Ibusuki weather in January

In January, Ibusuki sees average daytime highs of 12°C and overnight lows near 7°C, with 88 mm of rain across 8.4 wet days and about 10.2 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 12°C through the month. The sky is clear or mostly clear about 32% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 hours at the start of January to 10 h 30 min by month's end. Set against the rest of the year, January is Ibusuki's 4th-clearest and 1st-windiest month. For the whole year in context, see Ibusuki's year-round climate.

Daytime high
12°
12th warmest
Overnight low
1st coldest
Rainfall
88 mm
8.4 wet days
Daylight
10 h 12 min
7:21 AM – 5:32 PM
Cloud cover
56%
4th clearest
Wind
16 km/h
1st windiest
Solar energy
2.79 kWh/m²
Travel score
3.5
out of 10

Ibusuki is city in Kagoshima Prefecture, Japan.

Density
262/km²
people per km²
Founded
2006

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 12°C through the month.

A typical January day in Ibusuki reaches about 12°C in the afternoon and slips back to 7°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 16°C. Set against its neighbours, January runs about 2°C cooler than December and about 1°C cooler than February.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1137
2137
3137
4137
5137
6137
7137
8137
9137
10137
11137
12127
13127
14127
15127
16127
17127
18127
19127
20126
21126
22126
23126
24126
25126
26126
27126
28126
29126
30126
31126

How January really feels in Ibusuki

Once humidity and wind are folded in, January 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

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Ibusuki 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
Jan12° / 888.410.23.5
Feb13° / 108910.93.8
Mar16° / 10°17112.711.84.8
Apr20° / 14°19011.912.75.9
May23° / 18°21011.913.66.4
Jun26° / 22°46920.3144.8
Jul29° / 25°26218.313.84.3
Aug30° / 26°18217.813.14.1
Sep28° / 23°2241512.25.3
Oct24° / 19°1329.611.27.1
Nov19° / 14°1198.910.46.4
Dec15° / 897.4104.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 19% of January, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35644
45545
55545
65446
75347
85347
95248
105149
115050
125050
134951
144951
154951
164951
174951
184852
194852
204852
214951
224951
234951
244951
254951
264951
274951
284951
294951
304951
314951

Chance of precipitation in January

Any precipitation

Ibusuki gets around 88 mm of rain over 8.4 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 rain averages around 27% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
122
222
323
423
523
624
724
825
926
1026
1127
1227
1328
1429
1529
1630
1730
1830
1930
2030
2130
2230
2330
2430
2529
2629
2728
2828
2927
3026
3126

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 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1973
2973
3973
4973
5973
6973
7973
8964
9964
10964
11964
12964
13964
14964
15973
16973
17973
18973
19973
20973
21973
22973
23973
24973
25973
26982
27982
28982
29982
30982
31982

Wind in January

Winds average 16 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 16 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
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light 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 January

DaylightNight

Daylight runs from about 10 hours at the start of January to 10 h 30 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 7:16 AM, and sunset from 5:21 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.07:205:21
210.07:215:21
310.07:215:22
410.07:215:23
510.07:215:23
610.07:215:24
710.17:225:25
810.17:225:26
910.17:225:26
1010.17:225:27
1110.17:225:28
1210.17:225:29
1310.17:225:30
1410.17:225:30
1510.27:225:31
1610.27:215:32
1710.27:215:33
1810.27:215:34
1910.27:215:35
2010.27:215:35
2110.37:205:36
2210.37:205:37
2310.37:205:38
2410.37:195:39
2510.37:195:40
2610.47:195:41
2710.47:185:41
2810.47:185:42
2910.47:175:43
3010.57:175:44
3110.57:165:45

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.79 kWh/m².

For context, solar energy here swings from a low near 2.57 kWh/m² to a high of 5.3 kWh/m² in July across the year — January's 2.79 kWh/m² sits near the bottom.

01234151015202531
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
192.8Moderate
202.8Moderate
212.8Moderate
222.8Moderate
232.9Moderate
242.9Moderate
252.9Moderate
262.9Moderate
273.0Moderate
283.0Moderate
293.0Moderate
303.0Moderate
313.1Moderate
Planning a trip in January

Hazard calendar for Ibusuki

In seasonPeak

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

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

Ibusuki's rainy season runs June–July, 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 Ibusuki?

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

3.5
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 Ibusuki.

What to pack for Ibusuki in January

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

In January, Ibusuki sees daytime highs around 12°C and nights near 7°C. Worth packing: a warm layer and rain gear. About 8 days see rain.

a warm layerrain gear

Sea temperature near Ibusuki in January

The nearest coast averages about 19°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 28°C and coldest in February near 18°C.

It's comfortable for a long swim from Apr 17 to Jan 2 — about 8.6 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan19Cool
Feb18Cool
Mar19Cool
Apr20Cool
May22Refreshing
Jun24Refreshing
Jul27Warm
Aug28Tropical
Sep28Warm
Oct26Warm
Nov23Refreshing
Dec21Refreshing

UV index in Ibusuki 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 Ibusuki peaks around June 22 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 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 10UV 3
UV index (midday)Level
Jan3Moderate
Feb5High
Mar7High
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug9Very high
Sep10Extreme
Oct7High
Nov5Moderate
Dec4Moderate

Air quality in Ibusuki 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 Ibusuki is worst in April — around 23 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1423 µg/m³Oct 1012 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb19Moderate
Mar22Moderate
Apr23Moderate
May21Moderate
Jun17Moderate
Jul12Moderate
Aug14Moderate
Sep12Moderate
Oct12Moderate
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Ibusuki?

Ibusuki sits at 31.2°N, 130.7°E, 2 m above sea level, in Japan. The nearest listed city is Minamikyushu, 22 km away.

Topography around Ibusuki

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

Within 3 km, the terrain around Ibusuki has significant variations in elevation — a maximum elevation change of 308 m around an average of 29 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 917 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,640 m.

The land around Ibusuki is covered by water (50%) and trees (28%) within 3 km, water (66%) and trees (27%) within 16 km, and water (66%) and trees (29%) within 80 km.

3 km
308 m
16 km
917 m
80 km
1,640 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Minamikyushu 22 km · Kanoya 25 km · Tarumizu 28 km · Makurazaki 32 km · Kaseda-shirakame 38 km · Kagoshima 38 km · Minamisatsuma 39 km · Ijūin 49 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 Ibusuki (31.2333°, 130.65°, elevation 2 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).