Hōjō weather in December

In December, Hōjō sees average daytime highs of 12°C and overnight lows near 8°C, with 77 mm of precipitation across 11.2 wet days and about 9.8 hours of daylight. It is the 10th-warmest and 9th-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 30% 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 Hōjō's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Hōjō's year-round climate.

Daytime high
12°
10th warmest
Overnight low
4th coldest
Precipitation
77 mm
11.2 wet days
Daylight
9 h 42 min
7:13 AM – 4:58 PM
Cloud cover
55%
3rd clearest
Wind
16 km/h
2nd windiest
Solar energy
2.35 kWh/m²
Travel score
3.0
out of 10

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 Hōjō reaches about 12°C in the afternoon and slips back to 8°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 15°C. Set against its neighbours, December runs about 5°C cooler than November and about 3°C warmer than January.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
11410
21410
31310
41310
5139
6139
7139
8129
9129
10129
11128
12128
13128
14128
15118
16118
17118
18118
19118
20117
21117
22117
23117
24117
25117
26107
27107
28107
29107
30107
31106

How December really feels in Hōjō

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.

Hōjō weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6410.61.1101.8
Feb10° / 7410.11.210.72.0
Mar12° / 11010.90.211.73.4
Apr17° / 12°12310.4012.85.2
May20° / 16°1419.9013.76.3
Jun23° / 20°22713.8014.25.9
Jul27° / 24°195130145.8
Aug29° / 25°11211.2013.35.6
Sep26° / 23°15911.6012.26.4
Oct21° / 18°1258.6011.17.0
Nov16° / 13°758.6010.25.5
Dec12° / 7711.20.59.83.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% 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 47%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35545
45545
55545
65545
75446
85446
95446
105446
115347
125248
135248
145248
155248
165248
175248
185149
195149
205248
215248
225248
235248
245347
255347
265446
275446
285446
295446
305446
315446

Chance of precipitation in December

Any precipitationSnow

Hōjō gets around 77 mm of rain and snow over 11.2 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 35% and peaks near 37% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1331
2341
3341
4341
5341
6351
7351
8351
9351
10351
11351
12351
13361
14361
15361
16361
17361
18361
19371
20372
21372
22372
23372
24373
25363
26363
27353
28353
29343
30343
31333

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 (%)
1964
2964
3973
4973
5973
6982
7982
8991
9991
10991
11991
12991
13991
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

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
1415light breeze
1515light breeze
1615light 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 7:02 AM to 7:19 AM, and sunset from 4:56 PM to 5:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:024:56
29.97:024:56
39.97:034:56
49.97:044:56
59.87:054:56
69.87:064:56
79.87:064:56
89.87:074:56
99.87:084:56
109.87:094:56
119.87:094:56
129.87:104:56
139.87:114:57
149.87:114:57
159.87:124:57
169.77:134:58
179.77:134:58
189.77:144:58
199.77:144:59
209.77:154:59
219.77:154:59
229.77:165:00
239.77:165:00
249.77:175:01
259.77:175:01
269.77:185:02
279.77:185:03
289.77:185:03
299.87:195:04
309.87:195:04
319.87:195:05

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.35 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.35 kWh/m² to a high of 5.66 kWh/m² in May across the year — December's 2.35 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.5Moderate
42.4Moderate
52.4Moderate
62.4Moderate
72.4Moderate
82.4Moderate
92.4Moderate
102.4Moderate
112.4Moderate
122.3Moderate
132.3Moderate
142.3Moderate
152.3Moderate
162.3Moderate
172.3Moderate
182.3Moderate
192.3Moderate
202.3Moderate
212.3Moderate
222.4Moderate
232.4Moderate
242.4Moderate
252.4Moderate
262.4Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.5Moderate
Planning a trip in December

Hazard calendar for Hōjō

In seasonPeak

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

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

Pacific typhoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Hōjō?

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 Hōjō.

What to pack for Hōjō in December

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

In December, Hōjō sees daytime highs around 12°C and nights near 8°C. Pack a warm layer. Worth having: rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Hōjō 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 18 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 12 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
Jun21Refreshing
Jul24Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Hōjō 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 Hōjō peaks around July 11 at about 10 (extreme) — 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 highExtremeVery highModerateJul 11UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Hōjō 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 Hōjō 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).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1523 µg/m³Oct 1711 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar21Moderate
Apr23Moderate
May21Moderate
Jun19Moderate
Jul15Moderate
Aug15Moderate
Sep12Moderate
Oct11Good
Nov12Good
Dec11Good
Location & terrain

Where is Hōjō?

Hōjō sits at 34.0°N, 132.8°E, 7 m above sea level, in Japan. The nearest listed city is Matsuyama, 15 km away.

Topography around Hōjō

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

Within 3 km, the terrain around Hōjō has significant variations in elevation — a maximum elevation change of 277 m around an average of 27 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,205 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,895 m.

The land around Hōjō is covered by water (39%) and trees (26%) within 3 km, water (50%) and trees (41%) within 16 km, and trees (57%) and water (36%) within 80 km.

3 km
277 m
16 km
1,205 m
80 km
1,895 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Matsuyama 15 km · Masaki-chō 22 km · Tōon 23 km · Haramachi 23 km · Imabari 23 km · Iyo 26 km · Kure 34 km · Saijō 38 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 Hōjō (33.9766°, 132.7777°, elevation 7 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).