Ōmamachō-ōmama weather in October

In October, Ōmamachō-ōmama sees average daytime highs of 18°C and overnight lows near 11°C, with 168 mm of rain across 13.4 wet days and about 11.1 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 16°C by the end. The sky is clear or mostly clear about 33% 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 Ōmamachō-ōmama's 7th-clearest and 8th-windiest month. For the whole year in context, see Ōmamachō-ōmama's year-round climate.

Daytime high
18°
6th warmest
Overnight low
11°
7th coldest
Rainfall
168 mm
13.4 wet days
Daylight
11 h 06 min
5:56 AM – 5:00 PM
Cloud cover
60%
7th clearest
Wind
5 km/h
8th windiest
Solar energy
3.01 kWh/m²
Travel score
5.4
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 21°C in the first days to 16°C by the end.

A typical October day in Ōmamachō-ōmama reaches about 18°C in the afternoon and slips back to 11°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 22°C. Set against its neighbours, October runs about 5°C cooler than September and about 5°C warmer than November.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12114
22114
32114
42014
52014
62013
72013
82013
92013
101913
111912
121912
131912
141912
151811
161811
171811
181811
191811
201810
211710
221710
231710
24179
25179
26179
27169
28168
29168
30168
31168

How October really feels in Ōmamachō-ōmama

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.

Ōmamachō-ōmama weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°517.25.59.80.1
Feb / -2°518.35.910.60.4
Mar10° / 9912.45.411.72.0
Apr15° / 11412.71.312.94.4
May20° / 11°13614.3013.95.6
Jun23° / 16°17318.4014.45.1
Jul27° / 20°21721.3014.24.7
Aug28° / 21°17420.2013.44.7
Sep24° / 17°20417.2012.25.4
Oct18° / 11°16813.4011.15.4
Nov13° / 667.80.310.13.9
Dec / 4573.39.61.3

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 53%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
24060
34060
44159
54258
64159
74159
84258
94258
104258
114357
124357
134357
144456
154555
164555
174555
184654
194753
204852
214951
225149
235248
245248
255446
265545
275644
285743
295941
306040
316040

Chance of precipitation in October

Any precipitation

Ōmamachō-ōmama gets around 168 mm of rain over 13.4 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 43% and peaks near 52% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
152
252
351
451
550
650
749
849
948
1047
1146
1246
1345
1444
1543
1643
1742
1841
1941
2040
2140
2239
2338
2437
2536
2636
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 75% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14138173
24338163
34537152
44837142
55036131
65334121
75533111
85731111
95930101
10622891
11662680
12702370
13722170
14751960
15781750
16801550
17831340
18841240
19861130
2088930
2190820
2291720
2393610
2493610
2594510
2695410
2795410
2897300
2997300
3098200
3198200

Wind in October

Winds average 5 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
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
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 5:43 AM to 6:11 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)
111.65:435:21
211.65:445:19
311.65:455:18
411.55:455:16
511.55:465:15
611.45:475:13
711.45:485:12
811.45:495:11
911.35:505:09
1011.35:515:08
1111.25:525:06
1211.25:535:05
1311.25:545:04
1411.15:545:02
1511.15:555:01
1611.15:565:00
1711.05:574:58
1811.05:584:57
1910.95:594:56
2010.96:004:54
2110.96:014:53
2210.86:024:52
2310.86:034:51
2410.86:044:50
2510.76:054:48
2610.76:064:47
2710.76:074:46
2810.66:084:45
2910.66:094:44
3010.56:104:43
3110.56:114:42

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.01 kWh/m².

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 5.29 kWh/m² in May across the year — October's 3.01 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.2Moderate
23.2Moderate
33.2Moderate
43.2Moderate
53.1Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.1Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.0Moderate
143.0Moderate
153.0Moderate
163.0Moderate
173.0Moderate
183.0Moderate
193.0Moderate
203.0Moderate
213.0Moderate
223.0Moderate
233.0Moderate
242.9Moderate
252.9Moderate
262.9Moderate
272.9Moderate
282.9Moderate
292.9Moderate
302.9Moderate
312.9Moderate
Planning a trip in October

Hazard calendar for Ōmamachō-ōmama

In seasonPeak

In October, Ōmamachō-ōmama sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Ōmamachō-ōmama's rainy season runs March–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Ōmamachō-ōmama?

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

5.4
Sightseeing
2nd-best month of the year
2.0
Beach & pool
6th-best month of the year

October is a reasonable time to visit Ōmamachō-ōmama for sightseeing.

What to pack for Ōmamachō-ōmama in October

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

In October, Ōmamachō-ōmama sees daytime highs around 18°C and nights near 11°C. Worth packing: rain gear. About 13 days see rain.

rain gear

UV index in Ōmamachō-ōmama 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 Ōmamachō-ōmama 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 Ōmamachō-ōmama 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 Ōmamachō-ōmama is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1721 µg/m³Dec 179 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun16Moderate
Jul14Moderate
Aug13Moderate
Sep11Good
Oct11Good
Nov10Good
Dec9Good
Location & terrain

Where is Ōmamachō-ōmama?

Ōmamachō-ōmama sits at 36.4°N, 139.3°E, 182 m above sea level, in Japan. The nearest listed city is Midori, 2.0 km away.

Topography around Ōmamachō-ōmama

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

Within 3 km, the terrain around Ōmamachō-ōmama has significant variations in elevation — a maximum elevation change of 321 m around an average of 210 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,779 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,552 m.

The land around Ōmamachō-ōmama is covered by artificial surfaces (42%) and trees (41%) within 3 km, trees (56%) and artificial surfaces (25%) within 16 km, and trees (67%) within 80 km.

3 km
321 m
16 km
1,779 m
80 km
2,552 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Midori 2.0 km · Kiryū 6.0 km · Isesaki 14 km · Ōta 17 km · Maebashi 18 km · Sakai-nakajima 18 km · Ashikaga 19 km · Tamamura 20 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 Ōmamachō-ōmama (36.4318°, 139.2753°, elevation 182 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).