Shibata weather in August

In August, Shibata sees average daytime highs of 29°C and overnight lows near 23°C, with 194 mm of rain across 15.6 wet days and about 13.5 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 28% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 14 hours at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Shibata's 1st-clearest and 11th-windiest month. For the whole year in context, see Shibata's year-round climate.

Daytime high
29°
1st warmest
Overnight low
23°
12th coldest
Rainfall
194 mm
15.6 wet days
Daylight
13 h 30 min
5:02 AM – 6:31 PM
Cloud cover
61%
1st clearest
Wind
8 km/h
11th windiest
Solar energy
5.04 kWh/m²
Travel score
4.8
out of 10

Shibata is city in Niigata Prefecture, Japan.

Density
181/km²
people per km²
Founded
1947

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical August day in Shibata reaches about 29°C in the afternoon and slips back to 23°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 33°C. Set against its neighbours, August runs about 2°C warmer than July and about 4°C warmer than September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12923
22923
32923
43024
53024
63024
73024
83024
93024
102923
112923
122923
132923
142923
152923
162923
172923
182923
192923
202923
212923
222923
232923
242923
252822
262822
272822
282822
292822
302822
312822

How August really feels in Shibata

Once humidity and wind are folded in, August averages 16 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
16
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Shibata weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 21726.720.49.70.0
Feb / 14821.516.410.50.1
Mar / 14520.49.211.71.2
Apr14° / 11514.71.1133.8
May20° / 13°12313.20145.8
Jun24° / 17°15513.5014.66.1
Jul27° / 22°27418.1014.45.0
Aug29° / 23°19415.6013.54.8
Sep25° / 19°16015012.35.7
Oct19° / 13°17016.10115.3
Nov13° / 19119.71.29.92.9
Dec / 2332512.19.40.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24555
34654
44654
54654
64753
74753
84753
94753
104753
114753
124753
134852
144852
154852
164753
174753
184753
194753
204852
214852
224852
234753
244753
254753
264753
274654
284654
294555
304555
314555

Chance of precipitation in August

Any precipitation

Shibata gets around 194 mm of rain over 15.6 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 50% and peaks near 54% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
145
245
345
445
545
645
745
846
946
1047
1148
1249
1350
1450
1551
1652
1753
1853
1953
2054
2154
2254
2354
2454
2553
2653
2753
2853
2952
3052
3152

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 91% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
104176712
204166812
304166713
404176613
504176514
605176414
705186314
805186314
905186314
1005196214
1105196214
1215206113
1316206013
1416215913
1516225912
1616225912
1717235811
1817245711
1927245710
202825569
212826559
222828548
232929537
242930536
2521032506
2621133495
2721135475
2831236454
2931337434
3031439413
3131540403

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
319calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 hours at the start of August to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over August. Sunrise moves from 4:49 AM to 5:16 AM, and sunset from 6:48 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.04:496:48
214.04:506:47
313.94:516:46
413.94:526:45
513.94:536:44
613.84:546:43
713.84:546:42
813.84:556:41
913.74:566:40
1013.74:576:39
1113.74:586:37
1213.64:596:36
1313.65:006:35
1413.65:016:34
1513.55:016:32
1613.55:026:31
1713.45:036:30
1813.45:046:28
1913.45:056:27
2013.35:066:26
2113.35:076:24
2213.35:086:23
2313.25:096:22
2413.25:106:20
2513.15:106:19
2613.15:116:17
2713.15:126:16
2813.05:136:14
2913.05:146:13
3012.95:156:11
3112.95:166:10

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.04 kWh/m².

For context, solar energy here swings from a low near 1.67 kWh/m² to a high of 5.59 kWh/m² in May across the year — August's 5.04 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.2Bright
115.2Bright
125.2Bright
135.1Bright
145.1Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
194.9Bright
204.9Bright
214.9Bright
224.8Bright
234.8Bright
244.8Bright
254.7Bright
264.7Bright
274.7Bright
284.6Bright
294.6Bright
304.6Bright
314.5Bright
Planning a trip in August

Hazard calendar for Shibata

In seasonPeak

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

Shibata 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 August a good time to visit Shibata?

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

4.8
Sightseeing
6th-best month of the year
6.1
Beach & pool
1st-best month of the year

August is a reasonable time to visit Shibata for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Shibata in August

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

In August, Shibata sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Shibata in August

The nearest coast averages about 26°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 20 km away) is warmest in August at about 26°C and coldest in March near 9°C.

It's comfortable for a long swim from Jun 21 to Oct 29 — about 4.3 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb10Bracing
Mar9Bracing
Apr11Bracing
May15Bracing
Jun20Cool
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov18Cool
Dec15Bracing

UV index in Shibata in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Shibata peaks around August 13 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 13UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul9Very high
Aug9Very high
Sep8Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Shibata in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Shibata 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 1421 µg/m³Dec 159 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar20Moderate
Apr21Moderate
May19Moderate
Jun15Moderate
Jul14Moderate
Aug12Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Shibata?

Shibata sits at 38.0°N, 139.3°E, 10 m above sea level, in Japan. The nearest listed city is Tainai, 14 km away.

Topography around Shibata

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

Within 3 km, the terrain around Shibata has only modest variations in elevation — a maximum elevation change of 76 m around an average of 12 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,413 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,110 m.

The land around Shibata is covered by artificial surfaces (45%) and cropland (38%) within 3 km, trees (42%) and cropland (28%) within 16 km, and trees (54%) and water (33%) within 80 km.

3 km
76 m
16 km
1,413 m
80 km
2,110 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Tainai 14 km · Suibara 15 km · Agano 16 km · Kameda-honchō 21 km · Niitsu-honchō 25 km · Niigata 26 km · Gosen 28 km · Muramatsu 32 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 Shibata (37.95°, 139.3333°, elevation 10 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).