Izumo weather in October

In October, Izumo sees average daytime highs of 21°C and overnight lows near 15°C, with 103 mm of rain across 10.3 wet days and about 11.1 hours of daylight. It is the 6th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 19°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 36 min by month's end. Set against the rest of the year, October is Izumo's 1st-clearest and 8th-windiest month. For the whole year in context, see Izumo's year-round climate.

Daytime high
21°
6th warmest
Overnight low
15°
8th coldest
Rainfall
103 mm
10.3 wet days
Daylight
11 h 06 min
6:21 AM – 5:27 PM
Cloud cover
55%
1st clearest
Wind
11 km/h
8th windiest
Solar energy
3.52 kWh/m²
Travel score
6.5
out of 10

Izumo is city in Shimane Prefecture, Japan.

Density
277/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 19°C by the end.

A typical October day in Izumo reaches about 21°C in the afternoon and slips back to 15°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 24°C. Set against its neighbours, October runs about 5°C cooler than September and about 5°C warmer than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12317
22317
32317
42317
52317
62316
72216
82216
92216
102216
112216
122215
132115
142115
152115
162115
172114
182114
192014
202014
212014
222013
232013
241913
251913
261913
271913
281912
291912
301812
311812

How October really feels in Izumo

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.

Izumo weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 9617.37.89.90.9
Feb / 8714.66.210.71.2
Mar11° / 11614.12.111.72.6
Apr16° / 10410.7012.95.1
May21° / 14°11710.5013.86.4
Jun24° / 19°16012.7014.36.1
Jul28° / 23°21315.2014.15.0
Aug30° / 24°14913.9013.34.6
Sep26° / 20°19013.6012.26.0
Oct21° / 15°10310.3011.16.5
Nov15° / 8711.10.110.14.6
Dec10° / 10316.34.59.72.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in October, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of October, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24555
34654
44654
54654
64852
74951
84951
95149
105149
115149
125248
135347
145347
155446
165446
175545
185545
195446
205446
215446
225446
235446
245347
255347
265347
275347
285347
295446
305347
315347

Chance of precipitation in October

Any precipitation

Izumo gets around 103 mm of rain over 10.3 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 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
338
437
537
636
736
835
934
1034
1133
1233
1332
1432
1531
1631
1731
1831
1931
2031
2131
2232
2332
2432
2532
2632
2732
2832
2933
3033
3133

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 52% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1163332163
2183331153
3203430142
4223429132
5243428122
6263427112
7293426101
832342491
935342381
1038332181
1141331970
1244321860
1346311660
1449311550
1552301440
1654291340
1757291130
1859281030
196227920
206426820
216625720
226824710
237023610
247222510
257321510
267520410
277719400
287818400
298017300
308116300
318215300

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 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over October. Sunrise moves from 6:08 AM to 6:35 AM, and sunset from 5:47 PM to 5:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:085:47
211.66:095:46
311.66:105:44
411.56:115:43
511.56:125:42
611.56:135:40
711.46:135:39
811.46:145:37
911.36:155:36
1011.36:165:35
1111.36:175:33
1211.26:185:32
1311.26:195:31
1411.26:195:29
1511.16:205:28
1611.16:215:27
1711.16:225:25
1811.06:235:24
1911.06:245:23
2010.96:255:22
2110.96:265:21
2210.96:275:19
2310.86:285:18
2410.86:295:17
2510.86:305:16
2610.76:305:15
2710.76:315:14
2810.76:325:13
2910.66:335:12
3010.66:345:11
3110.66:355:10

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.52 kWh/m².

For context, solar energy here swings from a low near 2.04 kWh/m² to a high of 5.74 kWh/m² in May across the year — October's 3.52 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.8Moderate
43.8Moderate
53.8Moderate
63.7Moderate
73.7Moderate
83.7Moderate
93.7Moderate
103.7Moderate
113.6Moderate
123.6Moderate
133.6Moderate
143.6Moderate
153.6Moderate
163.5Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.4Moderate
213.4Moderate
223.4Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.2Moderate
273.2Moderate
283.1Moderate
293.1Moderate
303.1Moderate
313.0Moderate
Planning a trip in October

Hazard calendar for Izumo

In seasonPeak

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

Izumo 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 Izumo?

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

6.5
Sightseeing
1st-best month of the year
3.8
Beach & pool
6th-best month of the year

October is a reasonable time to visit Izumo for sightseeing.

What to pack for Izumo in October

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

In October, Izumo sees daytime highs around 21°C and nights near 15°C. Worth packing: rain gear. About 10 days see rain.

rain gear

Sea temperature near Izumo 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 13 km away) is warmest in August at about 27°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 12 to Nov 15 — about 5.2 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun21Refreshing
Jul24Warm
Aug27Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Izumo 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 Izumo peaks around July 18 at about 10 (extreme) — 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 highExtremeVery highModerateJul 18UV 10Dec 23UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7Very high
May8Very high
Jun9Very high
Jul11Extreme
Aug10Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Izumo 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 Izumo is worst in April — around 22 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (October, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1222 µg/m³Oct 1310 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb16Moderate
Mar21Moderate
Apr22Moderate
May20Moderate
Jun17Moderate
Jul13Moderate
Aug12Good
Sep11Good
Oct10Good
Nov12Good
Dec11Good
Location & terrain

Where is Izumo?

Izumo sits at 35.4°N, 132.8°E, 6 m above sea level, in Japan. The nearest listed city is Hiratachō, 9.0 km away.

Topography around Izumo

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

Within 3 km, the terrain around Izumo has only modest variations in elevation — a maximum elevation change of 152 m around an average of 16 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 567 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,689 m.

The land around Izumo is covered by artificial surfaces (52%) and cropland (22%) within 3 km, trees (54%) and water (25%) within 16 km, and trees (52%) and water (44%) within 80 km.

3 km
152 m
16 km
567 m
80 km
1,689 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Hiratachō 9.0 km · Unnan 18 km · Matsue 29 km · Ōdachō-ōda 31 km · Yasugichō 44 km · Sakaiminato 46 km · Yonago 52 km · Shōbara 62 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 Izumo (35.3667°, 132.7667°, elevation 6 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).