Amami weather in August

In August, Amami sees average daytime highs of 29°C and overnight lows near 27°C, with 142 mm of rain across 13.8 wet days and about 13 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 40% of the time in August, and the air most often feels miserable.

Daylight stretches from about 13 h 24 min at the start of August to 12 h 36 min by month's end. Set against the rest of the year, August is Amami's 2nd-clearest and 10th-windiest month. For the whole year in context, see Amami's year-round climate.

Daytime high
29°
1st warmest
Overnight low
27°
12th coldest
Rainfall
142 mm
13.8 wet days
Daylight
13 hours
5:55 AM – 6:57 PM
Cloud cover
56%
2nd clearest
Wind
21 km/h
10th windiest
Solar energy
5.85 kWh/m²
Travel score
5.2
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 August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical August day in Amami reaches about 29°C in the afternoon and slips back to 27°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, August runs on par with July and about 1°C warmer than September.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12927
22927
32927
42927
52927
62927
72927
82927
92927
102927
112927
122927
132927
142927
152927
162927
172927
182927
192927
202927
212927
222927
232927
242927
252927
262927
272927
282927
292827
302827
312827

How August really feels in Amami

Once humidity and wind are folded in, August averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Amami weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 7th-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35050
45149
55149
65050
75050
85050
95050
105050
115050
125050
135050
145149
155149
165149
175248
185347
195446
205446
215545
225545
235545
245545
255545
265545
275446
285545
295446
305446
315347

Chance of precipitation in August

Any precipitation

Amami gets around 142 mm of rain over 13.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 44% and peaks near 49% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
140
241
342
443
543
644
745
845
946
1046
1146
1246
1346
1445
1545
1644
1744
1843
1943
2043
2143
2243
2344
2444
2544
2645
2746
2846
2947
3048
3149

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the miserable band about 88% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
10892
20892
30892
40892
50793
60793
70793
80793
90793
100694
110793
120793
130793
140892
150892
160991
170991
1801090
1901189
2001288
2111386
2211485
2311584
2411683
2521781
2621880
2721979
2822078
2932176
3032275
3142373

Wind in August

Winds average 21 km/h in August.

Across August, daily wind ranges from about 20 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
121breezy
221breezy
321breezy
421breezy
521breezy
621breezy
721breezy
821breezy
921breezy
1021breezy
1121breezy
1221breezy
1321breezy
1421breezy
1521breezy
1621breezy
1721breezy
1821breezy
1920breezy
2020breezy
2120breezy
2220breezy
2320breezy
2420breezy
2520breezy
2620breezy
2720breezy
2820breezy
2920breezy
3020breezy
3120breezy

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 24 min at the start of August to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over August. Sunrise moves from 5:47 AM to 6:03 AM, and sunset from 7:09 PM to 6:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:477:09
213.35:487:08
313.35:487:08
413.35:497:07
513.35:497:06
613.35:507:05
713.25:507:05
813.25:517:04
913.25:527:03
1013.25:527:02
1113.15:537:01
1213.15:537:00
1313.15:547:00
1413.15:546:59
1513.05:556:58
1613.05:556:57
1713.05:566:56
1813.05:576:55
1912.95:576:54
2012.95:586:53
2112.95:586:52
2212.95:596:51
2312.85:596:50
2412.86:006:49
2512.86:006:48
2612.86:016:46
2712.76:016:45
2812.76:026:44
2912.76:026:43
3012.76:036:42
3112.66:036:41

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.85 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 — August's 5.85 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.0Intense
46.0Intense
56.0Bright
66.0Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.7Bright
265.7Bright
275.7Bright
285.6Bright
295.6Bright
305.5Bright
315.5Bright
Planning a trip in August

Hazard calendar for Amami

In seasonPeak

In August, 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 August a good time to visit Amami?

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

5.2
Sightseeing
9th-best month of the year
6.5
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Amami for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Amami in August

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

In August, Amami sees daytime highs around 29°C and nights near 27°C. Pack light clothes. Worth having: rain gear, sun protection and a windbreaker. About 14 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Amami in August

The nearest coast averages about 29°C in August — 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 August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). 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 August

GoodModeratePoorUnhealthyVery unhealthy

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