Shiozawa weather in July

In July, Shiozawa sees average daytime highs of 26°C and overnight lows near 18°C, with 292 mm of rain across 22.5 wet days and about 14.3 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 27°C by the end. The sky is clear or mostly clear about 11% of the time in July, and the air most often feels muggy.

Daylight stretches from about 14 h 30 min at the start of July to 13 h 54 min by month's end. Set against the rest of the year, July is Shiozawa's 11th-clearest and 12th-windiest month. For the whole year in context, see Shiozawa's year-round climate.

Daytime high
26°
2nd warmest
Overnight low
18°
11th coldest
Rainfall
292 mm
22.5 wet days
Daylight
14 h 18 min
4:41 AM – 7:00 PM
Cloud cover
78%
11th clearest
Wind
5 km/h
12th windiest
Solar energy
4.84 kWh/m²
Travel score
4.7
out of 10

Shiozawa is dissolved municipality in Minamiuonuma district, Niigata prefecture, Japan.

Density
106/km²
people per km²
Founded
1900

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 24°C in the first days to 27°C by the end.

A typical July day in Shiozawa reaches about 26°C in the afternoon and slips back to 18°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 29°C. Set against its neighbours, July runs about 4°C warmer than June and about 1°C cooler than August.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12417
22417
32417
42417
52417
62417
72518
82518
92518
102518
112518
122518
132518
142518
152618
162618
172619
182619
192619
202619
212619
222619
232719
242719
252719
262719
272719
282719
292720
302720
312720

How July really feels in Shiozawa

Once humidity and wind are folded in, July 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

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Shiozawa 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 / -6°22925.425.39.70.0
Feb / -5°17721.320.310.60.0
Mar / -3°17621.217.311.70.3
Apr12° / 13916.6512.92.7
May19° / 16115.90.3145.1
Jun22° / 14°20118.4014.55.0
Jul26° / 18°29222.5014.34.7
Aug27° / 19°21720.2013.45.0
Sep23° / 15°21618.2012.35.2
Oct17° / 20117.50.3114.3
Nov10° / 16818.76.4101.9
Dec / -4°21023.319.49.50.1

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% 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 77%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11585
21585
31585
41585
51585
61585
71684
81684
91783
101783
111882
121882
131981
141981
152080
162278
172278
182278
192575
202575
212674
222872
232971
243169
253268
263367
273466
283565
293565
303565
313664

Chance of precipitation in July

Any precipitation

Shiozawa gets around 292 mm of rain over 22.5 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 72% and peaks near 80% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
176
277
377
478
579
679
780
880
980
1080
1179
1279
1378
1477
1576
1675
1774
1872
1971
2070
2168
2267
2366
2465
2564
2663
2762
2862
2962
3061
3161

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the muggy band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 59% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
132245300
232045320
321846340
421645360
521445380
611345411
711244431
811143441
911042461
100941481
110840502
120839512
130738532
140637552
150636553
160634573
170533593
180532594
190430624
200429634
210428635
220327655
230325666
240224677
250223687
260221698
270220699
280219709
2901187110
3001177111
3101167211

Wind in July

Winds average 5 km/h in July, the calmest month.

Across July, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 30 min at the start of July to 13 h 54 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 4:33 AM to 4:52 AM, and sunset from 7:03 PM to 6:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.54:337:03
214.54:337:03
314.54:337:03
414.54:347:03
514.54:347:03
614.54:357:03
714.54:357:03
814.44:367:02
914.44:367:02
1014.44:377:02
1114.44:387:02
1214.44:387:01
1314.44:397:01
1414.34:407:00
1514.34:407:00
1614.34:417:00
1714.34:426:59
1814.34:426:59
1914.34:436:58
2014.24:446:57
2114.24:446:57
2214.24:456:56
2314.24:466:55
2414.14:476:55
2514.14:476:54
2614.14:486:53
2714.14:496:53
2814.04:506:52
2914.04:516:51
3014.04:516:50
3113.94:526:49

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.84 kWh/m².

For context, solar energy here swings from a low near 2.08 kWh/m² to a high of 5.62 kWh/m² in May across the year — July's 4.84 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.8Bright
164.8Bright
174.8Bright
184.9Bright
194.9Bright
204.9Bright
215.0Bright
225.0Bright
235.0Bright
245.1Bright
255.1Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.3Bright
315.3Bright
Planning a trip in July

Hazard calendar for Shiozawa

In seasonPeak

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

Shiozawa 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 Shiozawa?

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

4.7
Sightseeing
5th-best month of the year
4.4
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Shiozawa for sightseeing.

What to pack for Shiozawa in July

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

In July, Shiozawa sees daytime highs around 26°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 23 days see rain.

rain gearlight clothessun protection

Sea temperature near Shiozawa in July

The nearest coast averages about 23°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 42 km away) is warmest in August at about 27°C and coldest in March near 10°C.

It's comfortable for a long swim from Jun 21 to Oct 31 — about 4.4 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb11Bracing
Mar10Bracing
Apr11Bracing
May15Bracing
Jun20Cool
Jul23Refreshing
Aug27Warm
Sep25Warm
Oct22Refreshing
Nov18Cool
Dec15Cool

UV index in Shiozawa in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Shiozawa peaks around August 12 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highModerateAug 12UV 10Dec 21UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug10Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Moderate

Air quality in Shiozawa 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 Shiozawa is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1821 µg/m³Dec 1610 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun18Moderate
Jul15Moderate
Aug13Moderate
Sep12Good
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is Shiozawa?

Shiozawa sits at 37.0°N, 138.8°E, 180 m above sea level, in Japan. The nearest listed city is Muikamachi, 4.0 km away.

Topography around Shiozawa

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

Within 3 km, the terrain around Shiozawa has significant variations in elevation — a maximum elevation change of 364 m around an average of 231 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,859 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,551 m.

The land around Shiozawa is covered by cropland (52%) and trees (25%) within 3 km, trees (77%) within 16 km, and trees (75%) within 80 km.

3 km
364 m
16 km
1,859 m
80 km
2,551 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Muikamachi 4.0 km · Minamiuonuma 5.0 km · Tōkamachi 13 km · Uonuma 25 km · Ojiya 29 km · Minakami 41 km · Kashiwazaki 45 km · Nagaoka 46 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 Shiozawa (37.0376°, 138.8487°, elevation 180 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).