Honjō weather in December

In December, Honjō sees average daytime highs of 13°C and overnight lows near 4°C, with 78 mm of rain across 6.3 wet days and about 9.9 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 15°C in the first days to 12°C by the end. The sky is clear or mostly clear about 53% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 06 min at the start of December to 9 h 54 min by month's end. Set against the rest of the year, December is Honjō's 1st-clearest and 4th-windiest month. For the whole year in context, see Honjō's year-round climate.

Daytime high
13°
10th warmest
Overnight low
3rd coldest
Rainfall
78 mm
6.3 wet days
Daylight
9 h 54 min
7:13 AM – 5:08 PM
Cloud cover
43%
1st clearest
Wind
9 km/h
4th windiest
Solar energy
2.71 kWh/m²
Travel score
4.1
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 15°C in the first days to 12°C by the end.

A typical December day in Honjō reaches about 13°C in the afternoon and slips back to 4°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 17°C. Set against its neighbours, December runs about 5°C cooler than November and about 2°C warmer than January.

-5°10°15°20°151015202531
Avg high (°C)Avg low (°C)
1156
2156
3156
4146
5146
6145
7145
8145
9145
10135
11135
12134
13134
14134
15134
16134
17134
18124
19124
20124
21123
22123
23123
24123
25123
26123
27123
28123
29123
30123
31123

How December really feels in Honjō

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.

Honjō 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 daysDaylight (hours)Travel score
Jan11° / 78710.12.9
Feb12° / 978.110.83.4
Mar15° / 1551211.84.6
Apr20° / 11°1741212.85.9
May23° / 15°20712.713.66.2
Jun25° / 19°41619.814.14.9
Jul29° / 23°26918.613.94.2
Aug30° / 24°23817.813.24.1
Sep27° / 21°27516.512.25.3
Oct23° / 15°15810.511.26.8
Nov18° / 103810.46.1
Dec13° / 786.39.94.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 33%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26436
36436
46436
56436
66535
76535
86535
96535
106634
116634
126634
136634
146634
156634
166634
176634
186733
196733
206733
216733
226832
236832
246931
257030
267030
277030
287030
297129
307129
317129

Chance of precipitation in December

Any precipitation

Honjō gets around 78 mm of rain over 6.3 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 20% and peaks near 27% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
127
226
326
425
525
624
723
823
922
1021
1121
1221
1320
1420
1520
1620
1719
1819
1919
2019
2119
2218
2318
2418
2518
2618
2717
2817
2917
3017
3117

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 (%)
19361
29361
39451
49451
59451
69541
79541
89640
99730
109730
119730
129730
139730
149730
159730
169820
179820
189820
199820
209820
219820
229820
239820
249820
259820
269910
279910
289910
299910
309910
319910

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 06 min 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 12 minutes over December. Sunrise moves from 7:03 AM to 7:20 AM, and sunset from 5:06 PM to 5:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.17:035:06
210.07:035:06
310.07:045:06
410.07:055:06
510.07:065:06
610.07:075:06
710.07:075:06
810.07:085:06
910.07:095:07
1010.07:095:07
119.97:105:07
129.97:115:07
139.97:115:07
149.97:125:08
159.97:135:08
169.97:135:08
179.97:145:09
189.97:145:09
199.97:155:09
209.97:155:10
219.97:165:10
229.97:165:11
239.97:175:11
249.97:175:12
259.97:185:12
269.97:185:13
279.97:195:13
289.97:195:14
299.97:195:15
309.97:205:15
319.97:205:16

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.71 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.71 kWh/m² to a high of 5.02 kWh/m² in May across the year — December's 2.71 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.7Moderate
32.7Moderate
42.7Moderate
52.7Moderate
62.7Moderate
72.7Moderate
82.7Moderate
92.7Moderate
102.7Moderate
112.7Moderate
122.7Moderate
132.7Moderate
142.7Moderate
152.7Moderate
162.7Moderate
172.7Moderate
182.7Moderate
192.7Moderate
202.7Moderate
212.7Moderate
222.8Moderate
232.8Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.9Moderate
292.9Moderate
302.9Moderate
312.9Moderate
Planning a trip in December

Hazard calendar for Honjō

In seasonPeak

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

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

Honjō'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 Honjō?

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

4.1
Sightseeing
9th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a reasonable time to visit Honjō for sightseeing.

What to pack for Honjō in December

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

In December, Honjō sees daytime highs around 13°C and nights near 4°C. Worth packing: a warm layer. About 6 days see rain.

a warm layer

Sea temperature near Honjō 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 at the nearest coast (about 30 km away) is warmest in August at about 28°C and coldest in February near 19°C.

It's comfortable for a long swim from Apr 14 to Jan 8 — about 8.9 months when the water holds above 20°C.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan20Cool
Feb19Cool
Mar19Cool
Apr20Refreshing
May22Refreshing
Jun24Refreshing
Jul26Warm
Aug28Warm
Sep27Warm
Oct26Warm
Nov24Refreshing
Dec21Refreshing

UV index in Honjō 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 Honjō 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
Mar7High
Apr8Very high
May9Very high
Jun11Extreme
Jul11Extreme
Aug10Very high
Sep10Very high
Oct7High
Nov5Moderate
Dec3Moderate

Air quality in Honjō 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 Honjō 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 Honjō?

Honjō sits at 32.0°N, 131.3°E, 20 m above sea level, in Japan. The nearest listed city is Miyazaki, 11 km away.

Topography around Honjō

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

Within 3 km, the terrain around Honjō has only modest variations in elevation — a maximum elevation change of 126 m around an average of 35 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 912 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,714 m.

The land around Honjō is covered by trees (49%) and cropland (29%) within 3 km, trees (62%) within 16 km, and trees (62%) and water (30%) within 80 km.

3 km
126 m
16 km
912 m
80 km
1,714 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Miyazaki 11 km · Saito 13 km · Tsuma 14 km · Shintomi 17 km · Takanabe 23 km · Kawaminami 28 km · Mochibaru 32 km · Kobayashi 33 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 Honjō (31.9833°, 131.3333°, elevation 20 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).