Sandachō weather in August

In August, Sandachō sees average daytime highs of 31°C and overnight lows near 23°C, with 134 mm of rain across 13.9 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 26% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 13 h 48 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Sandachō's 5th-clearest and 11th-windiest month. For the whole year in context, see Sandachō's year-round climate.

Daytime high
31°
1st warmest
Overnight low
23°
12th coldest
Rainfall
134 mm
13.9 wet days
Daylight
13 h 18 min
5:24 AM – 6:43 PM
Cloud cover
62%
5th clearest
Wind
9 km/h
11th windiest
Solar energy
5.25 kWh/m²
Travel score
4.1
out of 10

Sandachō is city in Hyōgo Prefecture, Japan.

Density
632/km²
people per km²
Founded
1958

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 31°C through the month.

A typical August day in Sandachō reaches about 31°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 34°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)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193123
203123
213123
223123
233123
243023
253023
263023
273023
283023
293023
303022
313022

How August really feels in Sandachō

Once humidity and wind are folded in, August averages 30 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
30
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.

Sandachō weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 5571.49.91.2
Feb / 648.11.810.71.6
Mar12° / 11211.70.511.73.2
Apr18° / 12510.9012.95.5
May22° / 14°14711.1013.86.4
Jun26° / 18°18614.1014.35.7
Jul29° / 23°22116.6014.14.4
Aug31° / 23°13413.9013.34.1
Sep27° / 20°19612.9012.25.8
Oct21° / 14°1549.2011.16.7
Nov16° / 787010.25.2
Dec10° / 6270.69.72.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24456
34555
44555
54456
64456
74456
84456
94456
104456
114456
124456
134456
144456
154456
164456
174555
184654
194555
204555
214555
224555
234555
244654
254555
264456
274357
284357
294357
304357
314456

Chance of precipitation in August

Any precipitation

Sandachō gets around 134 mm of rain over 13.9 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 46% and peaks near 48% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
148
247
347
447
547
647
746
846
946
1046
1145
1245
1345
1445
1546
1645
1745
1845
1945
2045
2145
2245
2345
2445
2545
2645
2745
2845
2945
3045
3145

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 63% of days. Sticky, muggy-or-worse air turns up on roughly 93% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10213769
202137510
302137510
402137510
502147311
602147311
702157211
803157111
903166912
1003166912
1103176812
1213176712
1313186612
1413186612
1513196611
1614196511
1714206411
1814216311
1915226210
202523619
212625589
222726578
232727577
242827576
252928556
2621029545
2721130534
2821230524
2921331513
3031431493
3131532482

Wind in August

Winds average 9 km/h in August.

Across August, daily wind ranges from about 9 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
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 48 min at the start of August to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over August. Sunrise moves from 5:12 AM to 5:35 AM, and sunset from 6:58 PM to 6:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:126:58
213.75:136:57
313.75:146:56
413.75:146:56
513.75:156:55
613.65:166:54
713.65:176:53
813.65:176:52
913.55:186:51
1013.55:196:50
1113.55:206:48
1213.45:206:47
1313.45:216:46
1413.45:226:45
1513.45:236:44
1613.35:246:43
1713.35:246:42
1813.35:256:40
1913.25:266:39
2013.25:276:38
2113.25:276:37
2213.15:286:35
2313.15:296:34
2413.15:306:33
2513.05:306:31
2613.05:316:30
2712.95:326:29
2812.95:336:27
2912.95:336:26
3012.85:346:25
3112.85:356:23

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.25 kWh/m².

For context, solar energy here swings from a low near 2.3 kWh/m² to a high of 5.48 kWh/m² in May across the year — August's 5.25 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.2Bright
175.2Bright
185.2Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.0Bright
245.0Bright
255.0Bright
264.9Bright
274.9Bright
284.8Bright
294.8Bright
304.8Bright
314.7Bright
Planning a trip in August

Hazard calendar for Sandachō

In seasonPeak

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

Sandachō 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 Sandachō?

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

4.1
Sightseeing
8th-best month of the year
6.0
Beach & pool
2nd-best month of the year

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

What to pack for Sandachō in August

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

In August, Sandachō sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 14 days see rain.

light clothesrain gearsun protection

Sea temperature near Sandachō in August

The nearest coast averages about 27°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 30 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 6 to Nov 12 — about 5.3 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec17Cool

UV index in Sandachō in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sandachō peaks around July 10 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 highModerateJul 10UV 10Dec 22UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun10Very high
Jul10Very high
Aug8Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Sandachō 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 Sandachō is worst in April — around 22 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1622 µg/m³Oct 1811 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb16Moderate
Mar21Moderate
Apr22Moderate
May21Moderate
Jun18Moderate
Jul17Moderate
Aug17Moderate
Sep13Moderate
Oct11Good
Nov12Moderate
Dec12Good
Location & terrain

Where is Sandachō?

Sandachō sits at 34.9°N, 135.2°E, 147 m above sea level, in Japan. The nearest listed city is Kimokawa, 13 km away.

Topography around Sandachō

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

Within 3 km, the terrain around Sandachō has only modest variations in elevation — a maximum elevation change of 191 m around an average of 186 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 907 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,320 m.

The land around Sandachō is covered by trees (44%) and artificial surfaces (31%) within 3 km, trees (74%) within 16 km, and trees (60%) within 80 km.

3 km
191 m
16 km
907 m
80 km
1,320 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Kimokawa 13 km · Takarazuka 15 km · Ashiya 19 km · Katō 19 km · Kawanishi 19 km · Itami 19 km · Ikeda 20 km · Sasayama 20 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 Sandachō (34.8844°, 135.2269°, elevation 147 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).