Kesennuma weather in October

In October, Kesennuma sees average daytime highs of 18°C and overnight lows near 11°C, with 140 mm of rain across 10.4 wet days and about 11 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 15°C by the end. The sky is clear or mostly clear about 31% 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 Kesennuma's 6th-clearest and 7th-windiest month. For the whole year in context, see Kesennuma's year-round climate.

Daytime high
18°
5th warmest
Overnight low
11°
8th coldest
Rainfall
140 mm
10.4 wet days
Daylight
11 hours
5:50 AM – 4:48 PM
Cloud cover
61%
6th clearest
Wind
11 km/h
7th windiest
Solar energy
3.15 kWh/m²
Travel score
5.6
out of 10

Kesennuma is city in Miyagi Prefecture, Japan.

Density
184/km²
people per km²
Founded
1953

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 20°C in the first days to 15°C by the end.

A typical October day in Kesennuma 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 21°C. Set against its neighbours, October runs about 5°C cooler than September and about 6°C warmer than November.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12014
22014
32013
42013
52013
61913
71913
81912
91912
101912
111912
121812
131811
141811
151811
161811
171811
181710
191710
201710
211710
221710
23179
24169
25169
26169
27169
28168
29158
30158
31158

How October really feels in Kesennuma

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.

Kesennuma weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°497.24.89.60.0
Feb / -2°457.44.910.50.0
Mar / 9210.84.411.71.2
Apr13° / 10011.21.1133.5
May18° / 11°11611.7014.15.3
Jun21° / 15°12612.1014.75.7
Jul24° / 19°16415.6014.45.7
Aug26° / 21°15414.2013.55.8
Sep23° / 17°17113.7012.35.9
Oct18° / 11°14010.40115.6
Nov12° / 708.60.39.93.3
Dec / 598.93.29.30.5

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 16% 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 (%)
13862
23862
33961
44060
54159
64060
74060
84258
94258
104357
114357
124357
134555
144555
154654
164654
174654
184852
194852
204852
214951
225149
235149
245248
255347
265446
275545
285644
295842
305941
316040

Chance of precipitation in October

Any precipitation

Kesennuma gets around 140 mm of rain over 10.4 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 33% and peaks near 39% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
238
338
438
538
637
737
836
935
1035
1134
1234
1333
1433
1532
1632
1732
1831
1931
2031
2131
2231
2331
2431
2531
2631
2731
2830
2930
3030
3129

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 78% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14932163
25131153
35231143
45430133
55729122
65928112
76127102
8632692
9652582
10692371
11702271
12732061
13751951
14771751
15791551
16811441
17831340
18851230
19861130
20871030
2189920
2290820
2391720
2493610
2593610
2694510
2794510
2895410
2995410
3097300
3197300

Wind in October

Winds average 11 km/h in October.

Across October, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 5:35 AM to 6:06 AM, and sunset from 5:11 PM to 4:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:355:11
211.65:365:09
311.55:375:07
411.55:385:06
511.45:395:04
611.45:405:03
711.35:415:01
811.35:425:00
911.35:434:58
1011.25:444:57
1111.25:454:55
1211.15:464:54
1311.15:474:52
1411.05:484:51
1511.05:494:49
1611.05:504:48
1710.95:514:46
1810.95:524:45
1910.85:534:43
2010.85:544:42
2110.85:554:41
2210.75:564:39
2310.75:574:38
2410.65:584:37
2510.65:594:36
2610.66:004:34
2710.56:024:33
2810.56:034:32
2910.46:044:31
3010.46:054:30
3110.46:064:28

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.15 kWh/m².

For context, solar energy here swings from a low near 2.09 kWh/m² to a high of 5.46 kWh/m² in May across the year — October's 3.15 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.5Moderate
23.4Moderate
33.4Moderate
43.4Moderate
53.4Moderate
63.3Moderate
73.3Moderate
83.3Moderate
93.3Moderate
103.3Moderate
113.3Moderate
123.2Moderate
133.2Moderate
143.2Moderate
153.2Moderate
163.2Moderate
173.1Moderate
183.1Moderate
193.1Moderate
203.1Moderate
213.1Moderate
223.0Moderate
233.0Moderate
243.0Moderate
253.0Moderate
262.9Moderate
272.9Moderate
282.9Moderate
292.9Moderate
302.9Moderate
312.8Moderate
Planning a trip in October

Hazard calendar for Kesennuma

In seasonPeak

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

Kesennuma 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 October a good time to visit Kesennuma?

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

5.6
Sightseeing
5th-best month of the year
1.8
Beach & pool
5th-best month of the year

October is a reasonable time to visit Kesennuma for sightseeing.

What to pack for Kesennuma in October

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

In October, Kesennuma sees daytime highs around 18°C and nights near 11°C. Worth packing: rain gear. About 10 days see rain.

rain gear

Sea temperature near Kesennuma in October

The nearest coast averages about 19°C in October — 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 22°C and coldest in March near 7°C.

It's comfortable for a long swim from Jul 21 to Oct 3 — about 2.5 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb8Bracing
Mar7Bracing
Apr9Bracing
May12Bracing
Jun17Cool
Jul20Cool
Aug22Refreshing
Sep22Refreshing
Oct19Cool
Nov16Cool
Dec13Bracing

UV index in Kesennuma 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 Kesennuma peaks around August 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highVery highHighModerateLowAug 18UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul7High
Aug9Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Kesennuma 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 Kesennuma is worst in April — around 19 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1319 µg/m³Dec 179 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar18Moderate
Apr19Moderate
May17Moderate
Jun12Moderate
Jul11Good
Aug9Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Kesennuma?

Kesennuma sits at 38.9°N, 141.6°E, 14 m above sea level, in Japan. The nearest listed city is Rikuzen-Takata, 15 km away.

Topography around Kesennuma

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

Within 3 km, the terrain around Kesennuma has significant variations in elevation — a maximum elevation change of 350 m around an average of 54 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 890 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,889 m.

The land around Kesennuma is covered by trees (54%) and artificial surfaces (30%) within 3 km, trees (55%) and water (36%) within 16 km, and trees (54%) and water (33%) within 80 km.

3 km
350 m
16 km
890 m
80 km
1,889 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Rikuzen-Takata 15 km · Ōfunato 22 km · Ichinoseki 38 km · Tome 42 km · Ōshū 44 km · Mizusawa 46 km · Tōno 46 km · Kamaishi 49 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 Kesennuma (38.9011°, 141.5775°, elevation 14 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).