Furukawa weather in December

In December, Furukawa sees average daytime highs of 7°C and overnight lows near 1°C, with 58 mm of precipitation across 9.6 wet days and about 9.4 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 9°C in the first days to 6°C by the end. The sky is clear or mostly clear about 32% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 30 min at the start of December to 9 h 18 min by month's end. Set against the rest of the year, December is Furukawa's 2nd-clearest and 4th-windiest month. For the whole year in context, see Furukawa's year-round climate.

Daytime high
10th warmest
Overnight low
3rd coldest
Precipitation
58 mm
9.6 wet days
Daylight
9 h 18 min
6:53 AM – 4:12 PM
Cloud cover
56%
2nd clearest
Wind
12 km/h
4th windiest
Solar energy
2.07 kWh/m²
Travel score
1.1
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 9°C in the first days to 6°C by the end.

A typical December day in Furukawa reaches about 7°C in the afternoon and slips back to 1°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 3°C and 11°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)
1103
2102
392
492
592
692
792
882
981
1081
1181
1281
1371
1471
1571
1671
1771
1871
1970
2070
2170
2260
2360
2460
2560
2660
2760
2860
2960
3060
3160

How December really feels in Furukawa

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 31 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
31
wind chill below the day's low

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

Furukawa 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 / -2°569.26.19.60.0
Feb / -2°488.14.910.50.3
Mar / 89113.311.71.8
Apr14° / 9711.40.6134.2
May19° / 12°10911.4014.15.8
Jun22° / 16°13212.8014.65.9
Jul26° / 20°18916.7014.45.4
Aug27° / 22°16515.5013.55.5
Sep24° / 18°16814012.35.9
Oct19° / 11°14110.70115.9
Nov13° / 658.50.29.93.8
Dec / 589.63.89.41.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 24% of December, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25347
35248
45248
55248
65248
75248
85248
95347
105347
115347
125347
135347
145446
155446
165545
175545
185644
195644
205743
215743
225941
235941
246040
256040
266040
276139
286139
296139
306139
316139

Chance of precipitation in December

Any precipitationSnow

Furukawa gets around 58 mm of rain and snow over 9.6 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 31% and peaks near 33% on the wettest days, and about 4 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1304
2305
3306
4316
5317
6328
7329
83310
93311
103311
113312
123312
133313
143313
153213
163213
173214
183114
193114
203014
213014
223014
232915
242915
252915
262916
272916
282917
292917
302918
312918

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 (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 11 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 30 min at the start of December to 9 h 18 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 6:41 AM to 6:59 AM, and sunset from 4:11 PM to 4:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.56:414:11
29.56:424:11
39.56:434:11
49.56:444:11
59.46:444:11
69.46:454:11
79.46:464:11
89.46:474:11
99.46:484:11
109.46:494:11
119.46:494:11
129.36:504:11
139.36:514:11
149.36:514:11
159.36:524:12
169.36:534:12
179.36:534:12
189.36:544:13
199.36:554:13
209.36:554:13
219.36:564:14
229.36:564:14
239.36:574:15
249.36:574:15
259.36:574:16
269.36:584:16
279.36:584:17
289.36:584:18
299.36:594:18
309.36:594:19
319.36:594:20

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.07 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.07 kWh/m² to a high of 5.35 kWh/m² in May across the year — December's 2.07 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.1Moderate
22.1Moderate
32.1Moderate
42.1Moderate
52.1Moderate
62.1Moderate
72.0Moderate
82.0Moderate
92.0Moderate
102.0Moderate
112.0Moderate
122.0Moderate
132.0Moderate
142.1Moderate
152.1Moderate
162.1Moderate
172.1Moderate
182.1Moderate
192.1Moderate
202.1Moderate
212.1Moderate
222.1Moderate
232.2Moderate
242.2Moderate
252.2Moderate
262.2Moderate
272.2Moderate
282.2Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in December

Hazard calendar for Furukawa

In seasonPeak

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

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

Furukawa's rainy season runs March–October, 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 Furukawa?

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

1.1
Sightseeing
10th-best month of the year
0.0
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Furukawa.

What to pack for Furukawa in December

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

In December, Furukawa sees daytime highs around 7°C and nights near 1°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Furukawa in December

The nearest coast averages about 14°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 43 km away) is warmest in August at about 23°C and coldest in March near 8°C.

It's comfortable for a long swim from Jul 10 to Oct 8 — about 3 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb9Bracing
Mar8Bracing
Apr10Bracing
May13Bracing
Jun17Cool
Jul21Refreshing
Aug23Refreshing
Sep22Refreshing
Oct19Cool
Nov16Cool
Dec14Bracing

UV index in Furukawa in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Furukawa peaks around August 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 16UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Furukawa 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 Furukawa is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1621 µg/m³Dec 1710 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar20Moderate
Apr21Moderate
May20Moderate
Jun14Moderate
Jul12Good
Aug10Good
Sep10Good
Oct11Good
Nov11Good
Dec9Good
Location & terrain

Where is Furukawa?

Furukawa sits at 38.6°N, 141.0°E, 23 m above sea level, in Japan. The nearest listed city is Ōsaki, 2.0 km away.

Topography around Furukawa

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

Within 3 km, the terrain around Furukawa has only modest variations in elevation — a maximum elevation change of 17 m around an average of 19 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 238 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,892 m.

The land around Furukawa is covered by artificial surfaces (48%) and cropland (43%) within 3 km, trees (44%) and cropland (41%) within 16 km, and trees (59%) and water (25%) within 80 km.

3 km
17 m
16 km
238 m
80 km
1,892 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Ōsaki 2.0 km · Kogota 9.0 km · Naka-niida 9.0 km · Kogota-ekimae 11 km · Wakuya 16 km · Yoshioka 16 km · Kurihara 20 km · Tomiya 21 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 Furukawa (38.5717°, 140.9556°, elevation 23 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).