Gobō weather in September

In September, Gobō sees average daytime highs of 27°C and overnight lows near 22°C, with 191 mm of rain across 13.3 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 25°C by the end. The sky is clear or mostly clear about 34% 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 Gobō's 9th-clearest and 9th-windiest month. For the whole year in context, see Gobō's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
22°
10th coldest
Rainfall
191 mm
13.3 wet days
Daylight
12 h 12 min
5:47 AM – 6:00 PM
Cloud cover
60%
9th clearest
Wind
13 km/h
9th windiest
Solar energy
4.36 kWh/m²
Travel score
5.9
out of 10

Gobō is city in Wakayama Prefecture, Japan.

Density
535/km²
people per km²
Founded
1954

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 25°C by the end.

A typical September day in Gobō reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 24°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)
12924
22923
32823
42823
52823
62823
72823
82823
92823
102822
112722
122722
132722
142722
152722
162722
172721
182621
192621
202621
212621
222621
232620
242520
252520
262520
272520
282520
292519
302419

How September really feels in Gobō

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.

Gobō weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 8711.22.3101.8
Feb10° / 9410.8210.72.1
Mar13° / 13812.80.311.73.5
Apr17° / 11°13911.3012.85.4
May21° / 16°16011013.76.3
Jun24° / 20°26514.9014.25.7
Jul28° / 24°22414.30145.3
Aug29° / 25°13213013.35.0
Sep27° / 22°19113.3012.25.9
Oct22° / 16°19511.1011.16.6
Nov17° / 11°1108.7010.25.5
Dec12° / 91101.19.83.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% 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 53%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14951
24951
34951
44852
54852
64852
74852
84852
94753
104753
114753
124852
134753
144852
154753
164654
174753
184654
194753
204654
214654
224654
234753
244654
254852
264852
274852
284852
294951
304951

Chance of precipitation in September

Any precipitation

Gobō gets around 191 mm of rain over 13.3 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 46% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
145
245
346
446
546
646
746
846
946
1046
1146
1245
1345
1444
1543
1643
1742
1842
1942
2042
2142
2242
2342
2442
2542
2642
2743
2843
2943
3043

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 33% of days. Sticky, muggy-or-worse air turns up on roughly 64% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101724599
201725589
302826568
402927548
5021028537
6021029527
7031130506
8131231485
9141331465
10141432444
11151632424
12261733403
13271833383
14281932363
15392132332
163102231312
174112431292
184122530271
195132629251
206142729241
217152828221
227162927201
238173026191
249173125171
2510183124160
2611193224140
2711193323130
2812203323120
2913213322110
301422332290

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 12 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
112calm
212calm
312calm
412calm
512calm
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light 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 5:37 AM to 5:58 AM, and sunset from 6:21 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:376:21
212.75:386:20
312.75:386:18
412.65:396:17
512.65:406:16
612.65:406:14
712.55:416:13
812.55:426:11
912.55:426:10
1012.45:436:09
1112.45:446:07
1212.45:456:06
1312.35:456:04
1412.35:466:03
1512.25:476:01
1612.25:476:00
1712.25:485:58
1812.15:495:57
1912.15:505:56
2012.15:505:54
2112.05:515:53
2212.05:525:51
2312.05:525:50
2411.95:535:48
2511.95:545:47
2611.85:555:45
2711.85:555:44
2811.85:565:43
2911.75:575:41
3011.75:585:40

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.36 kWh/m².

For context, solar energy here swings from a low near 2.45 kWh/m² to a high of 5.59 kWh/m² in May across the year — September's 4.36 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.8Bright
54.8Bright
64.7Bright
74.7Bright
84.7Bright
94.6Bright
104.6Bright
114.5Bright
124.5Bright
134.5Bright
144.4Bright
154.4Bright
164.4Bright
174.3Bright
184.3Bright
194.3Bright
204.2Bright
214.2Bright
224.1Bright
234.1Bright
244.1Bright
254.0Bright
264.0Bright
274.0Moderate
283.9Moderate
293.9Moderate
303.9Moderate
Planning a trip in September

Hazard calendar for Gobō

In seasonPeak

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

Gobō 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 Gobō?

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

5.9
Sightseeing
3rd-best month of the year
6.0
Beach & pool
2nd-best month of the year

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

What to pack for Gobō in September

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

In September, Gobō sees daytime highs around 27°C and nights near 22°C. Worth packing: light clothes and rain gear. About 13 days see rain.

light clothesrain gear

Sea temperature near Gobō 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 offshore is warmest in August at about 27°C and coldest in February near 15°C.

It's comfortable for a long swim from May 23 to Dec 3 — about 6.4 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb15Cool
Mar16Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Warm
Nov22Refreshing
Dec19Cool

UV index in Gobō 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 Gobō peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJun 23UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May9Very high
Jun10Extreme
Jul10Extreme
Aug7High
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Gobō 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 Gobō is worst in April — around 19 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1319 µg/m³Dec 1310 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb15Moderate
Mar19Moderate
Apr19Moderate
May17Moderate
Jun14Moderate
Jul10Good
Aug10Good
Sep10Good
Oct10Good
Nov11Good
Dec10Good
Location & terrain

Where is Gobō?

Gobō sits at 33.9°N, 135.2°E, 23 m above sea level, in Japan. The nearest listed city is Itogawa, 18 km away.

Topography around Gobō

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

Within 3 km, the terrain around Gobō has only modest variations in elevation — a maximum elevation change of 182 m around an average of 23 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 644 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,878 m.

The land around Gobō is covered by trees (38%) and artificial surfaces (28%) within 3 km, trees (49%) and water (44%) within 16 km, and water (47%) and trees (46%) within 80 km.

3 km
182 m
16 km
644 m
80 km
1,878 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Itogawa 18 km · Arida 23 km · Tanabe 25 km · Shirahama 28 km · Kainan 30 km · Asso 30 km · Minato 37 km · Wakayama 39 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 Gobō (33.8815°, 135.1696°, elevation 23 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).