Ushibukamachi weather in September

In September, Ushibukamachi sees average daytime highs of 27°C and overnight lows near 24°C, with 197 mm of rain across 11.9 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 28°C in the first days to 26°C by the end. The sky is clear or mostly clear about 40% 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 Ushibukamachi's 3rd-clearest and 8th-windiest month. For the whole year in context, see Ushibukamachi's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
24°
10th coldest
Rainfall
197 mm
11.9 wet days
Daylight
12 h 12 min
6:08 AM – 6:20 PM
Cloud cover
55%
3rd clearest
Wind
17 km/h
8th windiest
Solar energy
4.48 kWh/m²
Travel score
6.2
out of 10

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 Ushibukamachi reaches about 27°C in the afternoon and slips back to 24°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 29°C. Set against its neighbours, September runs about 2°C cooler than August and about 4°C warmer than October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12826
22826
32826
42825
52825
62825
72825
82825
92825
102825
112825
122725
132725
142724
152724
162724
172724
182724
192724
202724
212623
222623
232623
242623
252623
262623
272623
282623
292522
302522

How September really feels in Ushibukamachi

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.

Ushibukamachi 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
Jan12° / 9712.910.12.7
Feb12° / 1051210.83.0
Mar15° / 11°14812.411.84.1
Apr18° / 15°16711.612.85.5
May21° / 18°1881113.66.3
Jun24° / 22°44317.414.15.4
Jul28° / 25°32315.813.95.3
Aug29° / 27°17613.813.25.1
Sep27° / 24°19711.912.26.2
Oct23° / 20°1108.311.27.3
Nov18° / 15°1169.710.46.0
Dec14° / 11°10712.19.93.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15149
25149
35050
45149
55149
65149
75149
85347
95347
105347
115347
125446
135446
145446
155446
165446
175446
185446
195446
205347
215446
225446
235446
245446
255545
265545
275545
285545
295545
305545

Chance of precipitation in September

Any precipitation

Ushibukamachi gets around 197 mm of rain over 11.9 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 39% and peaks near 45% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
145
245
344
443
543
643
742
842
941
1041
1140
1239
1339
1438
1538
1638
1737
1837
1937
2037
2137
2237
2337
2436
2536
2636
2736
2836
2935
3035

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 36% of days. Sticky, muggy-or-worse air turns up on roughly 78% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1001164438
2002174536
3002184633
4003194731
5003204729
6014214827
7015224825
8015234823
9016244721
10027254720
11028254618
120310264417
130311274316
140412274115
151514283914
161615293713
171716293612
181718303411
191819303210
20192031309
211102131298
222112231277
232122331267
242132432246
252142432235
262152531225
273162631204
283172631194
294182730193
304192729183

Wind in September

Winds average 17 km/h in September.

Across September, daily wind ranges from about 16 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light 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 5:59 AM to 6:18 AM, and sunset from 6:40 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:596:40
212.75:596:39
312.66:006:38
412.66:016:36
512.66:016:35
612.56:026:34
712.56:036:32
812.56:036:31
912.46:046:30
1012.46:056:28
1112.46:056:27
1212.36:066:26
1312.36:066:24
1412.36:076:23
1512.26:086:21
1612.26:086:20
1712.26:096:19
1812.16:106:17
1912.16:106:16
2012.16:116:15
2112.06:126:13
2212.06:126:12
2312.06:136:10
2411.96:146:09
2511.96:146:08
2611.96:156:06
2711.86:166:05
2811.86:166:04
2911.86:176:02
3011.76:186:01

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.48 kWh/m².

For context, solar energy here swings from a low near 2.21 kWh/m² to a high of 5.36 kWh/m² in May across the year — September's 4.48 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.4Bright
204.4Bright
214.4Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
Planning a trip in September

Hazard calendar for Ushibukamachi

In seasonPeak

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

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

Ushibukamachi'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 Ushibukamachi?

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

6.2
Sightseeing
3rd-best month of the year
6.4
Beach & pool
2nd-best month of the year

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

What to pack for Ushibukamachi in September

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

In September, Ushibukamachi sees daytime highs around 27°C and nights near 24°C. Pack light clothes. Worth having: rain gear. About 12 days see rain.

light clothesrain gear

Sea temperature near Ushibukamachi 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 13 km away) is warmest in August at about 28°C and coldest in February near 17°C.

It's comfortable for a long swim from May 14 to Dec 7 — about 6.8 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan18Cool
Feb17Cool
Mar17Cool
Apr18Cool
May20Refreshing
Jun23Refreshing
Jul26Warm
Aug28Warm
Sep27Warm
Oct24Warm
Nov22Refreshing
Dec19Cool

UV index in Ushibukamachi 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 Ushibukamachi peaks around July 13 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highHighModerateJul 13UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr8Very high
May8Very high
Jun10Very high
Jul11Extreme
Aug9Very high
Sep10Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Ushibukamachi 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 Ushibukamachi is worst in April — around 22 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (July, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 1122 µg/m³Jul 2311 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb18Moderate
Mar22Moderate
Apr22Moderate
May20Moderate
Jun16Moderate
Jul11Good
Aug11Good
Sep11Good
Oct11Good
Nov13Moderate
Dec12Moderate
Location & terrain

Where is Ushibukamachi?

Ushibukamachi sits at 32.2°N, 130.0°E, 109 m above sea level, in Japan. The nearest listed city is Akune, 27 km away.

Topography around Ushibukamachi

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

Within 3 km, the terrain around Ushibukamachi has significant variations in elevation — a maximum elevation change of 285 m around an average of 29 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 435 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,449 m.

The land around Ushibukamachi is covered by water (47%) and trees (44%) within 3 km, water (70%) and trees (27%) within 16 km, and water (60%) and trees (35%) within 80 km.

3 km
285 m
16 km
435 m
80 km
1,449 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Akune 27 km · Hondomachi-hondo 32 km · Amakusa 33 km · Izumi 35 km · Minamata 36 km · Sashiki 47 km · Sendai 50 km · Tsuruda 52 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 Ushibukamachi (32.2014°, 130.0217°, elevation 109 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).