Higashihiroshima weather in August

In August, Higashihiroshima sees average daytime highs of 31°C and overnight lows near 23°C, with 132 mm of rain across 12.5 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 5th-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 42 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Higashihiroshima's 6th-clearest and 11th-windiest month. For the whole year in context, see Higashihiroshima's year-round climate.

Daytime high
31°
1st warmest
Overnight low
23°
12th coldest
Rainfall
132 mm
12.5 wet days
Daylight
13 h 18 min
5:34 AM – 6:52 PM
Cloud cover
62%
6th clearest
Wind
8 km/h
11th windiest
Solar energy
5.16 kWh/m²
Travel score
4.2
out of 10

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 Higashihiroshima reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°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
183123
193123
203123
213123
223123
233123
243123
253123
263023
273023
283022
293022
303022
313022

How August really feels in Higashihiroshima

Once humidity and wind are folded in, August averages 29 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
29
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.

Higashihiroshima weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 456.11.4101.7
Feb10° / 577.81.710.72.1
Mar13° / 10110.50.611.73.7
Apr19° / 1179.8012.85.9
May23° / 14°1349.8013.86.8
Jun26° / 18°20113.3014.35.8
Jul29° / 23°22514.5014.14.6
Aug31° / 23°13212.5013.34.2
Sep28° / 19°16911.6012.25.8
Oct22° / 13°1037.9011.17.1
Nov16° / 636.6010.25.5
Dec11° / 536.40.59.72.8

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 19% of August, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34753
44753
54753
64753
74753
84753
94654
104654
114654
124555
134555
144555
154555
164456
174555
184555
194555
204654
214654
224654
234654
244456
254456
264555
274555
284555
294456
304357
314357

Chance of precipitation in August

Any precipitation

Higashihiroshima gets around 132 mm of rain over 12.5 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 43% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
338
438
538
638
738
838
939
1039
1139
1240
1340
1440
1541
1641
1741
1841
1942
2042
2142
2242
2342
2443
2543
2643
2743
2843
2943
3043
3143

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 61% of days. Sticky, muggy-or-worse air turns up on roughly 92% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10222715
20222715
30221716
40222706
50222706
60222715
70222715
80223705
90223705
100224695
110324694
120325684
131326664
141326664
151427653
161427653
171528633
181529632
192630602
202631592
212731582
222832571
233933541
243934531
2531034521
2641135491
2741236471
2851336451
2951437430
3061537410
3161737400

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

0246810151015202531
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
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 42 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 54 minutes over August. Sunrise moves from 5:23 AM to 5:45 AM, and sunset from 7:07 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:237:07
213.75:247:06
313.75:247:06
413.75:257:05
513.65:267:04
613.65:277:03
713.65:277:02
813.55:287:01
913.55:297:00
1013.55:306:59
1113.55:306:58
1213.45:316:57
1313.45:326:55
1413.45:336:54
1513.35:336:53
1613.35:346:52
1713.35:356:51
1813.25:366:50
1913.25:366:48
2013.25:376:47
2113.15:386:46
2213.15:396:45
2313.15:396:43
2413.05:406:42
2513.05:416:41
2613.05:426:40
2712.95:426:38
2812.95:436:37
2912.95:446:36
3012.85:456:34
3112.85:456:33

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.16 kWh/m².

For context, solar energy here swings from a low near 2.22 kWh/m² to a high of 5.59 kWh/m² in May across the year — August's 5.16 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.1Bright
185.1Bright
195.1Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
244.9Bright
254.9Bright
264.9Bright
274.8Bright
284.8Bright
294.8Bright
304.7Bright
314.7Bright
Planning a trip in August

Hazard calendar for Higashihiroshima

In seasonPeak

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

Higashihiroshima sits in the Pacific typhoon belt; the season peaks July–October.

Higashihiroshima's rainy season runs April–October, when most of the year's rain falls.

Pacific typhoon
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Higashihiroshima?

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

4.2
Sightseeing
8th-best month of the year
6.2
Beach & pool
2nd-best month of the year

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

What to pack for Higashihiroshima in August

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

In August, Higashihiroshima sees daytime highs around 31°C and nights near 23°C. Pack light clothes. Worth having: rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

Sea temperature near Higashihiroshima 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 33 km away) is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 13 to Nov 17 — about 5.2 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun20Refreshing
Jul24Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Higashihiroshima 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 Higashihiroshima peaks around July 15 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highModerateJul 15UV 10Dec 23UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7Very high
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Higashihiroshima 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 Higashihiroshima 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 1322 µg/m³Oct 1711 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar21Moderate
Apr22Moderate
May20Moderate
Jun18Moderate
Jul14Moderate
Aug14Moderate
Sep12Good
Oct11Good
Nov12Good
Dec11Good
Location & terrain

Where is Higashihiroshima?

Higashihiroshima sits at 34.4°N, 132.7°E, 217 m above sea level, in Japan. The nearest listed city is Kumano, 17 km away.

Topography around Higashihiroshima

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

Within 3 km, the terrain around Higashihiroshima has significant variations in elevation — a maximum elevation change of 268 m around an average of 229 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 794 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,900 m.

The land around Higashihiroshima is covered by artificial surfaces (42%) and trees (29%) within 3 km, trees (77%) within 16 km, and trees (66%) and water (26%) within 80 km.

3 km
268 m
16 km
794 m
80 km
1,900 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Kumano 17 km · Takehara 18 km · Kaitaichi 19 km · Fuchū 21 km · Gion 25 km · Kure 25 km · Hiroshima 26 km · Aki-takata 30 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 Higashihiroshima (34.4086°, 132.7368°, elevation 217 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).