Ikeno weather in December

In December, Ikeno sees average daytime highs of 9°C and overnight lows near 2°C, with 99 mm of precipitation across 13.9 wet days and about 9.7 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 11°C in the first days to 7°C by the end. The sky is clear or mostly clear about 28% 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 Ikeno's 3rd-clearest and 5th-windiest month. For the whole year in context, see Ikeno's year-round climate.

Daytime high
10th warmest
Overnight low
3rd coldest
Precipitation
99 mm
13.9 wet days
Daylight
9 h 36 min
7:01 AM – 4:38 PM
Cloud cover
55%
3rd clearest
Wind
9 km/h
5th windiest
Solar energy
2.28 kWh/m²
Travel score
1.5
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 11°C in the first days to 7°C by the end.

A typical December day in Ikeno reaches about 9°C in the afternoon and slips back to 2°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 4°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)
1114
2114
3114
4114
5104
6103
7103
8103
9103
1093
1193
1292
1392
1492
1592
1682
1782
1882
1982
2081
2181
2281
2381
2471
2571
2671
2771
2871
2971
3070
3170

How December really feels in Ikeno

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 20 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
20
wind chill below the day's low

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

Ikeno 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 daysSnow daysDaylight (hours)Travel score
Jan / -1°9414.399.90.3
Feb / -0°9212.37.510.70.7
Mar11° / 15713.73.111.72.5
Apr16° / 18012.80.212.94.8
May21° / 13°21213.2013.86.0
Jun24° / 17°27015.9014.35.6
Jul28° / 22°36119.7014.14.5
Aug29° / 23°22316.7013.34.5
Sep26° / 19°27614.6012.25.9
Oct20° / 13°19312011.16.2
Nov14° / 118110.110.14.2
Dec / 9913.95.19.71.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 30% of December, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25842
35842
45842
55743
65743
75743
85743
95743
105644
115743
125644
135644
145644
155644
165644
175743
185743
195743
205842
215941
225941
235941
245941
255941
265941
275941
285941
295941
305941
315842

Chance of precipitation in December

Any precipitationSnow

Ikeno gets around 99 mm of rain and snow over 13.9 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 45% and peaks near 47% on the wettest days, and about 5 days bring snow. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1394
2394
3395
4406
5407
6418
7429
84210
94311
104412
114513
124514
134615
144616
154717
164717
174718
184719
194719
204720
214720
224721
234722
244622
254623
264623
274624
284625
294626
304626
314627

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 9 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 10 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
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

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 6:50 AM to 7:08 AM, and sunset from 4:37 PM to 4:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.86:504:37
29.86:514:37
39.76:524:37
49.76:534:37
59.76:534:37
69.76:544:37
79.76:554:37
89.76:564:37
99.76:564:37
109.76:574:37
119.76:584:37
129.66:594:37
139.66:594:38
149.67:004:38
159.67:014:38
169.67:014:38
179.67:024:39
189.67:024:39
199.67:034:39
209.67:044:40
219.67:044:40
229.67:054:41
239.67:054:41
249.67:054:42
259.67:064:42
269.67:064:43
279.67:074:43
289.67:074:44
299.67:074:45
309.67:074:45
319.67:084:46

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.28 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.28 kWh/m² to a high of 5.37 kWh/m² in May across the year — December's 2.28 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.3Moderate
22.3Moderate
32.3Moderate
42.3Moderate
52.3Moderate
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
242.4Moderate
252.4Moderate
262.4Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.5Moderate
Planning a trip in December

Hazard calendar for Ikeno

In seasonPeak

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

Ikeno 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 Ikeno?

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

1.5
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 Ikeno.

What to pack for Ikeno in December

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

In December, Ikeno sees daytime highs around 9°C and nights near 2°C. Pack a warm layer. Worth having: rain gear. About 14 days see rain.

a warm layerrain gear

Sea temperature near Ikeno 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 at the nearest coast (about 62 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
Jul26Warm
Aug27Warm
Sep26Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Ikeno 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 Ikeno peaks around July 15 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 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 highVery highModerateJul 15UV 10Jan 10UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in Ikeno 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 Ikeno is worst in April — around 26 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1125 µg/m³Aug 1817 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb20Moderate
Mar25Moderate
Apr26Moderate
May25Moderate
Jun21Moderate
Jul17Moderate
Aug17Moderate
Sep17Moderate
Oct18Moderate
Nov18Moderate
Dec16Moderate
Location & terrain

Where is Ikeno?

Ikeno sits at 35.4°N, 136.6°E, 22 m above sea level, in Japan. The nearest listed city is Gōdo, 2.0 km away.

Topography around Ikeno

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

Within 3 km, the terrain around Ikeno has significant variations in elevation — a maximum elevation change of 280 m around an average of 35 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,364 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,394 m.

The land around Ikeno is covered by artificial surfaces (43%) and cropland (34%) within 3 km, trees (53%) and artificial surfaces (26%) within 16 km, and trees (64%) within 80 km.

3 km
280 m
16 km
1,364 m
80 km
2,394 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Gōdo 2.0 km · Ibi 6.0 km · Kurono 6.0 km · Tarui 9.0 km · Mizuho 9.0 km · Kitagata 9.0 km · Ōgaki 10 km · Motosu 10 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 Ikeno (35.4333°, 136.5833°, elevation 22 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).