Hirara weather in August

In August, Hirara sees average daytime highs of 29°C and overnight lows near 28°C, with 213 mm of rain across 16.4 wet days and about 12.9 hours of daylight. It is the 1st-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 38% of the time in August, and the air most often feels miserable.

Daylight stretches from about 13 h 12 min at the start of August to 12 h 30 min by month's end. Set against the rest of the year, August is Hirara's 3rd-clearest and 11th-windiest month. For the whole year in context, see Hirara's year-round climate.

Daytime high
29°
1st warmest
Overnight low
28°
11th coldest
Rainfall
213 mm
16.4 wet days
Daylight
12 h 54 min
6:17 AM – 7:09 PM
Cloud cover
57%
3rd clearest
Wind
23 km/h
11th windiest
Solar energy
5.84 kWh/m²
Travel score
4.8
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical August day in Hirara reaches about 29°C in the afternoon and slips back to 28°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, August runs on par with July and about 1°C warmer than September.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12928
22928
32928
42928
52928
62928
72928
82928
92928
102928
112928
122928
132928
142928
152928
162928
172928
182928
192928
202928
212928
222928
232927
242927
252927
262927
272927
282927
292927
302927
312927

How August really feels in Hirara

Once humidity and wind are folded in, August averages 31 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
31
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.

Hirara 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 daysDaylight (hours)Travel score
Jan20° / 18°12914.610.65.5
Feb21° / 19°10412.311.15.7
Mar22° / 20°11712.811.86.1
Apr24° / 22°14012.612.66.4
May26° / 24°18214.313.25.9
Jun28° / 27°16914.313.55.3
Jul29° / 28°13512.813.45.2
Aug29° / 28°21316.412.94.8
Sep28° / 27°18915.112.25.4
Oct26° / 25°13412.111.46.4
Nov24° / 23°12412.910.86.4
Dec22° / 20°13312.510.56.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34753
44753
54753
64852
74852
84852
94852
104951
115050
125050
135050
145149
155149
165248
175347
185347
195446
205446
215446
225446
235446
245347
255347
265248
275248
285248
295248
305248
315248

Chance of precipitation in August

Any precipitation

Hirara gets around 213 mm of rain over 16.4 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 53% and peaks near 54% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
150
251
352
452
553
653
753
853
953
1053
1153
1253
1353
1453
1552
1652
1752
1852
1952
2052
2152
2252
2352
2453
2553
2653
2753
2854
2954
3054
3154

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the miserable band about 93% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
10595
20595
30595
40595
50595
60496
70496
80496
90496
100496
110496
120496
130496
140496
150496
160595
170595
180694
190694
200694
210793
220793
230892
241990
251990
2611089
2711188
2811287
2911386
3021484
3121583

Wind in August

Winds average 23 km/h in August.

Across August, daily wind ranges from about 22 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
123breezy
224breezy
324breezy
424breezy
524breezy
624breezy
724breezy
824breezy
924breezy
1024breezy
1123breezy
1223breezy
1323breezy
1423breezy
1523breezy
1623breezy
1723breezy
1823breezy
1922breezy
2022breezy
2122breezy
2222breezy
2322breezy
2422breezy
2522breezy
2622breezy
2722breezy
2822breezy
2922breezy
3022breezy
3122breezy

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 12 min at the start of August to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over August. Sunrise moves from 6:10 AM to 6:23 AM, and sunset from 7:20 PM to 6:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.26:107:20
213.16:107:19
313.16:117:19
413.16:117:18
513.16:127:17
613.16:127:17
713.16:137:16
813.06:137:15
913.06:147:15
1013.06:147:14
1113.06:147:13
1213.06:157:12
1312.96:157:12
1412.96:167:11
1512.96:167:10
1612.96:177:09
1712.96:177:08
1812.86:187:07
1912.86:187:06
2012.86:187:06
2112.86:197:05
2212.76:197:04
2312.76:207:03
2412.76:207:02
2512.76:207:01
2612.66:217:00
2712.66:216:59
2812.66:226:58
2912.66:226:57
3012.66:226:56
3112.56:236:55

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.84 kWh/m².

For context, solar energy here swings from a low near 2.48 kWh/m² to a high of 6.38 kWh/m² in July across the year — August's 5.84 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.0Intense
36.0Intense
46.0Intense
56.0Bright
66.0Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in August

Hazard calendar for Hirara

In seasonPeak

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

Hirara 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 Hirara?

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

4.8
Sightseeing
12th-best month of the year
6.1
Beach & pool
4th-best month of the year

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

What to pack for Hirara in August

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

In August, Hirara sees daytime highs around 29°C and nights near 28°C. Pack light clothes and rain gear. Worth having: sun protection and a windbreaker. About 16 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Hirara in August

The nearest coast averages about 29°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 29°C and coldest in February near 23°C.

The water stays above 20°C all year — warm enough for a swim any month.

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb23Refreshing
Mar23Refreshing
Apr24Warm
May26Warm
Jun28Warm
Jul29Tropical
Aug29Tropical
Sep28Tropical
Oct27Warm
Nov26Warm
Dec24Warm

UV index in Hirara in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hirara peaks around June 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 5 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJun 20UV 12Dec 21UV 5
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Very high
Apr9Very high
May10Very high
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct8Very high
Nov7High
Dec5High

Air quality in Hirara 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 Hirara is worst in March — around 16 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (June, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 1816 µg/m³Jun 217 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar16Moderate
Apr14Moderate
May10Good
Jun7Good
Jul8Good
Aug8Good
Sep8Good
Oct10Good
Nov10Good
Dec11Good
Location & terrain

Where is Hirara?

Hirara sits at 24.8°N, 125.3°E, 31 m above sea level, in Japan. The nearest listed city is Miyakojima, 2.0 km away.

ItomanTomigusukuNahaYaeseKanegusukuNanjō

Topography around Hirara

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

Within 3 km, the terrain around Hirara has only modest variations in elevation — a maximum elevation change of 91 m around an average of 32 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 114 m; within 80 km, only modest variations in elevation — a maximum elevation change of 110 m.

The land around Hirara is covered by trees (31%), cropland (28%) and artificial surfaces (26%) within 3 km, water (76%) within 16 km, and water (98%) within 80 km.

3 km
91 m
16 km
114 m
80 km
110 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Miyakojima 2.0 km · Ishigaki 127 km · Itoman 279 km · Tomigusuku 284 km · Naha 285 km · Yaese 286 km · Kanegusuku 288 km · Nanjō 289 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 Hirara (24.8038°, 125.3022°, elevation 31 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).