Hōfu weather in December

In December, Hōfu sees average daytime highs of 11°C and overnight lows near 7°C, with 68 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 13°C in the first days to 10°C by the end. The sky is clear or mostly clear about 22% 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 48 min by month's end. Set against the rest of the year, December is Hōfu's 7th-clearest and 2nd-windiest month. For the whole year in context, see Hōfu's year-round climate.

Daytime high
11°
10th warmest
Overnight low
3rd coldest
Precipitation
68 mm
10.5 wet days
Daylight
9 h 42 min
7:18 AM – 5:02 PM
Cloud cover
60%
7th clearest
Wind
16 km/h
2nd windiest
Solar energy
2.21 kWh/m²
Travel score
2.9
out of 10

Hōfu is city in Yamaguchi Prefecture, Japan.

Density
617/km²
people per km²
Founded
1936

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 Hōfu reaches about 11°C in the afternoon and slips back to 7°C overnight — a 5°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)
1149
2149
3139
4138
5138
6138
7138
8128
9128
10127
11127
12127
13127
14117
15117
16117
17117
18117
19116
20116
21116
22116
23116
24116
25106
26106
27106
28106
29106
30106
31106

How December really feels in Hōfu

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.

Hōfu 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 / 6610.41.2101.8
Feb10° / 759.91.110.72.1
Mar13° / 12310.90.111.73.5
Apr17° / 11°14110.2012.85.4
May21° / 15°16210.1013.76.5
Jun24° / 20°26014.2014.25.9
Jul28° / 24°25214.10145.2
Aug30° / 25°13511.8013.35.0
Sep27° / 22°15610.8012.26.4
Oct22° / 17°1027.4011.17.2
Nov17° / 12°788.2010.25.6
Dec11° / 6810.50.39.82.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% 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 54%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35248
45248
55248
65050
74951
84951
94852
104852
114654
124654
134555
144654
154555
164555
174456
184357
194357
204357
214357
224357
234456
244456
254456
264456
274456
284456
294456
304456
314456

Chance of precipitation in December

Any precipitationSnow

Hōfu gets around 68 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 34% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1320
2330
3330
4330
5340
6340
7340
8340
9340
10340
11340
12331
13331
14331
15331
16331
17331
18331
19331
20331
21331
22331
23332
24332
25342
26332
27332
28332
29332
30322
31322

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
29631
39631
49721
59721
69820
79910
89910
99910
109910
119910
129910
139910
149910
159910
169910
179910
189910
199910
209910
219910
229910
239910
2410000
2510000
2610000
2710000
2810000
2910000
3010000
3110000

Wind in December

Winds average 16 km/h in December.

Across December, daily wind ranges from about 14 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 54 min at the start of December to 9 h 48 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 7:07 AM to 7:24 AM, and sunset from 5:00 PM to 5:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:075:00
29.97:075:00
39.97:085:00
49.97:095:00
59.87:105:00
69.87:115:00
79.87:115:00
89.87:125:00
99.87:135:01
109.87:145:01
119.87:145:01
129.87:155:01
139.87:165:01
149.87:165:02
159.77:175:02
169.77:185:02
179.77:185:03
189.77:195:03
199.77:195:03
209.77:205:04
219.77:205:04
229.77:215:05
239.77:215:05
249.77:225:06
259.77:225:06
269.77:235:07
279.77:235:07
289.77:235:08
299.77:245:08
309.87:245:09
319.87:245:10

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.21 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.21 kWh/m² to a high of 5.51 kWh/m² in May across the year — December's 2.21 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.3Moderate
32.3Moderate
42.3Moderate
52.3Moderate
62.3Moderate
72.3Moderate
82.2Moderate
92.2Moderate
102.2Moderate
112.2Moderate
122.2Moderate
132.2Moderate
142.2Moderate
152.2Moderate
162.2Moderate
172.2Moderate
182.2Moderate
192.2Moderate
202.2Moderate
212.2Moderate
222.2Moderate
232.2Moderate
242.2Moderate
252.2Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in December

Hazard calendar for Hōfu

In seasonPeak

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

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

Hōfu's rainy season runs March–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 Hōfu?

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

2.9
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 Hōfu.

What to pack for Hōfu in December

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

In December, Hōfu sees daytime highs around 11°C and nights near 7°C. Pack a warm layer. Worth having: rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Hōfu 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 20 km away) is warmest in August at about 27°C and coldest in February near 12°C.

It's comfortable for a long swim from Jun 8 to Nov 13 — about 5.2 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb12Bracing
Mar13Bracing
Apr14Bracing
May17Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec16Cool

UV index in Hōfu 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 Hōfu peaks around June 21 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 21UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Hōfu 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 Hōfu is worst in March — around 27 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2026 µg/m³Oct 1212 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb20Moderate
Mar27Moderate
Apr24Moderate
May21Moderate
Jun18Moderate
Jul16Moderate
Aug19Moderate
Sep13Moderate
Oct12Good
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Hōfu?

Hōfu sits at 34.0°N, 131.6°E, 4 m above sea level, in Japan. The nearest listed city is Ogōri-shimogō, 16 km away.

Topography around Hōfu

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

Within 3 km, the terrain around Hōfu has only modest variations in elevation — a maximum elevation change of 225 m around an average of 14 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 649 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,369 m.

The land around Hōfu is covered by artificial surfaces (64%) within 3 km, trees (43%) and water (39%) within 16 km, and water (48%) and trees (45%) within 80 km.

3 km
225 m
16 km
649 m
80 km
1,369 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Ogōri-shimogō 16 km · Yamaguchi 17 km · Tokuyama 23 km · Shūnan 24 km · Kudamatsu 28 km · Ube 31 km · Mine 36 km · Onoda 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 Hōfu (34.05°, 131.5667°, elevation 4 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).