Amami weather in January

In January, Amami sees average daytime highs of 17°C and overnight lows near 15°C, with 124 mm of rain across 14.3 wet days and about 10.4 hours of daylight. It is the 12th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 11% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 h 12 min at the start of January to 10 h 36 min by month's end. Set against the rest of the year, January is Amami's 11th-clearest and 1st-windiest month. For the whole year in context, see Amami's year-round climate.

Daytime high
17°
12th warmest
Overnight low
15°
2nd coldest
Rainfall
124 mm
14.3 wet days
Daylight
10 h 24 min
7:20 AM – 5:43 PM
Cloud cover
74%
11th clearest
Wind
26 km/h
1st windiest
Solar energy
2.31 kWh/m²
Travel score
4.7
out of 10

Amami is city in Kagoshima prefecture, Japan.

Density
134/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 17°C through the month.

A typical January day in Amami reaches about 17°C in the afternoon and slips back to 15°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 20°C. Set against its neighbours, January runs about 2°C cooler than December and on par with February.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11815
21715
31715
41715
51715
61715
71715
81715
91715
101715
111715
121715
131715
141715
151715
161715
171715
181715
191715
201715
211715
221714
231714
241614
251614
261614
271614
281614
291614
301614
311614

How January really feels in Amami

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.

Amami weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan17° / 15°12414.310.44.7
Feb17° / 15°12112.8114.8
Mar19° / 16°15714.511.85.3
Apr21° / 19°15813.212.75.8
May23° / 22°2101413.46.0
Jun26° / 25°32017.613.85.2
Jul29° / 27°12810.713.65.5
Aug29° / 27°14213.8135.2
Sep28° / 26°17515.212.25.6
Oct25° / 24°14912.611.36.5
Nov22° / 20°11810.910.66.4
Dec19° / 17°11012.910.25.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 16% of January, with mostly cloudy or overcast conditions the remaining 72%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33169
43070
53070
63070
72971
82971
92872
102872
112872
122872
132872
142773
152773
162773
172773
182674
192674
202674
212674
222773
232674
242674
252674
262674
272674
282575
292575
302674
312575

Chance of precipitation in January

Any precipitation

Amami gets around 124 mm of rain over 14.3 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 48% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
141
242
342
443
544
644
745
846
947
1047
1148
1248
1348
1448
1548
1648
1748
1848
1948
2048
2148
2247
2347
2447
2547
2646
2746
2846
2946
3046
3146

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 82% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1811360
2811360
3811360
4811360
5821260
6821260
7821260
8821260
9811360
10811360
11811360
12811360
13811360
14801361
15811351
16811351
17811351
18811351
19821341
20821341
21831241
22831241
23831241
24831241
25831241
26831241
27831241
28831241
29831151
30831151
31831151

Wind in January

Winds average 26 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 25 km/h on the calmest days to 26 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
125breezy
225breezy
325breezy
425breezy
525breezy
625breezy
725breezy
826breezy
926breezy
1026breezy
1126breezy
1226breezy
1326breezy
1426breezy
1526breezy
1626breezy
1726breezy
1826breezy
1926breezy
2026breezy
2126breezy
2226breezy
2326breezy
2426breezy
2526breezy
2626breezy
2726breezy
2826breezy
2926breezy
3026breezy
3126breezy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 12 min at the start of January to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over January. Sunrise moves from 7:18 AM to 7:16 AM, and sunset from 5:32 PM to 5:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.27:185:32
210.27:195:33
310.27:195:33
410.27:195:34
510.37:195:35
610.37:205:35
710.37:205:36
810.37:205:37
910.37:205:37
1010.37:205:38
1110.37:205:39
1210.37:205:40
1310.37:205:40
1410.47:205:41
1510.47:205:42
1610.47:205:43
1710.47:205:43
1810.47:205:44
1910.47:205:45
2010.47:195:46
2110.57:195:47
2210.57:195:47
2310.57:195:48
2410.57:195:49
2510.57:185:50
2610.57:185:51
2710.67:185:51
2810.67:175:52
2910.67:175:53
3010.67:165:54
3110.67:165:55

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.31 kWh/m².

For context, solar energy here swings from a low near 2.19 kWh/m² to a high of 6.23 kWh/m² in July across the year — January's 2.31 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.2Moderate
22.2Moderate
32.2Moderate
42.2Moderate
52.2Moderate
62.2Moderate
72.2Moderate
82.2Moderate
92.2Moderate
102.2Moderate
112.2Moderate
122.2Moderate
132.2Moderate
142.2Moderate
152.3Moderate
162.3Moderate
172.3Moderate
182.3Moderate
192.3Moderate
202.3Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.4Moderate
252.4Moderate
262.4Moderate
272.4Moderate
282.4Moderate
292.5Moderate
302.5Moderate
312.5Moderate
Planning a trip in January

Hazard calendar for Amami

In seasonPeak

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

Amami 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 January a good time to visit Amami?

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

4.7
Sightseeing
12th-best month of the year
1.1
Beach & pool
12th-best month of the year

January is a reasonable time to visit Amami for sightseeing.

What to pack for Amami in January

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

In January, Amami sees daytime highs around 17°C and nights near 15°C. Pack rain gear. Worth having: a warm layer and a windbreaker. About 14 days see rain.

rain geara warm layera windbreaker

Sea temperature near Amami in January

The nearest coast averages about 22°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 29°C and coldest in February near 21°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb21Refreshing
Mar21Refreshing
Apr22Refreshing
May24Refreshing
Jun26Warm
Jul28Tropical
Aug29Tropical
Sep28Tropical
Oct27Warm
Nov25Warm
Dec23Refreshing

UV index in Amami in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Amami peaks around July 14 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 14UV 11Jan 10UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar8Very high
Apr9Very high
May9Very high
Jun11Extreme
Jul12Extreme
Aug10Extreme
Sep10Extreme
Oct7Very high
Nov6High
Dec4Moderate

Air quality in Amami 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 Amami is worst in April — around 17 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (July, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1017 µg/m³Jul 178 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb15Moderate
Mar17Moderate
Apr17Moderate
May14Moderate
Jun9Good
Jul8Good
Aug9Good
Sep9Good
Oct9Good
Nov10Good
Dec10Good
Location & terrain

Where is Amami?

Amami sits at 28.4°N, 129.5°E, 21 m above sea level, in Japan. The nearest listed city is Naze, 2.0 km away.

TsuhaNagoYakushimaIshikawaUrumaGushikawaKatsuren-haebaru

Topography around Amami

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

Within 3 km, the terrain around Amami has significant variations in elevation — a maximum elevation change of 376 m around an average of 130 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 517 m; within 80 km, large variations in elevation — a maximum elevation change of 682 m.

The land around Amami is covered by trees (82%) within 3 km, water (59%) and trees (39%) within 16 km, and water (95%) within 80 km.

3 km
376 m
16 km
517 m
80 km
682 m
treesartificial surfaceswater
January weather nearby: Naze 2.0 km · Tsuha 236 km · Nago 246 km · Yakushima 250 km · Ishikawa 273 km · Uruma 275 km · Gushikawa 276 km · Katsuren-haebaru 278 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 Amami (28.3769°, 129.4938°, elevation 21 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).