Gōtsuchō weather in September

In September, Gōtsuchō sees average daytime highs of 26°C and overnight lows near 21°C, with 185 mm of rain across 13.4 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 24°C by the end. The sky is clear or mostly clear about 28% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Gōtsuchō's 6th-clearest and 9th-windiest month. For the whole year in context, see Gōtsuchō's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
21°
10th coldest
Rainfall
185 mm
13.4 wet days
Daylight
12 h 12 min
5:59 AM – 6:12 PM
Cloud cover
63%
6th clearest
Wind
12 km/h
9th windiest
Solar energy
4.11 kWh/m²
Travel score
6.1
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 24°C by the end.

A typical September day in Gōtsuchō reaches about 26°C in the afternoon and slips back to 21°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 29°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)
12823
22823
32823
42823
52823
62722
72722
82722
92722
102722
112722
122722
132621
142621
152621
162621
172621
182620
192520
202520
212520
222520
232520
242519
252519
262419
272419
282419
292419
302418

How September really feels in Gōtsuchō

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.

Gōtsuchō 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 daysSnow daysDaylight (hours)Travel score
Jan / 11617.869.91.1
Feb / 10115.14.910.71.4
Mar12° / 12714.21.311.72.9
Apr17° / 10°11111.1012.95.2
May21° / 15°12210.4013.86.4
Jun24° / 19°17412.6014.36.2
Jul28° / 23°22014.7014.15.2
Aug29° / 25°14313.6013.34.8
Sep26° / 21°18513.4012.26.1
Oct21° / 16°10810.2011.16.6
Nov16° / 11°9611.4010.24.8
Dec11° / 12417.139.72.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14258
24258
34357
44357
54258
64258
74258
84357
94456
104555
114555
124555
134555
144555
154555
164555
174555
184555
194555
204654
214555
224555
234654
244654
254654
264654
274654
284654
294654
304753

Chance of precipitation in September

Any precipitation

Gōtsuchō gets around 185 mm of rain over 13.4 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 44% and peaks near 48% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
147
247
348
448
548
648
748
848
948
1048
1147
1247
1346
1445
1544
1643
1743
1842
1942
2041
2141
2241
2340
2440
2540
2640
2740
2840
2940
3039

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 59% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101930546
2011031526
3021132505
4021233485
5031333474
6031434454
7041535433
8051735413
9051836393
10061936372
11172036342
12182136322
131102235301
142112335281
152122434261
163142534241
173152633221
184162732201
194172831190
205192930170
216203029150
226213128140
237223127120
248233226110
25924322590
261025332480
271126332370
281226332260
291327332150
301528332050

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 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 66 minutes over September. Sunrise moves from 5:48 AM to 6:10 AM, and sunset from 6:34 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:486:34
212.75:486:33
312.75:496:31
412.75:506:30
512.65:516:28
612.65:516:27
712.65:526:25
812.55:536:24
912.55:546:22
1012.45:546:21
1112.45:556:19
1212.45:566:18
1312.35:576:16
1412.35:576:15
1512.35:586:13
1612.25:596:12
1712.26:006:10
1812.16:006:09
1912.16:016:07
2012.16:026:06
2112.06:036:04
2212.06:036:03
2312.06:046:01
2411.96:056:00
2511.96:065:58
2611.86:075:57
2711.86:075:55
2811.86:085:54
2911.76:095:53
3011.76:105:51

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.11 kWh/m².

For context, solar energy here swings from a low near 2 kWh/m² to a high of 5.67 kWh/m² in May across the year — September's 4.11 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.4Bright
44.4Bright
54.4Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.3Bright
114.2Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.0Bright
214.0Bright
224.0Bright
234.0Moderate
244.0Moderate
253.9Moderate
263.9Moderate
273.9Moderate
283.9Moderate
293.9Moderate
303.8Moderate
Planning a trip in September

Hazard calendar for Gōtsuchō

In seasonPeak

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

Gōtsuchō 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 Gōtsuchō?

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

6.1
Sightseeing
4th-best month of the year
5.8
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Gōtsuchō for sightseeing.

What to pack for Gōtsuchō in September

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

In September, Gōtsuchō sees daytime highs around 26°C and nights near 21°C. Worth packing: light clothes and rain gear. About 13 days see rain.

light clothesrain gear

Sea temperature near Gōtsuchō 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 16 km away) is warmest in August at about 27°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 10 to Nov 17 — about 5.3 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun21Refreshing
Jul24Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Gōtsuchō in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Gōtsuchō peaks around July 17 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJul 17UV 10Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul11Extreme
Aug10Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Gōtsuchō 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 Gōtsuchō is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 923 µg/m³Oct 1011 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb18Moderate
Mar23Moderate
Apr23Moderate
May20Moderate
Jun16Moderate
Jul12Good
Aug11Good
Sep11Good
Oct11Good
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Gōtsuchō?

Gōtsuchō sits at 35.0°N, 132.2°E, 31 m above sea level, in Japan. The nearest listed city is Hamada, 19 km away.

Topography around Gōtsuchō

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

Within 3 km, the terrain around Gōtsuchō has significant variations in elevation — a maximum elevation change of 460 m around an average of 65 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 616 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,327 m.

The land around Gōtsuchō is covered by trees (55%) and water (29%) within 3 km, trees (49%) and water (47%) within 16 km, and trees (61%) and water (34%) within 80 km.

3 km
460 m
16 km
616 m
80 km
1,327 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Hamada 19 km · Ōdachō-ōda 33 km · Yae 46 km · Masuda 51 km · Aki-takata 56 km · Miyoshi 61 km · Izumo 63 km · Unnan 67 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 Gōtsuchō (35.0086°, 132.2257°, elevation 31 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).