Ikeno weather in August

In August, Ikeno sees average daytime highs of 29°C and overnight lows near 23°C, with 223 mm of rain across 16.7 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 4th-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 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 Ikeno's 8th-clearest and 11th-windiest month. For the whole year in context, see Ikeno's year-round climate.

Daytime high
29°
1st warmest
Overnight low
23°
12th coldest
Rainfall
223 mm
16.7 wet days
Daylight
13 h 18 min
5:17 AM – 6:38 PM
Cloud cover
63%
8th clearest
Wind
7 km/h
11th windiest
Solar energy
5.03 kWh/m²
Travel score
4.5
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 Ikeno reaches about 29°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 26°C and 32°C. Set against its neighbours, August runs about 1°C warmer than July and about 4°C warmer than September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
53023
63023
73023
83023
93023
103023
113023
123023
133023
143023
153023
163023
173023
182923
192923
202922
212922
222922
232922
242922
252922
262922
272922
282922
292822
302821
312821

How August really feels in Ikeno

Once humidity and wind are folded in, August averages 20 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
20
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.

Ikeno weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°9414.399.90.3
Feb / -0°9212.37.510.70.7
Mar11° / 15713.73.111.72.5
Apr16° / 18012.80.212.94.8
May21° / 13°21213.2013.86.0
Jun24° / 17°27015.9014.35.6
Jul28° / 22°36119.7014.14.5
Aug29° / 23°22316.7013.34.5
Sep26° / 19°27614.6012.25.9
Oct20° / 13°19312011.16.2
Nov14° / 118110.110.14.2
Dec / 9913.95.19.71.5

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 (%)
14357
24357
34456
44456
54456
64555
74555
84555
94555
104555
114555
124555
134555
144555
154555
164555
174555
184555
194456
204456
214555
224456
234357
244357
254357
264258
274258
284258
294258
304258
314258

Chance of precipitation in August

Any precipitation

Ikeno gets around 223 mm of rain over 16.7 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 54% and peaks near 56% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
156
256
356
455
555
654
754
854
954
1054
1154
1254
1354
1454
1554
1654
1755
1855
1955
2055
2154
2254
2354
2454
2554
2654
2753
2853
2953
3053
3153

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 94% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10223714
20223714
30222724
40222724
50222724
60223705
70223705
80223705
90223705
100223705
110223705
121223695
131224685
141324675
151324675
161324675
171425655
181425655
191526635
202527624
212627614
222728594
232729584
242830573
252931553
2621032533
2721133513
2821134503
2921235482
3021336462
3121436452

Wind in August

Winds average 7 km/h in August.

Across August, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

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 5:06 AM to 5:29 AM, and sunset from 6:54 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:066:54
213.85:066:53
313.85:076:52
413.75:086:51
513.75:096:50
613.75:096:49
713.65:106:48
813.65:116:47
913.65:126:46
1013.55:136:45
1113.55:136:44
1213.55:146:43
1313.45:156:42
1413.45:166:41
1513.45:176:39
1613.35:176:38
1713.35:186:37
1813.35:196:36
1913.25:206:35
2013.25:206:33
2113.25:216:32
2213.15:226:31
2313.15:236:29
2413.15:246:28
2513.05:246:27
2613.05:256:25
2713.05:266:24
2812.95:276:23
2912.95:286:21
3012.95:286:20
3112.85:296:18

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.03 kWh/m².

For context, solar energy here swings from a low near 2.28 kWh/m² to a high of 5.37 kWh/m² in May across the year — August's 5.03 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.8Bright
244.8Bright
254.8Bright
264.7Bright
274.7Bright
284.7Bright
294.6Bright
304.6Bright
314.5Bright
Planning a trip in August

Hazard calendar for Ikeno

In seasonPeak

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

Ikeno 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 Ikeno?

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

4.5
Sightseeing
6th-best month of the year
5.8
Beach & pool
1st-best month of the year

August is a reasonable time to visit Ikeno for sightseeing.

What to pack for Ikeno in August

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

In August, Ikeno sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near Ikeno 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 62 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 May 31 to Nov 9 — about 5.4 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
Jun22Refreshing
Jul26Warm
Aug27Warm
Sep26Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Ikeno 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 Ikeno peaks around July 15 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 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 15UV 10Jan 10UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in Ikeno 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 Ikeno is worst in April — around 26 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1125 µg/m³Aug 1817 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb20Moderate
Mar25Moderate
Apr26Moderate
May25Moderate
Jun21Moderate
Jul17Moderate
Aug17Moderate
Sep17Moderate
Oct18Moderate
Nov18Moderate
Dec16Moderate
Location & terrain

Where is Ikeno?

Ikeno sits at 35.4°N, 136.6°E, 22 m above sea level, in Japan. The nearest listed city is Gōdo, 2.0 km away.

Topography around Ikeno

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

Within 3 km, the terrain around Ikeno has significant variations in elevation — a maximum elevation change of 280 m around an average of 35 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,364 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,394 m.

The land around Ikeno is covered by artificial surfaces (43%) and cropland (34%) within 3 km, trees (53%) and artificial surfaces (26%) within 16 km, and trees (64%) within 80 km.

3 km
280 m
16 km
1,364 m
80 km
2,394 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Gōdo 2.0 km · Ibi 6.0 km · Kurono 6.0 km · Tarui 9.0 km · Mizuho 9.0 km · Kitagata 9.0 km · Ōgaki 10 km · Motosu 10 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 Ikeno (35.4333°, 136.5833°, elevation 22 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).