Hondomachi-hondo weather in September

In September, Hondomachi-hondo sees average daytime highs of 29°C and overnight lows near 22°C, with 197 mm of rain across 12.8 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 31°C in the first days to 28°C by the end. The sky is clear or mostly clear about 35% 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 Hondomachi-hondo's 3rd-clearest and 9th-windiest month. For the whole year in context, see Hondomachi-hondo's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
22°
10th coldest
Rainfall
197 mm
12.8 wet days
Daylight
12 h 12 min
6:08 AM – 6:20 PM
Cloud cover
59%
3rd clearest
Wind
9 km/h
9th windiest
Solar energy
4.35 kWh/m²
Travel score
5.0
out of 10

Hondomachi-hondo is dissolved municipality in Amakusa district, Kumamoto prefecture, Japan (1889-1954).

Founded
1898

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 31°C in the first days to 28°C by the end.

A typical September day in Hondomachi-hondo reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 33°C. Set against its neighbours, September runs about 3°C cooler than August and about 5°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73124
83024
93023
103023
113023
123023
133023
143023
153023
162922
172922
182922
192922
202922
212922
222921
232821
242821
252821
262821
272821
282820
292720
302720

How September really feels in Hondomachi-hondo

Once humidity and wind are folded in, September averages 13 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
13
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.

Hondomachi-hondo 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
Jan11° / 698.410.13.0
Feb13° / 879.110.83.4
Mar16° / 13111.511.84.8
Apr21° / 13°1521112.86.1
May25° / 17°18111.113.66.5
Jun27° / 21°44517.414.15.0
Jul31° / 25°36619.113.93.6
Aug32° / 25°18315.513.23.4
Sep29° / 22°19712.812.25.0
Oct25° / 17°1048.111.27.2
Nov19° / 12°1018.410.36.3
Dec14° / 817.49.94.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34852
44753
54753
64654
74753
84753
94852
104852
114951
124951
134951
144951
155050
164951
175050
185050
195050
205050
215050
225050
235050
245248
255248
265248
275248
285248
295347
305347

Chance of precipitation in September

Any precipitation

Hondomachi-hondo gets around 197 mm of rain over 12.8 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 42% and peaks near 49% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
149
249
348
448
547
647
746
846
945
1045
1144
1243
1343
1442
1541
1640
1740
1839
1939
2039
2138
2238
2338
2437
2537
2637
2737
2836
2936
3036

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 32% of days. Sticky, muggy-or-worse air turns up on roughly 71% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1005185126
2006195124
3016215023
4017224921
5017234820
6018254719
7028264617
8129274516
9139284415
101310294214
111411304113
122512303913
132513313712
143614313511
153715323310
164816323110
17481832299
18591932288
195102032267
206112131247
216122231236
226132331215
237142430205
247152430185
258162529174
268182629164
279192628153
289202627143
2910212726133
3011222725122

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

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 6:17 AM, and sunset from 6:40 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:586:40
212.75:596:39
312.65:596:37
412.66:006:36
512.66:016:35
612.56:016:33
712.56:026:32
812.56:036:31
912.46:036:29
1012.46:046:28
1112.46:056:27
1212.36:056:25
1312.36:066:24
1412.36:066:22
1512.26:076:21
1612.26:086:20
1712.26:086:18
1812.16:096:17
1912.16:106:15
2012.16:106:14
2112.06:116:13
2212.06:126:11
2312.06:126:10
2411.96:136:08
2511.96:146:07
2611.96:146:06
2711.86:156:04
2811.86:166:03
2911.86:166:02
3011.76:176:00

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.35 kWh/m².

For context, solar energy here swings from a low near 2.23 kWh/m² to a high of 5.26 kWh/m² in May across the year — September's 4.35 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.1Bright
284.1Bright
294.1Bright
304.1Bright
Planning a trip in September

Hazard calendar for Hondomachi-hondo

In seasonPeak

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

Hondomachi-hondo sits in the Pacific typhoon belt; the season peaks July–October.

Hondomachi-hondo'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 Hondomachi-hondo?

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

5.0
Sightseeing
5th-best month of the year
6.4
Beach & pool
1st-best month of the year

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

What to pack for Hondomachi-hondo in September

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

In September, Hondomachi-hondo sees daytime highs around 29°C and nights near 22°C. Pack light clothes. Worth having: rain gear. About 13 days see rain.

light clothesrain gear

Sea temperature near Hondomachi-hondo in September

The nearest coast averages about 26°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 19 km away) is warmest in August at about 27°C and coldest in February near 15°C.

It's comfortable for a long swim from May 24 to Nov 24 — about 6.1 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Bracing
Mar15Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Refreshing
Nov21Refreshing
Dec18Cool

UV index in Hondomachi-hondo 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 Hondomachi-hondo 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 Hondomachi-hondo 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 Hondomachi-hondo is worst in March — around 24 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (July, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2424 µg/m³Jul 2114 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb20Moderate
Mar24Moderate
Apr24Moderate
May22Moderate
Jun18Moderate
Jul13Moderate
Aug14Moderate
Sep14Moderate
Oct14Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Hondomachi-hondo?

Hondomachi-hondo sits at 32.5°N, 130.2°E, 16 m above sea level, in Japan. The nearest listed city is Amakusa, 2.0 km away.

Topography around Hondomachi-hondo

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

Within 3 km, the terrain around Hondomachi-hondo has significant variations in elevation — a maximum elevation change of 383 m around an average of 82 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 664 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,704 m.

The land around Hondomachi-hondo is covered by trees (76%) within 3 km, trees (54%) and water (40%) within 16 km, and water (49%) and trees (41%) within 80 km.

3 km
383 m
16 km
664 m
80 km
1,704 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Amakusa 2.0 km · Minamishimabara 26 km · Ōyanomachi-noboritate 29 km · Ushibukamachi 32 km · Minamata 35 km · Unzen 35 km · Sashiki 36 km · Shimabara 41 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 Hondomachi-hondo (32.4599°, 130.1671°, elevation 16 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).