Ōno-hara weather in December

In December, Ōno-hara sees average daytime highs of 11°C and overnight lows near 4°C, with 60 mm of precipitation across 6.7 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 13°C in the first days to 10°C by the end. The sky is clear or mostly clear about 34% 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 Ōno-hara's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Ōno-hara's year-round climate.

Daytime high
11°
10th warmest
Overnight low
3rd coldest
Precipitation
60 mm
6.7 wet days
Daylight
9 h 42 min
7:15 AM – 4:59 PM
Cloud cover
53%
3rd clearest
Wind
10 km/h
2nd windiest
Solar energy
2.27 kWh/m²
Travel score
3.0
out of 10

Ōno-hara is human settlement in Japan.

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 13°C in the first days to 10°C by the end.

A typical December day in Ōno-hara reaches about 11°C in the afternoon and slips back to 4°C overnight — a 7°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 5°C cooler than November and about 2°C warmer than January.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1136
2136
3136
4136
5136
6126
7125
8125
9125
10125
11115
12115
13115
14115
15114
16114
17114
18114
19104
20104
21104
22104
23104
24104
25103
26103
27103
28103
29103
30103
31103

How December really feels in Ōno-hara

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.

Ōno-hara 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 / 506.21101.8
Feb10° / 677.81.510.72.1
Mar13° / 11610.10.511.73.7
Apr18° / 10°1389.8012.85.8
May22° / 15°15810.3013.86.6
Jun25° / 19°23413.9014.25.9
Jul29° / 23°25515.2014.14.8
Aug30° / 24°16914.4013.34.5
Sep27° / 21°18511.7012.26.1
Oct22° / 15°1168011.17.1
Nov16° / 727.2010.25.6
Dec11° / 606.70.39.83.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 25% of December, with mostly cloudy or overcast conditions the remaining 42%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
26040
36040
45941
55941
65941
75842
85842
95743
105743
115743
125743
135743
145644
155644
165644
175644
185644
195644
205644
215743
225743
235743
245842
255842
265941
276040
286040
296040
306040
316040

Chance of precipitation in December

Any precipitationSnow

Ōno-hara gets around 60 mm of rain and snow over 6.7 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 21% and peaks near 25% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1250
2250
3250
4240
5240
6240
7240
8230
9230
10220
11211
12211
13201
14201
15201
16201
17191
18191
19191
20191
21191
22191
23192
24192
25192
26192
27192
28192
29192
30182
31182

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
4991
5991
6991
7991
8991
9991
10991
11991
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 10 km/h in December.

Across December, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 7:04 AM to 7:22 AM, and sunset from 4:57 PM to 5:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:044:57
29.97:054:57
39.87:064:57
49.87:074:57
59.87:084:57
69.87:084:57
79.87:094:57
89.87:104:57
99.87:114:57
109.87:114:57
119.87:124:57
129.77:134:58
139.77:144:58
149.77:144:58
159.77:154:58
169.77:154:59
179.77:164:59
189.77:174:59
199.77:175:00
209.77:185:00
219.77:185:01
229.77:195:01
239.77:195:02
249.77:205:02
259.77:205:03
269.77:205:03
279.77:215:04
289.77:215:04
299.77:215:05
309.77:225:06
319.77:225:06

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.27 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.27 kWh/m² to a high of 5.55 kWh/m² in May across the year — December's 2.27 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.4Moderate
32.4Moderate
42.4Moderate
52.3Moderate
62.3Moderate
72.3Moderate
82.3Moderate
92.3Moderate
102.3Moderate
112.3Moderate
122.3Moderate
132.3Moderate
142.3Moderate
152.2Moderate
162.2Moderate
172.2Moderate
182.2Moderate
192.3Moderate
202.3Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.4Moderate
302.4Moderate
312.4Moderate
Planning a trip in December

Hazard calendar for Ōno-hara

In seasonPeak

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

Ōno-hara sits in the Pacific typhoon belt; the season peaks July–October.

Ōno-hara'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 Ōno-hara?

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

3.0
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 Ōno-hara.

What to pack for Ōno-hara in December

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

In December, Ōno-hara sees daytime highs around 11°C and nights near 4°C. Pack a warm layer. About 7 days see rain.

a warm layer

Sea temperature near Ōno-hara 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 20 km away) is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 13 to Nov 17 — about 5.2 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun20Refreshing
Jul24Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Ōno-hara 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 Ōno-hara peaks around July 13 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 13UV 10Dec 23UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7Very high
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Ōno-hara 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 Ōno-hara is worst in April — around 22 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 1022 µg/m³Oct 1310 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar22Moderate
Apr22Moderate
May20Moderate
Jun17Moderate
Jul13Moderate
Aug12Moderate
Sep11Good
Oct10Good
Nov12Moderate
Dec12Good
Location & terrain

Where is Ōno-hara?

Ōno-hara sits at 34.3°N, 132.3°E, 3 m above sea level, in Japan. The nearest listed city is Miyajima, 5.0 km away.

Topography around Ōno-hara

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

Within 3 km, the terrain around Ōno-hara has significant variations in elevation — a maximum elevation change of 588 m around an average of 111 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,035 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,327 m.

The land around Ōno-hara is covered by trees (60%) and water (25%) within 3 km, trees (54%) and water (34%) within 16 km, and trees (58%) and water (35%) within 80 km.

3 km
588 m
16 km
1,035 m
80 km
1,327 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Miyajima 5.0 km · Ōtake 9.0 km · Hatsukaichi 10 km · Iwakuni 14 km · Etajima 20 km · Hiroshima 21 km · Gion 25 km · Fuchū 25 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 Ōno-hara (34.2833°, 132.2667°, elevation 3 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).