Kumano weather in September

In September, Kumano sees average daytime highs of 25°C and overnight lows near 20°C, with 344 mm of rain across 18.9 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 23°C by the end. The sky is clear or mostly clear about 23% of the time in September, and the air most often feels muggy.

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 Kumano's 9th-clearest and 8th-windiest month. For the whole year in context, see Kumano's year-round climate.

Daytime high
25°
3rd warmest
Overnight low
20°
10th coldest
Rainfall
344 mm
18.9 wet days
Daylight
12 h 12 min
5:44 AM – 5:56 PM
Cloud cover
68%
9th clearest
Wind
8 km/h
8th windiest
Solar energy
3.89 kWh/m²
Travel score
5.3
out of 10

Kumano is city in Mie Prefecture, Japan.

Density
43/km²
people per km²
Founded
2005

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 27°C in the first days to 23°C by the end.

A typical September day in Kumano reaches about 25°C in the afternoon and slips back to 20°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 28°C. Set against its neighbours, September runs about 3°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12722
22722
32721
42721
52721
62721
72621
82621
92621
102621
112620
122620
132620
142520
152520
162520
172520
182519
192519
202419
212419
222419
232418
242418
252418
262418
272318
282318
292317
302317

How September really feels in Kumano

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.

Kumano weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 927.22.2101.2
Feb / 1018.32.410.71.6
Mar12° / 172121.311.73.1
Apr17° / 185120.112.85.0
May21° / 13°21714.2013.75.7
Jun23° / 18°33518.6014.25.0
Jul27° / 22°30320.30144.6
Aug28° / 23°28420.1013.34.5
Sep25° / 20°34418.9012.25.3
Oct20° / 14°29914.1011.15.8
Nov15° / 1419.3010.24.9
Dec10° / 9370.89.82.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% 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 62%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13862
23862
33862
43961
53862
63862
73862
83763
93763
103664
113763
123862
133862
143862
153763
163862
173862
183664
193763
203763
213862
223862
233862
243961
253862
263862
273862
283961
293961
303961

Chance of precipitation in September

Any precipitation

Kumano gets around 344 mm of rain over 18.9 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 63% and peaks near 67% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
166
267
367
467
567
667
767
867
967
1067
1166
1266
1365
1464
1563
1663
1762
1862
1961
2060
2160
2259
2359
2458
2558
2658
2758
2858
2957
3057

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 34% of days. Sticky, muggy-or-worse air turns up on roughly 55% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
103143647
203143745
303153843
413163941
513174039
614184037
714194135
824194133
925204231
1025214229
1136224227
1237234126
1348244024
1459254022
15510263920
16611273719
17712283617
18813293516
19915293314
201016303213
211117303011
221218312910
23132031289
24132132268
25142232257
26152333236
27162433225
28172533214
29182533194
30202633183

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

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 5:33 AM to 5:54 AM, and sunset from 6:17 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:336:17
212.75:346:16
312.75:346:15
412.65:356:13
512.65:366:12
612.65:376:10
712.55:376:09
812.55:386:08
912.55:396:06
1012.45:396:05
1112.45:406:03
1212.45:416:02
1312.35:416:00
1412.35:425:59
1512.25:435:58
1612.25:445:56
1712.25:445:55
1812.15:455:53
1912.15:465:52
2012.15:465:50
2112.05:475:49
2212.05:485:47
2312.05:495:46
2411.95:495:44
2511.95:505:43
2611.85:515:42
2711.85:525:40
2811.85:525:39
2911.75:535:37
3011.75:545:36

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.89 kWh/m².

For context, solar energy here swings from a low near 2.7 kWh/m² to a high of 5.24 kWh/m² in May across the year — September's 3.89 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.4Bright
24.3Bright
34.3Bright
44.3Bright
54.3Bright
64.2Bright
74.2Bright
84.1Bright
94.1Bright
104.1Bright
114.0Bright
124.0Bright
134.0Moderate
143.9Moderate
153.9Moderate
163.9Moderate
173.9Moderate
183.8Moderate
193.8Moderate
203.8Moderate
213.7Moderate
223.7Moderate
233.7Moderate
243.6Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.5Moderate
293.5Moderate
303.5Moderate
Planning a trip in September

Hazard calendar for Kumano

In seasonPeak

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

Kumano 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 Kumano?

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

5.3
Sightseeing
3rd-best month of the year
4.8
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Kumano for sightseeing.

What to pack for Kumano in September

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

In September, Kumano sees daytime highs around 25°C and nights near 20°C. Pack rain gear. Worth having: light clothes. About 19 days see rain.

rain gearlight clothes

Sea temperature near Kumano 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 17°C.

It's comfortable for a long swim from May 17 to Dec 4 — about 6.6 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb17Cool
Mar17Cool
Apr18Cool
May20Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Refreshing
Nov22Refreshing
Dec19Cool

UV index in Kumano 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 Kumano peaks around July 13 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 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJul 13UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May9Very high
Jun10Extreme
Jul11Extreme
Aug10Very high
Sep10Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Kumano 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 Kumano is worst in April — around 18 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (September, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1317 µg/m³Sep 159 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar17Moderate
Apr18Moderate
May16Moderate
Jun13Moderate
Jul9Good
Aug9Good
Sep9Good
Oct9Good
Nov9Good
Dec9Good
Location & terrain

Where is Kumano?

Kumano sits at 33.9°N, 136.1°E, 138 m above sea level, in Japan. The nearest listed city is Owase, 19 km away.

Topography around Kumano

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

Within 3 km, the terrain around Kumano has large variations in elevation — a maximum elevation change of 675 m around an average of 143 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,134 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,878 m.

The land around Kumano is covered by trees (63%) and water (31%) within 3 km, trees (53%) and water (44%) within 16 km, and trees (60%) and water (37%) within 80 km.

3 km
675 m
16 km
1,134 m
80 km
1,878 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Owase 19 km · Shingū 23 km · Kushimoto 58 km · Shimobuchi 62 km · Gojō 63 km · Ōuda-yamaguchi 64 km · Hashimoto 65 km · Kashiwara 69 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 Kumano (33.9039°, 136.1221°, elevation 138 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).