Izumo weather in July

In July, Izumo sees average daytime highs of 28°C and overnight lows near 23°C, with 213 mm of rain across 15.2 wet days and about 14.1 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 30°C by the end. The sky is clear or mostly clear about 18% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 14 h 24 min at the start of July to 13 h 48 min by month's end. Set against the rest of the year, July is Izumo's 11th-clearest and 8th-windiest month. For the whole year in context, see Izumo's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
23°
11th coldest
Rainfall
213 mm
15.2 wet days
Daylight
14 h 12 min
5:09 AM – 7:20 PM
Cloud cover
72%
11th clearest
Wind
11 km/h
8th windiest
Solar energy
5.17 kWh/m²
Travel score
5.0
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 July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 30°C by the end.

A typical July day in Izumo reaches about 28°C in the afternoon and slips back to 23°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 31°C. Set against its neighbours, July runs about 4°C warmer than June and about 2°C cooler than August.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12621
22621
32622
42722
52722
62722
72722
82722
92722
102723
112823
122823
132823
142823
152823
162823
172823
182924
192924
202924
212924
222924
232924
242924
252924
263024
273024
283025
293025
303025
313025

How July really feels in Izumo

Once humidity and wind are folded in, July averages 10 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
10
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Izumo weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 1st-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 July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 13% of July, with mostly cloudy or overcast conditions the remaining 69%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11981
22080
32080
42080
52179
62179
72179
82179
92377
102476
112476
122575
132575
142773
152773
162971
173070
183268
193268
203466
213565
223763
233862
243961
254159
264258
274357
284456
294555
304555
314654

Chance of precipitation in July

Any precipitation

Izumo gets around 213 mm of rain over 15.2 wet days in July, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 49% and peaks near 56% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
155
256
356
456
556
656
756
856
956
1055
1155
1254
1354
1453
1552
1651
1750
1849
1948
2047
2146
2245
2343
2442
2541
2641
2740
2840
2939
3039
3139

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the oppressive band about 61% of days. Sticky, muggy-or-worse air turns up on roughly 94% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
121747340
221646360
311445390
411344420
511243440
601143460
701042480
80941500
90839521
100738541
110637561
120635581
130533602
140531622
150530623
160428653
170426664
180425674
190323695
200322696
210320716
220219727
230217738
240216739
2502157310
2602147410
2701137511
2801127512
2901127413
3001117414
3101117414

Wind in July

Winds average 11 km/h in July.

Across July, 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 July

DaylightNight

Daylight runs from about 14 h 24 min at the start of July to 13 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over July. Sunrise moves from 5:01 AM to 5:20 AM, and sunset from 7:23 PM to 7:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.45:017:23
214.45:027:23
314.35:027:23
414.35:037:23
514.35:037:23
614.35:047:23
714.35:047:22
814.35:057:22
914.35:057:22
1014.35:067:22
1114.35:067:22
1214.25:077:21
1314.25:087:21
1414.25:087:20
1514.25:097:20
1614.25:097:20
1714.25:107:19
1814.15:117:19
1914.15:117:18
2014.15:127:18
2114.15:137:17
2214.05:147:16
2314.05:147:16
2414.05:157:15
2514.05:167:15
2614.05:167:14
2713.95:177:13
2813.95:187:12
2913.95:197:12
3013.95:197:11
3113.85:207:10

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.17 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 — July's 5.17 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.9Bright
94.9Bright
104.9Bright
115.0Bright
125.0Bright
135.0Bright
145.1Bright
155.1Bright
165.1Bright
175.2Bright
185.2Bright
195.3Bright
205.3Bright
215.4Bright
225.4Bright
235.4Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in July

Hazard calendar for Izumo

In seasonPeak

In July, 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 July a good time to visit Izumo?

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

5.0
Sightseeing
6th-best month of the year
5.8
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Izumo for sightseeing.

What to pack for Izumo in July

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

In July, Izumo sees daytime highs around 28°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

Sea temperature near Izumo in July

The nearest coast averages about 24°C in July — 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 July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 11 (very high — sun protection essential). 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 July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July 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
July 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).