Shibetsu weather in August

In August, Shibetsu sees average daytime highs of 21°C and overnight lows near 16°C, with 150 mm of rain across 12.4 wet days and about 13.8 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 12% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 14 h 24 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Shibetsu's 11th-clearest and 11th-windiest month. For the whole year in context, see Shibetsu's year-round climate.

Daytime high
21°
1st warmest
Overnight low
16°
12th coldest
Rainfall
150 mm
12.4 wet days
Daylight
13 h 48 min
4:29 AM – 6:18 PM
Cloud cover
78%
11th clearest
Wind
12 km/h
11th windiest
Solar energy
4.21 kWh/m²
Travel score
5.7
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 21°C through the month.

A typical August day in Shibetsu reaches about 21°C in the afternoon and slips back to 16°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 25°C. Set against its neighbours, August runs about 2°C warmer than July and about 2°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12015
22016
32116
42116
52116
62116
72116
82116
92116
102116
112116
122116
132116
142116
152116
162116
172116
182116
192116
202116
212116
222116
232116
242116
252116
262116
272015
282015
292015
302015
312015

How August really feels in Shibetsu

Once humidity and wind are folded in, August 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

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

Shibetsu weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -9°598.710.79.10.0
Feb-3° / -10°486.97.710.20.0
Mar / -6°769.8911.60.0
Apr / -0°8611.2513.20.7
May11° / 9611.20.614.52.8
Jun15° / 8310.1015.24.3
Jul18° / 13°11511.1014.95.5
Aug21° / 16°15012.4013.85.7
Sep19° / 13°16612.5012.35.5
Oct14° / 12711.10.110.83.9
Nov / 8711.22.99.51.0
Dec / -5°789.79.68.80.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 10% of August, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12179
22179
32179
42179
52179
62179
72278
82278
92278
102179
112080
122080
132080
142080
152080
162080
172080
182179
192179
202278
212278
222377
232476
242575
252674
262674
272773
282872
292971
302971
312971

Chance of precipitation in August

Any precipitation

Shibetsu gets around 150 mm of rain over 12.4 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 41% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
241
342
442
542
642
742
842
942
1042
1142
1242
1342
1442
1541
1641
1741
1840
1940
2040
2139
2239
2339
2439
2539
2639
2739
2840
2940
3040
3140

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 22% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1202627261
2202527261
3192527272
4192527272
5182528272
6182628272
7172628262
8172729252
9162829252
10162929242
11153030232
12153130222
13143230222
14143330212
15133430202
16133531202
17133531192
18133631192
19133631182
20143631181
21143631171
22143731171
23153731171
24153731161
25163630161
26173630151
27173630151
28183630151
29193630141
30203630141
31213630131

Wind in August

Winds average 12 km/h in August.

Across August, daily wind ranges from about 11 km/h on the calmest days to 12 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
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 24 min at the start of August to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over August. Sunrise moves from 4:12 AM to 4:46 AM, and sunset from 6:39 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.44:126:39
214.44:136:38
314.44:146:36
414.34:166:35
514.34:176:34
614.24:186:33
714.24:196:31
814.24:206:30
914.14:216:28
1014.14:226:27
1114.04:236:26
1214.04:256:24
1313.94:266:23
1413.94:276:21
1513.94:286:20
1613.84:296:18
1713.84:306:16
1813.74:316:15
1913.74:336:13
2013.64:346:12
2113.64:356:10
2213.54:366:08
2313.54:376:07
2413.44:386:05
2513.44:396:03
2613.34:416:01
2713.34:426:00
2813.24:435:58
2913.24:445:56
3013.24:455:54
3113.14:465:53

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.21 kWh/m².

For context, solar energy here swings from a low near 1.64 kWh/m² to a high of 5.21 kWh/m² in May across the year — August's 4.21 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.4Bright
74.4Bright
84.4Bright
94.3Bright
104.3Bright
114.3Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.1Bright
224.0Bright
234.0Bright
244.0Bright
254.0Bright
264.0Bright
274.0Bright
284.0Moderate
294.0Moderate
303.9Moderate
313.9Moderate
Planning a trip in August

Hazard calendar for Shibetsu

In seasonPeak

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

Shibetsu 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 Shibetsu?

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

5.7
Sightseeing
1st-best month of the year
3.2
Beach & pool
1st-best month of the year

August is a reasonable time to visit Shibetsu for sightseeing.

What to pack for Shibetsu in August

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

In August, Shibetsu sees daytime highs around 21°C and nights near 16°C. Worth packing: rain gear. About 12 days see rain.

rain gear

Sea temperature near Shibetsu in August

The nearest coast averages about 17°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in September at about 17°C and coldest in February near -0°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan2Bracing
Feb0Bracing
Mar0Bracing
Apr2Bracing
May5Bracing
Jun9Bracing
Jul13Bracing
Aug17Cool
Sep17Cool
Oct14Bracing
Nov10Bracing
Dec5Bracing

UV index in Shibetsu 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 Shibetsu peaks around August 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highModerateLowAug 17UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May7High
Jun7High
Jul6High
Aug9Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Shibetsu?

Shibetsu sits at 43.7°N, 145.1°E, 2 m above sea level, in Japan. The nearest listed city is Nakashibetsu, 18 km away.

EngaruMombetsu

Topography around Shibetsu

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

Within 3 km, the terrain around Shibetsu has only modest variations in elevation — a maximum elevation change of 35 m around an average of 6 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 482 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,608 m.

The land around Shibetsu is covered by water (43%) and trees (31%) within 3 km, water (45%) and trees (27%) within 16 km, and water (55%) and trees (31%) within 80 km.

3 km
35 m
16 km
482 m
80 km
1,608 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Nakashibetsu 18 km · Nemuro 52 km · Abashiri 80 km · Motomachi 85 km · Kushiro 98 km · Kitami 101 km · Engaru 134 km · Mombetsu 162 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 Shibetsu (43.659°, 145.132°, elevation 2 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).