Minamikyushu weather in September

In September, Minamikyushu sees average daytime highs of 29°C and overnight lows near 23°C, with 219 mm of rain across 14.4 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 27°C by the end. The sky is clear or mostly clear about 30% 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 Minamikyushu's 4th-clearest and 11th-windiest month. For the whole year in context, see Minamikyushu's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
23°
10th coldest
Rainfall
219 mm
14.4 wet days
Daylight
12 h 12 min
6:07 AM – 6:18 PM
Cloud cover
61%
4th clearest
Wind
13 km/h
11th windiest
Solar energy
4.33 kWh/m²
Travel score
5.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 30°C in the first days to 27°C by the end.

A typical September day in Minamikyushu reaches about 29°C in the afternoon and slips back to 23°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 31°C. Set against its neighbours, September runs about 2°C cooler than August and about 4°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13025
23025
33025
43025
53025
63024
73024
82924
92924
102924
112924
122924
132924
142924
152924
162923
172923
182823
192823
202823
212823
222823
232822
242822
252822
262722
272722
282722
292722
302721

How September really feels in Minamikyushu

Once humidity and wind are folded in, September averages 12 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
12
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Minamikyushu weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan13° / 908.810.23.6
Feb14° / 1089.410.93.9
Mar17° / 10°1661311.84.9
Apr20° / 14°18612.112.75.9
May24° / 18°20412.113.66.4
Jun26° / 22°48420.3144.8
Jul30° / 25°27918.713.84.0
Aug31° / 26°17616.713.14.0
Sep29° / 23°21914.412.25.2
Oct25° / 19°1219.411.27.1
Nov20° / 14°1228.910.46.5
Dec15° / 917.7104.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14753
24753
34753
44753
54852
64852
74753
84753
94753
104753
114852
124852
134852
144951
155050
165050
174951
184951
195050
204951
214951
224951
235050
245050
255050
265050
275050
285050
295050
305149

Chance of precipitation in September

Any precipitation

Minamikyushu gets around 219 mm of rain over 14.4 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 47% and peaks near 57% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
157
257
356
456
555
655
754
853
953
1052
1151
1250
1349
1448
1547
1646
1746
1845
1944
2044
2143
2242
2342
2441
2540
2640
2739
2839
2939
3038

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 83% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1001114840
2001124938
3001134937
4002145035
5002145034
6002155132
7003165031
8013174929
9014194828
10114204727
11115214626
12126224524
13127234323
14129244222
151310254021
161311263919
172412273818
182414273616
192515283515
202516293414
212618293312
222719303111
232720303010
24282131299
25292231288
26292331277
272102431276
282112530266
292122630255
303122730245

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

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 5:58 AM to 6:16 AM, and sunset from 6:38 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:586:38
212.65:586:37
312.65:596:35
412.66:006:34
512.56:006:33
612.56:016:32
712.56:016:30
812.46:026:29
912.46:036:28
1012.46:036:26
1112.46:046:25
1212.36:046:24
1312.36:056:22
1412.36:066:21
1512.26:066:19
1612.26:076:18
1712.26:076:17
1812.16:086:15
1912.16:096:14
2012.16:096:13
2112.06:106:11
2212.06:116:10
2312.06:116:09
2411.96:126:07
2511.96:126:06
2611.96:136:05
2711.86:146:03
2811.86:146:02
2911.86:156:01
3011.76:165:59

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.33 kWh/m².

For context, solar energy here swings from a low near 2.45 kWh/m² to a high of 5.2 kWh/m² in August across the year — September's 4.33 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.6Bright
64.6Bright
74.6Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.4Bright
154.4Bright
164.4Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.1Bright
274.1Bright
284.1Bright
294.1Bright
304.0Bright
Planning a trip in September

Hazard calendar for Minamikyushu

In seasonPeak

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

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

Minamikyushu'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 September a good time to visit Minamikyushu?

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

5.2
Sightseeing
5th-best month of the year
6.1
Beach & pool
1st-best month of the year

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

What to pack for Minamikyushu in September

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

In September, Minamikyushu sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. About 14 days see rain.

light clothesrain gear

Sea temperature near Minamikyushu in September

The nearest coast averages about 27°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 16 km away) is warmest in August at about 28°C and coldest in February near 18°C.

It's comfortable for a long swim from Apr 24 to Dec 26 — about 8.1 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan19Cool
Feb18Cool
Mar18Cool
Apr20Cool
May21Refreshing
Jun24Refreshing
Jul27Warm
Aug28Tropical
Sep27Warm
Oct25Warm
Nov23Refreshing
Dec21Refreshing

UV index in Minamikyushu 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 Minamikyushu peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 23UV 11Jan 1UV 4
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar7High
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug9Very high
Sep10Extreme
Oct6High
Nov5Moderate
Dec4Moderate

Air quality in Minamikyushu 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 Minamikyushu 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 Minamikyushu?

Minamikyushu sits at 31.3°N, 130.5°E, 160 m above sea level, in Japan. The nearest listed city is Kaseda-shirakame, 15 km away.

Topography around Minamikyushu

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

Within 3 km, the terrain around Minamikyushu has significant variations in elevation — a maximum elevation change of 305 m around an average of 214 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 610 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,640 m.

The land around Minamikyushu is covered by trees (80%) within 3 km, trees (62%) and water (24%) within 16 km, and water (65%) and trees (30%) within 80 km.

3 km
305 m
16 km
610 m
80 km
1,640 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Kaseda-shirakame 15 km · Makurazaki 16 km · Minamisatsuma 17 km · Ibusuki 22 km · Kagoshima 26 km · Tarumizu 28 km · Ijūin 30 km · Umeki 36 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 Minamikyushu (31.3469°, 130.4561°, elevation 160 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).