Ōta weather in October

In October, Ōta sees average daytime highs of 21°C and overnight lows near 14°C, with 187 mm of rain across 12.8 wet days and about 11.1 hours of daylight. It is the 6th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 18°C by the end. The sky is clear or mostly clear about 35% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 30 min by month's end. Set against the rest of the year, October is Ōta's 7th-clearest and 8th-windiest month. For the whole year in context, see Ōta's year-round climate.

Daytime high
21°
6th warmest
Overnight low
14°
7th coldest
Rainfall
187 mm
12.8 wet days
Daylight
11 h 06 min
5:56 AM – 4:59 PM
Cloud cover
59%
7th clearest
Wind
6 km/h
8th windiest
Solar energy
2.96 kWh/m²
Travel score
6.0
out of 10

Ōta is city in Gunma Prefecture, Japan.

Density
1,278/km²
people per km²
Founded
2005

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 18°C by the end.

A typical October day in Ōta reaches about 21°C in the afternoon and slips back to 14°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 24°C. Set against its neighbours, October runs about 6°C cooler than September and about 5°C warmer than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12317
22316
32316
42316
52316
62216
72216
82215
92215
102215
112115
122115
132114
142114
152114
162114
172013
182013
192013
202013
212012
222012
231912
241912
251912
261911
271911
281911
291811
301810
311810

How October really feels in Ōta

Once humidity and wind are folded in, October 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

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Ōta weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 546.52.39.81.6
Feb / 537.22.510.62.0
Mar13° / 9911.91.511.73.4
Apr18° / 11111.70.212.95.5
May23° / 14°13212.9013.96.2
Jun25° / 18°17316.4014.45.4
Jul29° / 22°19917.8014.24.4
Aug30° / 23°15216.1013.44.2
Sep26° / 20°19916.1012.25.5
Oct21° / 14°18712.8011.16.0
Nov15° / 697.8010.15.1
Dec11° / 476.60.49.62.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 13% of October, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
33961
44159
54159
64258
74357
84357
94357
104357
114456
124555
134654
144654
154654
164654
174753
184852
194951
205050
215149
225248
235347
245446
255545
265644
275743
285842
295941
306040
316139

Chance of precipitation in October

Any precipitation

Ōta gets around 187 mm of rain over 12.8 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 41% and peaks near 49% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
149
249
348
448
547
646
746
845
945
1044
1144
1243
1342
1442
1541
1641
1740
1840
1939
2039
2138
2238
2337
2437
2536
2635
2735
2834
2933
3032
3131

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 59% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1243233102
225333191
327343081
429342981
530342871
632342671
735342560
837342360
940332250
1043322050
1146311840
1249301740
1352291540
1456281330
1558271230
1661251130
1764241020
186623920
196921820
207220710
217419610
227618510
237817410
248016400
258215300
268314300
278513200
288612200
298811100
308811100
318910100

Wind in October

Winds average 6 km/h in October.

Across October, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over October. Sunrise moves from 5:42 AM to 6:10 AM, and sunset from 5:21 PM to 4:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:425:21
211.65:435:19
311.65:445:18
411.55:455:16
511.55:465:15
611.45:475:13
711.45:485:12
811.45:495:10
911.35:495:09
1011.35:505:07
1111.25:515:06
1211.25:525:05
1311.25:535:03
1411.15:545:02
1511.15:555:01
1611.15:564:59
1711.05:574:58
1811.05:584:57
1910.95:594:55
2010.96:004:54
2110.96:014:53
2210.86:024:52
2310.86:024:51
2410.86:034:49
2510.76:044:48
2610.76:054:47
2710.76:064:46
2810.66:074:45
2910.66:084:44
3010.66:094:43
3110.56:104:42

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.96 kWh/m².

For context, solar energy here swings from a low near 2.41 kWh/m² to a high of 5.18 kWh/m² in May across the year — October's 2.96 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.2Moderate
23.1Moderate
33.1Moderate
43.1Moderate
53.1Moderate
63.1Moderate
73.1Moderate
83.0Moderate
93.0Moderate
103.0Moderate
113.0Moderate
123.0Moderate
133.0Moderate
143.0Moderate
153.0Moderate
163.0Moderate
173.0Moderate
182.9Moderate
192.9Moderate
202.9Moderate
212.9Moderate
222.9Moderate
232.9Moderate
242.9Moderate
252.9Moderate
262.9Moderate
272.9Moderate
282.9Moderate
292.9Moderate
302.9Moderate
312.9Moderate
Planning a trip in October

Is October a good time to visit Ōta?

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

6.0
Sightseeing
2nd-best month of the year
3.4
Beach & pool
6th-best month of the year

October is a reasonable time to visit Ōta for sightseeing.

What to pack for Ōta in October

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

In October, Ōta sees daytime highs around 21°C and nights near 14°C. Worth packing: rain gear. About 13 days see rain.

rain gear

UV index in Ōta in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ōta peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 highModerateJul 16UV 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Ōta in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Ōta is worst in April — around 26 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1426 µg/m³Dec 1814 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb21Moderate
Mar25Moderate
Apr26Moderate
May24Moderate
Jun20Moderate
Jul17Moderate
Aug16Moderate
Sep16Moderate
Oct16Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Ōta?

Ōta sits at 36.3°N, 139.4°E, 50 m above sea level, in Japan. The nearest listed city is Kamikoizumi, 7.0 km away.

Topography around Ōta

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

Within 3 km, the terrain around Ōta has only modest variations in elevation — a maximum elevation change of 203 m around an average of 55 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 646 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,579 m.

The land around Ōta is covered by artificial surfaces (67%) within 3 km, artificial surfaces (44%), cropland (27%) and trees (21%) within 16 km, and trees (61%) and artificial surfaces (21%) within 80 km.

3 km
203 m
16 km
646 m
80 km
2,579 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Kamikoizumi 7.0 km · Ashikaga 8.0 km · Menuma 9.0 km · Sakai-nakajima 11 km · Kiryū 12 km · Fukayachō 13 km · Isesaki 15 km · Tatebayashi 16 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 Ōta (36.3°, 139.3667°, elevation 50 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. 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).