate
Apr25Moderate
May23Moderate
Jun19Moderate
Jul13Moderate
Aug15Moderate
Sep14Moderate
Oct14Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Uto?

Uto sits at 32.7°N, 130.7°E, 4 m above sea level, in Japan. The nearest listed city is Matsubase, 4.0 km away.

Topography around Uto

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

Within 3 km, the terrain around Uto has significant variations in elevation — a maximum elevation change of 270 m around an average of 23 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 663 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,762 m.

The land around Uto is covered by artificial surfaces (33%), cropland (32%) and trees (29%) within 3 km, trees (34%), cropland (22%) and water (22%) within 16 km, and trees (64%) and water (20%) within 80 km.

3 km
270 m
16 km
663 m
80 km
1,762 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Matsubase 4.0 km · Uki 7.0 km · Kotō 13 km · Kumamoto 14 km · Shimada 14 km · Mifune 15 km · Honmachi 21 km · Ōyanomachi-noboritate 24 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 Uto (32.6833°, 130.6667°, elevation 4 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).