Honjō weather in January

In January, Honjō sees average daytime highs of 11°C and overnight lows near 2°C, with 78 mm of precipitation across 7 wet days and about 10.1 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 11°C through the month. The sky is clear or mostly clear about 45% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of January to 10 h 24 min by month's end. Set against the rest of the year, January is Honjō's 3rd-clearest and 1st-windiest month. For the whole year in context, see Honjō's year-round climate.

Daytime high
11°
12th warmest
Overnight low
1st coldest
Precipitation
78 mm
7 wet days
Daylight
10 h 06 min
7:20 AM – 5:28 PM
Cloud cover
48%
3rd clearest
Wind
10 km/h
1st windiest
Solar energy
2.98 kWh/m²
Travel score
2.9
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 11°C through the month.

A typical January day in Honjō reaches about 11°C in the afternoon and slips back to 2°C overnight — a 9°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, January runs about 2°C cooler than December and about 1°C cooler than February.

-5°10°15°20°151015202531
Avg high (°C)Avg low (°C)
1113
2113
3113
4113
5113
6113
7112
8112
9112
10112
11112
12112
13112
14112
15112
16112
17112
18112
19112
20112
21112
22102
23102
24112
25112
26112
27112
28112
29112
30112
31112

How January really feels in Honjō

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 31 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
31
wind chill below the day's low

The story in January is cold — wind chill drags the overnight "feels like" below the raw low.

Honjō weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 12th-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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 18% of January, with mostly cloudy or overcast conditions the remaining 37%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
27030
37030
46931
56832
66832
76733
86634
96535
106535
116337
126238
136238
146139
156139
165941
175941
185941
195941
205941
215941
225941
235941
246040
256040
266040
276040
286238
296238
306238
316337

Chance of precipitation in January

Any precipitationSnow

Honjō gets around 78 mm of rain and snow over 7 wet days in January, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 23% and peaks near 25% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1170
2180
3181
4181
5191
6191
7201
8201
9211
10211
11222
12232
13232
14242
15242
16252
17252
18252
19252
20252
21252
22252
23252
24252
25252
26252
27242
28241
29231
30231
31231

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January 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 (%)
1991
21000
31000
41000
51000
61000
71000
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
241000
251000
261000
271000
281000
291000
30991
31991

Wind in January

Winds average 10 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 10 km/h on the calmest days to 10 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
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 54 min at the start of January to 10 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over January. Sunrise moves from 7:20 AM to 7:15 AM, and sunset from 5:16 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:205:16
29.97:205:17
310.07:205:17
410.07:205:18
510.07:205:19
610.07:205:20
710.07:215:20
810.07:215:21
910.07:215:22
1010.07:215:23
1110.07:215:23
1210.17:215:24
1310.17:215:25
1410.17:215:26
1510.17:205:27
1610.17:205:28
1710.17:205:28
1810.27:205:29
1910.27:205:30
2010.27:205:31
2110.27:195:32
2210.27:195:33
2310.37:195:34
2410.37:185:35
2510.37:185:35
2610.37:185:36
2710.37:175:37
2810.47:175:38
2910.47:165:39
3010.47:165:40
3110.47:155:41

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.98 kWh/m².

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 — January's 2.98 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.9Moderate
22.9Moderate
32.9Moderate
42.9Moderate
52.9Moderate
62.9Moderate
72.9Moderate
82.9Moderate
92.9Moderate
102.9Moderate
112.9Moderate
122.9Moderate
132.9Moderate
142.9Moderate
152.9Moderate
162.9Moderate
172.9Moderate
182.9Moderate
193.0Moderate
203.0Moderate
213.0Moderate
223.0Moderate
233.0Moderate
243.1Moderate
253.1Moderate
263.1Moderate
273.2Moderate
283.2Moderate
293.2Moderate
303.3Moderate
313.3Moderate
Planning a trip in January

Hazard calendar for Honjō

In seasonPeak

In January, 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 January a good time to visit Honjō?

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

2.9
Sightseeing
12th-best month of the year
0.0
Beach & pool
12th-best month of the year

January is a weaker month for outdoor sightseeing in Honjō.

What to pack for Honjō in January

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

In January, Honjō sees daytime highs around 11°C and nights near 2°C. Pack a warm layer. About 7 days see rain.

a warm layer

Sea temperature near Honjō in January

The nearest coast averages about 20°C in January — 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 January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January 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
January 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).