Sekimachi weather in December

In December, Sekimachi sees average daytime highs of 11°C and overnight lows near 3°C, with 68 mm of precipitation across 7.7 wet days and about 9.6 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 9°C by the end. The sky is clear or mostly clear about 45% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of December to 9 h 36 min by month's end. Set against the rest of the year, December is Sekimachi's 1st-clearest and 5th-windiest month. For the whole year in context, see Sekimachi's year-round climate.

Daytime high
11°
10th warmest
Overnight low
3rd coldest
Precipitation
68 mm
7.7 wet days
Daylight
9 h 36 min
7:00 AM – 4:37 PM
Cloud cover
47%
1st clearest
Wind
8 km/h
5th windiest
Solar energy
2.38 kWh/m²
Travel score
2.9
out of 10

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 9°C by the end.

A typical December day in Sekimachi reaches about 11°C in the afternoon and slips back to 3°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 15°C. Set against its neighbours, December runs about 6°C cooler than November and about 2°C warmer than January.

-5°10°15°20°151015202531
Avg high (°C)Avg low (°C)
1135
2134
3134
4134
5134
6124
7124
8123
9123
10123
11113
12113
13113
14113
15113
16112
17102
18102
19102
20102
21102
22102
23102
24102
25102
26102
2791
2891
2991
3091
3191

How December really feels in Sekimachi

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 14 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
14
wind chill below the day's low

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

Sekimachi 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 / 667.71.79.91.7
Feb10° / 737.41.510.72.2
Mar13° / 13810.90.311.73.8
Apr19° / 15711.7012.95.7
May23° / 13°17711.8013.86.5
Jun26° / 18°22014.6014.45.6
Jul30° / 22°27116.9014.24.2
Aug31° / 23°15614.1013.33.9
Sep28° / 20°21612.6012.25.6
Oct22° / 13°17510.6011.16.7
Nov16° / 1037.9010.15.5
Dec11° / 687.70.69.62.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of December, with mostly cloudy or overcast conditions the remaining 35%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26238
36238
46238
56238
66337
76337
86337
96337
106337
116436
126436
136436
146436
156535
166535
176535
186535
196535
206733
216733
226733
236733
246733
256733
266832
276832
286832
296931
306931
316931

Chance of precipitation in December

Any precipitationSnow

Sekimachi gets around 68 mm of rain and snow over 7.7 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 25% and peaks near 26% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1240
2240
3240
4240
5240
6241
7241
8241
9241
10241
11241
12241
13251
14252
15252
16252
17252
18252
19252
20253
21253
22253
23253
24253
25263
26264
27264
28264
29264
30265
31265

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 (%)Comfortable (%)
1991
2991
3991
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
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 48 min at the start of December to 9 h 36 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 6:49 AM to 7:07 AM, and sunset from 4:35 PM to 4:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.86:494:35
29.86:504:35
39.76:504:35
49.76:514:35
59.76:524:35
69.76:534:35
79.76:544:35
89.76:554:35
99.76:554:35
109.76:564:36
119.66:574:36
129.66:574:36
139.66:584:36
149.66:594:36
159.66:594:37
169.67:004:37
179.67:014:37
189.67:014:38
199.67:024:38
209.67:024:38
219.67:034:39
229.67:034:39
239.67:044:40
249.67:044:40
259.67:054:41
269.67:054:41
279.67:054:42
289.67:064:43
299.67:064:43
309.67:064:44
319.67:074:44

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.38 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.38 kWh/m² to a high of 5.38 kWh/m² in May across the year — December's 2.38 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.4Moderate
32.4Moderate
42.4Moderate
52.4Moderate
62.4Moderate
72.4Moderate
82.4Moderate
92.4Moderate
102.4Moderate
112.4Moderate
122.4Moderate
132.4Moderate
142.4Moderate
152.4Moderate
162.4Moderate
172.4Moderate
182.4Moderate
192.4Moderate
202.4Moderate
212.4Moderate
222.4Moderate
232.5Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.5Moderate
292.5Moderate
302.5Moderate
312.6Moderate
Planning a trip in December

Is December a good time to visit Sekimachi?

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 Sekimachi.

What to pack for Sekimachi in December

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

In December, Sekimachi sees daytime highs around 11°C and nights near 3°C. Pack a warm layer. About 8 days see rain.

a warm layer

Sea temperature near Sekimachi 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 68 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 31 to Nov 9 — about 5.4 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct22Refreshing
Nov19Cool
Dec17Cool

UV index in Sekimachi 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 Sekimachi peaks around July 15 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 highVery highModerateJul 15UV 10Jan 1UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in Sekimachi 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 Sekimachi is worst in April — around 22 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1322 µg/m³Dec 1813 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar21Moderate
Apr22Moderate
May21Moderate
Jun19Moderate
Jul15Moderate
Aug14Moderate
Sep14Moderate
Oct15Moderate
Nov15Moderate
Dec13Moderate
Location & terrain

Where is Sekimachi?

Sekimachi sits at 35.5°N, 136.9°E, 51 m above sea level, in Japan. The nearest listed city is Mino, 6.0 km away.

Topography around Sekimachi

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

Within 3 km, the terrain around Sekimachi has only modest variations in elevation — a maximum elevation change of 140 m around an average of 71 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 952 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,037 m.

The land around Sekimachi is covered by artificial surfaces (40%) and trees (37%) within 3 km, trees (59%) and artificial surfaces (27%) within 16 km, and trees (74%) within 80 km.

3 km
140 m
16 km
952 m
80 km
3,037 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Mino 6.0 km · Kakamigahara 9.0 km · Minokamo 10 km · Inuyama 12 km · Yamagata 13 km · Fusō 14 km · Kani 15 km · Gifu 16 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 Sekimachi (35.4833°, 136.9167°, elevation 51 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. 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).