Sumiyoshi weather in October

In October, Sumiyoshi sees average daytime highs of 22°C and overnight lows near 18°C, with 251 mm of rain across 14 wet days and about 11.1 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 20°C by the end. The sky is clear or mostly clear about 39% of the time in October, and the air most often feels comfortable.

Daylight stretches from about 11 h 42 min at the start of October to 10 h 36 min by month's end. Set against the rest of the year, October is Sumiyoshi's 6th-clearest and 7th-windiest month. For the whole year in context, see Sumiyoshi's year-round climate.

Daytime high
22°
5th warmest
Overnight low
18°
8th coldest
Rainfall
251 mm
14 wet days
Daylight
11 h 06 min
5:59 AM – 5:05 PM
Cloud cover
56%
6th clearest
Wind
16 km/h
7th windiest
Solar energy
3.38 kWh/m²
Travel score
6.1
out of 10

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 20°C by the end.

A typical October day in Sumiyoshi reaches about 22°C in the afternoon and slips back to 18°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 24°C. Set against its neighbours, October runs about 4°C cooler than September and about 5°C warmer than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12421
22321
32320
42320
52320
62320
72320
82320
92320
102219
112219
122219
132219
142219
152219
162118
172118
182118
192118
202118
212118
222117
232017
242017
252017
262017
272017
282016
292016
302016
311916

How October really feels in Sumiyoshi

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.

Sumiyoshi 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 daysDaylight (hours)Travel score
Jan10° / 897.39.92.5
Feb11° / 1098.410.72.6
Mar13° / 18412.811.73.5
Apr17° / 12°1931212.85.1
May20° / 16°22312.513.85.9
Jun23° / 20°29115.914.35.5
Jul27° / 24°2871614.15.5
Aug28° / 25°17115.813.35.5
Sep26° / 23°26516.712.25.7
Oct22° / 18°2511411.16.1
Nov17° / 13°14811.110.25.4
Dec12° / 868.29.73.7

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 12% of October, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24456
34456
44654
54555
64654
74753
84852
94753
104852
114753
124951
135050
145050
155050
165149
175149
185248
195248
205347
215347
225446
235446
245545
255644
265545
275644
285743
295842
305842
316040

Chance of precipitation in October

Any precipitation

Sumiyoshi gets around 251 mm of rain over 14 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 45% and peaks near 54% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
154
254
353
452
552
651
750
850
949
1048
1148
1247
1346
1446
1545
1644
1744
1843
1943
2042
2142
2242
2341
2440
2540
2639
2739
2838
2937
3037
3137

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the comfortable band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 15% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
152035328
262136317
362236306
472336285
582436274
682636264
792736244
8102835233
9123035213
10133134192
11153333182
12163432162
13183531152
14203630131
15223728121
16243727101
1727372691
1829382581
1931382371
2034382260
2136382050
2239371950
2341371840
2444361730
2546351630
2648341520
2751331420
2853321320
2956311210
3057311110
3158301110

Wind in October

Winds average 16 km/h in October.

Across October, daily wind ranges from about 16 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 42 min at the start of October to 10 h 36 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 5:46 AM to 6:12 AM, and sunset from 5:26 PM to 4:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:465:26
211.65:475:24
311.65:485:23
411.55:495:21
511.55:505:20
611.55:505:19
711.45:515:17
811.45:525:16
911.45:535:14
1011.35:545:13
1111.35:545:12
1211.35:555:10
1311.25:565:09
1411.25:575:08
1511.15:585:07
1611.15:595:05
1711.16:005:04
1811.06:005:03
1911.06:015:02
2011.06:025:00
2110.96:034:59
2210.96:044:58
2310.96:054:57
2410.86:064:56
2510.86:074:55
2610.86:084:54
2710.76:094:53
2810.76:104:52
2910.76:104:51
3010.66:114:50
3110.66:124:49

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.38 kWh/m².

For context, solar energy here swings from a low near 2.62 kWh/m² to a high of 5.55 kWh/m² in May across the year — October's 3.38 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.7Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.6Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.5Moderate
123.5Moderate
133.4Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.4Moderate
183.3Moderate
193.3Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.2Moderate
243.2Moderate
253.2Moderate
263.2Moderate
273.2Moderate
283.2Moderate
293.1Moderate
303.1Moderate
313.1Moderate
Planning a trip in October

Hazard calendar for Sumiyoshi

In seasonPeak

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

Sumiyoshi 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 Sumiyoshi?

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

6.1
Sightseeing
1st-best month of the year
3.9
Beach & pool
5th-best month of the year

October is a reasonable time to visit Sumiyoshi for sightseeing.

What to pack for Sumiyoshi in October

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

In October, Sumiyoshi sees daytime highs around 22°C and nights near 18°C. Pack rain gear. About 14 days see rain.

rain gear

Sea temperature near Sumiyoshi in October

The nearest coast averages about 23°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 18 km away) is warmest in August at about 27°C and coldest in February near 15°C.

It's comfortable for a long swim from May 28 to Nov 26 — about 6 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar16Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul24Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov21Refreshing
Dec18Cool

UV index in Sumiyoshi 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 Sumiyoshi peaks around July 22 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJul 22UV 10Dec 23UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May9Very high
Jun10Very high
Jul10Extreme
Aug10Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Sumiyoshi 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 Sumiyoshi 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 159 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar19Moderate
Apr21Moderate
May19Moderate
Jun16Moderate
Jul12Good
Aug11Good
Sep10Good
Oct11Good
Nov10Good
Dec9Good
Location & terrain

Where is Sumiyoshi?

Sumiyoshi sits at 34.8°N, 138.3°E, 8 m above sea level, in Japan. The nearest listed city is Sagara, 8.0 km away.

Topography around Sumiyoshi

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

Within 3 km, the terrain around Sumiyoshi has only modest variations in elevation — a maximum elevation change of 87 m around an average of 8 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 363 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,738 m.

The land around Sumiyoshi is covered by water (38%) and artificial surfaces (35%) within 3 km, water (46%) and trees (28%) within 16 km, and trees (46%) and water (45%) within 80 km.

3 km
87 m
16 km
363 m
80 km
3,738 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Sagara 8.0 km · Shimada 10 km · Maruobara 10 km · Kikugawa 13 km · Fujieda 13 km · Kanaya 14 km · Yaizu 15 km · Ōyama 17 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 Sumiyoshi (34.75°, 138.25°, elevation 8 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).