Ikaruga weather in August

In August, Ikaruga sees average daytime highs of 28°C and overnight lows near 25°C, with 112 mm of rain across 10.4 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 8th-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 36% of the time in August, and the air most often feels miserable.

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 Ikaruga's 4th-clearest and 10th-windiest month. For the whole year in context, see Ikaruga's year-round climate.

Daytime high
28°
1st warmest
Overnight low
25°
12th coldest
Rainfall
112 mm
10.4 wet days
Daylight
13 h 18 min
5:26 AM – 6:45 PM
Cloud cover
56%
4th clearest
Wind
13 km/h
10th windiest
Solar energy
5.57 kWh/m²
Travel score
6.1
out of 10

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 Ikaruga 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 26°C and 30°C. Set against its neighbours, August runs about 2°C warmer than July and about 2°C warmer than September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12825
22825
32825
42825
52825
62825
72825
82825
92825
102825
112825
122825
132825
142825
152825
162825
172825
182825
192825
202825
212825
222825
232825
242825
252825
262825
272825
282825
292825
302824
312724

How August really feels in Ikaruga

Once humidity and wind are folded in, August averages 12 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
12
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.

Ikaruga weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 507.10.49.91.9
Feb / 637.70.610.72.0
Mar12° / 1129.9011.73.2
Apr16° / 11°13110.3012.94.9
May19° / 16°14610.2013.86.1
Jun23° / 20°18512.4014.36.0
Jul26° / 24°19312.8014.16.1
Aug28° / 25°11210.4013.36.1
Sep26° / 22°19512.3012.26.4
Oct21° / 17°1448.9011.16.8
Nov16° / 12°747010.25.5
Dec11° / 616.909.73.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% 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 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25248
35347
45347
55347
65248
75248
85149
95149
105149
115050
125050
135050
144951
154951
164951
175050
185050
195050
205149
215149
225149
235149
245149
255050
265050
275050
284951
295050
305050
315050

Chance of precipitation in August

Any precipitation

Ikaruga gets around 112 mm of rain over 10.4 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 35% 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 (%)
132
232
332
432
532
631
731
832
932
1032
1133
1233
1333
1434
1534
1634
1734
1834
1935
2035
2135
2235
2336
2436
2537
2638
2738
2839
2940
3041
3141

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 46% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1054253
2054253
3054154
4054154
5054055
6054055
7054055
8064054
9063955
10163954
11163954
12173953
13173953
14183952
15183952
16293950
17293949
182103948
192114047
202124046
213134044
223134143
233144141
244154139
254164138
264174236
275194235
285204233
296214231
307224229
317234228

Wind in August

Winds average 13 km/h in August.

Across August, daily wind ranges from about 13 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light 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 5:15 AM to 5:38 AM, and sunset from 7:01 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:157:01
213.75:167:00
313.75:166:59
413.75:176:58
513.75:186:57
613.65:196:56
713.65:196:55
813.65:206:54
913.55:216:53
1013.55:226:52
1113.55:226:51
1213.45:236:50
1313.45:246:49
1413.45:256:48
1513.45:256:47
1613.35:266:45
1713.35:276:44
1813.35:286:43
1913.25:296:42
2013.25:296:40
2113.25:306:39
2213.15:316:38
2313.15:326:37
2413.05:326:35
2513.05:336:34
2613.05:346:33
2712.95:356:31
2812.95:356:30
2912.95:366:29
3012.85:376:27
3112.85:386:26

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.57 kWh/m².

For context, solar energy here swings from a low near 2.43 kWh/m² to a high of 5.75 kWh/m² in May across the year — August's 5.57 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.6Bright
145.6Bright
155.6Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.4Bright
225.4Bright
235.3Bright
245.3Bright
255.3Bright
265.2Bright
275.2Bright
285.2Bright
295.1Bright
305.1Bright
315.0Bright
Planning a trip in August

Hazard calendar for Ikaruga

In seasonPeak

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

Ikaruga 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 Ikaruga?

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

6.1
Sightseeing
3rd-best month of the year
6.7
Beach & pool
1st-best month of the year

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

What to pack for Ikaruga in August

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

In August, Ikaruga sees daytime highs around 28°C and nights near 25°C. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Ikaruga 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 24 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 7 to Nov 13 — 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
Mar13Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec16Cool

UV index in Ikaruga 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 Ikaruga peaks around July 13 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 13UV 10Dec 22UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Ikaruga 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 Ikaruga is worst in April — around 23 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (October, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1422 µg/m³Oct 1613 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb17Moderate
Mar21Moderate
Apr23Moderate
May20Moderate
Jun18Moderate
Jul15Moderate
Aug15Moderate
Sep13Moderate
Oct12Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Ikaruga?

Ikaruga sits at 34.8°N, 134.6°E, 17 m above sea level, in Japan. The nearest listed city is Tatsuno, 3.0 km away.

Topography around Ikaruga

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

Within 3 km, the terrain around Ikaruga has only modest variations in elevation — a maximum elevation change of 242 m around an average of 27 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 516 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,489 m.

The land around Ikaruga is covered by artificial surfaces (50%) and trees (24%) within 3 km, trees (46%), water (24%) and artificial surfaces (21%) within 16 km, and trees (58%) and water (27%) within 80 km.

3 km
242 m
16 km
516 m
80 km
1,489 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Tatsuno 3.0 km · Tatsunochō-tominaga 4.0 km · Aioi 11 km · Himeji 11 km · Shirahamachō-usazakiminami 14 km · Shisō 16 km · Yamazakichō-nakabirose 19 km · Kariya 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 Ikaruga (34.8347°, 134.578°, elevation 17 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).