Masuda weather in August

In August, Masuda sees average daytime highs of 28°C and overnight lows near 25°C, with 134 mm of rain across 11.2 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 35% 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 Masuda's 4th-clearest and 11th-windiest month. For the whole year in context, see Masuda's year-round climate.

Daytime high
28°
1st warmest
Overnight low
25°
12th coldest
Rainfall
134 mm
11.2 wet days
Daylight
13 h 18 min
5:37 AM – 6:56 PM
Cloud cover
58%
4th clearest
Wind
15 km/h
11th windiest
Solar energy
5.11 kWh/m²
Travel score
6.2
out of 10

Masuda is city in Shimane Prefecture, Japan.

Density
61/km²
people per km²
Founded
1952

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 28°C through the month.

A typical August day in Masuda reaches about 28°C in the afternoon and slips back to 25°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°C. Set against its neighbours, August runs about 2°C warmer than July and about 3°C warmer than September.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12825
22825
32825
42825
52825
62825
72826
82826
92826
102826
112825
122825
132825
142825
152825
162825
172825
182825
192825
202825
212825
222825
232725
242725
252725
262725
272725
282724
292724
302724
312724

Masuda weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 14418.23.89.91.2
Feb / 12115.23.110.71.5
Mar12° / 14513.90.811.72.7
Apr15° / 12°12411.6012.84.6
May19° / 16°13110.6013.86.1
Jun22° / 20°19612.8014.36.0
Jul26° / 24°22712.8014.16.1
Aug28° / 25°13411.2013.36.2
Sep25° / 22°18012012.26.5
Oct20° / 18°11110.1011.16.5
Nov16° / 13°10812010.24.7
Dec11° / 14517.31.79.72.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% 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 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25446
35347
45248
55248
65149
75248
85149
95050
105050
114951
124951
134951
144951
154951
164852
174852
184951
194951
204951
214951
224951
234951
244951
254852
264753
274654
284654
294654
304753
314753

Chance of precipitation in August

Any precipitation

Masuda gets around 134 mm of rain over 11.2 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 36% and peaks near 41% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
129
229
329
430
530
631
732
832
933
1034
1135
1236
1338
1438
1539
1640
1740
1841
1941
2041
2140
2240
2340
2440
2539
2639
2739
2839
2939
3039
3139

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 51% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1055342
2055144
3055045
4054946
5054946
6054847
7154847
8154847
9154847
10154847
11154846
12154945
13155044
14165142
15165241
16175339
17185338
18195436
192105434
202115433
212135431
222145529
233165427
243175525
253195424
264205422
274225321
284245319
295255218
305275216
316285115

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 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

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 5:26 AM to 5:49 AM, and sunset from 7:11 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:267:11
213.75:277:10
313.75:277:10
413.75:287:09
513.65:297:08
613.65:307:07
713.65:317:06
813.65:317:05
913.55:327:04
1013.55:337:03
1113.55:347:02
1213.45:347:01
1313.45:356:59
1413.45:366:58
1513.35:376:57
1613.35:376:56
1713.35:386:55
1813.25:396:54
1913.25:406:52
2013.25:406:51
2113.15:416:50
2213.15:426:49
2313.15:436:47
2413.05:436:46
2513.05:446:45
2613.05:456:43
2712.95:466:42
2812.95:466:41
2912.95:476:39
3012.85:486:38
3112.85:496:37

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.11 kWh/m².

For context, solar energy here swings from a low near 2.01 kWh/m² to a high of 5.67 kWh/m² in May across the year — August's 5.11 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.2Bright
155.1Bright
165.1Bright
175.1Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
224.9Bright
234.9Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.7Bright
294.7Bright
304.6Bright
314.6Bright
Planning a trip in August

Hazard calendar for Masuda

In seasonPeak

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

Masuda 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 Masuda?

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

6.2
Sightseeing
3rd-best month of the year
6.6
Beach & pool
1st-best month of the year

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

What to pack for Masuda in August

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

In August, Masuda sees daytime highs around 28°C and nights near 25°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Masuda 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 21 km away) is warmest in August at about 27°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 9 to Nov 20 — about 5.4 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb14Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul24Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Refreshing
Dec18Cool

UV index in Masuda 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 Masuda peaks around July 14 at about 10 (extreme) — 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 highVery highModerateJul 14UV 10Dec 22UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7Very high
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Masuda 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 Masuda is worst in April — around 22 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 1022 µg/m³Oct 1310 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar22Moderate
Apr22Moderate
May20Moderate
Jun17Moderate
Jul13Moderate
Aug12Moderate
Sep11Good
Oct10Good
Nov12Moderate
Dec12Good
Location & terrain

Where is Masuda?

Masuda sits at 34.7°N, 131.8°E, 14 m above sea level, in Japan. The nearest listed city is Hamada, 32 km away.

Topography around Masuda

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

Within 3 km, the terrain around Masuda has only modest variations in elevation — a maximum elevation change of 246 m around an average of 72 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 872 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,326 m.

The land around Masuda is covered by trees (72%) within 3 km, trees (69%) and water (27%) within 16 km, and trees (55%) and water (40%) within 80 km.

3 km
246 m
16 km
872 m
80 km
1,326 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Hamada 32 km · Hagi 50 km · Gōtsuchō 51 km · Hatsukaichi 57 km · Ōno-hara 57 km · Miyajima 60 km · Ōtake 61 km · Gion 62 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 Masuda (34.6667°, 131.85°, elevation 14 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).