Mine weather in December

In December, Mine sees average daytime highs of 12°C and overnight lows near 6°C, with 70 mm of precipitation across 10.5 wet days and about 9.8 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 14°C in the first days to 11°C by the end. The sky is clear or mostly clear about 18% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of December to 9 h 42 min by month's end. Set against the rest of the year, December is Mine's 8th-clearest and 3rd-windiest month. For the whole year in context, see Mine's year-round climate.

Daytime high
12°
10th warmest
Overnight low
3rd coldest
Precipitation
70 mm
10.5 wet days
Daylight
9 h 42 min
7:19 AM – 5:03 PM
Cloud cover
63%
8th clearest
Wind
13 km/h
3rd windiest
Solar energy
2.12 kWh/m²
Travel score
3.1
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 14°C in the first days to 11°C by the end.

A typical December day in Mine reaches about 12°C in the afternoon and slips back to 6°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 5°C cooler than November and about 2°C warmer than January.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1147
2147
3147
4147
5137
6137
7137
8136
9136
10136
11126
12126
13126
14126
15126
16126
17126
18125
19125
20115
21115
22115
23115
24115
25115
26115
27115
28115
29115
30115
31115

How December really feels in Mine

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.

Mine 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
Jan10° / 6810.71.6102.0
Feb11° / 7010.31.310.72.4
Mar14° / 11611.80.311.74.0
Apr19° / 11°12310.3012.86.0
May23° / 15°14010.3013.86.8
Jun26° / 19°23513.8014.25.7
Jul30° / 24°27115.30144.2
Aug32° / 25°16812.7013.33.9
Sep28° / 21°17411.8012.25.7
Oct23° / 15°927.9011.17.2
Nov17° / 10°848.5010.25.7
Dec12° / 7010.50.59.83.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 23% of December, with mostly cloudy or overcast conditions the remaining 59%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24951
34852
44753
54654
64555
74456
84456
94357
104258
114159
124060
134159
144159
154060
164060
173961
183862
193862
203862
213862
223961
233961
243961
253961
263961
273961
283961
293961
303961
313961

Chance of precipitation in December

Any precipitationSnow

Mine gets around 70 mm of rain and snow over 10.5 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 33% and peaks near 35% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1320
2320
3320
4330
5330
6331
7331
8331
9331
10331
11331
12341
13341
14341
15342
16342
17342
18342
19352
20352
21352
22352
23343
24343
25343
26343
27333
28333
29334
30324
31324

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 (%)
19631
29730
39820
49820
59820
69820
79910
89910
99910
109910
119910
129910
139910
149910
159910
169910
1710000
1810000
1910000
2010000
2110000
2210000
2310000
2410000
2510000
2610000
2710000
2810000
2910000
3010000
3110000

Wind in December

Winds average 13 km/h in December.

Across December, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light 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 54 min at the start of December to 9 h 42 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 7:08 AM to 7:26 AM, and sunset from 5:01 PM to 5:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:085:01
29.97:095:01
39.97:105:01
49.87:115:01
59.87:125:01
69.87:125:01
79.87:135:01
89.87:145:01
99.87:155:02
109.87:155:02
119.87:165:02
129.87:175:02
139.77:175:02
149.77:185:03
159.77:195:03
169.77:195:03
179.77:205:04
189.77:215:04
199.77:215:04
209.77:225:05
219.77:225:05
229.77:235:06
239.77:235:06
249.77:245:07
259.77:245:07
269.77:245:08
279.77:255:08
289.77:255:09
299.77:255:09
309.77:265:10
319.77:265:11

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.12 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.12 kWh/m² to a high of 5.65 kWh/m² in May across the year — December's 2.12 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.3Moderate
22.3Moderate
32.2Moderate
42.2Moderate
52.2Moderate
62.2Moderate
72.2Moderate
82.1Moderate
92.1Moderate
102.1Moderate
112.1Moderate
122.1Moderate
132.1Moderate
142.1Moderate
152.1Moderate
162.1Moderate
172.1Moderate
182.1Moderate
192.1Moderate
202.1Moderate
212.1Moderate
222.1Moderate
232.1Moderate
242.1Moderate
252.1Moderate
262.1Moderate
272.2Moderate
282.2Moderate
292.2Moderate
302.2Moderate
312.2Moderate
Planning a trip in December

Hazard calendar for Mine

In seasonPeak

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

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

Mine's rainy season runs April–September, 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 Mine?

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

3.1
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 Mine.

What to pack for Mine in December

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

In December, Mine sees daytime highs around 12°C and nights near 6°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Mine in December

The nearest coast averages about 18°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 32 km away) is warmest in August at about 27°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 7 to Nov 20 — about 5.5 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb14Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Refreshing
Dec18Cool

UV index in Mine 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 Mine peaks around June 20 at about 10 (very high) — 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 — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJun 20UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr8Very high
May8Very high
Jun10Very high
Jul9Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Mine 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 Mine is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 1023 µg/m³Oct 1111 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb19Moderate
Mar23Moderate
Apr23Moderate
May20Moderate
Jun16Moderate
Jul13Moderate
Aug15Moderate
Sep11Good
Oct11Good
Nov13Moderate
Dec12Moderate
Location & terrain

Where is Mine?

Mine sits at 34.2°N, 131.2°E, 123 m above sea level, in Japan. The nearest listed city is Sanyōonoda, 18 km away.

Topography around Mine

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

Within 3 km, the terrain around Mine has significant variations in elevation — a maximum elevation change of 374 m around an average of 153 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 680 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,286 m.

The land around Mine is covered by trees (65%) within 3 km, trees (87%) within 16 km, and water (54%) and trees (38%) within 80 km.

3 km
374 m
16 km
680 m
80 km
1,286 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Sanyōonoda 18 km · Ogōri-shimogō 19 km · Onoda 21 km · Nagato 22 km · Yamaguchi 23 km · Ube 27 km · Hagi 30 km · Hōfu 36 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 Mine (34.1868°, 131.2162°, elevation 123 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).