Kawaminami weather in December

In December, Kawaminami sees average daytime highs of 14°C and overnight lows near 7°C, with 70 mm of rain across 5.8 wet days and about 9.9 hours of daylight. It is the 10th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 16°C in the first days to 13°C by the end. The sky is clear or mostly clear about 58% 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 Kawaminami's 1st-clearest and 5th-windiest month. For the whole year in context, see Kawaminami's year-round climate.

Daytime high
14°
10th warmest
Overnight low
3rd coldest
Rainfall
70 mm
5.8 wet days
Daylight
9 h 54 min
7:13 AM – 5:07 PM
Cloud cover
39%
1st clearest
Wind
8 km/h
5th windiest
Solar energy
2.68 kWh/m²
Travel score
4.7
out of 10

Kawaminami is town in Koyu district, Miyazaki prefecture, Japan.

Density
170/km²
people per km²
Founded
1953

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 16°C in the first days to 13°C by the end.

A typical December day in Kawaminami reaches about 14°C in the afternoon and slips back to 7°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 17°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)
1169
2169
3169
4159
5159
6158
7158
8158
9158
10148
11148
12147
13147
14147
15147
16147
17147
18137
19137
20137
21137
22136
23136
24136
25136
26136
27136
28136
29136
30136
31136

How December really feels in Kawaminami

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.

Kawaminami weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 716.410.13.5
Feb13° / 86810.83.7
Mar15° / 13111.411.84.6
Apr19° / 12°15811.612.85.9
May23° / 17°19412.613.66.2
Jun25° / 21°37718.414.15.1
Jul29° / 25°27017.813.94.2
Aug30° / 25°26619.413.23.9
Sep28° / 23°29016.812.25.2
Oct23° / 17°16610.711.26.8
Nov19° / 12°978.210.46.4
Dec14° / 705.89.94.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 58% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26733
36634
46733
56832
66832
76931
86931
97030
107030
117129
127129
137129
147129
157129
167129
177030
187030
197129
207129
217129
227129
237228
247228
257228
267327
277327
287426
297426
307426
317525

Chance of precipitation in December

Any precipitation

Kawaminami gets around 70 mm of rain over 5.8 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 19% and peaks near 25% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
125
224
324
423
523
622
722
821
920
1020
1119
1219
1318
1418
1518
1618
1717
1817
1917
2017
2117
2217
2317
2417
2517
2617
2716
2816
2916
3016
3116

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 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19082
29172
39271
49361
59451
69451
79541
89541
99640
109730
119730
129730
139730
149730
159820
169820
179820
189820
199820
209820
219820
229820
239910
249910
259910
269910
279910
289910
299910
309910
319910

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
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 7:02 AM to 7:20 AM, and sunset from 5:05 PM to 5:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.07:025:05
210.07:035:05
310.07:045:05
410.07:055:05
510.07:065:05
610.07:065:05
710.07:075:05
810.07:085:05
99.97:085:05
109.97:095:06
119.97:105:06
129.97:115:06
139.97:115:06
149.97:125:07
159.97:125:07
169.97:135:07
179.97:145:07
189.97:145:08
199.97:155:08
209.97:155:09
219.97:165:09
229.97:165:10
239.97:175:10
249.97:175:11
259.97:185:11
269.97:185:12
279.97:185:12
289.97:195:13
299.97:195:13
309.97:195:14
319.97:205:15

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.68 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.68 kWh/m² to a high of 5.14 kWh/m² in May across the year — December's 2.68 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.7Moderate
32.6Moderate
42.6Moderate
52.6Moderate
62.6Moderate
72.6Moderate
82.6Moderate
92.6Moderate
102.6Moderate
112.7Moderate
122.7Moderate
132.7Moderate
142.7Moderate
152.7Moderate
162.7Moderate
172.7Moderate
182.7Moderate
192.7Moderate
202.7Moderate
212.7Moderate
222.7Moderate
232.7Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.8Moderate
292.8Moderate
302.8Moderate
312.9Moderate
Planning a trip in December

Hazard calendar for Kawaminami

In seasonPeak

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

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

Kawaminami's rainy season runs May–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 Kawaminami?

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

4.7
Sightseeing
7th-best month of the year
0.1
Beach & pool
10th-best month of the year

December is a reasonable time to visit Kawaminami for sightseeing.

What to pack for Kawaminami in December

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

In December, Kawaminami sees daytime highs around 14°C and nights near 7°C. Worth packing: a warm layer. About 6 days see rain.

a warm layer

Sea temperature near Kawaminami in December

The nearest coast averages about 21°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 28°C and coldest in February near 18°C.

It's comfortable for a long swim from Apr 22 to Jan 1 — about 8.4 months when the water holds above 20°C.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan19Cool
Feb18Cool
Mar18Cool
Apr20Cool
May22Refreshing
Jun24Refreshing
Jul26Warm
Aug28Warm
Sep27Warm
Oct25Warm
Nov23Refreshing
Dec21Refreshing

UV index in Kawaminami 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 Kawaminami peaks around June 22 at about 11 (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 — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 22UV 11Jan 1UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr8Very high
May9Very high
Jun11Extreme
Jul11Extreme
Aug10Very high
Sep10Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Kawaminami 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 Kawaminami is worst in March — around 26 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (July, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2025 µg/m³Jul 2214 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb20Moderate
Mar26Moderate
Apr23Moderate
May22Moderate
Jun18Moderate
Jul14Moderate
Aug14Moderate
Sep14Moderate
Oct15Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Kawaminami?

Kawaminami sits at 32.2°N, 131.5°E, 37 m above sea level, in Japan. The nearest listed city is Takanabe, 6.0 km away.

Topography around Kawaminami

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

Within 3 km, the terrain around Kawaminami has only modest variations in elevation — a maximum elevation change of 109 m around an average of 57 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,401 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,714 m.

The land around Kawaminami is covered by cropland (39%) and trees (37%) within 3 km, trees (42%) and water (38%) within 16 km, and trees (63%) and water (30%) within 80 km.

3 km
109 m
16 km
1,401 m
80 km
1,714 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Takanabe 6.0 km · Shintomi 14 km · Tsuma 14 km · Saito 16 km · Honjō 28 km · Hyūga 29 km · Miyazaki 31 km · Kadogawa 35 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 Kawaminami (32.1833°, 131.5167°, elevation 37 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).