Shizunai-furukawachō weather in August

In August, Shizunai-furukawachō sees average daytime highs of 21°C and overnight lows near 19°C, with 171 mm of rain across 13 wet days and about 13.7 hours of daylight. It is the 1st-warmest and 1st-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 21% of the time in August, and the air most often feels muggy.

Daylight stretches from about 14 h 18 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Shizunai-furukawachō's 10th-clearest and 10th-windiest month. For the whole year in context, see Shizunai-furukawachō's year-round climate.

Daytime high
21°
1st warmest
Overnight low
19°
12th coldest
Rainfall
171 mm
13 wet days
Daylight
13 h 42 min
4:43 AM – 6:27 PM
Cloud cover
69%
10th clearest
Wind
15 km/h
10th windiest
Solar energy
4.33 kWh/m²
Travel score
5.9
out of 10

Shizunai-furukawachō is human settlement in Japan.

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 21°C through the month.

A typical August day in Shizunai-furukawachō reaches about 21°C in the afternoon and slips back to 19°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 23°C. Set against its neighbours, August runs about 3°C warmer than July and about 1°C warmer than September.

15°18°20°23°25°151015202531
Avg high (°C)Avg low (°C)
12019
22019
32119
42119
52119
62119
72119
82119
92119
102119
112119
122120
132120
142120
152120
162120
172120
182120
192120
202120
212120
222120
232120
242120
252120
262120
272120
282119
292119
302119
312119

How August really feels in Shizunai-furukawachō

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.

Shizunai-furukawachō weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°6412.913.99.30.0
Feb / -3°479.910.810.30.0
Mar / -1°659.66.411.60.0
Apr / 8510.51.213.10.2
May / 12111.4014.42.0
Jun14° / 12°95100153.9
Jul18° / 17°15413.4014.85.2
Aug21° / 19°17113013.75.9
Sep20° / 18°15512.4012.35.8
Oct15° / 12°13012.9010.84.5
Nov / 10715.82.19.61.7
Dec / 9416.211.190.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 15% of August, with mostly cloudy or overcast conditions the remaining 64%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23268
33367
43367
53367
63367
73466
83466
93466
103466
113466
123367
133367
143466
153466
163466
173466
183565
193664
203664
213664
223862
233862
243862
253961
263961
274060
284060
294060
304159
314159

Chance of precipitation in August

Any precipitation

Shizunai-furukawachō gets around 171 mm of rain over 13 wet days in August, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 42% and peaks near 44% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
142
241
341
441
541
641
741
842
942
1042
1142
1243
1343
1443
1544
1644
1744
1844
1943
2043
2143
2243
2343
2442
2542
2642
2742
2842
2942
3042
3142

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 50% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
131334427
231333438
331233439
4312324310
5312324311
6312324211
7312324212
8312324212
9312324112
10312324113
11312324013
12312334013
13312334013
14311343913
15311343913
16311343912
17312343912
18312343912
19312343911
20313343911
21313343910
22314343910
23314343910
24315343810
2531534389
2631634389
2731634379
2831734379
2941834368
3041934368
3141934358

Wind in August

Winds average 15 km/h in August.

Across August, daily wind ranges from about 14 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 18 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 72 minutes over August. Sunrise moves from 4:27 AM to 4:59 AM, and sunset from 6:46 PM to 6:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:276:46
214.34:286:45
314.34:296:44
414.24:306:43
514.24:316:42
614.14:326:40
714.14:336:39
814.14:346:38
914.04:356:37
1014.04:366:35
1113.94:376:34
1213.94:386:32
1313.94:396:31
1413.84:416:30
1513.84:426:28
1613.74:436:27
1713.74:446:25
1813.64:456:24
1913.64:466:22
2013.64:476:20
2113.54:486:19
2213.54:496:17
2313.44:506:16
2413.44:516:14
2513.34:526:12
2613.34:546:11
2713.24:556:09
2813.24:566:07
2913.14:576:06
3013.14:586:04
3113.14:596:02

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.33 kWh/m².

For context, solar energy here swings from a low near 1.65 kWh/m² to a high of 5.41 kWh/m² in May across the year — August's 4.33 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.4Bright
104.4Bright
114.4Bright
124.4Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.1Bright
314.1Bright
Planning a trip in August

Hazard calendar for Shizunai-furukawachō

In seasonPeak

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

Shizunai-furukawachō 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 Shizunai-furukawachō?

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

5.9
Sightseeing
1st-best month of the year
3.6
Beach & pool
1st-best month of the year

August is a reasonable time to visit Shizunai-furukawachō for sightseeing.

What to pack for Shizunai-furukawachō in August

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

In August, Shizunai-furukawachō sees daytime highs around 21°C and nights near 19°C. Worth packing: rain gear. About 13 days see rain.

rain gear

Sea temperature near Shizunai-furukawachō in August

The nearest coast averages about 20°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 August at about 20°C and coldest in March near 3°C.

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

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan6Bracing
Feb3Bracing
Mar3Bracing
Apr5Bracing
May8Bracing
Jun12Bracing
Jul17Cool
Aug20Cool
Sep20Cool
Oct17Cool
Nov13Bracing
Dec10Bracing

UV index in Shizunai-furukawachō 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 Shizunai-furukawachō peaks around August 18 at about 8 (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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 18UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr6High
May8Very high
Jun7High
Jul5Moderate
Aug9Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Shizunai-furukawachō 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 Shizunai-furukawachō is worst in April — around 16 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1216 µg/m³Dec 177 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar15Moderate
Apr16Moderate
May14Moderate
Jun9Good
Jul8Good
Aug8Good
Sep8Good
Oct9Good
Nov8Good
Dec7Good
Location & terrain

Where is Shizunai-furukawachō?

Shizunai-furukawachō sits at 42.3°N, 142.4°E, 4 m above sea level, in Japan. The nearest listed city is Tomakomai, 71 km away.

Topography around Shizunai-furukawachō

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

Within 3 km, the terrain around Shizunai-furukawachō has only modest variations in elevation — a maximum elevation change of 146 m around an average of 26 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 709 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,014 m.

The land around Shizunai-furukawachō is covered by water (43%) and trees (22%) within 3 km, water (51%) and trees (34%) within 16 km, and trees (55%) and water (35%) within 80 km.

3 km
146 m
16 km
709 m
80 km
2,014 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Tomakomai 71 km · Chitose 80 km · Memuro-minami 84 km · Shiraoi 87 km · Eniwa 90 km · Obihiro 94 km · Kitahiroshima 97 km · Noboribetsu 98 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 Shizunai-furukawachō (42.3339°, 142.3669°, elevation 4 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).