Yokkaichi weather in August

In August, Yokkaichi sees average daytime highs of 30°C and overnight lows near 25°C, with 144 mm of rain across 14.5 wet days and about 13.2 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 31°C in the first days to 29°C by the end. The sky is clear or mostly clear about 27% 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 Yokkaichi's 8th-clearest and 10th-windiest month. For the whole year in context, see Yokkaichi's year-round climate.

Daytime high
30°
1st warmest
Overnight low
25°
12th coldest
Rainfall
144 mm
14.5 wet days
Daylight
13 h 18 min
5:41 AM – 6:56 PM
Cloud cover
63%
8th clearest
Wind
8 km/h
10th windiest
Solar energy
4.93 kWh/m²
Travel score
4.3
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 31°C in the first days to 29°C by the end.

A typical August day in Yokkaichi reaches about 30°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 33°C. Set against its neighbours, August runs about 1°C warmer than July and about 4°C warmer than September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13125
23125
33125
43125
53125
63125
73125
83125
93125
103125
113125
123125
133125
143125
153125
163125
173125
183025
193025
203025
213025
223025
233024
243024
253024
263024
273024
283024
292924
302924
312924

How August really feels in Yokkaichi

Once humidity and wind are folded in, August averages 30 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
30
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.

Yokkaichi 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 / 618.42101.6
Feb / 7091.910.82.0
Mar13° / 11211.50.611.73.5
Apr18° / 11°12510.7012.85.7
May23° / 16°14311013.76.5
Jun26° / 20°28215.4014.25.6
Jul30° / 24°22116.10144.3
Aug30° / 25°14414.5013.24.3
Sep27° / 21°16713.1012.25.9
Oct22° / 16°1118.1011.27.0
Nov16° / 10°758.1010.35.4
Dec11° / 618.50.79.82.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% 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 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34852
44753
54654
64654
74555
84555
94555
104456
114456
124357
134357
144357
154357
164456
174456
184456
194456
204555
214555
224555
234555
244555
254456
264456
274456
284456
294456
304456
314456

Chance of precipitation in August

Any precipitation

Yokkaichi gets around 144 mm of rain over 14.5 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 47% and peaks near 51% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
144
243
343
443
543
643
744
844
944
1045
1145
1246
1346
1446
1547
1647
1748
1848
1948
2049
2149
2249
2349
2450
2550
2650
2750
2850
2951
3051
3151

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 73% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10147421
20147421
30047521
40047521
50037621
60047521
70047620
80047620
90047620
100047620
110057619
120057619
130067519
140067618
150177418
160177517
170187417
180197416
1901107415
2001117315
2102127214
2212137113
2312147112
2413157011
2513176910
261418689
271419688
281520677
291621666
301622656
311724635

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.

051015151015202531
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 5:30 AM to 5:52 AM, and sunset from 7:11 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:307:11
213.75:317:10
313.65:327:09
413.65:327:09
513.65:337:08
613.55:347:07
713.55:357:06
813.55:357:05
913.55:367:04
1013.45:377:03
1113.45:387:02
1213.45:387:01
1313.35:397:00
1413.35:406:59
1513.35:406:58
1613.35:416:56
1713.25:426:55
1813.25:436:54
1913.25:436:53
2013.15:446:52
2113.15:456:51
2213.15:456:49
2313.05:466:48
2413.05:476:47
2513.05:486:46
2612.95:486:44
2712.95:496:43
2812.95:506:42
2912.85:506:40
3012.85:516:39
3112.85:526:38

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.93 kWh/m².

For context, solar energy here swings from a low near 2.25 kWh/m² to a high of 5.34 kWh/m² in May across the year — August's 4.93 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.1Bright
105.1Bright
115.1Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
164.9Bright
174.9Bright
184.9Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.7Bright
244.7Bright
254.7Bright
264.6Bright
274.6Bright
284.5Bright
294.5Bright
304.5Bright
314.4Bright
Planning a trip in August

Hazard calendar for Yokkaichi

In seasonPeak

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

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

Yokkaichi's rainy season runs May–September, 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 Yokkaichi?

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

4.3
Sightseeing
7th-best month of the year
6.0
Beach & pool
2nd-best month of the year

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

What to pack for Yokkaichi in August

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

In August, Yokkaichi sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

Sea temperature near Yokkaichi 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 offshore is warmest in August at about 27°C and coldest in February near 12°C.

It's comfortable for a long swim from Jun 6 to Nov 10 — about 5.2 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May17Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov19Cool
Dec16Cool

UV index in Yokkaichi 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 Yokkaichi peaks around June 21 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highModerateJun 21UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr8Very high
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Yokkaichi 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 Yokkaichi is worst in March — around 27 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2026 µg/m³Oct 1212 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb20Moderate
Mar27Moderate
Apr24Moderate
May21Moderate
Jun18Moderate
Jul16Moderate
Aug19Moderate
Sep13Moderate
Oct12Good
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Yokkaichi?

Yokkaichi sits at 33.5°N, 131.3°E, 15 m above sea level, in Japan. The nearest listed city is Bungo-Takada-shi, 11 km away.

Topography around Yokkaichi

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

Within 3 km, the terrain around Yokkaichi has only modest variations in elevation — a maximum elevation change of 147 m around an average of 24 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 747 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,799 m.

The land around Yokkaichi is covered by cropland (46%), artificial surfaces (27%) and trees (21%) within 3 km, trees (48%) and water (27%) within 16 km, and trees (51%) and water (35%) within 80 km.

3 km
147 m
16 km
747 m
80 km
1,799 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Bungo-Takada-shi 11 km · Nakatsu 15 km · Buzen 20 km · Hiji 26 km · Kitsuki 30 km · Tsuiki 31 km · Beppu 33 km · Tsukawaki 33 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 Yokkaichi (33.5354°, 131.3281°, elevation 15 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).