Nishinoomote weather in September

In September, Nishinoomote sees average daytime highs of 27°C and overnight lows near 26°C, with 213 mm of rain across 15 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 26°C by the end. The sky is clear or mostly clear about 39% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 42 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Nishinoomote's 4th-clearest and 8th-windiest month. For the whole year in context, see Nishinoomote's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
26°
10th coldest
Rainfall
213 mm
15 wet days
Daylight
12 h 12 min
6:05 AM – 6:16 PM
Cloud cover
57%
4th clearest
Wind
24 km/h
8th windiest
Solar energy
4.62 kWh/m²
Travel score
5.8
out of 10

Nishinoomote is city in Kagoshima Prefecture, Japan.

Density
87/km²
people per km²
Founded
1958

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 28°C in the first days to 26°C by the end.

A typical September day in Nishinoomote reaches about 27°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°C. Set against its neighbours, September runs about 1°C cooler than August and about 3°C warmer than October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12827
22827
32827
42826
52826
62826
72826
82826
92826
102826
112726
122726
132726
142726
152726
162726
172726
182725
192725
202725
212725
222725
232625
242625
252625
262625
272625
282624
292624
302624

How September really feels in Nishinoomote

Once humidity and wind are folded in, September 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

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

Nishinoomote weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 11°10510.110.24.2
Feb15° / 12°11210.410.94.2
Mar17° / 14°17814.311.84.9
Apr20° / 17°1871212.75.8
May22° / 21°20312.313.56.2
Jun25° / 23°42218.4145.2
Jul28° / 26°18112.713.85.8
Aug28° / 27°13813.913.15.4
Sep27° / 26°2131512.25.8
Oct24° / 22°15511.711.26.8
Nov21° / 18°13010.710.46.3
Dec17° / 14°969.2105.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15347
25446
35446
45446
55347
65347
75347
85347
95347
105248
115248
125248
135347
145347
155347
165347
175248
185248
195248
205149
215149
225248
235248
245248
255248
265248
275347
285446
295446
305446

Chance of precipitation in September

Any precipitation

Nishinoomote gets around 213 mm of rain over 15 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 49% and peaks near 52% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
151
251
352
452
552
652
752
852
952
1051
1151
1250
1350
1449
1549
1649
1748
1848
1948
2048
2148
2248
2347
2447
2546
2646
2745
2845
2945
3045

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 89% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
100073657
200073756
300083854
400084052
500194150
600194248
7001104346
8002114344
9002124342
10003124441
11004144339
12014154337
13015164335
14016174233
15017184232
16028204130
17029214028
180210224026
190311233924
200312243822
210313253820
220414263719
230415273717
240416283615
250517293614
260517303612
270618303511
280619313410
29071931349
30172032338

Wind in September

Winds average 24 km/h in September.

Across September, daily wind ranges from about 22 km/h on the calmest days to 25 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
122breezy
222breezy
322breezy
422breezy
522breezy
622breezy
722breezy
822breezy
922breezy
1023breezy
1123breezy
1223breezy
1323breezy
1423breezy
1523breezy
1624breezy
1724breezy
1824breezy
1924breezy
2024breezy
2125breezy
2225breezy
2325breezy
2425breezy
2525breezy
2625breezy
2725breezy
2825breezy
2925breezy
3025breezy

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 42 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over September. Sunrise moves from 5:56 AM to 6:13 AM, and sunset from 6:35 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:566:35
212.65:576:34
312.65:576:33
412.65:586:32
512.55:586:30
612.55:596:29
712.56:006:28
812.46:006:26
912.46:016:25
1012.46:016:24
1112.36:026:22
1212.36:026:21
1312.36:036:20
1412.26:046:18
1512.26:046:17
1612.26:056:16
1712.26:056:15
1812.16:066:13
1912.16:076:12
2012.16:076:11
2112.06:086:09
2212.06:086:08
2312.06:096:07
2411.96:106:05
2511.96:106:04
2611.96:116:03
2711.86:116:01
2811.86:126:00
2911.86:135:59
3011.76:135:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.62 kWh/m².

For context, solar energy here swings from a low near 2.4 kWh/m² to a high of 5.79 kWh/m² in July across the year — September's 4.62 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.1Bright
35.1Bright
45.1Bright
55.0Bright
65.0Bright
75.0Bright
84.9Bright
94.9Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.7Bright
154.7Bright
164.7Bright
174.6Bright
184.6Bright
194.5Bright
204.5Bright
214.5Bright
224.4Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.3Bright
284.2Bright
294.2Bright
304.2Bright
Planning a trip in September

Hazard calendar for Nishinoomote

In seasonPeak

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

Nishinoomote 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 September a good time to visit Nishinoomote?

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

5.8
Sightseeing
4th-best month of the year
6.0
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Nishinoomote for sightseeing.

What to pack for Nishinoomote in September

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

In September, Nishinoomote sees daytime highs around 27°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection and a windbreaker. About 15 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Nishinoomote in September

The nearest coast averages about 28°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 17 km away) is warmest in August at about 29°C and coldest in February near 19°C.

It's comfortable for a long swim from Mar 22 to Jan 20 — about 10 months when the water holds above 20°C.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan20Refreshing
Feb19Cool
Mar20Cool
Apr21Refreshing
May23Refreshing
Jun25Warm
Jul27Warm
Aug29Tropical
Sep28Warm
Oct26Warm
Nov24Warm
Dec22Refreshing

UV index in Nishinoomote in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Nishinoomote peaks around June 22 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 highHighModerateJun 22UV 11Jan 10UV 4
UV index (midday)Level
Jan4Moderate
Feb5High
Mar7High
Apr9Very high
May9Very high
Jun11Extreme
Jul11Extreme
Aug10Very high
Sep10Extreme
Oct7High
Nov5Moderate
Dec4Moderate

Air quality in Nishinoomote in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Nishinoomote is worst in April — around 19 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (July, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1319 µg/m³Jul 209 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb16Moderate
Mar18Moderate
Apr19Moderate
May17Moderate
Jun13Moderate
Jul9Good
Aug10Good
Sep9Good
Oct10Good
Nov10Good
Dec10Good
Location & terrain

Where is Nishinoomote?

Nishinoomote sits at 30.7°N, 131.0°E, 38 m above sea level, in Japan. The nearest listed city is Yakushima, 51 km away.

Topography around Nishinoomote

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

Within 3 km, the terrain around Nishinoomote has only modest variations in elevation — a maximum elevation change of 164 m around an average of 40 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 286 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,893 m.

The land around Nishinoomote is covered by trees (50%) and water (33%) within 3 km, water (72%) and trees (24%) within 16 km, and water (85%) within 80 km.

3 km
164 m
16 km
286 m
80 km
1,893 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Yakushima 51 km · Ibusuki 65 km · Kanoya 74 km · Shibushi 83 km · Minamikyushu 86 km · Kushima 87 km · Makurazaki 88 km · Tarumizu 88 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 Nishinoomote (30.7333°, 131°, elevation 38 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).