Minami-Sōma weather in October

In October, Minami-Sōma sees average daytime highs of 19°C and overnight lows near 16°C, with 191 mm of rain across 11.6 wet days and about 11 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 17°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 24 min by month's end. Set against the rest of the year, October is Minami-Sōma's 7th-clearest and 7th-windiest month. For the whole year in context, see Minami-Sōma's year-round climate.

Daytime high
19°
5th warmest
Overnight low
16°
8th coldest
Rainfall
191 mm
11.6 wet days
Daylight
11 hours
5:51 AM – 4:51 PM
Cloud cover
60%
7th clearest
Wind
15 km/h
7th windiest
Solar energy
3 kWh/m²
Travel score
5.8
out of 10

Minami-Sōma is city in Fukushima prefecture, Japan.

Density
148/km²
people per km²
Founded
2006

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 21°C in the first days to 17°C by the end.

A typical October day in Minami-Sōma reaches about 19°C in the afternoon and slips back to 16°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 21°C. Set against its neighbours, October runs about 4°C cooler than September and about 5°C warmer than November.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12118
22118
32118
42018
52018
62017
72017
82017
92017
102017
111917
121916
131916
141916
151916
161916
171915
181815
191815
201815
211815
221814
231814
241714
251714
261714
271713
281713
291713
301713
311613

How October really feels in Minami-Sōma

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.

Minami-Sōma weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 628.22.89.70.7
Feb / 527.42.910.50.7
Mar / 9810.21.511.71.6
Apr12° / 11310.50.212.93.3
May16° / 13°12111.20145.0
Jun20° / 17°13512.8014.55.5
Jul23° / 21°19116.2014.35.6
Aug25° / 23°14813.2013.46.2
Sep23° / 21°19414.1012.36.0
Oct19° / 16°19111.60115.8
Nov14° / 10°788.10104.3
Dec / 588.71.29.42.0

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 15% 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 (%)
13862
23862
34159
44159
54258
64258
74357
84357
94357
104456
114456
124555
134654
144654
154555
164753
174753
184852
194852
205050
215149
225248
235347
245446
255545
265644
275743
285842
296040
306139
316238

Chance of precipitation in October

Any precipitation

Minami-Sōma gets around 191 mm of rain over 11.6 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 37% and peaks near 43% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
143
243
343
442
542
641
741
840
940
1040
1139
1239
1339
1439
1538
1638
1738
1838
1937
2037
2136
2236
2335
2434
2533
2633
2732
2831
2929
3029
3128

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 54% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1252932131
2263031121
3283030111
4303029101
531312890
633312780
735312680
837312570
940312360
1042312250
1144312040
1247311940
1349311730
1452301530
1553301430
1656301220
1758291120
1859291020
196228910
206428710
216627610
226826510
236926410
247125400
257324300
267523200
277622200
287821100
297920100
308019100
318217100

Wind in October

Winds average 15 km/h in October.

Across October, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over October. Sunrise moves from 5:37 AM to 6:06 AM, and sunset from 5:14 PM to 4:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:375:14
211.65:375:12
311.55:385:10
411.55:395:09
511.55:405:07
611.45:415:06
711.45:425:04
811.35:435:03
911.35:445:01
1011.35:455:00
1111.25:464:59
1211.25:474:57
1311.15:484:56
1411.15:494:54
1511.15:504:53
1611.05:514:51
1711.05:524:50
1810.95:534:49
1910.95:544:47
2010.95:554:46
2110.85:564:45
2210.85:574:44
2310.75:584:42
2410.75:594:41
2510.76:004:40
2610.66:014:39
2710.66:024:38
2810.66:034:36
2910.56:044:35
3010.56:054:34
3110.46:064:33

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3 kWh/m².

For context, solar energy here swings from a low near 2.21 kWh/m² to a high of 5.4 kWh/m² in May across the year — October's 3 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
212.9Moderate
222.9Moderate
232.9Moderate
242.9Moderate
252.9Moderate
262.9Moderate
272.9Moderate
282.9Moderate
292.8Moderate
302.8Moderate
312.8Moderate
Planning a trip in October

Hazard calendar for Minami-Sōma

In seasonPeak

In October, Minami-Sōma sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.

Minami-Sōma sits in the Pacific typhoon belt; the season peaks July–October.

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

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

Is October a good time to visit Minami-Sōma?

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

5.8
Sightseeing
3rd-best month of the year
2.3
Beach & pool
5th-best month of the year

October is a reasonable time to visit Minami-Sōma for sightseeing.

What to pack for Minami-Sōma in October

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

In October, Minami-Sōma sees daytime highs around 19°C and nights near 16°C. Worth packing: rain gear. About 12 days see rain.

rain gear

Sea temperature near Minami-Sōma in October

The nearest coast averages about 20°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 13 km away) is warmest in August at about 23°C and coldest in March near 10°C.

It's comfortable for a long swim from Jul 9 to Oct 11 — about 3.1 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb10Bracing
Mar10Bracing
Apr11Bracing
May14Bracing
Jun18Cool
Jul21Refreshing
Aug23Refreshing
Sep23Refreshing
Oct20Cool
Nov17Cool
Dec15Bracing

UV index in Minami-Sōma in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Minami-Sōma peaks around July 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 20UV 9Jan 10UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul9Very high
Aug9Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Minami-Sōma 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 Minami-Sōma is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1720 µg/m³Dec 169 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar19Moderate
Apr20Moderate
May19Moderate
Jun14Moderate
Jul12Good
Aug10Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Minami-Sōma?

Minami-Sōma sits at 37.6°N, 141.0°E, 27 m above sea level, in Japan. The nearest listed city is Namie, 16 km away.

Topography around Minami-Sōma

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

Within 3 km, the terrain around Minami-Sōma has only modest variations in elevation — a maximum elevation change of 80 m around an average of 22 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 725 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,031 m.

The land around Minami-Sōma is covered by artificial surfaces (38%) and cropland (35%) within 3 km, trees (43%) and water (36%) within 16 km, and trees (52%) and water (35%) within 80 km.

3 km
80 m
16 km
725 m
80 km
2,031 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Namie 16 km · Sōma 19 km · Tamura 40 km · Funehikimachi-funehiki 41 km · Yanagawamachi-saiwaichō 41 km · Kakuda 42 km · Hobaramachi 43 km · Watari 47 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 Minami-Sōma (37.6291°, 140.9787°, elevation 27 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).